From 5a7e1165bb6331b1ffef24002d1b6fccfa66739e Mon Sep 17 00:00:00 2001 From: Eric Paris Date: Thu, 22 Sep 2016 11:47:29 -0400 Subject: [PATCH 001/688] 'namespaceSelector' in the NetworkPolicy example --- docs/user-guide/networkpolicies.md | 3 +++ 1 file changed, 3 insertions(+) diff --git a/docs/user-guide/networkpolicies.md b/docs/user-guide/networkpolicies.md index eb4bbe1b74..22c2ed2952 100644 --- a/docs/user-guide/networkpolicies.md +++ b/docs/user-guide/networkpolicies.md @@ -64,6 +64,9 @@ spec: role: db ingress: - from: + - namespaceSelector: + matchLabels: + project: myproject - podSelector: matchLabels: role: frontend From 3c7d5fc9c618e0116d5fd813cd079da41e00d4b3 Mon Sep 17 00:00:00 2001 From: Eric Paris Date: Thu, 22 Sep 2016 12:52:39 -0400 Subject: [PATCH 002/688] Update networkpolicies.md --- docs/user-guide/networkpolicies.md | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/docs/user-guide/networkpolicies.md b/docs/user-guide/networkpolicies.md index 22c2ed2952..0afe1791b2 100644 --- a/docs/user-guide/networkpolicies.md +++ b/docs/user-guide/networkpolicies.md @@ -84,3 +84,9 @@ __spec__: `NetworkPolicy` [spec](https://github.com/kubernetes/kubernetes/tree/{ __podSelector__: Each `NetworkPolicy` includes a `podSelector` which selects the grouping of pods to which the `ingress` rules in the policy apply. __ingress__: Each `NetworkPolicy` includes a list of whitelist `ingress` rules. Each rule allows traffic which matches both the `from` and `ports` sections. + +In plain language, this example NetworkPolicy: + +1. applies to all pods in the current (???) namespace with the label "role=db" +2. allows tcp/6379 ingress traffic to the "role=db" pods from any pod in the current namespace with the label "role=frontend" (due to the podSelector list element) +3. allows tcp/6379 ingress traffic to the "role=db" pods from any pod in the namespace "myproject" (due to the namespaceSelector list element) From c31b8d608b8c1ea55badc71b2ec1c2ff18f4329f Mon Sep 17 00:00:00 2001 From: Eric Paris Date: Thu, 22 Sep 2016 12:55:09 -0400 Subject: [PATCH 003/688] Update networkpolicies.md --- docs/user-guide/networkpolicies.md | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/docs/user-guide/networkpolicies.md b/docs/user-guide/networkpolicies.md index 0afe1791b2..bb9ab465f8 100644 --- a/docs/user-guide/networkpolicies.md +++ b/docs/user-guide/networkpolicies.md @@ -56,6 +56,7 @@ A minimal `NetworkPolicy` might look like this: ```yaml apiVersion: extensions/v1beta1 kind: NetworkPolicy +namespace: default metadata: name: test-network-policy spec: @@ -87,6 +88,6 @@ __ingress__: Each `NetworkPolicy` includes a list of whitelist `ingress` rules. In plain language, this example NetworkPolicy: -1. applies to all pods in the current (???) namespace with the label "role=db" +1. applies to all pods in the default namespace with the label "role=db" 2. allows tcp/6379 ingress traffic to the "role=db" pods from any pod in the current namespace with the label "role=frontend" (due to the podSelector list element) 3. allows tcp/6379 ingress traffic to the "role=db" pods from any pod in the namespace "myproject" (due to the namespaceSelector list element) From a27740b33ada451ba557c04696cf9438ed76ed85 Mon Sep 17 00:00:00 2001 From: Eric Paris Date: Thu, 22 Sep 2016 13:11:18 -0400 Subject: [PATCH 004/688] Update networkpolicies.md --- docs/user-guide/networkpolicies.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/user-guide/networkpolicies.md b/docs/user-guide/networkpolicies.md index bb9ab465f8..6fb1829713 100644 --- a/docs/user-guide/networkpolicies.md +++ b/docs/user-guide/networkpolicies.md @@ -56,9 +56,9 @@ A minimal `NetworkPolicy` might look like this: ```yaml apiVersion: extensions/v1beta1 kind: NetworkPolicy -namespace: default metadata: name: test-network-policy + namespace: default spec: podSelector: matchLabels: From 273ac45bb496b1aac9385548d5dbbc36573cfea0 Mon Sep 17 00:00:00 2001 From: Eric Paris Date: Thu, 22 Sep 2016 13:18:18 -0400 Subject: [PATCH 005/688] Update networkpolicies.md --- docs/user-guide/networkpolicies.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/user-guide/networkpolicies.md b/docs/user-guide/networkpolicies.md index 6fb1829713..402e1a32d2 100644 --- a/docs/user-guide/networkpolicies.md +++ b/docs/user-guide/networkpolicies.md @@ -66,7 +66,7 @@ spec: ingress: - from: - namespaceSelector: - matchLabels: + matchLabels: project: myproject - podSelector: matchLabels: From 78a113146b69c015194ef05aa64e624647781369 Mon Sep 17 00:00:00 2001 From: Babajide Fowotade Date: Sun, 25 Sep 2016 21:00:28 +0100 Subject: [PATCH 006/688] Update nodeJS code to supported es6 version LTS Nodejs now support some es6 features, on it's latest stable version 4.5. https://nodejs.org/dist/latest-v4.x/docs/api/synopsis.html --- docs/hellonode.md | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/docs/hellonode.md b/docs/hellonode.md index e489927aff..df3106c83c 100755 --- a/docs/hellonode.md +++ b/docs/hellonode.md @@ -59,13 +59,13 @@ The first step is to write the application. Save this code in a folder called "` #### server.js ```javascript -var http = require('http'); -var handleRequest = function(request, response) { +const http = require('http'); +const handleRequest = (request, response) => { console.log('Received request for URL: ' + request.url); response.writeHead(200); response.end('Hello World!'); }; -var www = http.createServer(handleRequest); +const www = http.createServer(handleRequest); www.listen(8080); ``` @@ -88,7 +88,7 @@ Next, create a file, also within `hellonode/` named `Dockerfile`. A Dockerfile d #### Dockerfile ```conf -FROM node:4.4 +FROM node:4.5 EXPOSE 8080 COPY server.js . CMD node server.js From 838352ff6eac694dddfcad2aab5fe771bbda7428 Mon Sep 17 00:00:00 2001 From: adieu Date: Thu, 1 Sep 2016 22:25:57 +0800 Subject: [PATCH 007/688] Change files in dos format to unix format. Removing ^M. --- docs/admin/limitrange/index.md | 428 ++++++++-------- docs/admin/salt.md | 212 ++++---- .../centos/centos_manual_config.md | 364 ++++++------- .../coreos/bare_metal_calico.md | 418 +++++++-------- .../fedora/fedora_ansible_config.md | 482 +++++++++--------- .../fedora/fedora_manual_config.md | 438 ++++++++-------- .../fedora/flannel_multi_node_cluster.md | 382 +++++++------- ...connecting-to-applications-port-forward.md | 100 ++-- .../connecting-to-applications-proxy.md | 62 +-- docs/user-guide/getting-into-containers.md | 146 +++--- docs/user-guide/logging.md | 158 +++--- 11 files changed, 1595 insertions(+), 1595 deletions(-) diff --git a/docs/admin/limitrange/index.md b/docs/admin/limitrange/index.md index f38737981d..74c0957f23 100644 --- a/docs/admin/limitrange/index.md +++ b/docs/admin/limitrange/index.md @@ -1,214 +1,214 @@ ---- -assignees: -- derekwaynecarr -- janetkuo - ---- - -By default, pods run with unbounded CPU and memory limits. This means that any pod in the -system will be able to consume as much CPU and memory on the node that executes the pod. - -Users may want to impose restrictions on the amount of resource a single pod in the system may consume -for a variety of reasons. - -For example: - -1. Each node in the cluster has 2GB of memory. The cluster operator does not want to accept pods -that require more than 2GB of memory since no node in the cluster can support the requirement. To prevent a -pod from being permanently unscheduled to a node, the operator instead chooses to reject pods that exceed 2GB -of memory as part of admission control. -2. A cluster is shared by two communities in an organization that runs production and development workloads -respectively. Production workloads may consume up to 8GB of memory, but development workloads may consume up -to 512MB of memory. The cluster operator creates a separate namespace for each workload, and applies limits to -each namespace. -3. Users may create a pod which consumes resources just below the capacity of a machine. The left over space -may be too small to be useful, but big enough for the waste to be costly over the entire cluster. As a result, -the cluster operator may want to set limits that a pod must consume at least 20% of the memory and cpu of their -average node size in order to provide for more uniform scheduling and to limit waste. - -This example demonstrates how limits can be applied to a Kubernetes [namespace](/docs/admin/namespaces/walkthrough/) to control -min/max resource limits per pod. In addition, this example demonstrates how you can -apply default resource limits to pods in the absence of an end-user specified value. - -See [LimitRange design doc](https://github.com/kubernetes/kubernetes/blob/{{page.githubbranch}}/docs/design/admission_control_limit_range.md) for more information. For a detailed description of the Kubernetes resource model, see [Resources](/docs/user-guide/compute-resources/) - -## Step 0: Prerequisites - -This example requires a running Kubernetes cluster. See the [Getting Started guides](/docs/getting-started-guides/) for how to get started. - -Change to the `` directory if you're not already there. - -## Step 1: Create a namespace - -This example will work in a custom namespace to demonstrate the concepts involved. - -Let's create a new namespace called limit-example: - -```shell -$ kubectl create namespace limit-example -namespace "limit-example" created -``` - -Note that `kubectl` commands will print the type and name of the resource created or mutated, which can then be used in subsequent commands: - -```shell -$ kubectl get namespaces -NAME STATUS AGE -default Active 51s -limit-example Active 45s -``` - -## Step 2: Apply a limit to the namespace - -Let's create a simple limit in our namespace. - -```shell -$ kubectl create -f docs/admin/limitrange/limits.yaml --namespace=limit-example -limitrange "mylimits" created -``` - -Let's describe the limits that we have imposed in our namespace. - -```shell -$ kubectl describe limits mylimits --namespace=limit-example -Name: mylimits -Namespace: limit-example -Type Resource Min Max Default Request Default Limit Max Limit/Request Ratio ----- -------- --- --- --------------- ------------- ----------------------- -Pod cpu 200m 2 - - - -Pod memory 6Mi 1Gi - - - -Container cpu 100m 2 200m 300m - -Container memory 3Mi 1Gi 100Mi 200Mi - -``` - -In this scenario, we have said the following: - -1. If a max constraint is specified for a resource (2 CPU and 1Gi memory in this case), then a limit -must be specified for that resource across all containers. Failure to specify a limit will result in -a validation error when attempting to create the pod. Note that a default value of limit is set by -*default* in file `limits.yaml` (300m CPU and 200Mi memory). -2. If a min constraint is specified for a resource (100m CPU and 3Mi memory in this case), then a -request must be specified for that resource across all containers. Failure to specify a request will -result in a validation error when attempting to create the pod. Note that a default value of request is -set by *defaultRequest* in file `limits.yaml` (200m CPU and 100Mi memory). -3. For any pod, the sum of all containers memory requests must be >= 6Mi and the sum of all containers -memory limits must be <= 1Gi; the sum of all containers CPU requests must be >= 200m and the sum of all -containers CPU limits must be <= 2. - -## Step 3: Enforcing limits at point of creation - -The limits enumerated in a namespace are only enforced when a pod is created or updated in -the cluster. If you change the limits to a different value range, it does not affect pods that -were previously created in a namespace. - -If a resource (cpu or memory) is being restricted by a limit, the user will get an error at time -of creation explaining why. - -Let's first spin up a [Deployment](/docs/user-guide/deployments) that creates a single container Pod to demonstrate -how default values are applied to each pod. - -```shell -$ kubectl run nginx --image=nginx --replicas=1 --namespace=limit-example -deployment "nginx" created -``` - -Note that `kubectl run` creates a Deployment named "nginx" on Kubernetes cluster >= v1.2. If you are running older versions, it creates replication controllers instead. -If you want to obtain the old behavior, use `--generator=run/v1` to create replication controllers. See [`kubectl run`](/docs/user-guide/kubectl/kubectl_run/) for more details. -The Deployment manages 1 replica of single container Pod. Let's take a look at the Pod it manages. First, find the name of the Pod: - -```shell -$ kubectl get pods --namespace=limit-example -NAME READY STATUS RESTARTS AGE -nginx-2040093540-s8vzu 1/1 Running 0 11s -``` - -Let's print this Pod with yaml output format (using `-o yaml` flag), and then `grep` the `resources` field. Note that your pod name will be different. - -``` shell -$ kubectl get pods nginx-2040093540-s8vzu --namespace=limit-example -o yaml | grep resources -C 8 - resourceVersion: "57" - selfLink: /api/v1/namespaces/limit-example/pods/nginx-2040093540-ivimu - uid: 67b20741-f53b-11e5-b066-64510658e388 -spec: - containers: - - image: nginx - imagePullPolicy: Always - name: nginx - resources: - limits: - cpu: 300m - memory: 200Mi - requests: - cpu: 200m - memory: 100Mi - terminationMessagePath: /dev/termination-log - volumeMounts: -``` - -Note that our nginx container has picked up the namespace default cpu and memory resource *limits* and *requests*. - -Let's create a pod that exceeds our allowed limits by having it have a container that requests 3 cpu cores. - -```shell -$ kubectl create -f docs/admin/limitrange/invalid-pod.yaml --namespace=limit-example -Error from server: error when creating "docs/admin/limitrange/invalid-pod.yaml": Pod "invalid-pod" is forbidden: [Maximum cpu usage per Pod is 2, but limit is 3., Maximum cpu usage per Container is 2, but limit is 3.] -``` - -Let's create a pod that falls within the allowed limit boundaries. - -```shell -$ kubectl create -f docs/admin/limitrange/valid-pod.yaml --namespace=limit-example -pod "valid-pod" created -``` - -Now look at the Pod's resources field: - -```shell -$ kubectl get pods valid-pod --namespace=limit-example -o yaml | grep -C 6 resources - uid: 3b1bfd7a-f53c-11e5-b066-64510658e388 -spec: - containers: - - image: gcr.io/google_containers/serve_hostname - imagePullPolicy: Always - name: kubernetes-serve-hostname - resources: - limits: - cpu: "1" - memory: 512Mi - requests: - cpu: "1" - memory: 512Mi -``` - -Note that this pod specifies explicit resource *limits* and *requests* so it did not pick up the namespace -default values. - -Note: The *limits* for CPU resource are enforced in the default Kubernetes setup on the physical node -that runs the container unless the administrator deploys the kubelet with the folllowing flag: - -```shell -$ kubelet --help -Usage of kubelet -.... - --cpu-cfs-quota[=true]: Enable CPU CFS quota enforcement for containers that specify CPU limits -$ kubelet --cpu-cfs-quota=false ... -``` - -## Step 4: Cleanup - -To remove the resources used by this example, you can just delete the limit-example namespace. - -```shell -$ kubectl delete namespace limit-example -namespace "limit-example" deleted -$ kubectl get namespaces -NAME STATUS AGE -default Active 12m -``` - -## Summary - -Cluster operators that want to restrict the amount of resources a single container or pod may consume -are able to define allowable ranges per Kubernetes namespace. In the absence of any explicit assignments, -the Kubernetes system is able to apply default resource *limits* and *requests* if desired in order to -constrain the amount of resource a pod consumes on a node. +--- +assignees: +- derekwaynecarr +- janetkuo + +--- + +By default, pods run with unbounded CPU and memory limits. This means that any pod in the +system will be able to consume as much CPU and memory on the node that executes the pod. + +Users may want to impose restrictions on the amount of resource a single pod in the system may consume +for a variety of reasons. + +For example: + +1. Each node in the cluster has 2GB of memory. The cluster operator does not want to accept pods +that require more than 2GB of memory since no node in the cluster can support the requirement. To prevent a +pod from being permanently unscheduled to a node, the operator instead chooses to reject pods that exceed 2GB +of memory as part of admission control. +2. A cluster is shared by two communities in an organization that runs production and development workloads +respectively. Production workloads may consume up to 8GB of memory, but development workloads may consume up +to 512MB of memory. The cluster operator creates a separate namespace for each workload, and applies limits to +each namespace. +3. Users may create a pod which consumes resources just below the capacity of a machine. The left over space +may be too small to be useful, but big enough for the waste to be costly over the entire cluster. As a result, +the cluster operator may want to set limits that a pod must consume at least 20% of the memory and cpu of their +average node size in order to provide for more uniform scheduling and to limit waste. + +This example demonstrates how limits can be applied to a Kubernetes [namespace](/docs/admin/namespaces/walkthrough/) to control +min/max resource limits per pod. In addition, this example demonstrates how you can +apply default resource limits to pods in the absence of an end-user specified value. + +See [LimitRange design doc](https://github.com/kubernetes/kubernetes/blob/{{page.githubbranch}}/docs/design/admission_control_limit_range.md) for more information. For a detailed description of the Kubernetes resource model, see [Resources](/docs/user-guide/compute-resources/) + +## Step 0: Prerequisites + +This example requires a running Kubernetes cluster. See the [Getting Started guides](/docs/getting-started-guides/) for how to get started. + +Change to the `` directory if you're not already there. + +## Step 1: Create a namespace + +This example will work in a custom namespace to demonstrate the concepts involved. + +Let's create a new namespace called limit-example: + +```shell +$ kubectl create namespace limit-example +namespace "limit-example" created +``` + +Note that `kubectl` commands will print the type and name of the resource created or mutated, which can then be used in subsequent commands: + +```shell +$ kubectl get namespaces +NAME STATUS AGE +default Active 51s +limit-example Active 45s +``` + +## Step 2: Apply a limit to the namespace + +Let's create a simple limit in our namespace. + +```shell +$ kubectl create -f docs/admin/limitrange/limits.yaml --namespace=limit-example +limitrange "mylimits" created +``` + +Let's describe the limits that we have imposed in our namespace. + +```shell +$ kubectl describe limits mylimits --namespace=limit-example +Name: mylimits +Namespace: limit-example +Type Resource Min Max Default Request Default Limit Max Limit/Request Ratio +---- -------- --- --- --------------- ------------- ----------------------- +Pod cpu 200m 2 - - - +Pod memory 6Mi 1Gi - - - +Container cpu 100m 2 200m 300m - +Container memory 3Mi 1Gi 100Mi 200Mi - +``` + +In this scenario, we have said the following: + +1. If a max constraint is specified for a resource (2 CPU and 1Gi memory in this case), then a limit +must be specified for that resource across all containers. Failure to specify a limit will result in +a validation error when attempting to create the pod. Note that a default value of limit is set by +*default* in file `limits.yaml` (300m CPU and 200Mi memory). +2. If a min constraint is specified for a resource (100m CPU and 3Mi memory in this case), then a +request must be specified for that resource across all containers. Failure to specify a request will +result in a validation error when attempting to create the pod. Note that a default value of request is +set by *defaultRequest* in file `limits.yaml` (200m CPU and 100Mi memory). +3. For any pod, the sum of all containers memory requests must be >= 6Mi and the sum of all containers +memory limits must be <= 1Gi; the sum of all containers CPU requests must be >= 200m and the sum of all +containers CPU limits must be <= 2. + +## Step 3: Enforcing limits at point of creation + +The limits enumerated in a namespace are only enforced when a pod is created or updated in +the cluster. If you change the limits to a different value range, it does not affect pods that +were previously created in a namespace. + +If a resource (cpu or memory) is being restricted by a limit, the user will get an error at time +of creation explaining why. + +Let's first spin up a [Deployment](/docs/user-guide/deployments) that creates a single container Pod to demonstrate +how default values are applied to each pod. + +```shell +$ kubectl run nginx --image=nginx --replicas=1 --namespace=limit-example +deployment "nginx" created +``` + +Note that `kubectl run` creates a Deployment named "nginx" on Kubernetes cluster >= v1.2. If you are running older versions, it creates replication controllers instead. +If you want to obtain the old behavior, use `--generator=run/v1` to create replication controllers. See [`kubectl run`](/docs/user-guide/kubectl/kubectl_run/) for more details. +The Deployment manages 1 replica of single container Pod. Let's take a look at the Pod it manages. First, find the name of the Pod: + +```shell +$ kubectl get pods --namespace=limit-example +NAME READY STATUS RESTARTS AGE +nginx-2040093540-s8vzu 1/1 Running 0 11s +``` + +Let's print this Pod with yaml output format (using `-o yaml` flag), and then `grep` the `resources` field. Note that your pod name will be different. + +```shell +$ kubectl get pods nginx-2040093540-s8vzu --namespace=limit-example -o yaml | grep resources -C 8 + resourceVersion: "57" + selfLink: /api/v1/namespaces/limit-example/pods/nginx-2040093540-ivimu + uid: 67b20741-f53b-11e5-b066-64510658e388 +spec: + containers: + - image: nginx + imagePullPolicy: Always + name: nginx + resources: + limits: + cpu: 300m + memory: 200Mi + requests: + cpu: 200m + memory: 100Mi + terminationMessagePath: /dev/termination-log + volumeMounts: +``` + +Note that our nginx container has picked up the namespace default cpu and memory resource *limits* and *requests*. + +Let's create a pod that exceeds our allowed limits by having it have a container that requests 3 cpu cores. + +```shell +$ kubectl create -f docs/admin/limitrange/invalid-pod.yaml --namespace=limit-example +Error from server: error when creating "docs/admin/limitrange/invalid-pod.yaml": Pod "invalid-pod" is forbidden: [Maximum cpu usage per Pod is 2, but limit is 3., Maximum cpu usage per Container is 2, but limit is 3.] +``` + +Let's create a pod that falls within the allowed limit boundaries. + +```shell +$ kubectl create -f docs/admin/limitrange/valid-pod.yaml --namespace=limit-example +pod "valid-pod" created +``` + +Now look at the Pod's resources field: + +```shell +$ kubectl get pods valid-pod --namespace=limit-example -o yaml | grep -C 6 resources + uid: 3b1bfd7a-f53c-11e5-b066-64510658e388 +spec: + containers: + - image: gcr.io/google_containers/serve_hostname + imagePullPolicy: Always + name: kubernetes-serve-hostname + resources: + limits: + cpu: "1" + memory: 512Mi + requests: + cpu: "1" + memory: 512Mi +``` + +Note that this pod specifies explicit resource *limits* and *requests* so it did not pick up the namespace +default values. + +Note: The *limits* for CPU resource are enforced in the default Kubernetes setup on the physical node +that runs the container unless the administrator deploys the kubelet with the folllowing flag: + +```shell +$ kubelet --help +Usage of kubelet +.... + --cpu-cfs-quota[=true]: Enable CPU CFS quota enforcement for containers that specify CPU limits +$ kubelet --cpu-cfs-quota=false ... +``` + +## Step 4: Cleanup + +To remove the resources used by this example, you can just delete the limit-example namespace. + +```shell +$ kubectl delete namespace limit-example +namespace "limit-example" deleted +$ kubectl get namespaces +NAME STATUS AGE +default Active 12m +``` + +## Summary + +Cluster operators that want to restrict the amount of resources a single container or pod may consume +are able to define allowable ranges per Kubernetes namespace. In the absence of any explicit assignments, +the Kubernetes system is able to apply default resource *limits* and *requests* if desired in order to +constrain the amount of resource a pod consumes on a node. diff --git a/docs/admin/salt.md b/docs/admin/salt.md index 2cb634d7c6..5d82b54d39 100644 --- a/docs/admin/salt.md +++ b/docs/admin/salt.md @@ -1,106 +1,106 @@ ---- -assignees: -- davidopp -- lavalamp - ---- - -The Kubernetes cluster can be configured using Salt. - -The Salt scripts are shared across multiple hosting providers, so it's important to understand some background information prior to making a modification to ensure your changes do not break hosting Kubernetes across multiple environments. Depending on where you host your Kubernetes cluster, you may be using different operating systems and different networking configurations. As a result, it's important to understand some background information before making Salt changes in order to minimize introducing failures for other hosting providers. - -## Salt cluster setup - -The **salt-master** service runs on the kubernetes-master [(except on the default GCE setup)](#standalone-salt-configuration-on-gce). - -The **salt-minion** service runs on the kubernetes-master and each kubernetes-node in the cluster. - -Each salt-minion service is configured to interact with the **salt-master** service hosted on the kubernetes-master via the **master.conf** file [(except on GCE)](#standalone-salt-configuration-on-gce). - -```shell -[root@kubernetes-master] $ cat /etc/salt/minion.d/master.conf -master: kubernetes-master -``` - -The salt-master is contacted by each salt-minion and depending upon the machine information presented, the salt-master will provision the machine as either a kubernetes-master or kubernetes-node with all the required capabilities needed to run Kubernetes. - -If you are running the Vagrant based environment, the **salt-api** service is running on the kubernetes-master. It is configured to enable the vagrant user to introspect the salt cluster in order to find out about machines in the Vagrant environment via a REST API. - -## Standalone Salt Configuration on GCE - -On GCE, the master and nodes are all configured as [standalone minions](http://docs.saltstack.com/en/latest/topics/tutorials/standalone_minion.html). The configuration for each VM is derived from the VM's [instance metadata](https://cloud.google.com/compute/docs/metadata) and then stored in Salt grains (`/etc/salt/minion.d/grains.conf`) and pillars (`/srv/salt-overlay/pillar/cluster-params.sls`) that local Salt uses to enforce state. - -All remaining sections that refer to master/minion setups should be ignored for GCE. One fallout of the GCE setup is that the Salt mine doesn't exist - there is no sharing of configuration amongst nodes. - -## Salt security - -*(Not applicable on default GCE setup.)* - -Security is not enabled on the salt-master, and the salt-master is configured to auto-accept incoming requests from minions. It is not recommended to use this security configuration in production environments without deeper study. (In some environments this isn't as bad as it might sound if the salt master port isn't externally accessible and you trust everyone on your network.) - -```shell -[root@kubernetes-master] $ cat /etc/salt/master.d/auto-accept.conf -open_mode: True -auto_accept: True -``` - -## Salt minion configuration - -Each minion in the salt cluster has an associated configuration that instructs the salt-master how to provision the required resources on the machine. - -An example file is presented below using the Vagrant based environment. - -```shell -[root@kubernetes-master] $ cat /etc/salt/minion.d/grains.conf -grains: - etcd_servers: $MASTER_IP - cloud: vagrant - roles: - - kubernetes-master -``` - -Each hosting environment has a slightly different grains.conf file that is used to build conditional logic where required in the Salt files. - -The following enumerates the set of defined key/value pairs that are supported today. If you add new ones, please make sure to update this list. - -Key | Value -------------- | ------------- -`api_servers` | (Optional) The IP address / host name where a kubelet can get read-only access to kube-apiserver -`cbr-cidr` | (Optional) The minion IP address range used for the docker container bridge. -`cloud` | (Optional) Which IaaS platform is used to host Kubernetes, *gce*, *azure*, *aws*, *vagrant* -`etcd_servers` | (Optional) Comma-delimited list of IP addresses the kube-apiserver and kubelet use to reach etcd. Uses the IP of the first machine in the kubernetes_master role, or 127.0.0.1 on GCE. -`hostnamef` | (Optional) The full host name of the machine, i.e. uname -n -`node_ip` | (Optional) The IP address to use to address this node -`hostname_override` | (Optional) Mapped to the kubelet hostname-override -`network_mode` | (Optional) Networking model to use among nodes: *openvswitch* -`networkInterfaceName` | (Optional) Networking interface to use to bind addresses, default value *eth0* -`publicAddressOverride` | (Optional) The IP address the kube-apiserver should use to bind against for external read-only access -`roles` | (Required) 1. `kubernetes-master` means this machine is the master in the Kubernetes cluster. 2. `kubernetes-pool` means this machine is a kubernetes-node. Depending on the role, the Salt scripts will provision different resources on the machine. - -These keys may be leveraged by the Salt sls files to branch behavior. - -In addition, a cluster may be running a Debian based operating system or Red Hat based operating system (Centos, Fedora, RHEL, etc.). As a result, it's important to sometimes distinguish behavior based on operating system using if branches like the following. - -```liquid -{% raw %} -{% if grains['os_family'] == 'RedHat' %} -// something specific to a RedHat environment (Centos, Fedora, RHEL) where you may use yum, systemd, etc. -{% else %} -// something specific to Debian environment (apt-get, initd) -{% endif %} -{% endraw %} -``` - -## Best Practices - -1. When configuring default arguments for processes, it's best to avoid the use of EnvironmentFiles (Systemd in Red Hat environments) or init.d files (Debian distributions) to hold default values that should be common across operating system environments. This helps keep our Salt template files easy to understand for editors who may not be familiar with the particulars of each distribution. - -## Future enhancements (Networking) - -Per pod IP configuration is provider-specific, so when making networking changes, it's important to sandbox these as all providers may not use the same mechanisms (iptables, openvswitch, etc.) - -We should define a grains.conf key that captures more specifically what network configuration environment is being used to avoid future confusion across providers. - -## Further reading - -The [cluster/saltbase](http://releases.k8s.io/{{page.githubbranch}}/cluster/saltbase/) tree has more details on the current SaltStack configuration. \ No newline at end of file +--- +assignees: +- davidopp +- lavalamp + +--- + +The Kubernetes cluster can be configured using Salt. + +The Salt scripts are shared across multiple hosting providers, so it's important to understand some background information prior to making a modification to ensure your changes do not break hosting Kubernetes across multiple environments. Depending on where you host your Kubernetes cluster, you may be using different operating systems and different networking configurations. As a result, it's important to understand some background information before making Salt changes in order to minimize introducing failures for other hosting providers. + +## Salt cluster setup + +The **salt-master** service runs on the kubernetes-master [(except on the default GCE setup)](#standalone-salt-configuration-on-gce). + +The **salt-minion** service runs on the kubernetes-master and each kubernetes-node in the cluster. + +Each salt-minion service is configured to interact with the **salt-master** service hosted on the kubernetes-master via the **master.conf** file [(except on GCE)](#standalone-salt-configuration-on-gce). + +```shell +[root@kubernetes-master] $ cat /etc/salt/minion.d/master.conf +master: kubernetes-master +``` + +The salt-master is contacted by each salt-minion and depending upon the machine information presented, the salt-master will provision the machine as either a kubernetes-master or kubernetes-node with all the required capabilities needed to run Kubernetes. + +If you are running the Vagrant based environment, the **salt-api** service is running on the kubernetes-master. It is configured to enable the vagrant user to introspect the salt cluster in order to find out about machines in the Vagrant environment via a REST API. + +## Standalone Salt Configuration on GCE + +On GCE, the master and nodes are all configured as [standalone minions](http://docs.saltstack.com/en/latest/topics/tutorials/standalone_minion.html). The configuration for each VM is derived from the VM's [instance metadata](https://cloud.google.com/compute/docs/metadata) and then stored in Salt grains (`/etc/salt/minion.d/grains.conf`) and pillars (`/srv/salt-overlay/pillar/cluster-params.sls`) that local Salt uses to enforce state. + +All remaining sections that refer to master/minion setups should be ignored for GCE. One fallout of the GCE setup is that the Salt mine doesn't exist - there is no sharing of configuration amongst nodes. + +## Salt security + +*(Not applicable on default GCE setup.)* + +Security is not enabled on the salt-master, and the salt-master is configured to auto-accept incoming requests from minions. It is not recommended to use this security configuration in production environments without deeper study. (In some environments this isn't as bad as it might sound if the salt master port isn't externally accessible and you trust everyone on your network.) + +```shell +[root@kubernetes-master] $ cat /etc/salt/master.d/auto-accept.conf +open_mode: True +auto_accept: True +``` + +## Salt minion configuration + +Each minion in the salt cluster has an associated configuration that instructs the salt-master how to provision the required resources on the machine. + +An example file is presented below using the Vagrant based environment. + +```shell +[root@kubernetes-master] $ cat /etc/salt/minion.d/grains.conf +grains: + etcd_servers: $MASTER_IP + cloud: vagrant + roles: + - kubernetes-master +``` + +Each hosting environment has a slightly different grains.conf file that is used to build conditional logic where required in the Salt files. + +The following enumerates the set of defined key/value pairs that are supported today. If you add new ones, please make sure to update this list. + +Key | Value +-----------------------------------|---------------------------------------------------------------- +`api_servers` | (Optional) The IP address / host name where a kubelet can get read-only access to kube-apiserver +`cbr-cidr` | (Optional) The minion IP address range used for the docker container bridge. +`cloud` | (Optional) Which IaaS platform is used to host Kubernetes, *gce*, *azure*, *aws*, *vagrant* +`etcd_servers` | (Optional) Comma-delimited list of IP addresses the kube-apiserver and kubelet use to reach etcd. Uses the IP of the first machine in the kubernetes_master role, or 127.0.0.1 on GCE. +`hostnamef` | (Optional) The full host name of the machine, i.e. uname -n +`node_ip` | (Optional) The IP address to use to address this node +`hostname_override` | (Optional) Mapped to the kubelet hostname-override +`network_mode` | (Optional) Networking model to use among nodes: *openvswitch* +`networkInterfaceName` | (Optional) Networking interface to use to bind addresses, default value *eth0* +`publicAddressOverride` | (Optional) The IP address the kube-apiserver should use to bind against for external read-only access +`roles` | (Required) 1. `kubernetes-master` means this machine is the master in the Kubernetes cluster. 2. `kubernetes-pool` means this machine is a kubernetes-node. Depending on the role, the Salt scripts will provision different resources on the machine. + +These keys may be leveraged by the Salt sls files to branch behavior. + +In addition, a cluster may be running a Debian based operating system or Red Hat based operating system (Centos, Fedora, RHEL, etc.). As a result, it's important to sometimes distinguish behavior based on operating system using if branches like the following. + +```liquid +{% raw %} +{% if grains['os_family'] == 'RedHat' %} +// something specific to a RedHat environment (Centos, Fedora, RHEL) where you may use yum, systemd, etc. +{% else %} +// something specific to Debian environment (apt-get, initd) +{% endif %} +{% endraw %} +``` + +## Best Practices + +1. When configuring default arguments for processes, it's best to avoid the use of EnvironmentFiles (Systemd in Red Hat environments) or init.d files (Debian distributions) to hold default values that should be common across operating system environments. This helps keep our Salt template files easy to understand for editors who may not be familiar with the particulars of each distribution. + +## Future enhancements (Networking) + +Per pod IP configuration is provider-specific, so when making networking changes, it's important to sandbox these as all providers may not use the same mechanisms (iptables, openvswitch, etc.) + +We should define a grains.conf key that captures more specifically what network configuration environment is being used to avoid future confusion across providers. + +## Further reading + +The [cluster/saltbase](http://releases.k8s.io/{{page.githubbranch}}/cluster/saltbase/) tree has more details on the current SaltStack configuration. diff --git a/docs/getting-started-guides/centos/centos_manual_config.md b/docs/getting-started-guides/centos/centos_manual_config.md index d2d12e9e15..f794f485a4 100644 --- a/docs/getting-started-guides/centos/centos_manual_config.md +++ b/docs/getting-started-guides/centos/centos_manual_config.md @@ -1,182 +1,182 @@ ---- -assignees: -- lavalamp -- thockin - ---- - -* TOC -{:toc} - -## Prerequisites - -You need two machines with CentOS installed on them. - -## Starting a cluster - -This is a getting started guide for CentOS. It is a manual configuration so you understand all the underlying packages / services / ports, etc... - -This guide will only get ONE node working. Multiple nodes requires a functional [networking configuration](/docs/admin/networking) done outside of kubernetes. Although the additional Kubernetes configuration requirements should be obvious. - -The Kubernetes package provides a few services: kube-apiserver, kube-scheduler, kube-controller-manager, kubelet, kube-proxy. These services are managed by systemd and the configuration resides in a central location: /etc/kubernetes. We will break the services up between the hosts. The first host, centos-master, will be the Kubernetes master. This host will run the kube-apiserver, kube-controller-manager, and kube-scheduler. In addition, the master will also run _etcd_. The remaining host, centos-minion will be the node and run kubelet, proxy, cadvisor and docker. - -**System Information:** - -Hosts: - -Please replace host IP with your environment. - -```conf -centos-master = 192.168.121.9 -centos-minion = 192.168.121.65 -``` - -**Prepare the hosts:** - -* Create a /etc/yum.repos.d/virt7-docker-common-release.repo on all hosts - centos-{master,minion} with following information. - -```conf -[virt7-docker-common-release] -name=virt7-docker-common-release -baseurl=http://cbs.centos.org/repos/virt7-docker-common-release/x86_64/os/ -gpgcheck=0 -``` - -* Install Kubernetes and etcd on all hosts - centos-{master,minion}. This will also pull in docker and cadvisor. - -```shell -yum -y install --enablerepo=virt7-docker-common-release kubernetes etcd -``` - -* Add master and node to /etc/hosts on all machines (not needed if hostnames already in DNS) - -```shell -echo "192.168.121.9 centos-master -192.168.121.65 centos-minion" >> /etc/hosts -``` - -* Edit /etc/kubernetes/config which will be the same on all hosts to contain: - -```shell -# Comma separated list of nodes in the etcd cluster -KUBE_ETCD_SERVERS="--etcd-servers=http://centos-master:2379" - -# logging to stderr means we get it in the systemd journal -KUBE_LOGTOSTDERR="--logtostderr=true" - -# journal message level, 0 is debug -KUBE_LOG_LEVEL="--v=0" - -# Should this cluster be allowed to run privileged docker containers -KUBE_ALLOW_PRIV="--allow-privileged=false" - -# How the replication controller and scheduler find the kube-apiserver -KUBE_MASTER="--master=http://centos-master:8080" -``` - -* Disable the firewall on both the master and node, as docker does not play well with other firewall rule managers - -```shell -systemctl disable iptables-services firewalld -systemctl stop iptables-services firewalld -``` - -**Configure the Kubernetes services on the master.** - -* Edit /etc/etcd/etcd.conf to appear as such: - -```shell -# [member] -ETCD_NAME=default -ETCD_DATA_DIR="/var/lib/etcd/default.etcd" -ETCD_LISTEN_CLIENT_URLS="http://0.0.0.0:2379" - -#[cluster] -ETCD_ADVERTISE_CLIENT_URLS="http://0.0.0.0:2379" -``` - -* Edit /etc/kubernetes/apiserver to appear as such: - -```shell -# The address on the local server to listen to. -KUBE_API_ADDRESS="--address=0.0.0.0" - -# The port on the local server to listen on. -KUBE_API_PORT="--port=8080" - -# Port kubelets listen on -KUBELET_PORT="--kubelet-port=10250" - -# Address range to use for services -KUBE_SERVICE_ADDRESSES="--service-cluster-ip-range=10.254.0.0/16" - -# Add your own! -KUBE_API_ARGS="" -``` - -* Start the appropriate services on master: - -```shell -for SERVICES in etcd kube-apiserver kube-controller-manager kube-scheduler; do - systemctl restart $SERVICES - systemctl enable $SERVICES - systemctl status $SERVICES -done -``` - -**Configure the Kubernetes services on the node.** - -***We need to configure the kubelet and start the kubelet and proxy*** - -* Edit /etc/kubernetes/kubelet to appear as such: - -```shell -# The address for the info server to serve on -KUBELET_ADDRESS="--address=0.0.0.0" - -# The port for the info server to serve on -KUBELET_PORT="--port=10250" - -# You may leave this blank to use the actual hostname -KUBELET_HOSTNAME="--hostname-override=centos-minion" - -# Location of the api-server -KUBELET_API_SERVER="--api-servers=http://centos-master:8080" - -# Add your own! -KUBELET_ARGS="" -``` - -* Start the appropriate services on node (centos-minion). - -```shell -for SERVICES in kube-proxy kubelet docker; do - systemctl restart $SERVICES - systemctl enable $SERVICES - systemctl status $SERVICES -done -``` - -*You should be finished!* - -* Check to make sure the cluster can see the node (on centos-master) - -```shell -$ kubectl get nodes -NAME LABELS STATUS -centos-minion Ready -``` - -**The cluster should be running! Launch a test pod.** - -You should have a functional cluster, check out [101](/docs/user-guide/walkthrough/)! - -## Support Level - - -IaaS Provider | Config. Mgmt | OS | Networking | Docs | Conforms | Support Level --------------------- | ------------ | ------ | ---------- | --------------------------------------------- | ---------| ---------------------------- -Bare-metal | custom | CentOS | _none_ | [docs](/docs/getting-started-guides/centos/centos_manual_config) | | Community ([@coolsvap](https://github.com/coolsvap)) - -For support level information on all solutions, see the [Table of solutions](/docs/getting-started-guides/#table-of-solutions) chart. - +--- +assignees: +- lavalamp +- thockin + +--- + +* TOC +{:toc} + +## Prerequisites + +You need two machines with CentOS installed on them. + +## Starting a cluster + +This is a getting started guide for CentOS. It is a manual configuration so you understand all the underlying packages / services / ports, etc... + +This guide will only get ONE node working. Multiple nodes requires a functional [networking configuration](/docs/admin/networking) done outside of kubernetes. Although the additional Kubernetes configuration requirements should be obvious. + +The Kubernetes package provides a few services: kube-apiserver, kube-scheduler, kube-controller-manager, kubelet, kube-proxy. These services are managed by systemd and the configuration resides in a central location: /etc/kubernetes. We will break the services up between the hosts. The first host, centos-master, will be the Kubernetes master. This host will run the kube-apiserver, kube-controller-manager, and kube-scheduler. In addition, the master will also run _etcd_. The remaining host, centos-minion will be the node and run kubelet, proxy, cadvisor and docker. + +**System Information:** + +Hosts: + +Please replace host IP with your environment. + +```conf +centos-master = 192.168.121.9 +centos-minion = 192.168.121.65 +``` + +**Prepare the hosts:** + +* Create a /etc/yum.repos.d/virt7-docker-common-release.repo on all hosts - centos-{master,minion} with following information. + +```conf +[virt7-docker-common-release] +name=virt7-docker-common-release +baseurl=http://cbs.centos.org/repos/virt7-docker-common-release/x86_64/os/ +gpgcheck=0 +``` + +* Install Kubernetes and etcd on all hosts - centos-{master,minion}. This will also pull in docker and cadvisor. + +```shell +yum -y install --enablerepo=virt7-docker-common-release kubernetes etcd +``` + +* Add master and node to /etc/hosts on all machines (not needed if hostnames already in DNS) + +```shell +echo "192.168.121.9 centos-master +192.168.121.65 centos-minion" >> /etc/hosts +``` + +* Edit /etc/kubernetes/config which will be the same on all hosts to contain: + +```shell +# Comma separated list of nodes in the etcd cluster +KUBE_ETCD_SERVERS="--etcd-servers=http://centos-master:2379" + +# logging to stderr means we get it in the systemd journal +KUBE_LOGTOSTDERR="--logtostderr=true" + +# journal message level, 0 is debug +KUBE_LOG_LEVEL="--v=0" + +# Should this cluster be allowed to run privileged docker containers +KUBE_ALLOW_PRIV="--allow-privileged=false" + +# How the replication controller and scheduler find the kube-apiserver +KUBE_MASTER="--master=http://centos-master:8080" +``` + +* Disable the firewall on both the master and node, as docker does not play well with other firewall rule managers + +```shell +systemctl disable iptables-services firewalld +systemctl stop iptables-services firewalld +``` + +**Configure the Kubernetes services on the master.** + +* Edit /etc/etcd/etcd.conf to appear as such: + +```shell +# [member] +ETCD_NAME=default +ETCD_DATA_DIR="/var/lib/etcd/default.etcd" +ETCD_LISTEN_CLIENT_URLS="http://0.0.0.0:2379" + +#[cluster] +ETCD_ADVERTISE_CLIENT_URLS="http://0.0.0.0:2379" +``` + +* Edit /etc/kubernetes/apiserver to appear as such: + +```shell +# The address on the local server to listen to. +KUBE_API_ADDRESS="--address=0.0.0.0" + +# The port on the local server to listen on. +KUBE_API_PORT="--port=8080" + +# Port kubelets listen on +KUBELET_PORT="--kubelet-port=10250" + +# Address range to use for services +KUBE_SERVICE_ADDRESSES="--service-cluster-ip-range=10.254.0.0/16" + +# Add your own! +KUBE_API_ARGS="" +``` + +* Start the appropriate services on master: + +```shell +for SERVICES in etcd kube-apiserver kube-controller-manager kube-scheduler; do + systemctl restart $SERVICES + systemctl enable $SERVICES + systemctl status $SERVICES +done +``` + +**Configure the Kubernetes services on the node.** + +***We need to configure the kubelet and start the kubelet and proxy*** + +* Edit /etc/kubernetes/kubelet to appear as such: + +```shell +# The address for the info server to serve on +KUBELET_ADDRESS="--address=0.0.0.0" + +# The port for the info server to serve on +KUBELET_PORT="--port=10250" + +# You may leave this blank to use the actual hostname +KUBELET_HOSTNAME="--hostname-override=centos-minion" + +# Location of the api-server +KUBELET_API_SERVER="--api-servers=http://centos-master:8080" + +# Add your own! +KUBELET_ARGS="" +``` + +* Start the appropriate services on node (centos-minion). + +```shell +for SERVICES in kube-proxy kubelet docker; do + systemctl restart $SERVICES + systemctl enable $SERVICES + systemctl status $SERVICES +done +``` + +*You should be finished!* + +* Check to make sure the cluster can see the node (on centos-master) + +```shell +$ kubectl get nodes +NAME LABELS STATUS +centos-minion Ready +``` + +**The cluster should be running! Launch a test pod.** + +You should have a functional cluster, check out [101](/docs/user-guide/walkthrough/)! + +## Support Level + + +IaaS Provider | Config. Mgmt | OS | Networking | Docs | Conforms | Support Level +-------------------- | ------------ | ------ | ---------- | --------------------------------------------- | ---------| ---------------------------- +Bare-metal | custom | CentOS | _none_ | [docs](/docs/getting-started-guides/centos/centos_manual_config) | | Community ([@coolsvap](https://github.com/coolsvap)) + +For support level information on all solutions, see the [Table of solutions](/docs/getting-started-guides/#table-of-solutions) chart. + diff --git a/docs/getting-started-guides/coreos/bare_metal_calico.md b/docs/getting-started-guides/coreos/bare_metal_calico.md index 9cbdd89b17..7c3f7ccca0 100644 --- a/docs/getting-started-guides/coreos/bare_metal_calico.md +++ b/docs/getting-started-guides/coreos/bare_metal_calico.md @@ -1,209 +1,209 @@ ---- - ---- - -This document describes how to deploy Kubernetes with Calico networking on _bare metal_ CoreOS. For more information on Project Calico, visit [projectcalico.org](http://projectcalico.org) and the [calico-containers repository](https://github.com/projectcalico/calico-containers). - -To install Calico on an existing Kubernetes cluster, or for more information on deploying Calico with Kubernetes in a number of other environments take a look at our supported [deployment guides](https://github.com/projectcalico/calico-containers/tree/master/docs/cni/kubernetes). - -Specifically, this guide will have you do the following: - -- Deploy a Kubernetes master node on CoreOS using cloud-config. -- Deploy two Kubernetes compute nodes with Calico Networking using cloud-config. -- Configure `kubectl` to access your cluster. - -The resulting cluster will use SSL between Kubernetes components. It will run the SkyDNS service and kube-ui, and be fully conformant with the Kubernetes v1.1 conformance tests. - -## Prerequisites and Assumptions - -- At least three bare-metal machines (or VMs) to work with. This guide will configure them as follows: - - 1 Kubernetes Master - - 2 Kubernetes Nodes -- Your nodes should have IP connectivity to each other and the internet. -- This guide assumes a DHCP server on your network to assign server IPs. -- This guide uses `192.168.0.0/16` as the subnet from which pod IP addresses are assigned. If this overlaps with your host subnet, you will need to configure Calico to use a different [IP pool](https://github.com/projectcalico/calico-containers/blob/master/docs/calicoctl/pool.md#calicoctl-pool-commands). - -## Cloud-config - -This guide will use [cloud-config](https://coreos.com/docs/cluster-management/setup/cloudinit-cloud-config/) to configure each of the nodes in our Kubernetes cluster. - -We'll use two cloud-config files: -- `master-config.yaml`: cloud-config for the Kubernetes master -- `node-config.yaml`: cloud-config for each Kubernetes node - -## Download CoreOS - -Download the stable CoreOS bootable ISO from the [CoreOS website](https://coreos.com/docs/running-coreos/platforms/iso/). - -## Configure the Kubernetes Master - -1. Once you've downloaded the ISO image, burn the ISO to a CD/DVD/USB key and boot from it (if using a virtual machine you can boot directly from the ISO). Once booted, you should be automatically logged in as the `core` user at the terminal. At this point CoreOS is running from the ISO and it hasn't been installed yet. - -2. *On another machine*, download the [master cloud-config template](https://raw.githubusercontent.com/projectcalico/calico-cni/k8s-1.1-docs/samples/kubernetes/cloud-config/master-config-template.yaml) and save it as `master-config.yaml`. - -3. Replace the following variables in the `master-config.yaml` file. - - - ``: The public key you will use for SSH access to this server. See [generating ssh keys](https://help.github.com/articles/generating-ssh-keys/) - -4. Copy the edited `master-config.yaml` to your Kubernetes master machine (using a USB stick, for example). - -5. The CoreOS bootable ISO comes with a tool called `coreos-install` which will allow us to install CoreOS and configure the machine using a cloud-config file. The following command will download and install stable CoreOS using the `master-config.yaml` file we just created for configuration. Run this on the Kubernetes master. - - > **Warning:** this is a destructive operation that erases disk `sda` on your server. - - ```shell - sudo coreos-install -d /dev/sda -C stable -c master-config.yaml - ``` - -6. Once complete, restart the server and boot from `/dev/sda` (you may need to remove the ISO image). When it comes back up, you should have SSH access as the `core` user using the public key provided in the `master-config.yaml` file. - -### Configure TLS - -The master requires the CA certificate, `ca.pem`; its own certificate, `apiserver.pem` and its private key, `apiserver-key.pem`. This [CoreOS guide](https://coreos.com/kubernetes/docs/latest/openssl.html) explains how to generate these. - -1. Generate the necessary certificates for the master. This [guide for generating Kubernetes TLS Assets](https://coreos.com/kubernetes/docs/latest/openssl.html) explains how to use OpenSSL to generate the required assets. - -2. Send the three files to your master host (using `scp` for example). - -3. Move them to the `/etc/kubernetes/ssl` folder and ensure that only the root user can read the key: - - ```shell - # Move keys - sudo mkdir -p /etc/kubernetes/ssl/ - sudo mv -t /etc/kubernetes/ssl/ ca.pem apiserver.pem apiserver-key.pem - - # Set Permissions - sudo chmod 600 /etc/kubernetes/ssl/apiserver-key.pem - sudo chown root:root /etc/kubernetes/ssl/apiserver-key.pem - ``` - -4. Restart the kubelet to pick up the changes: - - ```shell - sudo systemctl restart kubelet - ``` - -## Configure the compute nodes - -The following steps will set up a single Kubernetes node for use as a compute host. Run these steps to deploy each Kubernetes node in your cluster. - -1. Boot up the node machine using the bootable ISO we downloaded earlier. You should be automatically logged in as the `core` user. - -2. Make a copy of the [node cloud-config template](https://raw.githubusercontent.com/projectcalico/calico-cni/k8s-1.1-docs/samples/kubernetes/cloud-config/node-config-template.yaml) for this machine. - -3. Replace the following placeholders in the `node-config.yaml` file to match your deployment. - - - ``: Hostname for this node (e.g. kube-node1, kube-node2) - - ``: The public key you will use for SSH access to this server. - - ``: The IPv4 address of the Kubernetes master. - -4. Replace the following placeholders with the contents of their respective files. - - - ``: Complete contents of `ca.pem` - - ``: Complete contents of `ca-key.pem` - - > **Important:** in a production deployment, embedding the secret key in cloud-config is a bad idea! In production you should use an appropriate secret manager. - - > **Important:** Make sure you indent the entire file to match the indentation of the placeholder. For example: - > - > ```shell - > - path: /etc/kubernetes/ssl/ca.pem - > owner: core - > permissions: 0644 - > content: | - > - > ``` - > - > should look like this once the certificate is in place: - > - > ```shell - > - path: /etc/kubernetes/ssl/ca.pem - > owner: core - > permissions: 0644 - > content: | - > -----BEGIN CERTIFICATE----- - > MIIC9zCCAd+gAwIBAgIJAJMnVnhVhy5pMA0GCSqGSIb3DQEBCwUAMBIxEDAOBgNV - > ...... - > QHwi1rNc8eBLNrd4BM/A1ZeDVh/Q9KxN+ZG/hHIXhmWKgN5wQx6/81FIFg== - > -----END CERTIFICATE----- - > ``` - -5. Move the modified `node-config.yaml` to your Kubernetes node machine and install and configure CoreOS on the node using the following command. - - > **Warning:** this is a destructive operation that erases disk `sda` on your server. - - ```shell - sudo coreos-install -d /dev/sda -C stable -c node-config.yaml - ``` - -6. Once complete, restart the server and boot into `/dev/sda`. When it comes back up, you should have SSH access as the `core` user using the public key provided in the `node-config.yaml` file. It will take some time for the node to be fully configured. - -## Configure Kubeconfig - -To administer your cluster from a separate host, you will need the client and admin certificates generated earlier (`ca.pem`, `admin.pem`, `admin-key.pem`). With certificates in place, run the following commands with the appropriate filepaths. - -```shell -kubectl config set-cluster calico-cluster --server=https:// --certificate-authority= -kubectl config set-credentials calico-admin --certificate-authority= --client-key= --client-certificate= -kubectl config set-context calico --cluster=calico-cluster --user=calico-admin -kubectl config use-context calico -``` - -Check your work with `kubectl get nodes`. - -## Install the DNS Addon - -Most Kubernetes deployments will require the DNS addon for service discovery. To install DNS, create the skydns service and replication controller provided. - -```shell -kubectl create -f https://raw.githubusercontent.com/projectcalico/calico-cni/k8s-1.1-docs/samples/kubernetes/master/dns/skydns.yaml -``` - -## Install the Kubernetes UI Addon (Optional) - -The Kubernetes UI can be installed using `kubectl` to run the following manifest file. - -```shell -kubectl create -f https://raw.githubusercontent.com/projectcalico/calico-cni/k8s-1.1-docs/samples/kubernetes/master/kube-ui/kube-ui.yaml -``` - -## Launch other Services With Calico-Kubernetes - -At this point, you have a fully functioning cluster running on Kubernetes with a master and two nodes networked with Calico. You can now follow any of the [standard documentation](https://github.com/kubernetes/kubernetes/tree/{{page.version}}.0/examples/) to set up other services on your cluster. - -## Connectivity to outside the cluster - -Because containers in this guide have private `192.168.0.0/16` IPs, you will need NAT to allow connectivity between containers and the internet. However, in a production data center deployment, NAT is not always necessary, since Calico can peer with the data center's border routers over BGP. - -### NAT on the nodes - -The simplest method for enabling connectivity from containers to the internet is to use outgoing NAT on your Kubernetes nodes. - -Calico can provide outgoing NAT for containers. To enable it, use the following `calicoctl` command: - -```shell -ETCD_AUTHORITY= calicoctl pool add --nat-outgoing -``` - -By default, `` will be `192.168.0.0/16`. You can find out which pools have been configured with the following command: - -```shell -ETCD_AUTHORITY= calicoctl pool show -``` - -### NAT at the border router - -In a data center environment, it is recommended to configure Calico to peer with the border routers over BGP. This means that the container IPs will be routable anywhere in the data center, and so NAT is not needed on the nodes (though it may be enabled at the data center edge to allow outbound-only internet connectivity). - -The Calico documentation contains more information on how to configure Calico to [peer with existing infrastructure](https://github.com/projectcalico/calico-containers/blob/master/docs/ExternalConnectivity.md). - -## Support Level - - -IaaS Provider | Config. Mgmt | OS | Networking | Docs | Conforms | Support Level --------------------- | ------------ | ------ | ---------- | --------------------------------------------- | ---------| ---------------------------- -Bare-metal | CoreOS | CoreOS | Calico | [docs](/docs/getting-started-guides/coreos/bare_metal_calico) | | Community ([@caseydavenport](https://github.com/caseydavenport)) - - -For support level information on all solutions, see the [Table of solutions](/docs/getting-started-guides/#table-of-solutions) chart. - +--- + +--- + +This document describes how to deploy Kubernetes with Calico networking on _bare metal_ CoreOS. For more information on Project Calico, visit [projectcalico.org](http://projectcalico.org) and the [calico-containers repository](https://github.com/projectcalico/calico-containers). + +To install Calico on an existing Kubernetes cluster, or for more information on deploying Calico with Kubernetes in a number of other environments take a look at our supported [deployment guides](https://github.com/projectcalico/calico-containers/tree/master/docs/cni/kubernetes). + +Specifically, this guide will have you do the following: + +- Deploy a Kubernetes master node on CoreOS using cloud-config. +- Deploy two Kubernetes compute nodes with Calico Networking using cloud-config. +- Configure `kubectl` to access your cluster. + +The resulting cluster will use SSL between Kubernetes components. It will run the SkyDNS service and kube-ui, and be fully conformant with the Kubernetes v1.1 conformance tests. + +## Prerequisites and Assumptions + +- At least three bare-metal machines (or VMs) to work with. This guide will configure them as follows: + - 1 Kubernetes Master + - 2 Kubernetes Nodes +- Your nodes should have IP connectivity to each other and the internet. +- This guide assumes a DHCP server on your network to assign server IPs. +- This guide uses `192.168.0.0/16` as the subnet from which pod IP addresses are assigned. If this overlaps with your host subnet, you will need to configure Calico to use a different [IP pool](https://github.com/projectcalico/calico-containers/blob/master/docs/calicoctl/pool.md#calicoctl-pool-commands). + +## Cloud-config + +This guide will use [cloud-config](https://coreos.com/docs/cluster-management/setup/cloudinit-cloud-config/) to configure each of the nodes in our Kubernetes cluster. + +We'll use two cloud-config files: +- `master-config.yaml`: cloud-config for the Kubernetes master +- `node-config.yaml`: cloud-config for each Kubernetes node + +## Download CoreOS + +Download the stable CoreOS bootable ISO from the [CoreOS website](https://coreos.com/docs/running-coreos/platforms/iso/). + +## Configure the Kubernetes Master + +1. Once you've downloaded the ISO image, burn the ISO to a CD/DVD/USB key and boot from it (if using a virtual machine you can boot directly from the ISO). Once booted, you should be automatically logged in as the `core` user at the terminal. At this point CoreOS is running from the ISO and it hasn't been installed yet. + +2. *On another machine*, download the [master cloud-config template](https://raw.githubusercontent.com/projectcalico/calico-cni/k8s-1.1-docs/samples/kubernetes/cloud-config/master-config-template.yaml) and save it as `master-config.yaml`. + +3. Replace the following variables in the `master-config.yaml` file. + + - ``: The public key you will use for SSH access to this server. See [generating ssh keys](https://help.github.com/articles/generating-ssh-keys/) + +4. Copy the edited `master-config.yaml` to your Kubernetes master machine (using a USB stick, for example). + +5. The CoreOS bootable ISO comes with a tool called `coreos-install` which will allow us to install CoreOS and configure the machine using a cloud-config file. The following command will download and install stable CoreOS using the `master-config.yaml` file we just created for configuration. Run this on the Kubernetes master. + + > **Warning:** this is a destructive operation that erases disk `sda` on your server. + + ```shell + sudo coreos-install -d /dev/sda -C stable -c master-config.yaml + ``` + +6. Once complete, restart the server and boot from `/dev/sda` (you may need to remove the ISO image). When it comes back up, you should have SSH access as the `core` user using the public key provided in the `master-config.yaml` file. + +### Configure TLS + +The master requires the CA certificate, `ca.pem`; its own certificate, `apiserver.pem` and its private key, `apiserver-key.pem`. This [CoreOS guide](https://coreos.com/kubernetes/docs/latest/openssl.html) explains how to generate these. + +1. Generate the necessary certificates for the master. This [guide for generating Kubernetes TLS Assets](https://coreos.com/kubernetes/docs/latest/openssl.html) explains how to use OpenSSL to generate the required assets. + +2. Send the three files to your master host (using `scp` for example). + +3. Move them to the `/etc/kubernetes/ssl` folder and ensure that only the root user can read the key: + + ```shell + # Move keys + sudo mkdir -p /etc/kubernetes/ssl/ + sudo mv -t /etc/kubernetes/ssl/ ca.pem apiserver.pem apiserver-key.pem + + # Set Permissions + sudo chmod 600 /etc/kubernetes/ssl/apiserver-key.pem + sudo chown root:root /etc/kubernetes/ssl/apiserver-key.pem + ``` + +4. Restart the kubelet to pick up the changes: + + ```shell + sudo systemctl restart kubelet + ``` + +## Configure the compute nodes + +The following steps will set up a single Kubernetes node for use as a compute host. Run these steps to deploy each Kubernetes node in your cluster. + +1. Boot up the node machine using the bootable ISO we downloaded earlier. You should be automatically logged in as the `core` user. + +2. Make a copy of the [node cloud-config template](https://raw.githubusercontent.com/projectcalico/calico-cni/k8s-1.1-docs/samples/kubernetes/cloud-config/node-config-template.yaml) for this machine. + +3. Replace the following placeholders in the `node-config.yaml` file to match your deployment. + + - ``: Hostname for this node (e.g. kube-node1, kube-node2) + - ``: The public key you will use for SSH access to this server. + - ``: The IPv4 address of the Kubernetes master. + +4. Replace the following placeholders with the contents of their respective files. + + - ``: Complete contents of `ca.pem` + - ``: Complete contents of `ca-key.pem` + + > **Important:** in a production deployment, embedding the secret key in cloud-config is a bad idea! In production you should use an appropriate secret manager. + + > **Important:** Make sure you indent the entire file to match the indentation of the placeholder. For example: + > + > ```shell + > - path: /etc/kubernetes/ssl/ca.pem + > owner: core + > permissions: 0644 + > content: | + > + > ``` + > + > should look like this once the certificate is in place: + > + > ```shell + > - path: /etc/kubernetes/ssl/ca.pem + > owner: core + > permissions: 0644 + > content: | + > -----BEGIN CERTIFICATE----- + > MIIC9zCCAd+gAwIBAgIJAJMnVnhVhy5pMA0GCSqGSIb3DQEBCwUAMBIxEDAOBgNV + > ...... + > QHwi1rNc8eBLNrd4BM/A1ZeDVh/Q9KxN+ZG/hHIXhmWKgN5wQx6/81FIFg== + > -----END CERTIFICATE----- + > ``` + +5. Move the modified `node-config.yaml` to your Kubernetes node machine and install and configure CoreOS on the node using the following command. + + > **Warning:** this is a destructive operation that erases disk `sda` on your server. + + ```shell + sudo coreos-install -d /dev/sda -C stable -c node-config.yaml + ``` + +6. Once complete, restart the server and boot into `/dev/sda`. When it comes back up, you should have SSH access as the `core` user using the public key provided in the `node-config.yaml` file. It will take some time for the node to be fully configured. + +## Configure Kubeconfig + +To administer your cluster from a separate host, you will need the client and admin certificates generated earlier (`ca.pem`, `admin.pem`, `admin-key.pem`). With certificates in place, run the following commands with the appropriate filepaths. + +```shell +kubectl config set-cluster calico-cluster --server=https:// --certificate-authority= +kubectl config set-credentials calico-admin --certificate-authority= --client-key= --client-certificate= +kubectl config set-context calico --cluster=calico-cluster --user=calico-admin +kubectl config use-context calico +``` + +Check your work with `kubectl get nodes`. + +## Install the DNS Addon + +Most Kubernetes deployments will require the DNS addon for service discovery. To install DNS, create the skydns service and replication controller provided. + +```shell +kubectl create -f https://raw.githubusercontent.com/projectcalico/calico-cni/k8s-1.1-docs/samples/kubernetes/master/dns/skydns.yaml +``` + +## Install the Kubernetes UI Addon (Optional) + +The Kubernetes UI can be installed using `kubectl` to run the following manifest file. + +```shell +kubectl create -f https://raw.githubusercontent.com/projectcalico/calico-cni/k8s-1.1-docs/samples/kubernetes/master/kube-ui/kube-ui.yaml +``` + +## Launch other Services With Calico-Kubernetes + +At this point, you have a fully functioning cluster running on Kubernetes with a master and two nodes networked with Calico. You can now follow any of the [standard documentation](https://github.com/kubernetes/kubernetes/tree/{{page.version}}.0/examples/) to set up other services on your cluster. + +## Connectivity to outside the cluster + +Because containers in this guide have private `192.168.0.0/16` IPs, you will need NAT to allow connectivity between containers and the internet. However, in a production data center deployment, NAT is not always necessary, since Calico can peer with the data center's border routers over BGP. + +### NAT on the nodes + +The simplest method for enabling connectivity from containers to the internet is to use outgoing NAT on your Kubernetes nodes. + +Calico can provide outgoing NAT for containers. To enable it, use the following `calicoctl` command: + +```shell +ETCD_AUTHORITY= calicoctl pool add --nat-outgoing +``` + +By default, `` will be `192.168.0.0/16`. You can find out which pools have been configured with the following command: + +```shell +ETCD_AUTHORITY= calicoctl pool show +``` + +### NAT at the border router + +In a data center environment, it is recommended to configure Calico to peer with the border routers over BGP. This means that the container IPs will be routable anywhere in the data center, and so NAT is not needed on the nodes (though it may be enabled at the data center edge to allow outbound-only internet connectivity). + +The Calico documentation contains more information on how to configure Calico to [peer with existing infrastructure](https://github.com/projectcalico/calico-containers/blob/master/docs/ExternalConnectivity.md). + +## Support Level + + +IaaS Provider | Config. Mgmt | OS | Networking | Docs | Conforms | Support Level +-------------------- | ------------ | ------ | ---------- | --------------------------------------------- | ---------| ---------------------------- +Bare-metal | CoreOS | CoreOS | Calico | [docs](/docs/getting-started-guides/coreos/bare_metal_calico) | | Community ([@caseydavenport](https://github.com/caseydavenport)) + + +For support level information on all solutions, see the [Table of solutions](/docs/getting-started-guides/#table-of-solutions) chart. + diff --git a/docs/getting-started-guides/fedora/fedora_ansible_config.md b/docs/getting-started-guides/fedora/fedora_ansible_config.md index aa439f07b0..b5fe3802e0 100644 --- a/docs/getting-started-guides/fedora/fedora_ansible_config.md +++ b/docs/getting-started-guides/fedora/fedora_ansible_config.md @@ -1,241 +1,241 @@ ---- -assignees: -- aveshagarwal -- erictune - ---- - -Configuring Kubernetes on Fedora via Ansible offers a simple way to quickly create a clustered environment with little effort. - -* TOC -{:toc} - -## Prerequisites - -1. Host able to run ansible and able to clone the following repo: [kubernetes](https://github.com/kubernetes/kubernetes.git) -2. A Fedora 21+ host to act as cluster master -3. As many Fedora 21+ hosts as you would like, that act as cluster nodes - -The hosts can be virtual or bare metal. Ansible will take care of the rest of the configuration for you - configuring networking, installing packages, handling the firewall, etc. This example will use one master and two nodes. - -## Architecture of the cluster - -A Kubernetes cluster requires etcd, a master, and n nodes, so we will create a cluster with three hosts, for example: - -```shell -master,etcd = kube-master.example.com - node1 = kube-node-01.example.com - node2 = kube-node-02.example.com -``` - -**Make sure your local machine has** - - - ansible (must be 1.9.0+) - - git - - python-netaddr - -If not - -```shell -yum install -y ansible git python-netaddr -``` - -**Now clone down the Kubernetes repository** - -```shell -git clone https://github.com/kubernetes/contrib.git -cd contrib/ansible -``` - -**Tell ansible about each machine and its role in your cluster** - -Get the IP addresses from the master and nodes. Add those to the `~/contrib/ansible/inventory` file on the host running Ansible. - -```shell -[masters] -kube-master.example.com - -[etcd] -kube-master.example.com - -[nodes] -kube-node-01.example.com -kube-node-02.example.com -``` - -## Setting up ansible access to your nodes - -If you already are running on a machine which has passwordless ssh access to the kube-master and kube-node-{01,02} nodes, and 'sudo' privileges, simply set the value of `ansible_ssh_user` in `~/contrib/ansible/group_vars/all.yml` to the username which you use to ssh to the nodes (i.e. `fedora`), and proceed to the next step... - -*Otherwise* setup ssh on the machines like so (you will need to know the root password to all machines in the cluster). - -edit: ~/contrib/ansible/group_vars/all.yml - -```yaml -ansible_ssh_user: root -``` - -**Configuring ssh access to the cluster** - -If you already have ssh access to every machine using ssh public keys you may skip to [setting up the cluster](#setting-up-the-cluster) - -Make sure your local machine (root) has an ssh key pair if not - -```shell -ssh-keygen -``` - -Copy the ssh public key to **all** nodes in the cluster - -```shell -for node in kube-master.example.com kube-node-01.example.com kube-node-02.example.com; do - ssh-copy-id ${node} -done -``` - -## Setting up the cluster - -Although the default value of variables in `~/contrib/ansible/group_vars/all.yml` should be good enough, if not, change them as needed. - -```conf -edit: ~/contrib/ansible/group_vars/all.yml -``` - -**Configure access to kubernetes packages** - -Modify `source_type` as below to access kubernetes packages through the package manager. - -```yaml -source_type: packageManager -``` - -**Configure the IP addresses used for services** - -Each Kubernetes service gets its own IP address. These are not real IPs. You need only select a range of IPs which are not in use elsewhere in your environment. - -```yaml -kube_service_addresses: 10.254.0.0/16 -``` - -**Managing flannel** - -Modify `flannel_subnet`, `flannel_prefix` and `flannel_host_prefix` only if defaults are not appropriate for your cluster. - - -**Managing add on services in your cluster** - -Set `cluster_logging` to false or true (default) to disable or enable logging with elasticsearch. - -```yaml -cluster_logging: true -``` - -Turn `cluster_monitoring` to true (default) or false to enable or disable cluster monitoring with heapster and influxdb. - -```yaml -cluster_monitoring: true -``` - -Turn `dns_setup` to true (recommended) or false to enable or disable whole DNS configuration. - -```yaml -dns_setup: true -``` - -**Tell ansible to get to work!** - -This will finally setup your whole Kubernetes cluster for you. - -```shell -cd ~/contrib/ansible/ - -./setup.sh -``` - -## Testing and using your new cluster - -That's all there is to it. It's really that easy. At this point you should have a functioning Kubernetes cluster. - -**Show kubernetes nodes** - -Run the following on the kube-master: - -```shell -kubectl get nodes -``` - -**Show services running on masters and nodes** - -```shell -systemctl | grep -i kube -``` - -**Show firewall rules on the masters and nodes** - -```shell -iptables -nvL - -``` - -**Create /tmp/apache.json on the master with the following contents and deploy pod** - -```json -{ - "kind": "Pod", - "apiVersion": "v1", - "metadata": { - "name": "fedoraapache", - "labels": { - "name": "fedoraapache" - } - }, - "spec": { - "containers": [ - { - "name": "fedoraapache", - "image": "fedora/apache", - "ports": [ - { - "hostPort": 80, - "containerPort": 80 - } - ] - } - ] - } -} -``` - -```shell -kubectl create -f /tmp/apache.json -``` - -**Check where the pod was created** - -```shell -kubectl get pods -``` - -**Check Docker status on nodes** - -```shell -docker ps -docker images -``` - -**After the pod is 'Running' Check web server access on the node** - -```shell -curl http://localhost -``` - -That's it ! - -## Support Level - - -IaaS Provider | Config. Mgmt | OS | Networking | Docs | Conforms | Support Level --------------------- | ------------ | ------ | ---------- | --------------------------------------------- | ---------| ---------------------------- -Bare-metal | Ansible | Fedora | flannel | [docs](/docs/getting-started-guides/fedora/fedora_ansible_config) | | Project - -For support level information on all solutions, see the [Table of solutions](/docs/getting-started-guides/#table-of-solutions) chart. +--- +assignees: +- aveshagarwal +- erictune + +--- + +Configuring Kubernetes on Fedora via Ansible offers a simple way to quickly create a clustered environment with little effort. + +* TOC +{:toc} + +## Prerequisites + +1. Host able to run ansible and able to clone the following repo: [kubernetes](https://github.com/kubernetes/kubernetes.git) +2. A Fedora 21+ host to act as cluster master +3. As many Fedora 21+ hosts as you would like, that act as cluster nodes + +The hosts can be virtual or bare metal. Ansible will take care of the rest of the configuration for you - configuring networking, installing packages, handling the firewall, etc. This example will use one master and two nodes. + +## Architecture of the cluster + +A Kubernetes cluster requires etcd, a master, and n nodes, so we will create a cluster with three hosts, for example: + +```shell +master,etcd = kube-master.example.com + node1 = kube-node-01.example.com + node2 = kube-node-02.example.com +``` + +**Make sure your local machine has** + + - ansible (must be 1.9.0+) + - git + - python-netaddr + +If not + +```shell +yum install -y ansible git python-netaddr +``` + +**Now clone down the Kubernetes repository** + +```shell +git clone https://github.com/kubernetes/contrib.git +cd contrib/ansible +``` + +**Tell ansible about each machine and its role in your cluster** + +Get the IP addresses from the master and nodes. Add those to the `~/contrib/ansible/inventory` file on the host running Ansible. + +```shell +[masters] +kube-master.example.com + +[etcd] +kube-master.example.com + +[nodes] +kube-node-01.example.com +kube-node-02.example.com +``` + +## Setting up ansible access to your nodes + +If you already are running on a machine which has passwordless ssh access to the kube-master and kube-node-{01,02} nodes, and 'sudo' privileges, simply set the value of `ansible_ssh_user` in `~/contrib/ansible/group_vars/all.yml` to the username which you use to ssh to the nodes (i.e. `fedora`), and proceed to the next step... + +*Otherwise* setup ssh on the machines like so (you will need to know the root password to all machines in the cluster). + +edit: ~/contrib/ansible/group_vars/all.yml + +```yaml +ansible_ssh_user: root +``` + +**Configuring ssh access to the cluster** + +If you already have ssh access to every machine using ssh public keys you may skip to [setting up the cluster](#setting-up-the-cluster) + +Make sure your local machine (root) has an ssh key pair if not + +```shell +ssh-keygen +``` + +Copy the ssh public key to **all** nodes in the cluster + +```shell +for node in kube-master.example.com kube-node-01.example.com kube-node-02.example.com; do + ssh-copy-id ${node} +done +``` + +## Setting up the cluster + +Although the default value of variables in `~/contrib/ansible/group_vars/all.yml` should be good enough, if not, change them as needed. + +```conf +edit: ~/contrib/ansible/group_vars/all.yml +``` + +**Configure access to kubernetes packages** + +Modify `source_type` as below to access kubernetes packages through the package manager. + +```yaml +source_type: packageManager +``` + +**Configure the IP addresses used for services** + +Each Kubernetes service gets its own IP address. These are not real IPs. You need only select a range of IPs which are not in use elsewhere in your environment. + +```yaml +kube_service_addresses: 10.254.0.0/16 +``` + +**Managing flannel** + +Modify `flannel_subnet`, `flannel_prefix` and `flannel_host_prefix` only if defaults are not appropriate for your cluster. + + +**Managing add on services in your cluster** + +Set `cluster_logging` to false or true (default) to disable or enable logging with elasticsearch. + +```yaml +cluster_logging: true +``` + +Turn `cluster_monitoring` to true (default) or false to enable or disable cluster monitoring with heapster and influxdb. + +```yaml +cluster_monitoring: true +``` + +Turn `dns_setup` to true (recommended) or false to enable or disable whole DNS configuration. + +```yaml +dns_setup: true +``` + +**Tell ansible to get to work!** + +This will finally setup your whole Kubernetes cluster for you. + +```shell +cd ~/contrib/ansible/ + +./setup.sh +``` + +## Testing and using your new cluster + +That's all there is to it. It's really that easy. At this point you should have a functioning Kubernetes cluster. + +**Show kubernetes nodes** + +Run the following on the kube-master: + +```shell +kubectl get nodes +``` + +**Show services running on masters and nodes** + +```shell +systemctl | grep -i kube +``` + +**Show firewall rules on the masters and nodes** + +```shell +iptables -nvL + +``` + +**Create /tmp/apache.json on the master with the following contents and deploy pod** + +```json +{ + "kind": "Pod", + "apiVersion": "v1", + "metadata": { + "name": "fedoraapache", + "labels": { + "name": "fedoraapache" + } + }, + "spec": { + "containers": [ + { + "name": "fedoraapache", + "image": "fedora/apache", + "ports": [ + { + "hostPort": 80, + "containerPort": 80 + } + ] + } + ] + } +} +``` + +```shell +kubectl create -f /tmp/apache.json +``` + +**Check where the pod was created** + +```shell +kubectl get pods +``` + +**Check Docker status on nodes** + +```shell +docker ps +docker images +``` + +**After the pod is 'Running' Check web server access on the node** + +```shell +curl http://localhost +``` + +That's it ! + +## Support Level + + +IaaS Provider | Config. Mgmt | OS | Networking | Docs | Conforms | Support Level +-------------------- | ------------ | ------ | ---------- | --------------------------------------------- | ---------| ---------------------------- +Bare-metal | Ansible | Fedora | flannel | [docs](/docs/getting-started-guides/fedora/fedora_ansible_config) | | Project + +For support level information on all solutions, see the [Table of solutions](/docs/getting-started-guides/#table-of-solutions) chart. diff --git a/docs/getting-started-guides/fedora/fedora_manual_config.md b/docs/getting-started-guides/fedora/fedora_manual_config.md index 238498d18c..d1948530a8 100644 --- a/docs/getting-started-guides/fedora/fedora_manual_config.md +++ b/docs/getting-started-guides/fedora/fedora_manual_config.md @@ -1,219 +1,219 @@ ---- -assignees: -- aveshagarwal -- eparis -- thockin - ---- - -* TOC -{:toc} - -## Prerequisites - -1. You need 2 or more machines with Fedora installed. - -## Instructions - -This is a getting started guide for Fedora. It is a manual configuration so you understand all the underlying packages / services / ports, etc... - -This guide will only get ONE node (previously minion) working. Multiple nodes require a functional [networking configuration](/docs/admin/networking/) done outside of Kubernetes. Although the additional Kubernetes configuration requirements should be obvious. - -The Kubernetes package provides a few services: kube-apiserver, kube-scheduler, kube-controller-manager, kubelet, kube-proxy. These services are managed by systemd and the configuration resides in a central location: /etc/kubernetes. We will break the services up between the hosts. The first host, fed-master, will be the Kubernetes master. This host will run the kube-apiserver, kube-controller-manager, and kube-scheduler. In addition, the master will also run _etcd_ (not needed if _etcd_ runs on a different host but this guide assumes that _etcd_ and Kubernetes master run on the same host). The remaining host, fed-node will be the node and run kubelet, proxy and docker. - -**System Information:** - -Hosts: - -```conf -fed-master = 192.168.121.9 -fed-node = 192.168.121.65 -``` - -**Prepare the hosts:** - -* Install Kubernetes on all hosts - fed-{master,node}. This will also pull in docker. Also install etcd on fed-master. This guide has been tested with kubernetes-0.18 and beyond. -* The [--enablerepo=updates-testing](https://fedoraproject.org/wiki/QA:Updates_Testing) directive in the yum command below will ensure that the most recent Kubernetes version that is scheduled for pre-release will be installed. This should be a more recent version than the Fedora "stable" release for Kubernetes that you would get without adding the directive. -* If you want the very latest Kubernetes release [you can download and yum install the RPM directly from Fedora Koji](http://koji.fedoraproject.org/koji/packageinfo?packageID=19202) instead of using the yum install command below. -* Running on AWS EC2 with RHEL 7.2, you need to enable "extras" repository for yum by editing `/etc/yum.repos.d/redhat-rhui.repo` and changing the changing the `enable=0` to `enable=1` for extras. - -```shell -yum -y install --enablerepo=updates-testing kubernetes -``` - -* Install etcd and iptables - -```shell -yum -y install etcd iptables -``` - -* Add master and node to /etc/hosts on all machines (not needed if hostnames already in DNS). Make sure that communication works between fed-master and fed-node by using a utility such as ping. - -```shell -echo "192.168.121.9 fed-master -192.168.121.65 fed-node" >> /etc/hosts -``` - -* Edit /etc/kubernetes/config which will be the same on all hosts (master and node) to contain: - -```shell -# Comma separated list of nodes in the etcd cluster -KUBE_MASTER="--master=http://fed-master:8080" - -# logging to stderr means we get it in the systemd journal -KUBE_LOGTOSTDERR="--logtostderr=true" - -# journal message level, 0 is debug -KUBE_LOG_LEVEL="--v=0" - -# Should this cluster be allowed to run privileged docker containers -KUBE_ALLOW_PRIV="--allow-privileged=false" -``` - -* Disable the firewall on both the master and node, as docker does not play well with other firewall rule managers. Please note that iptables-services does not exist on default fedora server install. - -```shell -systemctl disable iptables-services firewalld -systemctl stop iptables-services firewalld -``` - -**Configure the Kubernetes services on the master.** - -* Edit /etc/kubernetes/apiserver to appear as such. The service-cluster-ip-range IP addresses must be an unused block of addresses, not used anywhere else. They do not need to be routed or assigned to anything. - -```shell -# The address on the local server to listen to. -KUBE_API_ADDRESS="--address=0.0.0.0" - -# Comma separated list of nodes in the etcd cluster -KUBE_ETCD_SERVERS="--etcd-servers=http://127.0.0.1:4001" - -# Address range to use for services -KUBE_SERVICE_ADDRESSES="--service-cluster-ip-range=10.254.0.0/16" - -# Add your own! -KUBE_API_ARGS="" -``` - -* Edit /etc/etcd/etcd.conf,let the etcd to listen all the ip instead of 127.0.0.1, if not, you will get the error like "connection refused". Note that Fedora 22 uses etcd 2.0, One of the changes in etcd 2.0 is that now uses port 2379 and 2380 (as opposed to etcd 0.46 which userd 4001 and 7001). - -```shell -ETCD_LISTEN_CLIENT_URLS="http://0.0.0.0:4001" -``` - -* Create /var/run/kubernetes on master: - -```shell -mkdir /var/run/kubernetes -chown kube:kube /var/run/kubernetes -chmod 750 /var/run/kubernetes -``` - -* Start the appropriate services on master: - -```shell -for SERVICES in etcd kube-apiserver kube-controller-manager kube-scheduler; do - systemctl restart $SERVICES - systemctl enable $SERVICES - systemctl status $SERVICES -done -``` - -* Addition of nodes: - -* Create following node.json file on Kubernetes master node: - -```json -{ - "apiVersion": "v1", - "kind": "Node", - "metadata": { - "name": "fed-node", - "labels":{ "name": "fed-node-label"} - }, - "spec": { - "externalID": "fed-node" - } -} -``` - -Now create a node object internally in your Kubernetes cluster by running: - -```shell -$ kubectl create -f ./node.json - -$ kubectl get nodes -NAME LABELS STATUS -fed-node name=fed-node-label Unknown -``` - -Please note that in the above, it only creates a representation for the node -_fed-node_ internally. It does not provision the actual _fed-node_. Also, it -is assumed that _fed-node_ (as specified in `name`) can be resolved and is -reachable from Kubernetes master node. This guide will discuss how to provision -a Kubernetes node (fed-node) below. - -**Configure the Kubernetes services on the node.** - -***We need to configure the kubelet on the node.*** - -* Edit /etc/kubernetes/kubelet to appear as such: - -```shell -### -# Kubernetes kubelet (node) config - -# The address for the info server to serve on (set to 0.0.0.0 or "" for all interfaces) -KUBELET_ADDRESS="--address=0.0.0.0" - -# You may leave this blank to use the actual hostname -KUBELET_HOSTNAME="--hostname-override=fed-node" - -# location of the api-server -KUBELET_API_SERVER="--api-servers=http://fed-master:8080" - -# Add your own! -#KUBELET_ARGS="" -``` - -* Start the appropriate services on the node (fed-node). - -```shell -for SERVICES in kube-proxy kubelet docker; do - systemctl restart $SERVICES - systemctl enable $SERVICES - systemctl status $SERVICES -done -``` - -* Check to make sure now the cluster can see the fed-node on fed-master, and its status changes to _Ready_. - -```shell -kubectl get nodes -NAME LABELS STATUS -fed-node name=fed-node-label Ready -``` - -* Deletion of nodes: - -To delete _fed-node_ from your Kubernetes cluster, one should run the following on fed-master (Please do not do it, it is just for information): - -```shell -kubectl delete -f ./node.json -``` - -*You should be finished!* - -**The cluster should be running! Launch a test pod.** - -You should have a functional cluster, check out [101](/docs/user-guide/walkthrough/)! - -## Support Level - - -IaaS Provider | Config. Mgmt | OS | Networking | Docs | Conforms | Support Level --------------------- | ------------ | ------ | ---------- | --------------------------------------------- | ---------| ---------------------------- -Bare-metal | custom | Fedora | _none_ | [docs](/docs/getting-started-guides/fedora/fedora_manual_config) | | Project - -For support level information on all solutions, see the [Table of solutions](/docs/getting-started-guides/#table-of-solutions) chart. - +--- +assignees: +- aveshagarwal +- eparis +- thockin + +--- + +* TOC +{:toc} + +## Prerequisites + +1. You need 2 or more machines with Fedora installed. + +## Instructions + +This is a getting started guide for Fedora. It is a manual configuration so you understand all the underlying packages / services / ports, etc... + +This guide will only get ONE node (previously minion) working. Multiple nodes require a functional [networking configuration](/docs/admin/networking/) done outside of Kubernetes. Although the additional Kubernetes configuration requirements should be obvious. + +The Kubernetes package provides a few services: kube-apiserver, kube-scheduler, kube-controller-manager, kubelet, kube-proxy. These services are managed by systemd and the configuration resides in a central location: /etc/kubernetes. We will break the services up between the hosts. The first host, fed-master, will be the Kubernetes master. This host will run the kube-apiserver, kube-controller-manager, and kube-scheduler. In addition, the master will also run _etcd_ (not needed if _etcd_ runs on a different host but this guide assumes that _etcd_ and Kubernetes master run on the same host). The remaining host, fed-node will be the node and run kubelet, proxy and docker. + +**System Information:** + +Hosts: + +```conf +fed-master = 192.168.121.9 +fed-node = 192.168.121.65 +``` + +**Prepare the hosts:** + +* Install Kubernetes on all hosts - fed-{master,node}. This will also pull in docker. Also install etcd on fed-master. This guide has been tested with kubernetes-0.18 and beyond. +* The [--enablerepo=updates-testing](https://fedoraproject.org/wiki/QA:Updates_Testing) directive in the yum command below will ensure that the most recent Kubernetes version that is scheduled for pre-release will be installed. This should be a more recent version than the Fedora "stable" release for Kubernetes that you would get without adding the directive. +* If you want the very latest Kubernetes release [you can download and yum install the RPM directly from Fedora Koji](http://koji.fedoraproject.org/koji/packageinfo?packageID=19202) instead of using the yum install command below. +* Running on AWS EC2 with RHEL 7.2, you need to enable "extras" repository for yum by editing `/etc/yum.repos.d/redhat-rhui.repo` and changing the changing the `enable=0` to `enable=1` for extras. + +```shell +yum -y install --enablerepo=updates-testing kubernetes +``` + +* Install etcd and iptables + +```shell +yum -y install etcd iptables +``` + +* Add master and node to /etc/hosts on all machines (not needed if hostnames already in DNS). Make sure that communication works between fed-master and fed-node by using a utility such as ping. + +```shell +echo "192.168.121.9 fed-master +192.168.121.65 fed-node" >> /etc/hosts +``` + +* Edit /etc/kubernetes/config which will be the same on all hosts (master and node) to contain: + +```shell +# Comma separated list of nodes in the etcd cluster +KUBE_MASTER="--master=http://fed-master:8080" + +# logging to stderr means we get it in the systemd journal +KUBE_LOGTOSTDERR="--logtostderr=true" + +# journal message level, 0 is debug +KUBE_LOG_LEVEL="--v=0" + +# Should this cluster be allowed to run privileged docker containers +KUBE_ALLOW_PRIV="--allow-privileged=false" +``` + +* Disable the firewall on both the master and node, as docker does not play well with other firewall rule managers. Please note that iptables-services does not exist on default fedora server install. + +```shell +systemctl disable iptables-services firewalld +systemctl stop iptables-services firewalld +``` + +**Configure the Kubernetes services on the master.** + +* Edit /etc/kubernetes/apiserver to appear as such. The service-cluster-ip-range IP addresses must be an unused block of addresses, not used anywhere else. They do not need to be routed or assigned to anything. + +```shell +# The address on the local server to listen to. +KUBE_API_ADDRESS="--address=0.0.0.0" + +# Comma separated list of nodes in the etcd cluster +KUBE_ETCD_SERVERS="--etcd-servers=http://127.0.0.1:4001" + +# Address range to use for services +KUBE_SERVICE_ADDRESSES="--service-cluster-ip-range=10.254.0.0/16" + +# Add your own! +KUBE_API_ARGS="" +``` + +* Edit /etc/etcd/etcd.conf,let the etcd to listen all the ip instead of 127.0.0.1, if not, you will get the error like "connection refused". Note that Fedora 22 uses etcd 2.0, One of the changes in etcd 2.0 is that now uses port 2379 and 2380 (as opposed to etcd 0.46 which userd 4001 and 7001). + +```shell +ETCD_LISTEN_CLIENT_URLS="http://0.0.0.0:4001" +``` + +* Create /var/run/kubernetes on master: + +```shell +mkdir /var/run/kubernetes +chown kube:kube /var/run/kubernetes +chmod 750 /var/run/kubernetes +``` + +* Start the appropriate services on master: + +```shell +for SERVICES in etcd kube-apiserver kube-controller-manager kube-scheduler; do + systemctl restart $SERVICES + systemctl enable $SERVICES + systemctl status $SERVICES +done +``` + +* Addition of nodes: + +* Create following node.json file on Kubernetes master node: + +```json +{ + "apiVersion": "v1", + "kind": "Node", + "metadata": { + "name": "fed-node", + "labels":{ "name": "fed-node-label"} + }, + "spec": { + "externalID": "fed-node" + } +} +``` + +Now create a node object internally in your Kubernetes cluster by running: + +```shell +$ kubectl create -f ./node.json + +$ kubectl get nodes +NAME LABELS STATUS +fed-node name=fed-node-label Unknown +``` + +Please note that in the above, it only creates a representation for the node +_fed-node_ internally. It does not provision the actual _fed-node_. Also, it +is assumed that _fed-node_ (as specified in `name`) can be resolved and is +reachable from Kubernetes master node. This guide will discuss how to provision +a Kubernetes node (fed-node) below. + +**Configure the Kubernetes services on the node.** + +***We need to configure the kubelet on the node.*** + +* Edit /etc/kubernetes/kubelet to appear as such: + +```shell +### +# Kubernetes kubelet (node) config + +# The address for the info server to serve on (set to 0.0.0.0 or "" for all interfaces) +KUBELET_ADDRESS="--address=0.0.0.0" + +# You may leave this blank to use the actual hostname +KUBELET_HOSTNAME="--hostname-override=fed-node" + +# location of the api-server +KUBELET_API_SERVER="--api-servers=http://fed-master:8080" + +# Add your own! +#KUBELET_ARGS="" +``` + +* Start the appropriate services on the node (fed-node). + +```shell +for SERVICES in kube-proxy kubelet docker; do + systemctl restart $SERVICES + systemctl enable $SERVICES + systemctl status $SERVICES +done +``` + +* Check to make sure now the cluster can see the fed-node on fed-master, and its status changes to _Ready_. + +```shell +kubectl get nodes +NAME LABELS STATUS +fed-node name=fed-node-label Ready +``` + +* Deletion of nodes: + +To delete _fed-node_ from your Kubernetes cluster, one should run the following on fed-master (Please do not do it, it is just for information): + +```shell +kubectl delete -f ./node.json +``` + +*You should be finished!* + +**The cluster should be running! Launch a test pod.** + +You should have a functional cluster, check out [101](/docs/user-guide/walkthrough/)! + +## Support Level + + +IaaS Provider | Config. Mgmt | OS | Networking | Docs | Conforms | Support Level +-------------------- | ------------ | ------ | ---------- | --------------------------------------------- | ---------| ---------------------------- +Bare-metal | custom | Fedora | _none_ | [docs](/docs/getting-started-guides/fedora/fedora_manual_config) | | Project + +For support level information on all solutions, see the [Table of solutions](/docs/getting-started-guides/#table-of-solutions) chart. + diff --git a/docs/getting-started-guides/fedora/flannel_multi_node_cluster.md b/docs/getting-started-guides/fedora/flannel_multi_node_cluster.md index 7f4504f2c9..bcd10f57b9 100644 --- a/docs/getting-started-guides/fedora/flannel_multi_node_cluster.md +++ b/docs/getting-started-guides/fedora/flannel_multi_node_cluster.md @@ -1,191 +1,191 @@ ---- -assignees: -- dchen1107 -- erictune -- thockin - ---- -* TOC -{:toc} - -This document describes how to deploy Kubernetes on multiple hosts to set up a multi-node cluster and networking with flannel. Follow fedora [getting started guide](/docs/getting-started-guides/fedora/fedora_manual_config/) to setup 1 master (fed-master) and 2 or more nodes. Make sure that all nodes have different names (fed-node1, fed-node2 and so on) and labels (fed-node1-label, fed-node2-label, and so on) to avoid any conflict. Also make sure that the Kubernetes master host is running etcd, kube-controller-manager, kube-scheduler, and kube-apiserver services, and the nodes are running docker, kube-proxy and kubelet services. Now install flannel on Kubernetes nodes. flannel on each node configures an overlay network that docker uses. flannel runs on each node to setup a unique class-C container network. - -## Prerequisites - -You need 2 or more machines with Fedora installed. - -## Master Setup - -**Perform following commands on the Kubernetes master** - -* Configure flannel by creating a `flannel-config.json` in your current directory on fed-master. Flannel provides udp and vxlan among other overlay networking backend options. In this guide, we choose kernel based vxlan backend. The contents of the json are: - -```json -{ - "Network": "18.16.0.0/16", - "SubnetLen": 24, - "Backend": { - "Type": "vxlan", - "VNI": 1 - } -} -``` - -**NOTE:** Choose an IP range that is *NOT* part of the public IP address range. - -Add the configuration to the etcd server on fed-master. - -```shell -etcdctl set /coreos.com/network/config < flannel-config.json -``` - -* Verify the key exists in the etcd server on fed-master. - -```shell -etcdctl get /coreos.com/network/config -``` - -## Node Setup - -**Perform following commands on all Kubernetes nodes** - -Edit the flannel configuration file /etc/sysconfig/flanneld as follows: - -```shell -# Flanneld configuration options - -# etcd url location. Point this to the server where etcd runs -FLANNEL_ETCD="http://fed-master:4001" - -# etcd config key. This is the configuration key that flannel queries -# For address range assignment -FLANNEL_ETCD_KEY="/coreos.com/network" - -# Any additional options that you want to pass -FLANNEL_OPTIONS="" -``` - -**Note:** By default, flannel uses the interface for the default route. If you have multiple interfaces and would like to use an interface other than the default route one, you could add "-iface=" to FLANNEL_OPTIONS. For additional options, run `flanneld --help` on command line. - -Enable the flannel service. - -```shell -systemctl enable flanneld -``` - -If docker is not running, then starting flannel service is enough and skip the next step. - -```shell -systemctl start flanneld -``` - -If docker is already running, then stop docker, delete docker bridge (docker0), start flanneld and restart docker as follows. Another alternative is to just reboot the system (`systemctl reboot`). - -```shell -systemctl stop docker -ip link delete docker0 -systemctl start flanneld -systemctl start docker -``` - - -## **Test the cluster and flannel configuration** - -Now check the interfaces on the nodes. Notice there is now a flannel.1 interface, and the ip addresses of docker0 and flannel.1 interfaces are in the same network. You will notice that docker0 is assigned a subnet (18.16.29.0/24 as shown below) on each Kubernetes node out of the IP range configured above. A working output should look like this: - -```shell -# ip -4 a|grep inet - inet 127.0.0.1/8 scope host lo - inet 192.168.122.77/24 brd 192.168.122.255 scope global dynamic eth0 - inet 18.16.29.0/16 scope global flannel.1 - inet 18.16.29.1/24 scope global docker0 -``` - -From any node in the cluster, check the cluster members by issuing a query to etcd server via curl (only partial output is shown using `grep -E "\{|\}|key|value"`). If you set up a 1 master and 3 nodes cluster, you should see one block for each node showing the subnets they have been assigned. You can associate those subnets to each node by the MAC address (VtepMAC) and IP address (Public IP) that is listed in the output. - -```shell -curl -s http://fed-master:4001/v2/keys/coreos.com/network/subnets | python -mjson.tool -``` - -```json -{ - "node": { - "key": "/coreos.com/network/subnets", - { - "key": "/coreos.com/network/subnets/18.16.29.0-24", - "value": "{\"PublicIP\":\"192.168.122.77\",\"BackendType\":\"vxlan\",\"BackendData\":{\"VtepMAC\":\"46:f1:d0:18:d0:65\"}}" - }, - { - "key": "/coreos.com/network/subnets/18.16.83.0-24", - "value": "{\"PublicIP\":\"192.168.122.36\",\"BackendType\":\"vxlan\",\"BackendData\":{\"VtepMAC\":\"ca:38:78:fc:72:29\"}}" - }, - { - "key": "/coreos.com/network/subnets/18.16.90.0-24", - "value": "{\"PublicIP\":\"192.168.122.127\",\"BackendType\":\"vxlan\",\"BackendData\":{\"VtepMAC\":\"92:e2:80:ba:2d:4d\"}}" - } - } -} -``` - -From all nodes, review the `/run/flannel/subnet.env` file. This file was generated automatically by flannel. - -```shell -# cat /run/flannel/subnet.env -FLANNEL_SUBNET=18.16.29.1/24 -FLANNEL_MTU=1450 -FLANNEL_IPMASQ=false -``` - -At this point, we have etcd running on the Kubernetes master, and flannel / docker running on Kubernetes nodes. Next steps are for testing cross-host container communication which will confirm that docker and flannel are configured properly. - -Issue the following commands on any 2 nodes: - -```shell -# docker run -it fedora:latest bash -bash-4.3# -``` - -This will place you inside the container. Install iproute and iputils packages to install ip and ping utilities. Due to a [bug](https://bugzilla.redhat.com/show_bug.cgi?id=1142311), it is required to modify capabilities of ping binary to work around "Operation not permitted" error. - -```shell -bash-4.3# yum -y install iproute iputils -bash-4.3# setcap cap_net_raw-ep /usr/bin/ping -``` - -Now note the IP address on the first node: - -```shell -bash-4.3# ip -4 a l eth0 | grep inet - inet 18.16.29.4/24 scope global eth0 -``` - -And also note the IP address on the other node: - -```shell -bash-4.3# ip a l eth0 | grep inet - inet 18.16.90.4/24 scope global eth0 -``` -Now ping from the first node to the other node: - -```shell -bash-4.3# ping 18.16.90.4 -PING 18.16.90.4 (18.16.90.4) 56(84) bytes of data. -64 bytes from 18.16.90.4: icmp_seq=1 ttl=62 time=0.275 ms -64 bytes from 18.16.90.4: icmp_seq=2 ttl=62 time=0.372 ms -``` - -Now Kubernetes multi-node cluster is set up with overlay networking set up by flannel. - -## Support Level - - -IaaS Provider | Config. Mgmt | OS | Networking | Docs | Conforms | Support Level --------------------- | ------------ | ------ | ---------- | --------------------------------------------- | ---------| ---------------------------- -Bare-metal | custom | Fedora | flannel | [docs](/docs/getting-started-guides/fedora/flannel_multi_node_cluster) | | Community ([@aveshagarwal](https://github.com/aveshagarwal)) -libvirt | custom | Fedora | flannel | [docs](/docs/getting-started-guides/fedora/flannel_multi_node_cluster) | | Community ([@aveshagarwal](https://github.com/aveshagarwal)) -KVM | custom | Fedora | flannel | [docs](/docs/getting-started-guides/fedora/flannel_multi_node_cluster) | | Community ([@aveshagarwal](https://github.com/aveshagarwal)) - - - -For support level information on all solutions, see the [Table of solutions](/docs/getting-started-guides/#table-of-solutions) chart. - +--- +assignees: +- dchen1107 +- erictune +- thockin + +--- +* TOC +{:toc} + +This document describes how to deploy Kubernetes on multiple hosts to set up a multi-node cluster and networking with flannel. Follow fedora [getting started guide](/docs/getting-started-guides/fedora/fedora_manual_config/) to setup 1 master (fed-master) and 2 or more nodes. Make sure that all nodes have different names (fed-node1, fed-node2 and so on) and labels (fed-node1-label, fed-node2-label, and so on) to avoid any conflict. Also make sure that the Kubernetes master host is running etcd, kube-controller-manager, kube-scheduler, and kube-apiserver services, and the nodes are running docker, kube-proxy and kubelet services. Now install flannel on Kubernetes nodes. flannel on each node configures an overlay network that docker uses. flannel runs on each node to setup a unique class-C container network. + +## Prerequisites + +You need 2 or more machines with Fedora installed. + +## Master Setup + +**Perform following commands on the Kubernetes master** + +* Configure flannel by creating a `flannel-config.json` in your current directory on fed-master. Flannel provides udp and vxlan among other overlay networking backend options. In this guide, we choose kernel based vxlan backend. The contents of the json are: + +```json +{ + "Network": "18.16.0.0/16", + "SubnetLen": 24, + "Backend": { + "Type": "vxlan", + "VNI": 1 + } +} +``` + +**NOTE:** Choose an IP range that is *NOT* part of the public IP address range. + +Add the configuration to the etcd server on fed-master. + +```shell +etcdctl set /coreos.com/network/config < flannel-config.json +``` + +* Verify the key exists in the etcd server on fed-master. + +```shell +etcdctl get /coreos.com/network/config +``` + +## Node Setup + +**Perform following commands on all Kubernetes nodes** + +Edit the flannel configuration file /etc/sysconfig/flanneld as follows: + +```shell +# Flanneld configuration options + +# etcd url location. Point this to the server where etcd runs +FLANNEL_ETCD="http://fed-master:4001" + +# etcd config key. This is the configuration key that flannel queries +# For address range assignment +FLANNEL_ETCD_KEY="/coreos.com/network" + +# Any additional options that you want to pass +FLANNEL_OPTIONS="" +``` + +**Note:** By default, flannel uses the interface for the default route. If you have multiple interfaces and would like to use an interface other than the default route one, you could add "-iface=" to FLANNEL_OPTIONS. For additional options, run `flanneld --help` on command line. + +Enable the flannel service. + +```shell +systemctl enable flanneld +``` + +If docker is not running, then starting flannel service is enough and skip the next step. + +```shell +systemctl start flanneld +``` + +If docker is already running, then stop docker, delete docker bridge (docker0), start flanneld and restart docker as follows. Another alternative is to just reboot the system (`systemctl reboot`). + +```shell +systemctl stop docker +ip link delete docker0 +systemctl start flanneld +systemctl start docker +``` + + +## **Test the cluster and flannel configuration** + +Now check the interfaces on the nodes. Notice there is now a flannel.1 interface, and the ip addresses of docker0 and flannel.1 interfaces are in the same network. You will notice that docker0 is assigned a subnet (18.16.29.0/24 as shown below) on each Kubernetes node out of the IP range configured above. A working output should look like this: + +```shell +# ip -4 a|grep inet + inet 127.0.0.1/8 scope host lo + inet 192.168.122.77/24 brd 192.168.122.255 scope global dynamic eth0 + inet 18.16.29.0/16 scope global flannel.1 + inet 18.16.29.1/24 scope global docker0 +``` + +From any node in the cluster, check the cluster members by issuing a query to etcd server via curl (only partial output is shown using `grep -E "\{|\}|key|value"`). If you set up a 1 master and 3 nodes cluster, you should see one block for each node showing the subnets they have been assigned. You can associate those subnets to each node by the MAC address (VtepMAC) and IP address (Public IP) that is listed in the output. + +```shell +curl -s http://fed-master:4001/v2/keys/coreos.com/network/subnets | python -mjson.tool +``` + +```json +{ + "node": { + "key": "/coreos.com/network/subnets", + { + "key": "/coreos.com/network/subnets/18.16.29.0-24", + "value": "{\"PublicIP\":\"192.168.122.77\",\"BackendType\":\"vxlan\",\"BackendData\":{\"VtepMAC\":\"46:f1:d0:18:d0:65\"}}" + }, + { + "key": "/coreos.com/network/subnets/18.16.83.0-24", + "value": "{\"PublicIP\":\"192.168.122.36\",\"BackendType\":\"vxlan\",\"BackendData\":{\"VtepMAC\":\"ca:38:78:fc:72:29\"}}" + }, + { + "key": "/coreos.com/network/subnets/18.16.90.0-24", + "value": "{\"PublicIP\":\"192.168.122.127\",\"BackendType\":\"vxlan\",\"BackendData\":{\"VtepMAC\":\"92:e2:80:ba:2d:4d\"}}" + } + } +} +``` + +From all nodes, review the `/run/flannel/subnet.env` file. This file was generated automatically by flannel. + +```shell +# cat /run/flannel/subnet.env +FLANNEL_SUBNET=18.16.29.1/24 +FLANNEL_MTU=1450 +FLANNEL_IPMASQ=false +``` + +At this point, we have etcd running on the Kubernetes master, and flannel / docker running on Kubernetes nodes. Next steps are for testing cross-host container communication which will confirm that docker and flannel are configured properly. + +Issue the following commands on any 2 nodes: + +```shell +# docker run -it fedora:latest bash +bash-4.3# +``` + +This will place you inside the container. Install iproute and iputils packages to install ip and ping utilities. Due to a [bug](https://bugzilla.redhat.com/show_bug.cgi?id=1142311), it is required to modify capabilities of ping binary to work around "Operation not permitted" error. + +```shell +bash-4.3# yum -y install iproute iputils +bash-4.3# setcap cap_net_raw-ep /usr/bin/ping +``` + +Now note the IP address on the first node: + +```shell +bash-4.3# ip -4 a l eth0 | grep inet + inet 18.16.29.4/24 scope global eth0 +``` + +And also note the IP address on the other node: + +```shell +bash-4.3# ip a l eth0 | grep inet + inet 18.16.90.4/24 scope global eth0 +``` +Now ping from the first node to the other node: + +```shell +bash-4.3# ping 18.16.90.4 +PING 18.16.90.4 (18.16.90.4) 56(84) bytes of data. +64 bytes from 18.16.90.4: icmp_seq=1 ttl=62 time=0.275 ms +64 bytes from 18.16.90.4: icmp_seq=2 ttl=62 time=0.372 ms +``` + +Now Kubernetes multi-node cluster is set up with overlay networking set up by flannel. + +## Support Level + + +IaaS Provider | Config. Mgmt | OS | Networking | Docs | Conforms | Support Level +-------------------- | ------------ | ------ | ---------- | --------------------------------------------- | ---------| ---------------------------- +Bare-metal | custom | Fedora | flannel | [docs](/docs/getting-started-guides/fedora/flannel_multi_node_cluster) | | Community ([@aveshagarwal](https://github.com/aveshagarwal)) +libvirt | custom | Fedora | flannel | [docs](/docs/getting-started-guides/fedora/flannel_multi_node_cluster) | | Community ([@aveshagarwal](https://github.com/aveshagarwal)) +KVM | custom | Fedora | flannel | [docs](/docs/getting-started-guides/fedora/flannel_multi_node_cluster) | | Community ([@aveshagarwal](https://github.com/aveshagarwal)) + + + +For support level information on all solutions, see the [Table of solutions](/docs/getting-started-guides/#table-of-solutions) chart. + diff --git a/docs/user-guide/connecting-to-applications-port-forward.md b/docs/user-guide/connecting-to-applications-port-forward.md index 742730229f..5876d2ab48 100644 --- a/docs/user-guide/connecting-to-applications-port-forward.md +++ b/docs/user-guide/connecting-to-applications-port-forward.md @@ -1,50 +1,50 @@ ---- -assignees: -- caesarxuchao -- mikedanese - ---- - -kubectl port-forward forwards connections to a local port to a port on a pod. Its man page is available [here](/docs/user-guide/kubectl/kubectl_port-forward). Compared to [kubectl proxy](/docs/user-guide/accessing-the-cluster/#using-kubectl-proxy), `kubectl port-forward` is more generic as it can forward TCP traffic while `kubectl proxy` can only forward HTTP traffic. This guide demonstrates how to use `kubectl port-forward` to connect to a Redis database, which may be useful for database debugging. - -## Creating a Redis master - -```shell -$ kubectl create -f examples/redis/redis-master.yaml -pods/redis-master -``` - -wait until the Redis master pod is Running and Ready, - -```shell -$ kubectl get pods -NAME READY STATUS RESTARTS AGE -redis-master 2/2 Running 0 41s -``` - -## Connecting to the Redis master[a] - -The Redis master is listening on port 6379, to verify this, - -```shell{% raw %} -$ kubectl get pods redis-master --template='{{(index (index .spec.containers 0).ports 0).containerPort}}{{"\n"}}' -6379{% endraw %} -``` - -then we forward the port 6379 on the local workstation to the port 6379 of pod redis-master, - -```shell -$ kubectl port-forward redis-master 6379:6379 -I0710 14:43:38.274550 3655 portforward.go:225] Forwarding from 127.0.0.1:6379 -> 6379 -I0710 14:43:38.274797 3655 portforward.go:225] Forwarding from [::1]:6379 -> 6379 -``` - -To verify the connection is successful, we run a redis-cli on the local workstation, - -```shell -$ redis-cli -127.0.0.1:6379> ping -PONG -``` - -Now one can debug the database from the local workstation. +--- +assignees: +- caesarxuchao +- mikedanese + +--- + +kubectl port-forward forwards connections to a local port to a port on a pod. Its man page is available [here](/docs/user-guide/kubectl/kubectl_port-forward). Compared to [kubectl proxy](/docs/user-guide/accessing-the-cluster/#using-kubectl-proxy), `kubectl port-forward` is more generic as it can forward TCP traffic while `kubectl proxy` can only forward HTTP traffic. This guide demonstrates how to use `kubectl port-forward` to connect to a Redis database, which may be useful for database debugging. + +## Creating a Redis master + +```shell +$ kubectl create -f examples/redis/redis-master.yaml +pods/redis-master +``` + +wait until the Redis master pod is Running and Ready, + +```shell +$ kubectl get pods +NAME READY STATUS RESTARTS AGE +redis-master 2/2 Running 0 41s +``` + +## Connecting to the Redis master[a] + +The Redis master is listening on port 6379, to verify this, + +```shell{% raw %} +$ kubectl get pods redis-master --template='{{(index (index .spec.containers 0).ports 0).containerPort}}{{"\n"}}' +6379{% endraw %} +``` + +then we forward the port 6379 on the local workstation to the port 6379 of pod redis-master, + +```shell +$ kubectl port-forward redis-master 6379:6379 +I0710 14:43:38.274550 3655 portforward.go:225] Forwarding from 127.0.0.1:6379 -> 6379 +I0710 14:43:38.274797 3655 portforward.go:225] Forwarding from [::1]:6379 -> 6379 +``` + +To verify the connection is successful, we run a redis-cli on the local workstation, + +```shell +$ redis-cli +127.0.0.1:6379> ping +PONG +``` + +Now one can debug the database from the local workstation. diff --git a/docs/user-guide/connecting-to-applications-proxy.md b/docs/user-guide/connecting-to-applications-proxy.md index 4e9867a339..5404d2e769 100644 --- a/docs/user-guide/connecting-to-applications-proxy.md +++ b/docs/user-guide/connecting-to-applications-proxy.md @@ -1,32 +1,32 @@ ---- -assignees: -- caesarxuchao -- lavalamp - ---- - -You have seen the [basics](/docs/user-guide/accessing-the-cluster) about `kubectl proxy` and `apiserver proxy`. This guide shows how to use them together to access a service([kube-ui](/docs/user-guide/ui)) running on the Kubernetes cluster from your workstation. - - -## Getting the apiserver proxy URL of kube-ui - -kube-ui is deployed as a cluster add-on. To find its apiserver proxy URL, - -```shell -$ kubectl cluster-info | grep "KubeUI" -KubeUI is running at https://173.255.119.104/api/v1/proxy/namespaces/kube-system/services/kube-ui -``` - -if this command does not find the URL, try the steps [here](/docs/user-guide/ui/#accessing-the-ui). - - -## Connecting to the kube-ui service from your local workstation - -The above proxy URL is an access to the kube-ui service provided by the apiserver. To access it, you still need to authenticate to the apiserver. `kubectl proxy` can handle the authentication. - -```shell -$ kubectl proxy --port=8001 -Starting to serve on localhost:8001 -``` - +--- +assignees: +- caesarxuchao +- lavalamp + +--- + +You have seen the [basics](/docs/user-guide/accessing-the-cluster) about `kubectl proxy` and `apiserver proxy`. This guide shows how to use them together to access a service([kube-ui](/docs/user-guide/ui)) running on the Kubernetes cluster from your workstation. + + +## Getting the apiserver proxy URL of kube-ui + +kube-ui is deployed as a cluster add-on. To find its apiserver proxy URL, + +```shell +$ kubectl cluster-info | grep "KubeUI" +KubeUI is running at https://173.255.119.104/api/v1/proxy/namespaces/kube-system/services/kube-ui +``` + +if this command does not find the URL, try the steps [here](/docs/user-guide/ui/#accessing-the-ui). + + +## Connecting to the kube-ui service from your local workstation + +The above proxy URL is an access to the kube-ui service provided by the apiserver. To access it, you still need to authenticate to the apiserver. `kubectl proxy` can handle the authentication. + +```shell +$ kubectl proxy --port=8001 +Starting to serve on localhost:8001 +``` + Now you can access the kube-ui service on your local workstation at [http://localhost:8001/api/v1/proxy/namespaces/kube-system/services/kube-ui](http://localhost:8001/api/v1/proxy/namespaces/kube-system/services/kube-ui) \ No newline at end of file diff --git a/docs/user-guide/getting-into-containers.md b/docs/user-guide/getting-into-containers.md index 25f0f5a3e4..f45da7b0eb 100644 --- a/docs/user-guide/getting-into-containers.md +++ b/docs/user-guide/getting-into-containers.md @@ -1,74 +1,74 @@ ---- -assignees: -- caesarxuchao -- mikedanese - ---- - -Developers can use `kubectl exec` to run commands in a container. This guide demonstrates two use cases. - -## Using kubectl exec to check the environment variables of a container - -Kubernetes exposes [services](/docs/user-guide/services/#environment-variables) through environment variables. It is convenient to check these environment variables using `kubectl exec`. - -We first create a pod and a service, - -```shell -$ kubectl create -f examples/guestbook/redis-master-controller.yaml -$ kubectl create -f examples/guestbook/redis-master-service.yaml -``` -wait until the pod is Running and Ready, - -```shell -$ kubectl get pod -NAME READY REASON RESTARTS AGE -redis-master-ft9ex 1/1 Running 0 12s -``` - -then we can check the environment variables of the pod, - -```shell -$ kubectl exec redis-master-ft9ex env -... -REDIS_MASTER_SERVICE_PORT=6379 -REDIS_MASTER_SERVICE_HOST=10.0.0.219 -... -``` - -We can use these environment variables in applications to find the service. - - -## Using kubectl exec to check the mounted volumes - -It is convenient to use `kubectl exec` to check if the volumes are mounted as expected. -We first create a Pod with a volume mounted at /data/redis, - -```shell -kubectl create -f docs/user-guide/walkthrough/pod-redis.yaml -``` - -wait until the pod is Running and Ready, - -```shell -$ kubectl get pods -NAME READY REASON RESTARTS AGE -storage 1/1 Running 0 1m -``` - -we then use `kubectl exec` to verify that the volume is mounted at /data/redis, - -```shell -$ kubectl exec storage ls /data -redis -``` - -## Using kubectl exec to open a bash terminal in a pod - -After all, open a terminal in a pod is the most direct way to introspect the pod. Assuming the pod/storage is still running, run - -```shell -$ kubectl exec -ti storage -- bash -root@storage:/data# -``` - +--- +assignees: +- caesarxuchao +- mikedanese + +--- + +Developers can use `kubectl exec` to run commands in a container. This guide demonstrates two use cases. + +## Using kubectl exec to check the environment variables of a container + +Kubernetes exposes [services](/docs/user-guide/services/#environment-variables) through environment variables. It is convenient to check these environment variables using `kubectl exec`. + +We first create a pod and a service, + +```shell +$ kubectl create -f examples/guestbook/redis-master-controller.yaml +$ kubectl create -f examples/guestbook/redis-master-service.yaml +``` +wait until the pod is Running and Ready, + +```shell +$ kubectl get pod +NAME READY REASON RESTARTS AGE +redis-master-ft9ex 1/1 Running 0 12s +``` + +then we can check the environment variables of the pod, + +```shell +$ kubectl exec redis-master-ft9ex env +... +REDIS_MASTER_SERVICE_PORT=6379 +REDIS_MASTER_SERVICE_HOST=10.0.0.219 +... +``` + +We can use these environment variables in applications to find the service. + + +## Using kubectl exec to check the mounted volumes + +It is convenient to use `kubectl exec` to check if the volumes are mounted as expected. +We first create a Pod with a volume mounted at /data/redis, + +```shell +kubectl create -f docs/user-guide/walkthrough/pod-redis.yaml +``` + +wait until the pod is Running and Ready, + +```shell +$ kubectl get pods +NAME READY REASON RESTARTS AGE +storage 1/1 Running 0 1m +``` + +we then use `kubectl exec` to verify that the volume is mounted at /data/redis, + +```shell +$ kubectl exec storage ls /data +redis +``` + +## Using kubectl exec to open a bash terminal in a pod + +After all, open a terminal in a pod is the most direct way to introspect the pod. Assuming the pod/storage is still running, run + +```shell +$ kubectl exec -ti storage -- bash +root@storage:/data# +``` + This gets you a terminal. \ No newline at end of file diff --git a/docs/user-guide/logging.md b/docs/user-guide/logging.md index 54f9e77e61..d329016c7b 100644 --- a/docs/user-guide/logging.md +++ b/docs/user-guide/logging.md @@ -1,80 +1,80 @@ ---- -assignees: -- mikedanese - ---- - -This page is designed to help you use logs to troubleshoot issues with your Kubernetes solution. - -## Logging by Kubernetes Components - -Kubernetes components, such as kubelet and apiserver, use the [glog](https://godoc.org/github.com/golang/glog) logging library. Developer conventions for logging severity are described in [docs/devel/logging.md](https://github.com/kubernetes/kubernetes/tree/{{page.githubbranch}}/docs/devel/logging.md). - -## Examining the logs of running containers - -The logs of a running container may be fetched using the command `kubectl logs`. For example, given -this pod specification [counter-pod.yaml](https://github.com/kubernetes/kubernetes/tree/{{page.githubbranch}}/examples/blog-logging/counter-pod.yaml), which has a container which writes out some text to standard -output every second. (You can find different pod specifications [here](https://github.com/kubernetes/kubernetes.github.io/tree/{{page.docsbranch}}/docs/user-guide/logging-demo/).) - -{% include code.html language="yaml" file="counter-pod.yaml" k8slink="/examples/blog-logging/counter-pod.yaml" %} - -we can run the pod: - -```shell -$ kubectl create -f ./counter-pod.yaml -pods/counter -``` - -and then fetch the logs: - -```shell -$ kubectl logs counter -0: Tue Jun 2 21:37:31 UTC 2015 -1: Tue Jun 2 21:37:32 UTC 2015 -2: Tue Jun 2 21:37:33 UTC 2015 -3: Tue Jun 2 21:37:34 UTC 2015 -4: Tue Jun 2 21:37:35 UTC 2015 -5: Tue Jun 2 21:37:36 UTC 2015 -... -``` - -If a pod has more than one container then you need to specify which container's log files should -be fetched e.g. - -```shell -$ kubectl logs kube-dns-v3-7r1l9 etcd -2015/06/23 00:43:10 etcdserver: start to snapshot (applied: 30003, lastsnap: 20002) -2015/06/23 00:43:10 etcdserver: compacted log at index 30003 -2015/06/23 00:43:10 etcdserver: saved snapshot at index 30003 -2015/06/23 02:05:42 etcdserver: start to snapshot (applied: 40004, lastsnap: 30003) -2015/06/23 02:05:42 etcdserver: compacted log at index 40004 -2015/06/23 02:05:42 etcdserver: saved snapshot at index 40004 -2015/06/23 03:28:31 etcdserver: start to snapshot (applied: 50005, lastsnap: 40004) -2015/06/23 03:28:31 etcdserver: compacted log at index 50005 -2015/06/23 03:28:31 etcdserver: saved snapshot at index 50005 -2015/06/23 03:28:56 filePurge: successfully removed file default.etcd/member/wal/0000000000000000-0000000000000000.wal -2015/06/23 04:51:03 etcdserver: start to snapshot (applied: 60006, lastsnap: 50005) -2015/06/23 04:51:03 etcdserver: compacted log at index 60006 -2015/06/23 04:51:03 etcdserver: saved snapshot at index 60006 -... -``` - -## Cluster level logging to Google Cloud Logging - -The getting started guide [Cluster Level Logging to Google Cloud Logging](/docs/getting-started-guides/logging) -explains how container logs are ingested into [Google Cloud Logging](https://cloud.google.com/logging/docs/) -and shows how to query the ingested logs. - -## Cluster level logging with Elasticsearch and Kibana - -The getting started guide [Cluster Level Logging with Elasticsearch and Kibana](/docs/getting-started-guides/logging-elasticsearch) -describes how to ingest cluster level logs into Elasticsearch and view them using Kibana. - -## Ingesting Application Log Files - -Cluster level logging only collects the standard output and standard error output of the applications -running in containers. The guide [Collecting log files from within containers with Fluentd and sending them to the Google Cloud Logging service](https://github.com/kubernetes/contrib/blob/master/logging/fluentd-sidecar-gcp/README.md) explains how the log files of applications can also be ingested into Google Cloud logging. - -## Known issues - +--- +assignees: +- mikedanese + +--- + +This page is designed to help you use logs to troubleshoot issues with your Kubernetes solution. + +## Logging by Kubernetes Components + +Kubernetes components, such as kubelet and apiserver, use the [glog](https://godoc.org/github.com/golang/glog) logging library. Developer conventions for logging severity are described in [docs/devel/logging.md](https://github.com/kubernetes/kubernetes/tree/{{page.githubbranch}}/docs/devel/logging.md). + +## Examining the logs of running containers + +The logs of a running container may be fetched using the command `kubectl logs`. For example, given +this pod specification [counter-pod.yaml](https://github.com/kubernetes/kubernetes/tree/{{page.githubbranch}}/examples/blog-logging/counter-pod.yaml), which has a container which writes out some text to standard +output every second. (You can find different pod specifications [here](https://github.com/kubernetes/kubernetes.github.io/tree/{{page.docsbranch}}/docs/user-guide/logging-demo/).) + +{% include code.html language="yaml" file="counter-pod.yaml" k8slink="/examples/blog-logging/counter-pod.yaml" %} + +we can run the pod: + +```shell +$ kubectl create -f ./counter-pod.yaml +pods/counter +``` + +and then fetch the logs: + +```shell +$ kubectl logs counter +0: Tue Jun 2 21:37:31 UTC 2015 +1: Tue Jun 2 21:37:32 UTC 2015 +2: Tue Jun 2 21:37:33 UTC 2015 +3: Tue Jun 2 21:37:34 UTC 2015 +4: Tue Jun 2 21:37:35 UTC 2015 +5: Tue Jun 2 21:37:36 UTC 2015 +... +``` + +If a pod has more than one container then you need to specify which container's log files should +be fetched e.g. + +```shell +$ kubectl logs kube-dns-v3-7r1l9 etcd +2015/06/23 00:43:10 etcdserver: start to snapshot (applied: 30003, lastsnap: 20002) +2015/06/23 00:43:10 etcdserver: compacted log at index 30003 +2015/06/23 00:43:10 etcdserver: saved snapshot at index 30003 +2015/06/23 02:05:42 etcdserver: start to snapshot (applied: 40004, lastsnap: 30003) +2015/06/23 02:05:42 etcdserver: compacted log at index 40004 +2015/06/23 02:05:42 etcdserver: saved snapshot at index 40004 +2015/06/23 03:28:31 etcdserver: start to snapshot (applied: 50005, lastsnap: 40004) +2015/06/23 03:28:31 etcdserver: compacted log at index 50005 +2015/06/23 03:28:31 etcdserver: saved snapshot at index 50005 +2015/06/23 03:28:56 filePurge: successfully removed file default.etcd/member/wal/0000000000000000-0000000000000000.wal +2015/06/23 04:51:03 etcdserver: start to snapshot (applied: 60006, lastsnap: 50005) +2015/06/23 04:51:03 etcdserver: compacted log at index 60006 +2015/06/23 04:51:03 etcdserver: saved snapshot at index 60006 +... +``` + +## Cluster level logging to Google Cloud Logging + +The getting started guide [Cluster Level Logging to Google Cloud Logging](/docs/getting-started-guides/logging) +explains how container logs are ingested into [Google Cloud Logging](https://cloud.google.com/logging/docs/) +and shows how to query the ingested logs. + +## Cluster level logging with Elasticsearch and Kibana + +The getting started guide [Cluster Level Logging with Elasticsearch and Kibana](/docs/getting-started-guides/logging-elasticsearch) +describes how to ingest cluster level logs into Elasticsearch and view them using Kibana. + +## Ingesting Application Log Files + +Cluster level logging only collects the standard output and standard error output of the applications +running in containers. The guide [Collecting log files from within containers with Fluentd and sending them to the Google Cloud Logging service](https://github.com/kubernetes/contrib/blob/master/logging/fluentd-sidecar-gcp/README.md) explains how the log files of applications can also be ingested into Google Cloud logging. + +## Known issues + Kubernetes does log rotation for Kubernetes components and docker containers. The command `kubectl logs` currently only read the latest logs, not all historical ones. \ No newline at end of file From c42b866ad2f043cf478bce677def1d32d6eb688b Mon Sep 17 00:00:00 2001 From: adieu Date: Thu, 1 Sep 2016 22:32:29 +0800 Subject: [PATCH 008/688] Minor style tweaks. --- docs/admin/out-of-resource.md | 6 +++--- docs/admin/resourcequota/index.md | 4 ++-- docs/getting-started-guides/docker-multinode.md | 2 +- docs/user-guide/connecting-applications.md | 2 +- docs/user-guide/monitoring.md | 2 +- 5 files changed, 8 insertions(+), 8 deletions(-) diff --git a/docs/admin/out-of-resource.md b/docs/admin/out-of-resource.md index 480e074c42..8af7114ed6 100644 --- a/docs/admin/out-of-resource.md +++ b/docs/admin/out-of-resource.md @@ -29,7 +29,7 @@ table below. The value of each signal is described in the description column ba summary API. | Eviction Signal | Description | -|------------------|---------------------------------------------------------------------------------| +|----------------------------|-----------------------------------------------------------------------| | `memory.available` | `memory.available` := `node.status.capacity[memory]` - `node.stats.memory.workingSet` | | `nodefs.available` | `nodefs.available` := `node.stats.fs.available` | | `nodefs.inodesFree` | `nodefs.inodesFree` := `node.stats.fs.inodesFree` | @@ -128,7 +128,7 @@ reflects the node is under pressure. The following node conditions are defined that correspond to the specified eviction signal. | Node Condition | Eviction Signal | Description | -|----------------|------------------|------------------------------------------------------------------| +|-------------------------|-------------------------------|--------------------------------------------| | `MemoryPressure` | `memory.available` | Available memory on the node has satisfied an eviction threshold | | `DiskPressure` | `nodefs.available`, `nodefs.inodesFree`, `imagefs.available`, or `imagefs.inodesFree` | Available disk space and inodes on either the node's root filesytem or image filesystem has satisfied an eviction threshold | @@ -270,7 +270,7 @@ the node depends on the [oom_killer](https://lwn.net/Articles/391222/) to respon The `kubelet` sets a `oom_score_adj` value for each container based on the quality of service for the pod. | Quality of Service | oom_score_adj | -| ----------------- | ------------- | +|----------------------------|-----------------------------------------------------------------------| | `Guaranteed` | -998 | | `BestEffort` | 1000 | | `Burstable` | min(max(2, 1000 - (1000 * memoryRequestBytes) / machineMemoryCapacityBytes), 999) | diff --git a/docs/admin/resourcequota/index.md b/docs/admin/resourcequota/index.md index bda5120121..ff76942702 100644 --- a/docs/admin/resourcequota/index.md +++ b/docs/admin/resourcequota/index.md @@ -58,7 +58,7 @@ that can be requested in a given namespace. The following resource types are supported: | Resource Name | Description | -| ------------ | ----------- | +| --------------------- | ----------------------------------------------------------- | | `cpu` | Across all pods in a non-terminal state, the sum of CPU requests cannot exceed this value. | | `limits.cpu` | Across all pods in a non-terminal state, the sum of CPU limits cannot exceed this value. | | `limits.memory` | Across all pods in a non-terminal state, the sum of memory limits cannot exceed this value. | @@ -73,7 +73,7 @@ The number of objects of a given type can be restricted. The following types are supported: | Resource Name | Description | -| ------------ | ----------- | +| ------------------------------- | ------------------------------------------------- | | `configmaps` | The total number of config maps that can exist in the namespace. | | `persistentvolumeclaims` | The total number of [persistent volume claims](/docs/user-guide/persistent-volumes/#persistentvolumeclaims) that can exist in the namespace. | | `pods` | The total number of pods in a non-terminal state that can exist in the namespace. A pod is in a terminal state if `status.phase in (Failed, Succeeded)` is true. | diff --git a/docs/getting-started-guides/docker-multinode.md b/docs/getting-started-guides/docker-multinode.md index 14e475ee10..5ac0b3413a 100644 --- a/docs/getting-started-guides/docker-multinode.md +++ b/docs/getting-started-guides/docker-multinode.md @@ -16,7 +16,7 @@ and a _worker_ node which receives work from the master. You can repeat the proc times to create larger clusters. Here's a diagram of what the final result will look like: -![Kubernetes on Docker](https://github.com/kubernetes/kubernetes/blob/master/docs/getting-started-guides/k8s-docker.png) +![Kubernetes on Docker](/images/docs/k8s-docker.png) ### Bootstrap Docker diff --git a/docs/user-guide/connecting-applications.md b/docs/user-guide/connecting-applications.md index 4f0b804a4e..f75187d6c6 100644 --- a/docs/user-guide/connecting-applications.md +++ b/docs/user-guide/connecting-applications.md @@ -9,7 +9,7 @@ assignees: * TOC {:toc} -# The Kubernetes model for connecting containers +## The Kubernetes model for connecting containers Now that you have a continuously running, replicated application you can expose it on a network. Before discussing the Kubernetes approach to networking, it is worthwhile to contrast it with the "normal" way networking works with Docker. diff --git a/docs/user-guide/monitoring.md b/docs/user-guide/monitoring.md index 6125291421..0c5f673708 100644 --- a/docs/user-guide/monitoring.md +++ b/docs/user-guide/monitoring.md @@ -6,7 +6,7 @@ assignees: Understanding how an application behaves when deployed is crucial to scaling the application and providing a reliable service. In a Kubernetes cluster, application performance can be examined at many different levels: containers, [pods](/docs/user-guide/pods), [services](/docs/user-guide/services), and whole clusters. As part of Kubernetes we want to provide users with detailed resource usage information about their running applications at all these levels. This will give users deep insights into how their applications are performing and where possible application bottlenecks may be found. In comes [Heapster](https://github.com/kubernetes/heapster), a project meant to provide a base monitoring platform on Kubernetes. -### Overview +## Overview Heapster is a cluster-wide aggregator of monitoring and event data. It currently supports Kubernetes natively and works on all Kubernetes setups. Heapster runs as a pod in the cluster, similar to how any Kubernetes application would run. The Heapster pod discovers all nodes in the cluster and queries usage information from the nodes' [Kubelet](https://releases.k8s.io/{{page.githubbranch}}/DESIGN.md#kubelet)s, the on-machine Kubernetes agent. The Kubelet itself fetches the data from [cAdvisor](https://github.com/google/cadvisor). Heapster groups the information by pod along with the relevant labels. This data is then pushed to a configurable backend for storage and visualization. Currently supported backends include [InfluxDB](http://influxdb.com/) (with [Grafana](http://grafana.org/) for visualization), [Google Cloud Monitoring](https://cloud.google.com/monitoring/) and many others described in more details [here](https://github.com/kubernetes/heapster/blob/master/docs/sink-configuration.md). The overall architecture of the service can be seen below: From 660376ccd9d34ce9e2acbd050c7a87d7706642d4 Mon Sep 17 00:00:00 2001 From: Cole Mickens Date: Mon, 26 Sep 2016 17:15:38 -0700 Subject: [PATCH 009/688] azure: update links, owners, metadata --- _data/guides.yml | 4 ++-- docs/getting-started-guides/azure.md | 12 ++++-------- docs/getting-started-guides/index.md | 4 ++-- 3 files changed, 8 insertions(+), 12 deletions(-) diff --git a/_data/guides.yml b/_data/guides.yml index 7c41285d0e..ab622a0284 100644 --- a/_data/guides.yml +++ b/_data/guides.yml @@ -163,10 +163,10 @@ toc: path: /docs/getting-started-guides/gce/ - title: Running Kubernetes on AWS EC2 path: /docs/getting-started-guides/aws/ + - title: Running Kubernetes on Azure + path: /docs/getting-started-guides/azure/ - title: Running Kubernetes on Azure (Weave-based) path: /docs/getting-started-guides/coreos/azure/ - - title: Running Kubernetes on Azure (Flannel-based) - path: /docs/getting-started-guides/azure/ - title: Running Kubernetes on CenturyLink Cloud path: /docs/getting-started-guides/clc/ - title: Running Kubernetes on IBM SoftLayer diff --git a/docs/getting-started-guides/azure.md b/docs/getting-started-guides/azure.md index a6f29ef030..40652e3172 100644 --- a/docs/getting-started-guides/azure.md +++ b/docs/getting-started-guides/azure.md @@ -5,12 +5,8 @@ assignees: --- -* TOC -{:toc} - - -## Overview - The recommended approach for deploying a Kubernetes 1.4 cluster on Azure is the -[`kubernetes-anywhere`](https://github.com/kubernetes/kubernetes-anywhere) project. You will want to take a look at the -[Azure Getting Started Guide](https://github.com/kubernetes/kubernetes-anywhere/blob/master/phase1/azure/README.md). \ No newline at end of file +[`kubernetes-anywhere`](https://github.com/kubernetes/kubernetes-anywhere) project. + +You will want to take a look at the +[Azure Getting Started Guide](https://github.com/kubernetes/kubernetes-anywhere/blob/master/phase1/azure/README.md). diff --git a/docs/getting-started-guides/index.md b/docs/getting-started-guides/index.md index ec5eb98759..de7c06bd82 100644 --- a/docs/getting-started-guides/index.md +++ b/docs/getting-started-guides/index.md @@ -48,8 +48,8 @@ few commands, and have active community support. - [GCE](/docs/getting-started-guides/gce) - [AWS](/docs/getting-started-guides/aws) +- [Azure](/docs/getting-started-guides/azure/) - [Azure](/docs/getting-started-guides/coreos/azure/) (Weave-based, contributed by WeaveWorks employees) -- [Azure](/docs/getting-started-guides/azure/) (Flannel-based, contributed by Microsoft employee) - [CenturyLink Cloud](/docs/getting-started-guides/clc) - [IBM SoftLayer](https://github.com/patrocinio/kubernetes-softlayer) @@ -122,7 +122,7 @@ Stackpoint.io | | multi-support | multi-support | [d AppsCode.com | Saltstack | Debian | multi-support | [docs](https://appscode.com/products/cloud-deployment/) | | Commercial GCE | Saltstack | Debian | GCE | [docs](/docs/getting-started-guides/gce) | ['œ“][1] | Project Azure | CoreOS | CoreOS | Weave | [docs](/docs/getting-started-guides/coreos/azure/) | | Community ([@errordeveloper](https://github.com/errordeveloper), [@squillace](https://github.com/squillace), [@chanezon](https://github.com/chanezon), [@crossorigin](https://github.com/crossorigin)) -Azure | CoreOS | CoreOS | flannel | [docs](/docs/getting-started-guides/azure) | | Community ([@colemickens](https://github.com/colemickens)) +Azure | Ignition | Ubuntu | Azure | [docs](/docs/getting-started-guides/azure) | | Community (Microsoft: [@brendandburns](https://github.com/brendandburns), [@colemickens](https://github.com/colemickens)) Docker Single Node | custom | N/A | local | [docs](/docs/getting-started-guides/docker) | | Project ([@brendandburns](https://github.com/brendandburns)) Docker Multi Node | custom | N/A | flannel | [docs](/docs/getting-started-guides/docker-multinode) | | Project ([@brendandburns](https://github.com/brendandburns)) Bare-metal | Ansible | Fedora | flannel | [docs](/docs/getting-started-guides/fedora/fedora_ansible_config) | | Project From 777e234970d65d51e658e4b3d6031fc95b9328a3 Mon Sep 17 00:00:00 2001 From: Jimmy Cuadra Date: Tue, 27 Sep 2016 17:43:34 -0700 Subject: [PATCH 010/688] Explain how to define group memberships with client cert authentication. --- docs/admin/authentication.md | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/docs/admin/authentication.md b/docs/admin/authentication.md index c3c5e52c77..2a7cad52bf 100644 --- a/docs/admin/authentication.md +++ b/docs/admin/authentication.md @@ -60,7 +60,17 @@ Client certificate authentication is enabled by passing the `--client-ca-file=SO option to API server. The referenced file must contain one or more certificates authorities to use to validate client certificates presented to the API server. If a client certificate is presented and verified, the common name of the subject is used as the user name for the -request. +request. As of Kubernetes 1.4, client certificates can also indicate a user's group memberships +using the certificate's organization fields. To include multiple group memberships for a user, +include multiple organization fields in the certificate. + +For example, using the `openssl` command line tool to generate a certificate signing request: + +``` bash +openssl req -new -key jbeda.pem -out jbeda-csr.pem -subj "/CN=jbeda/O=app1/O=app2" +``` + +This would create a CSR for the username "jbeda", belonging to two groups, "app1" and "app2". See [APPENDIX](#appendix) for how to generate a client cert. From 19e65e224a2fb9e31dc8aa078e4aecaf30ff1d79 Mon Sep 17 00:00:00 2001 From: Jimmy Cuadra Date: Tue, 27 Sep 2016 21:30:08 -0700 Subject: [PATCH 011/688] Document subresources in RBAC. --- docs/admin/authorization.md | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/docs/admin/authorization.md b/docs/admin/authorization.md index 1e7b180773..0c8508a1ec 100644 --- a/docs/admin/authorization.md +++ b/docs/admin/authorization.md @@ -323,6 +323,32 @@ roleRef: apiVersion: rbac.authorization.k8s.io/v1alpha1 ``` +### Referring to Resources + +Most resources are represented by a string representation of their name, such as "pods", just as it +appears in the URL for the relevant API endpoint. However, some Kubernetes APIs involve a +"subresource" such as the logs for a pod. The URL for the pods logs endpoint is: + +``` +GET /api/v1/namespaces/{namespace}/pods/{name}/log +``` + +In this case, "pods" is the namespaced resource, and "log" is a subresource of pods. To represent +this in an RBAC role, use a slash to delimit the resource and subresource names. To allow a subject +to read both pods and pod logs, you would write: + +```yaml +kind: Role +apiVersion: rbac.authorization.k8s.io/v1alpha1 +metadata: + namespace: default + name: pod-and-pod-logs-reader +rules: + - apiGroups: [""] + resources: ["pods", "pods/log"] + verbs: ["get", "list"] +``` + ### Referring to Subjects RoleBindings and ClusterRoleBindings bind "subjects" to "roles". @@ -351,6 +377,7 @@ to groups with the `system:` prefix. Only the `subjects` section of a RoleBinding object shown in the following examples. For a user called `alice@example.com`, specify + ```yaml subjects: - kind: User @@ -358,6 +385,7 @@ subjects: ``` For a group called `frontend-admins`, specify: + ```yaml subjects: - kind: Group @@ -365,6 +393,7 @@ subjects: ``` For the default service account in the kube-system namespace: + ```yaml subjects: - kind: ServiceAccount @@ -373,6 +402,7 @@ subjects: ``` For all service accounts in the `qa` namespace: + ```yaml subjects: - kind: Group @@ -380,6 +410,7 @@ subjects: ``` For all service accounts everywhere: + ```yaml subjects: - kind: Group From aa9dfba7db14ec676f1550e4c367381f8e1ee1d0 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ra=C3=BAl=20Naveiras?= Date: Wed, 28 Sep 2016 00:07:12 +0100 Subject: [PATCH 012/688] Used master branch to link files from the repo Implements #1269 --- _config.yml | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/_config.yml b/_config.yml index 5094499bfe..1a7fefdb6d 100644 --- a/_config.yml +++ b/_config.yml @@ -18,7 +18,7 @@ defaults: values: version: "v1.3" githubbranch: "master" - docsbranch: "release-1.3" + docsbranch: "master" - scope: path: "docs" From 5b4286ff3483b9fe1891be00bdc48b8b955af08a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?V=C3=ADt=20List=C3=ADk?= Date: Wed, 28 Sep 2016 14:12:08 +0200 Subject: [PATCH 013/688] fixed path to worker startup script --- docs/getting-started-guides/docker-multinode.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/getting-started-guides/docker-multinode.md b/docs/getting-started-guides/docker-multinode.md index 14e475ee10..6d59cf591e 100644 --- a/docs/getting-started-guides/docker-multinode.md +++ b/docs/getting-started-guides/docker-multinode.md @@ -86,7 +86,7 @@ Clone the `kube-deploy` repo, and run `worker.sh` on the worker machine _with ro ```shell $ git clone https://github.com/kubernetes/kube-deploy -$ cd docker-multinode +$ cd kube-deploy/docker-multinode $ export MASTER_IP=${SOME_IP} $ ./worker.sh ``` From c8abb1c5f84986c77a1c7d1b4f1db79751ed2846 Mon Sep 17 00:00:00 2001 From: Bryan Boreham Date: Wed, 28 Sep 2016 16:30:41 +0100 Subject: [PATCH 014/688] Clarify what kubenet does and does not do --- docs/admin/network-plugins.md | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/docs/admin/network-plugins.md b/docs/admin/network-plugins.md index c0397016da..0d7f8981e2 100644 --- a/docs/admin/network-plugins.md +++ b/docs/admin/network-plugins.md @@ -40,7 +40,11 @@ The CNI plugin is selected by passing Kubelet the `--network-plugin=cni` command ### kubenet -The Linux-only kubenet plugin provides functionality similar to the `--configure-cbr0` kubelet command-line option. It creates a Linux bridge named `cbr0` and creates a veth pair for each pod with the host end of each pair connected to `cbr0`. The pod end of the pair is assigned an IP address allocated from a range assigned to the node either through configuration or by the controller-manager. `cbr0` is assigned an MTU matching the smallest MTU of an enabled normal interface on the host. The kubenet plugin is currently mutually exclusive with, and will eventually replace, the --configure-cbr0 option. It is also currently incompatible with the flannel experimental overlay. +Kubenet is intended to be a very basic, simple network plugin, on Linux only. It does not, of itself, implement more advanced features like cross-node networking or network policy. It is typically used together with a cloud provider that sets up routing rules for communication between nodes, or in single-node environments. + +Kubenet creates a Linux bridge named `cbr0` and creates a veth pair for each pod with the host end of each pair connected to `cbr0`. The pod end of the pair is assigned an IP address allocated from a range assigned to the node either through configuration or by the controller-manager. `cbr0` is assigned an MTU matching the smallest MTU of an enabled normal interface on the host. + +The kubenet plugin is currently mutually exclusive with, and will eventually replace, the --configure-cbr0 option. It is also currently incompatible with the flannel experimental overlay. The plugin requires a few things: From 8aa10a6fdacb872b15aea0b1189b6a2cb977e5f7 Mon Sep 17 00:00:00 2001 From: Brandon Philips Date: Fri, 16 Sep 2016 18:25:50 -0700 Subject: [PATCH 015/688] admin: dns: merge from the build dir Try and clean this mess up where the build dir has user facing docs and move them here. Ref: https://github.com/kubernetes/kubernetes/pull/32931 --- docs/admin/dns.md | 189 +++++++++++++++++++++++++++++++++++++++++++--- 1 file changed, 178 insertions(+), 11 deletions(-) diff --git a/docs/admin/dns.md b/docs/admin/dns.md index a85f2338ce..9470a6c7c7 100644 --- a/docs/admin/dns.md +++ b/docs/admin/dns.md @@ -9,10 +9,14 @@ assignees: ## Introduction As of Kubernetes 1.3, DNS is a built-in service launched automatically using the addon manager [cluster add-on](http://releases.k8s.io/{{page.githubbranch}}/cluster/addons/README.md). -A DNS Pod and Service will be scheduled on the cluster, and the kubelets will be -configured to tell individual containers to use the DNS Service's IP to resolve DNS names. -Every Service defined in the cluster (including the DNS server itself) will be +Kubernetes DNS schedules a DNS Pod and Service on the cluster, and configures +the kubelets to tell individual containers to use the DNS Service's IP to +resolve DNS names. + +## What things get DNS names? + +Every Service defined in the cluster (including the DNS server itself) is assigned a DNS name. By default, a client Pod's DNS search list will include the Pod's own namespace and the cluster's default domain. This is best illustrated by example: @@ -22,17 +26,161 @@ in namespace `bar` can look up this service by simply doing a DNS query for `foo`. A Pod running in namespace `quux` can look up this service by doing a DNS query for `foo.bar`. -The Kubernetes cluster DNS server (based off the [SkyDNS](https://github.com/skynetservices/skydns) library) -supports forward lookups (A records), service lookups (SRV records) and reverse IP address lookups (PTR records). +## Supported DNS schema +The following sections detail the supported record types and layout that is +supported. Any other layout or names or queries that happen to work are +considered implementation details and are subject to change without warning. -## How it Works +### Services -The running Kubernetes DNS pod holds 3 containers - kubedns, dnsmasq and a health check called healthz. -The kubedns process watches the Kubernetes master for changes in Services and Endpoints, and maintains -in-memory lookup structures to service DNS requests. The dnsmasq container adds DNS caching to improve -performance. The healthz container provides a single health check endpoint while performing dual healthchecks -(for dnsmasq and kubedns). +#### A records + +"Normal" (not headless) Services are assigned a DNS A record for a name of the +form `my-svc.my-namespace.svc.cluster.local`. This resolves to the cluster IP +of the Service. + +"Headless" (without a cluster IP) Services are also assigned a DNS A record for +a name of the form `my-svc.my-namespace.svc.cluster.local`. Unlike normal +Services, this resolves to the set of IPs of the pods selected by the Service. +Clients are expected to consume the set or else use standard round-robin +selection from the set. + +### SRV records + +SRV Records are created for named ports that are part of normal or Headless +Services. +For each named port, the SRV record would have the form +`_my-port-name._my-port-protocol.my-svc.my-namespace.svc.cluster.local`. +For a regular service, this resolves to the port number and the CNAME: +`my-svc.my-namespace.svc.cluster.local`. +For a headless service, this resolves to multiple answers, one for each pod +that is backing the service, and contains the port number and a CNAME of the pod +of the form `auto-generated-name.my-svc.my-namespace.svc.cluster.local`. + +### Backwards compatibility + +Previous versions of kube-dns made names of the for +`my-svc.my-namespace.cluster.local` (the 'svc' level was added later). This +is no longer supported. + +### Pods + +#### A Records + +When enabled, pods are assigned a DNS A record in the form of `pod-ip-address.my-namespace.pod.cluster.local`. + +For example, a pod with ip `1.2.3.4` in the namespace `default` with a dns name of `cluster.local` would have an entry: `1-2-3-4.default.pod.cluster.local`. + +#### A Records and hostname based on Pod's hostname and subdomain fields + +Currently when a pod is created, its hostname is the Pod's `metadata.name` value. + +With v1.2, users can specify a Pod annotation, `pod.beta.kubernetes.io/hostname`, to specify what the Pod's hostname should be. +The Pod annotation, if specified, takes precendence over the Pod's name, to be the hostname of the pod. +For example, given a Pod with annotation `pod.beta.kubernetes.io/hostname: my-pod-name`, the Pod will have its hostname set to "my-pod-name". + +With v1.3, the PodSpec has a `hostname` field, which can be used to specify the Pod's hostname. This field value takes precedence over the +`pod.beta.kubernetes.io/hostname` annotation value. + +v1.2 introduces a beta feature where the user can specify a Pod annotation, `pod.beta.kubernetes.io/subdomain`, to specify the Pod's subdomain. +The final domain will be "...svc.". +For example, a Pod with the hostname annotation set to "foo", and the subdomain annotation set to "bar", in namespace "my-namespace", will have the FQDN "foo.bar.my-namespace.svc.cluster.local" + +With v1.3, the PodSpec has a `subdomain` field, which can be used to specify the Pod's subdomain. This field value takes precedence over the +`pod.beta.kubernetes.io/subdomain` annotation value. + +Example: + +```yaml +apiVersion: v1 +kind: Pod +metadata: + name: busybox + namespace: default +spec: + hostname: busybox-1 + subdomain: default + containers: + - image: busybox + command: + - sleep + - "3600" + name: busybox +``` + +If there exists a headless service in the same namespace as the pod and with the same name as the subdomain, the cluster's KubeDNS Server also returns an A record for the Pod's fully qualified hostname. +Given a Pod with the hostname set to "foo" and the subdomain set to "bar", and a headless Service named "bar" in the same namespace, the pod will see it's own FQDN as "foo.bar.my-namespace.svc.cluster.local". DNS serves an A record at that name, pointing to the Pod's IP. + +With v1.2, the Endpoints object also has a new annotation `endpoints.beta.kubernetes.io/hostnames-map`. Its value is the json representation of map[string(IP)][endpoints.HostRecord], for example: '{"10.245.1.6":{HostName: "my-webserver"}}'. +If the Endpoints are for a headless service, an A record is created with the format ...svc. +For the example json, if endpoints are for a headless service named "bar", and one of the endpoints has IP "10.245.1.6", an A is created with the name "my-webserver.bar.my-namespace.svc.cluster.local" and the A record lookup would return "10.245.1.6". +This endpoints annotation generally does not need to be specified by end-users, but can used by the internal service controller to deliver the aforementioned feature. + +With v1.3, The Endpoints object can specify the `hostname` for any endpoint, along with its IP. The hostname field takes precedence over the hostname value +that might have been specified via the `endpoints.beta.kubernetes.io/hostnames-map` annotation. + +With v1.3, the following annotations are deprecated: `pod.beta.kubernetes.io/hostname`, `pod.beta.kubernetes.io/subdomain`, `endpoints.beta.kubernetes.io/hostnames-map` + +## How do I test if it is working? + +### Create a simple Pod to use as a test environment. + +Create a file named busybox.yaml with the +following contents: + +```yaml +apiVersion: v1 +kind: Pod +metadata: + name: busybox + namespace: default +spec: + containers: + - image: busybox + command: + - sleep + - "3600" + imagePullPolicy: IfNotPresent + name: busybox + restartPolicy: Always +``` + +Then create a pod using this file: + +``` +kubectl create -f busybox.yaml +``` + +### Wait for this pod to go into the running state. + +You can get its status with: +``` +kubectl get pods busybox +``` + +You should see: +``` +NAME READY STATUS RESTARTS AGE +busybox 1/1 Running 0 +``` + +### Validate DNS works +Once that pod is running, you can exec nslookup in that environment: +``` +kubectl exec busybox -- nslookup kubernetes.default +``` + +You should see something like: +``` +Server: 10.0.0.10 +Address 1: 10.0.0.10 + +Name: kubernetes.default +Address 1: 10.0.0.1 +``` + +If you see that, DNS is working correctly. ## Kubernetes Federation (Multiple Zone support) @@ -44,6 +192,25 @@ the lookup of federated services (which span multiple Kubernetes clusters). See the [Cluster Federation Administrators' Guide](/docs/admin/federation) for more details on Cluster Federation and multi-site support. +## How it Works + +The running Kubernetes DNS pod holds 3 containers - kubedns, dnsmasq and a health check called healthz. +The kubedns process watches the Kubernetes master for changes in Services and Endpoints, and maintains +in-memory lookup structures to service DNS requests. The dnsmasq container adds DNS caching to improve +performance. The healthz container provides a single health check endpoint while performing dual healthchecks +(for dnsmasq and kubedns). + +The DNS pod is exposed as a Kubernetes Service with a static IP. Once assigned the +kubelet passes DNS configured using the `--cluster-dns=10.0.0.10` flag to each +container. + +DNS names also need domains. The local domain is configurable, in the kubelet using +the flag `--cluster-domain=` + +The Kubernetes cluster DNS server (based off the [SkyDNS](https://github.com/skynetservices/skydns) library) +supports forward lookups (A records), service lookups (SRV records) and reverse IP address lookups (PTR records). + + ## References - [Docs for the DNS cluster addon](http://releases.k8s.io/{{page.githubbranch}}/build/kube-dns/README.md) From f0ea23d16c023607cc0391501f203b861244792d Mon Sep 17 00:00:00 2001 From: callermann Date: Wed, 28 Sep 2016 20:40:02 -0400 Subject: [PATCH 016/688] Update docker-multinode.md Modified cd command on line 89 (Adding a worker node) to reflect proper path. --- docs/getting-started-guides/docker-multinode.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/getting-started-guides/docker-multinode.md b/docs/getting-started-guides/docker-multinode.md index 14e475ee10..6d59cf591e 100644 --- a/docs/getting-started-guides/docker-multinode.md +++ b/docs/getting-started-guides/docker-multinode.md @@ -86,7 +86,7 @@ Clone the `kube-deploy` repo, and run `worker.sh` on the worker machine _with ro ```shell $ git clone https://github.com/kubernetes/kube-deploy -$ cd docker-multinode +$ cd kube-deploy/docker-multinode $ export MASTER_IP=${SOME_IP} $ ./worker.sh ``` From 3965d87cecbddd0630ad200518edd61a91b069e7 Mon Sep 17 00:00:00 2001 From: Ian Lewis Date: Thu, 29 Sep 2016 17:34:39 +0900 Subject: [PATCH 017/688] Created new ThirdPartyResource Glossary page. 1. Created a new page for the ThirdPartyResource object. 2. Added a link for the new page to the Glossary menu. --- _data/reference.yml | 2 + docs/user-guide/thirdpartyresources.md | 118 +++++++++++++++++++++++++ 2 files changed, 120 insertions(+) create mode 100644 docs/user-guide/thirdpartyresources.md diff --git a/_data/reference.yml b/_data/reference.yml index 3cdd91de6e..e82f3df031 100644 --- a/_data/reference.yml +++ b/_data/reference.yml @@ -230,6 +230,8 @@ toc: path: /docs/user-guide/services/ - title: Service Accounts path: /docs/user-guide/service-accounts/ + - title: Third Party Resources + path: /docs/user-guide/thirdpartyresources/ - title: Volumes path: /docs/user-guide/volumes/ diff --git a/docs/user-guide/thirdpartyresources.md b/docs/user-guide/thirdpartyresources.md new file mode 100644 index 0000000000..d8f2bc5ba9 --- /dev/null +++ b/docs/user-guide/thirdpartyresources.md @@ -0,0 +1,118 @@ +--- +assignees: +- IanLewis + +--- + +* TOC +{:toc} + +## What is ThirdPartyResource? + +Kubernetes comes with many built-in API objects. However, there are often times when you might need to extend Kubernetes with their own API objects in order to do custom automation. + +`ThirdPartyResource` objects are a way to extend the Kubernetes API with a new API object type. The new API object type will be given an API endpoint URL and support CRUD operations, and watch API. You can then create custom objects using this API endpoint. You can think of `ThirdPartyResources` as being much like the schema for a database table. Once you have created the table, you can then start storing rows in the table. Once created, `ThirdPartyResources` can act as the data model behind custom controllers or automation programs. + +## Structure of a ThirdPartyResource + +Each `ThirdPartyResource` has the following: + + * `metadata` - Standard Kubernetes object metadata. + * `kind` - The kind of the resources described by this third party resource. + * `description` - A free text description of the resource. + * `versions` - A list of the versions of the resource. + +The `kind` for a `ThirdPartyResource` takes the form `.`. You are expected to provide a unique kind and domain name in order to avoid conflicts with other `ThirdPartyResource` objects. Kind names will be converted to CamelCase when creating instances of the `ThirdPartyResource`. Hypens in the `kind` are assumed to be word breaks. For instance the kind `camel-case` would be converted to `CamelCase` but `camelcase` would be converted to `Camelcase`. + +Other fields on the `ThirdPartyResource` are treated as custom data fields. These fields can hold arbitrary JSON data and have any structure. + +You can view the full documentation about `ThirdPartyResources` using the `explain` command in kubectl. + +``` +$ kubectl explain thirdpartyresource +``` + +## Creating a ThirdPartyResource + +When you user create a new `ThirdPartyResource`, the Kubernetes API Server reacts by creating a new, namespaced RESTful resource path. For now, non-namespaced objects are not supported. As with existing built-in objects, deleting a namespace deletes all custom objects in that namespace. `ThirdPartyResources` themselves are non-namespaced and are available to all namespaces. + +For example, if a save the following `ThirdPartyResource` to `resource.yaml`: + +```yaml +apiVersion: extensions/v1beta1 +kind: ThirdPartyResource +metadata: + name: cron-tab.stable.example.com +description: "A specification of a Pod to run on a cron style schedule" +versions: +- name: v1 +``` + +And create it: + +```shell +$ kubectl create -f resource.yaml +thirdpartyresource "cron-tab.stable.example.com" created +``` + +Then a new RESTful API endpoint is created at: + +`/apis/stable.example.com/v1/namespaces//crontabs/...` + +This endpoint URL can then be used to create and manage custom objects. + +## Creating Custom Objects + +After the `ThirdPartyResource` object has been created you can create custom objects. Custom objects can contain custom fields. These fields can contain arbitrary JSON. +In the following example, a `cronSpec` and `image` custom fields are set to the custom `CronTab` object. If you save the following YAML to `my-crontab.yaml`: + +```yaml +apiVersion: "stable.example.com/v1" +kind: CronTab +metadata: + name: my-new-cron-object +cronSpec: "* * * * /5" +image: my-awesome-cron-image +``` + +and create it: + +```shell +$ kubectl create -f my-crontab.yaml +crontab "my-new-cron-object" created +``` + +You can then manage our `CronTab` objects using kubectl. Note that resource names are not case-sensitive when using kubectl: + +```shell +$ kubectl get crontab +NAME LABELS DATA +my-new-cron-object {"apiVersion":"stable.example.com/v1","cronSpec":"... +``` + +You can also view the raw JSON data. Here you can see that it contains the custom `cronSpec` and `image` fields from the yaml you used to create it: + +```yaml +$ kubectl get crontab -o json +{ + "kind": "List", + "apiVersion": "v1", + "metadata": {}, + "items": [ + { + "apiVersion": "stable.example.com/v1", + "cronSpec": "* * * * /5", + "image": "my-awesome-cron-image", + "kind": "CronTab", + "metadata": { + "creationTimestamp": "2016-09-29T04:59:00Z", + "name": "my-new-cron-object", + "namespace": "default", + "resourceVersion": "12601503", + "selfLink": "/apis/stable.example.com/v1/namespaces/default/crontabs/my-new-cron-object", + "uid": "6f65e7a3-8601-11e6-a23e-42010af0000c" + } + } + ] +} +``` From eac7ea8f7ecdc5545f0c26aab36dc3fb4e8b1be4 Mon Sep 17 00:00:00 2001 From: Jeff Mendoza Date: Thu, 29 Sep 2016 13:40:12 -0700 Subject: [PATCH 018/688] Remove body template from Create Issue button. We now have a deafult issue template in github, so the one inserted by the Create Issue button is no longer needed. --- _layouts/docwithnav.html | 1 - 1 file changed, 1 deletion(-) diff --git a/_layouts/docwithnav.html b/_layouts/docwithnav.html index 16b1235bf5..2432c5b795 100755 --- a/_layouts/docwithnav.html +++ b/_layouts/docwithnav.html @@ -48,7 +48,6 @@ (function(d,c,j){if(!document.getElementById(j)){var pd=d.createElement(c),s;pd.id=j;pd.src=('https:'==document.location.protocol)?'https://polldaddy.com/js/rating/rating.js':'http://i0.poll.fm/js/rating/rating.js';s=document.getElementsByTagName(c)[0];s.parentNode.insertBefore(pd,s);}}(document,'script','pd-rating-js')); Create Issue Edit This Page {% endif %} From 95e92ad5476d64e09cd1affeb80befeeb7cc2687 Mon Sep 17 00:00:00 2001 From: Jerzy Szczepkowski Date: Fri, 30 Sep 2016 11:06:51 +0200 Subject: [PATCH 019/688] Updated hpa config file to the latest API version. Updated hpa config file to the latest API version. --- .../horizontal-pod-autoscaling/hpa-php-apache.yaml | 9 ++++----- .../user-guide/horizontal-pod-autoscaling/walkthrough.md | 9 ++++----- 2 files changed, 8 insertions(+), 10 deletions(-) diff --git a/docs/user-guide/horizontal-pod-autoscaling/hpa-php-apache.yaml b/docs/user-guide/horizontal-pod-autoscaling/hpa-php-apache.yaml index 72d402743d..7ccdcabafd 100644 --- a/docs/user-guide/horizontal-pod-autoscaling/hpa-php-apache.yaml +++ b/docs/user-guide/horizontal-pod-autoscaling/hpa-php-apache.yaml @@ -1,14 +1,13 @@ -apiVersion: extensions/v1beta1 +apiVersion: autoscaling/v1 kind: HorizontalPodAutoscaler metadata: name: php-apache namespace: default spec: - scaleRef: + scaleTargetRef: + apiVersion: extensions/v1beta1 kind: Deployment name: php-apache - subresource: scale minReplicas: 1 maxReplicas: 10 - cpuUtilization: - targetPercentage: 50 + targetCPUUtilizationPercentage: 50 diff --git a/docs/user-guide/horizontal-pod-autoscaling/walkthrough.md b/docs/user-guide/horizontal-pod-autoscaling/walkthrough.md index d445b854e4..0f288352a0 100644 --- a/docs/user-guide/horizontal-pod-autoscaling/walkthrough.md +++ b/docs/user-guide/horizontal-pod-autoscaling/walkthrough.md @@ -127,20 +127,19 @@ Here CPU utilization dropped to 0, and so HPA autoscaled the number of replicas Instead of using `kubectl autoscale` command we can use the [hpa-php-apache.yaml](/docs/user-guide/horizontal-pod-autoscaling/hpa-php-apache.yaml) file, which looks like this: ```yaml -apiVersion: extensions/v1beta1 +apiVersion: autoscaling/v1 kind: HorizontalPodAutoscaler metadata: name: php-apache namespace: default spec: - scaleRef: + scaleTargetRef: + apiVersion: extensions/v1beta1 kind: Deployment name: php-apache - subresource: scale minReplicas: 1 maxReplicas: 10 - cpuUtilization: - targetPercentage: 50 + targetCPUUtilizationPercentage: 50 ``` We will create the autoscaler by executing the following command: From b316d1acb38e3ceac782b676dc45db0642e7ae80 Mon Sep 17 00:00:00 2001 From: Cyril Jouve Date: Fri, 30 Sep 2016 17:16:34 +0200 Subject: [PATCH 020/688] update resources available for kubeclt get --- docs/user-guide/kubectl-overview.md | 43 +++++++++++++++++------------ 1 file changed, 26 insertions(+), 17 deletions(-) diff --git a/docs/user-guide/kubectl-overview.md b/docs/user-guide/kubectl-overview.md index b0a6c5cc5a..57d670bb89 100644 --- a/docs/user-guide/kubectl-overview.md +++ b/docs/user-guide/kubectl-overview.md @@ -85,25 +85,34 @@ The following table includes a list of all the supported resource types and thei Resource type | Abbreviated alias -------------------- | -------------------- -`componentstatuses` | `cs` -`daemonsets` | `ds` -`deployments` | -`events` | `ev` -`endpoints` | `ep` -`horizontalpodautoscalers` | `hpa` -`ingresses` | `ing` +`clusters` | +`componentstatuses` |`cs` +`configmaps` |`cm` +`daemonsets` |`ds` +`deployments` |`deploy` +`endpoints` |`ep` +`events` |`ev` +`horizontalpodautoscalers` |`hpa` +`ingresses` |`ing` `jobs` | -`limitranges` | `limits` -`nodes` | `no` -`namespaces` | `ns` -`pods` | `po` -`persistentvolumes` | `pv` -`persistentvolumeclaims` | `pvc` -`resourcequotas` | `quota` -`replicationcontrollers` | `rc` +`limitranges` |`limits` +`namespaces` |`ns` +`networkpolicies` | +`nodes` |`no` +`persistentvolumeclaims` |`pvc` +`persistentvolumes` |`pv` +`pods` |`po` +`podsecuritypolicies` |`psp` +`podtemplates` | +`replicasets` |`rs` +`replicationcontrollers` |`rc` +`resourcequotas` |`quota` +`scheduledjobs` | `secrets` | -`serviceaccounts` | -`services` | `svc` +`serviceaccounts` |`sa` +`services` |`svc` +`storageclasses` | +`thirdpartyresources` | ## Output options From d59443b6fbea2717a228c8a013733006799ed00c Mon Sep 17 00:00:00 2001 From: Steven Pousty Date: Fri, 30 Sep 2016 14:44:18 -0700 Subject: [PATCH 021/688] Clarifying the purpose and intended use of a ConfigMap --- docs/user-guide/configmap/index.md | 2 ++ 1 file changed, 2 insertions(+) diff --git a/docs/user-guide/configmap/index.md b/docs/user-guide/configmap/index.md index f37c83f4ac..e6d8686f00 100644 --- a/docs/user-guide/configmap/index.md +++ b/docs/user-guide/configmap/index.md @@ -19,6 +19,8 @@ or used to store configuration data for system components such as controllers. to [Secrets](/docs/user-guide/secrets/), but designed to more conveniently support working with strings that do not contain sensitive information. +Note: ConfigMaps are not intended to act as a replacement for a properties file. ConfigMaps are more intended to act a reference to multipe propertie files. You can think of them as way to represent something similar to the /etc directory and all it's files on a Linux computer. This model for ConfigMaps becomes especially apparent when looking at creating Volumes from ConfigMaps. Each data item in the ConfigMap becomes a new file. + Let's look at a made-up example: ```yaml From a163701fc43497368d61e54364995654220aa20b Mon Sep 17 00:00:00 2001 From: Simen Bekkhus Date: Mon, 3 Oct 2016 10:51:38 +0200 Subject: [PATCH 022/688] Update rolling-updates.md --- docs/user-guide/rolling-updates.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/user-guide/rolling-updates.md b/docs/user-guide/rolling-updates.md index 63d3622c89..c9ba5d3d27 100644 --- a/docs/user-guide/rolling-updates.md +++ b/docs/user-guide/rolling-updates.md @@ -12,7 +12,7 @@ assignees: To update a service without an outage, `kubectl` supports what is called ['rolling update'](/docs/user-guide/kubectl/kubectl_rolling-update), which updates one pod at a time, rather than taking down the entire service at the same time. See the [rolling update design document](https://github.com/kubernetes/kubernetes/blob/{{page.githubbranch}}/docs/design/simple-rolling-update.md) and the [example of rolling update](/docs/user-guide/update-demo/) for more information. Note that `kubectl rolling-update` only supports Replication Controllers. However, if you deploy applications with Replication Controllers, -consider switching them to [Deployments](/docs/user-guide/deployments/). A Deployments is a higher-level controller that automates rolling updates +consider switching them to [Deployments](/docs/user-guide/deployments/). A Deployment is a higher-level controller that automates rolling updates of applications declaratively, and therefore is recommended. If you still want to keep your Replication Controllers and use `kubectl rolling-update`, keep reading: A rolling update applies changes to the configuration of pods being managed by From 485fb3e788572cf39da58d85a86a08bdfc057bc8 Mon Sep 17 00:00:00 2001 From: Jonathan Boulle Date: Mon, 3 Oct 2016 20:27:18 +0200 Subject: [PATCH 023/688] docs/pods: update reference to pets Now that PetSets are implemented we can link there. --- docs/user-guide/pods/index.md | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/docs/user-guide/pods/index.md b/docs/user-guide/pods/index.md index 4c16b66074..b5de192d83 100644 --- a/docs/user-guide/pods/index.md +++ b/docs/user-guide/pods/index.md @@ -150,7 +150,9 @@ Pod is exposed as a primitive in order to facilitate: * clean composition of Kubelet-level functionality with cluster-level functionality — Kubelet is effectively the "pod controller" * high-availability applications, which will expect pods to be replaced in advance of their termination and certainly in advance of deletion, such as in the case of planned evictions, image prefetching, or live pod migration [#3949](http://issue.k8s.io/3949) -The current best practice for pets is to create a replication controller with `replicas` equal to `1` and a corresponding service. If you find this cumbersome, please comment on [issue #260](http://issue.k8s.io/260). +There is new first-class support for pet-like pods with the [PetSet](/docs/user-guide/petset/) feature (currently in alpha). +For prior versions of Kubernetes, best practice for pets is to create a replication controller with `replicas` equal to `1` and a corresponding service. + ## Termination of Pods From c848bf0487da82d80e63e5d5a5f7c3ee6c5650b2 Mon Sep 17 00:00:00 2001 From: Bryan Boreham Date: Tue, 4 Oct 2016 11:55:33 +0100 Subject: [PATCH 024/688] Demo app is now in different namespace Change instructions to show use of 'sock-shop' namespace rather than default. --- docs/getting-started-guides/kubeadm.md | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/docs/getting-started-guides/kubeadm.md b/docs/getting-started-guides/kubeadm.md index 6852438004..86de0652c2 100644 --- a/docs/getting-started-guides/kubeadm.md +++ b/docs/getting-started-guides/kubeadm.md @@ -182,9 +182,9 @@ To learn more about the sample microservices app, see the [GitHub README](https: You can then find out the port that the [NodePort feature of services](/docs/user-guide/services/) allocated for the front-end service by running: - # kubectl describe svc front-end + # kubectl describe svc front-end -n sock-shop Name: front-end - Namespace: default + Namespace: sock-shop Labels: name=front-end Selector: name=front-end Type: NodePort @@ -194,7 +194,7 @@ You can then find out the port that the [NodePort feature of services](/docs/use Endpoints: Session Affinity: None -It takes several minutes to download and start all the containers, watch the output of `kubectl get pods` to see when they're all up and running. +It takes several minutes to download and start all the containers, watch the output of `kubectl get pods -n sock-shop` to see when they're all up and running. Then go to the IP address of your cluster's master node in your browser, and specify the given port. So for example, `http://:`. From bdb7016f41e1466d8c813c8d7f62d1d632113716 Mon Sep 17 00:00:00 2001 From: Jeff Peeler Date: Tue, 4 Oct 2016 16:37:24 -0400 Subject: [PATCH 025/688] Fix incorrect wording with secrets 1) The example given in the section "Using Secrets as Environment Variables" incorrectly stated the secret was using a volume. 2) The commands used to produce secrets in the section "Use-Case: Pods with prod / test credentials" has been modified such that the literal used matches the text for what expected files should be on the filesystem (changed user to username). --- docs/user-guide/secrets/index.md | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/docs/user-guide/secrets/index.md b/docs/user-guide/secrets/index.md index ab8eb9388e..4da56a3cca 100644 --- a/docs/user-guide/secrets/index.md +++ b/docs/user-guide/secrets/index.md @@ -377,7 +377,7 @@ To use a secret in an environment variable in a pod: 1. Modify your Pod definition in each container that you wish to consume the value of a secret key to add an environment variable for each secret key you wish to consume. The environment variable that consumes the secret key should populate the secret's name and key in `env[x].valueFrom.secretKeyRef`. 1. Modify your image and/or command line so that the program looks for values in the specified environment variables -This is an example of a pod that mounts a secret in a volume: +This is an example of a pod that uses secrets from environment variables: ```yaml apiVersion: v1 @@ -543,9 +543,9 @@ credentials. Make the secrets: ```shell -$ kubectl create secret generic prod-db-secret --from-literal=user=produser --from-literal=password=Y4nys7f11 +$ kubectl create secret generic prod-db-secret --from-literal=username=produser --from-literal=password=Y4nys7f11 secret "prod-db-secret" created -$ kubectl create secret generic test-db-secret --from-literal=user=testuser --from-literal=password=iluvtests +$ kubectl create secret generic test-db-secret --from-literal=username=testuser --from-literal=password=iluvtests secret "test-db-secret" created ``` From bdb0eabcbc44e6d62cbc5e5ebec3e8857a28cc4a Mon Sep 17 00:00:00 2001 From: joshrosso Date: Wed, 5 Oct 2016 02:12:29 +0000 Subject: [PATCH 026/688] Correct case used in CoreOS hyperlink in getting-started-guides Minor typo fix to ensure 'CoreOS' case is correct and consistent throughout getting-started-guides. --- docs/getting-started-guides/index.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/getting-started-guides/index.md b/docs/getting-started-guides/index.md index ec5eb98759..9c9a8279bf 100644 --- a/docs/getting-started-guides/index.md +++ b/docs/getting-started-guides/index.md @@ -70,7 +70,7 @@ writing a new solution](https://github.com/kubernetes/kubernetes/tree/{{page.git These solutions are combinations of cloud provider and OS not covered by the above solutions. -- [AWS + coreos](/docs/getting-started-guides/coreos) +- [AWS + CoreOS](/docs/getting-started-guides/coreos) - [GCE + CoreOS](/docs/getting-started-guides/coreos) - [AWS + Ubuntu](/docs/getting-started-guides/juju) - [Joyent + Ubuntu](/docs/getting-started-guides/juju) From ba6747a284c8c6b207505fb7365fca55d8384f9b Mon Sep 17 00:00:00 2001 From: Cyril Jouve Date: Wed, 5 Oct 2016 18:54:58 +0200 Subject: [PATCH 027/688] remove scheduledjobs (alpha) --- docs/user-guide/kubectl-overview.md | 1 - 1 file changed, 1 deletion(-) diff --git a/docs/user-guide/kubectl-overview.md b/docs/user-guide/kubectl-overview.md index 57d670bb89..367aaba102 100644 --- a/docs/user-guide/kubectl-overview.md +++ b/docs/user-guide/kubectl-overview.md @@ -107,7 +107,6 @@ Resource type | Abbreviated alias `replicasets` |`rs` `replicationcontrollers` |`rc` `resourcequotas` |`quota` -`scheduledjobs` | `secrets` | `serviceaccounts` |`sa` `services` |`svc` From 19e61ec1d66d07a8a9a3efbfe85923365ffb57a0 Mon Sep 17 00:00:00 2001 From: Jordan Liggitt Date: Wed, 28 Sep 2016 17:19:08 -0400 Subject: [PATCH 028/688] Describe anonymous access, system:authenticated group --- docs/admin/authentication.md | 27 +++++++++++++++++++++++---- 1 file changed, 23 insertions(+), 4 deletions(-) diff --git a/docs/admin/authentication.md b/docs/admin/authentication.md index 0be8b50db8..a6281d1936 100644 --- a/docs/admin/authentication.md +++ b/docs/admin/authentication.md @@ -25,10 +25,11 @@ manually through API calls. Service accounts are tied to a set of credentials stored as `Secrets`, which are mounted into pods allowing in cluster processes to talk to the Kubernetes API. -All API requests are tied to either a normal user or a service account. This -means every process inside or outside the cluster, from a human user typing -`kubectl` on a workstation, to `kubelets` on nodes, to members of the control -plane, must authenticate when making requests to the the API server. +API requests are tied to either a normal user or a service account, or are treated +as anonymous requests. This means every process inside or outside the cluster, from +a human user typing `kubectl` on a workstation, to `kubelets` on nodes, to members +of the control plane, must authenticate when making requests to the the API server, +or be treated as an anonymous user. ## Authentication strategies @@ -54,6 +55,8 @@ When multiple are enabled, the first authenticator module to successfully authenticate the request short-circuits evaluation. The API server does not guarantee the order authenticators run in. +The `system:authenticated` group is included in the list of groups for all authenticated users. + ### X509 Client Certs Client certificate authentication is enabled by passing the `--client-ca-file=SOMEFILE` @@ -363,6 +366,22 @@ Please refer to the [discussion](https://github.com/kubernetes/kubernetes/pull/1 [blueprint](https://github.com/kubernetes/kubernetes/issues/11626) and [proposed changes](https://github.com/kubernetes/kubernetes/pull/25536) for more details. +## Anonymous requests + +Anonymous access is enabled by default, and can be disabled by passing `--anonymous-auth=false` +option to the API server during startup. + +When enabled, requests that are not rejected by other configured authentication methods are +treated as anonymous requests, and given a username of `system:anonymous` and a group of +`system:unauthenticated`. + +For example, on a server with token authentication configured, and anonymous access enabled, +a request providing an invalid bearer token would receive a `401 Unauthorized` error. +A request providing no bearer token would be treated as an anonymous request. + +If you rely on authentication alone to authorize access, either change to use an +authorization mode other than `AlwaysAllow`, or set `--anonymous-auth=false`. + ## Plugin Development We plan for the Kubernetes API server to issue tokens after the user has been From a1d122f85b61bfb98214dcbb024576c67e65d626 Mon Sep 17 00:00:00 2001 From: Theotime Leveque Date: Wed, 5 Oct 2016 15:37:47 -0400 Subject: [PATCH 029/688] Fix kubectl 404 --- docs/user-guide/accessing-the-cluster.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/user-guide/accessing-the-cluster.md b/docs/user-guide/accessing-the-cluster.md index c42adb4c6e..6f78ab5293 100644 --- a/docs/user-guide/accessing-the-cluster.md +++ b/docs/user-guide/accessing-the-cluster.md @@ -27,7 +27,7 @@ $ kubectl config view ``` Many of the [examples](https://github.com/kubernetes/kubernetes/tree/{{page.githubbranch}}/examples/) provide an introduction to using -kubectl and complete documentation is found in the [kubectl manual](/docs/user-guide/kubectl/kubectl). +kubectl and complete documentation is found in the [kubectl manual](/docs/user-guide/kubectl/index). ### Directly accessing the REST API From 2f634cb8a604598914a0a3e607ba8e0f11f28eac Mon Sep 17 00:00:00 2001 From: Janet Kuo Date: Mon, 29 Aug 2016 11:11:31 -0700 Subject: [PATCH 030/688] Add docs for 3rd-party tools --- docs/user-guide/third-party-tools.md | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 docs/user-guide/third-party-tools.md diff --git a/docs/user-guide/third-party-tools.md b/docs/user-guide/third-party-tools.md new file mode 100644 index 0000000000..dd54a94181 --- /dev/null +++ b/docs/user-guide/third-party-tools.md @@ -0,0 +1,27 @@ +--- +assignees: +- janetkuo + +--- + +* TOC +{:toc} + +## Helm + +[Kubernetes Helm](https://github.com/kubernetes/helm) is a tool for managing packages of pre-configured +Kubernetes resources, aka Kubernetes charts. + +Use Helm to: + +* Find and use popular software packaged as Kubernetes charts +* Share your own applications as Kubernetes charts +* Create reproducible builds of your Kubernetes applications +* Intelligently manage your Kubernetes manifest files +* Manage releases of Helm packages + +## Kompose + +[`kompose`](https://github.com/skippbox/kompose) is a tool to help users familiar with `docker-compose` +move to Kubernetes. It takes a Docker Compose file and translates it into Kubernetes objects. `kompose` +is a convenient tool to go from local Docker development to managing your application with Kubernetes. From bfc93d17796185adf5623948d76a74f2a1cc18c3 Mon Sep 17 00:00:00 2001 From: Janet Kuo Date: Tue, 27 Sep 2016 16:06:18 -0700 Subject: [PATCH 031/688] Add Tools top nav and move 3rd party doc under it --- _data/globals.yml | 1 + _data/tools.yml | 6 ++++++ _layouts/docwithnav.html | 1 + docs/tools/index.md | 9 +++++++++ docs/{user-guide => tools}/third-party-tools.md | 0 5 files changed, 17 insertions(+) create mode 100644 _data/tools.yml create mode 100644 docs/tools/index.md rename docs/{user-guide => tools}/third-party-tools.md (100%) diff --git a/_data/globals.yml b/_data/globals.yml index c83dae26dd..73978ea750 100644 --- a/_data/globals.yml +++ b/_data/globals.yml @@ -4,5 +4,6 @@ tocs: - tasks - concepts - reference +- tools - samples - support diff --git a/_data/tools.yml b/_data/tools.yml new file mode 100644 index 0000000000..a6c03cdf6f --- /dev/null +++ b/_data/tools.yml @@ -0,0 +1,6 @@ +bigheader: "Tools" +toc: +- title: Tools + path: /docs/tools/ +- title: Third-Party Tools + path: /docs/tools/third-party-tools/ diff --git a/_layouts/docwithnav.html b/_layouts/docwithnav.html index 2432c5b795..c2f74c1bb4 100755 --- a/_layouts/docwithnav.html +++ b/_layouts/docwithnav.html @@ -16,6 +16,7 @@
  • TASKS
  • CONCEPTS
  • REFERENCE
    • +
  • TOOLS
  • SAMPLES
  • SUPPORT
    • diff --git a/docs/tools/index.md b/docs/tools/index.md new file mode 100644 index 0000000000..9f4e57ec76 --- /dev/null +++ b/docs/tools/index.md @@ -0,0 +1,9 @@ +--- +--- + +The Tools section of the Kubernetes documentation is a work in progress + +#### Third-Party Tools + +* [Recommended third-party tools, including Helm and Kompose](/docs/tasks/third-party-tools) + diff --git a/docs/user-guide/third-party-tools.md b/docs/tools/third-party-tools.md similarity index 100% rename from docs/user-guide/third-party-tools.md rename to docs/tools/third-party-tools.md From e44f4a2d5c26e0998e9ab42e86b33f9561df0efc Mon Sep 17 00:00:00 2001 From: Janet Kuo Date: Wed, 5 Oct 2016 14:24:14 -0700 Subject: [PATCH 032/688] Remove third-party page and make one page for all tools --- _data/tools.yml | 2 -- docs/tools/index.md | 37 ++++++++++++++++++++++++++++++--- docs/tools/third-party-tools.md | 27 ------------------------ 3 files changed, 34 insertions(+), 32 deletions(-) delete mode 100644 docs/tools/third-party-tools.md diff --git a/_data/tools.yml b/_data/tools.yml index a6c03cdf6f..8993e091bb 100644 --- a/_data/tools.yml +++ b/_data/tools.yml @@ -2,5 +2,3 @@ bigheader: "Tools" toc: - title: Tools path: /docs/tools/ -- title: Third-Party Tools - path: /docs/tools/third-party-tools/ diff --git a/docs/tools/index.md b/docs/tools/index.md index 9f4e57ec76..31d5fe985e 100644 --- a/docs/tools/index.md +++ b/docs/tools/index.md @@ -1,9 +1,40 @@ --- +assignees: +- janetkuo + --- -The Tools section of the Kubernetes documentation is a work in progress +* TOC +{:toc} -#### Third-Party Tools +## Native Tools -* [Recommended third-party tools, including Helm and Kompose](/docs/tasks/third-party-tools) +### Kubectl +[`kubectl`](docs/user-guide/kubectl/) is the command line tool for Kubernetes. It controls the Kubernetes cluster manager. + +### Dashboard + +[Dashboard](docs/user-guide/ui/), the web-based user interface of Kubernetes, allows you to deploy containerized applications +to a Kubernetes cluster, troubleshoot them, and manage the cluster and its resources itself. + +## Third-Party Tools + +### Helm + +[Kubernetes Helm](https://github.com/kubernetes/helm) is a tool for managing packages of pre-configured +Kubernetes resources, aka Kubernetes charts. + +Use Helm to: + +* Find and use popular software packaged as Kubernetes charts +* Share your own applications as Kubernetes charts +* Create reproducible builds of your Kubernetes applications +* Intelligently manage your Kubernetes manifest files +* Manage releases of Helm packages + +### Kompose + +[`kompose`](https://github.com/skippbox/kompose) is a tool to help users familiar with `docker-compose` +move to Kubernetes. It takes a Docker Compose file and translates it into Kubernetes objects. `kompose` +is a convenient tool to go from local Docker development to managing your application with Kubernetes. diff --git a/docs/tools/third-party-tools.md b/docs/tools/third-party-tools.md deleted file mode 100644 index dd54a94181..0000000000 --- a/docs/tools/third-party-tools.md +++ /dev/null @@ -1,27 +0,0 @@ ---- -assignees: -- janetkuo - ---- - -* TOC -{:toc} - -## Helm - -[Kubernetes Helm](https://github.com/kubernetes/helm) is a tool for managing packages of pre-configured -Kubernetes resources, aka Kubernetes charts. - -Use Helm to: - -* Find and use popular software packaged as Kubernetes charts -* Share your own applications as Kubernetes charts -* Create reproducible builds of your Kubernetes applications -* Intelligently manage your Kubernetes manifest files -* Manage releases of Helm packages - -## Kompose - -[`kompose`](https://github.com/skippbox/kompose) is a tool to help users familiar with `docker-compose` -move to Kubernetes. It takes a Docker Compose file and translates it into Kubernetes objects. `kompose` -is a convenient tool to go from local Docker development to managing your application with Kubernetes. From fb84c95af60f015318555bdcea7f1c213862cc9f Mon Sep 17 00:00:00 2001 From: steveperry-53 Date: Tue, 4 Oct 2016 19:17:14 -0700 Subject: [PATCH 033/688] Change name to Kubernetes Basics. Compress introduction to each step. --- _data/tutorials.yml | 38 +++++------- .../getting-started/create-cluster.html | 47 --------------- .../tutorials/getting-started/deploy-app.html | 52 ----------------- .../getting-started/explore-app.html | 53 ----------------- .../tutorials/getting-started/expose-app.html | 54 ------------------ docs/tutorials/getting-started/scale-app.html | 52 ----------------- .../tutorials/getting-started/update-app.html | 54 ------------------ .../cluster-interactive.html | 10 +--- .../cluster-intro.html | 22 +++---- .../deploy-interactive.html | 9 +-- .../deploy-intro.html | 21 +++---- .../explore-interactive.html | 9 +-- .../explore-intro.html | 27 ++++----- .../expose-interactive.html | 10 +--- .../expose-intro.html | 25 ++++---- .../index.html | 14 ++--- .../public/css/styles.css | 0 .../public/images/badge-01.svg | 0 .../public/images/badge-02.svg | 0 .../public/images/badge-03.svg | 0 .../public/images/badge-04.svg | 0 .../public/images/badge-05.svg | 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Create a Cluster section: - - title: Creating a Cluster - path: /docs/tutorials/getting-started/create-cluster/ - title: Using Minikube to Create a Cluster - path: /docs/tutorials/getting-started/cluster-intro/ + path: /docs/tutorials/kubernetes-basics/cluster-intro/ - title: Interactive Tutorial - Creating a Cluster - path: /docs/tutorials/getting-started/cluster-interactive/ + path: /docs/tutorials/kubernetes-basics/cluster-interactive/ - title: 2. Deploy an App section: - - title: Deploying an App - path: /docs/tutorials/getting-started/deploy-app/ - title: Using kubectl to Create a Deployment - path: /docs/tutorials/getting-started/deploy-intro/ + path: /docs/tutorials/kubernetes-basics/deploy-intro/ - title: Interactive Tutorial - Deploying an App - path: /docs/tutorials/getting-started/deploy-interactive/ + path: /docs/tutorials/kubernetes-basics/deploy-interactive/ - title: 3. Explore Your App section: - - title: Exploring Your App - path: /docs/tutorials/getting-started/explore-app/ - title: Viewing Pods and Nodes - path: /docs/tutorials/getting-started/explore-intro/ + path: /docs/tutorials/kubernetes-basics/explore-intro/ - title: Interactive Tutorial - Exploring Your App - path: /docs/tutorials/getting-started/explore-interactive/ + path: /docs/tutorials/kubernetes-basics/explore-interactive/ - title: 4. Expose Your App Publicly section: - - title: Exposing Your App Publicly - path: /docs/tutorials/getting-started/expose-app/ - title: Using a Service to Expose Your App - path: /docs/tutorials/getting-started/expose-intro/ + path: /docs/tutorials/kubernetes-basics/expose-intro/ - title: Interactive Tutorial - Exposing Your App - path: /docs/tutorials/getting-started/expose-interactive/ + path: /docs/tutorials/kubernetes-basics/expose-interactive/ - title: 5. Scale Your App section: - - title: Scaling Your App - path: /docs/tutorials/getting-started/scale-app/ - title: Running Multiple Instances of Your App - path: /docs/tutorials/getting-started/scale-intro/ + path: /docs/tutorials/kubernetes-basics/scale-intro/ - title: Interactive Tutorial - Scaling Your App - path: /docs/tutorials/getting-started/scale-interactive/ + path: /docs/tutorials/kubernetes-basics/scale-interactive/ - title: 6. Update Your App section: - - title: Updating Your App - path: /docs/tutorials/getting-started/update-app/ - title: Performing a Rolling Update - path: /docs/tutorials/getting-started/update-intro/ + path: /docs/tutorials/kubernetes-basics/update-intro/ - title: Interactive Tutorial - Updating Your App - path: /docs/tutorials/getting-started/update-interactive/ + path: /docs/tutorials/kubernetes-basics/update-interactive/ - title: Stateless Applications section: - title: Running a Stateless Application Using a Deployment diff --git a/docs/tutorials/getting-started/create-cluster.html b/docs/tutorials/getting-started/create-cluster.html deleted file mode 100644 index 42c22f90e8..0000000000 --- a/docs/tutorials/getting-started/create-cluster.html +++ /dev/null @@ -1,47 +0,0 @@ ---- ---- - - - - - - - - - -
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    • Performing Rolling Updates with Kubectl
      • -
    -

    -
    -
    -
    -

    What you need to know first

    -

    - What are Deployments
    - What is Scaling -

    -
    -
    -
    - -
    -
    - Start Module 6 › -
    -
    - -
    - - - -
    - - - diff --git a/docs/tutorials/getting-started/cluster-interactive.html b/docs/tutorials/kubernetes-basics/cluster-interactive.html similarity index 60% rename from docs/tutorials/getting-started/cluster-interactive.html rename to docs/tutorials/kubernetes-basics/cluster-interactive.html index 8f74bab8b5..8b07b331c7 100644 --- a/docs/tutorials/getting-started/cluster-interactive.html +++ b/docs/tutorials/kubernetes-basics/cluster-interactive.html @@ -7,19 +7,13 @@ - +
    -
    -
    - ‹ Back -
    -
    -
    To interact with the Terminal, please use the desktop/tablet version @@ -28,7 +22,7 @@
    - Continue to Module 2› + Continue to Module 2›
    diff --git a/docs/tutorials/getting-started/cluster-intro.html b/docs/tutorials/kubernetes-basics/cluster-intro.html similarity index 87% rename from docs/tutorials/getting-started/cluster-intro.html rename to docs/tutorials/kubernetes-basics/cluster-intro.html index a3dafff437..b5886827a0 100644 --- a/docs/tutorials/getting-started/cluster-intro.html +++ b/docs/tutorials/kubernetes-basics/cluster-intro.html @@ -7,23 +7,25 @@ - +
    -
    - ‹ Back + +
    +

    Objectives

    +
      +
    • Learn what a Kubernetes cluster is.
      • +
    • Learn what Minikube is.
      • +
    • Start a Kubernetes cluster using an online terminal.
      • +
    -
    -
    -
    - -
    +

    Kubernetes Clusters

    Kubernetes coordinates a highly available cluster of computers that are connected to work as a single unit. The abstractions in Kubernetes allow you to deploy containerized applications to a cluster without tying them specifically to individual machines. To make use of this new model of deployment, applications need to be packaged in a way that decouples them from individual hosts: they need to be containerized. Containerized applications are more flexible and available than in past deployment models, where applications were installed directly onto specific machines as packages deeply integrated into the host. Kubernetes automates the distribution and scheduling of application containers across a cluster in a more efficient way. Kubernetes is an open-source platform and is production-ready.

    @@ -60,7 +62,7 @@
    -

    +


    @@ -92,7 +94,7 @@
    - Start Interactive Tutorial › + Start Interactive Tutorial ›
    diff --git a/docs/tutorials/getting-started/deploy-interactive.html b/docs/tutorials/kubernetes-basics/deploy-interactive.html similarity index 61% rename from docs/tutorials/getting-started/deploy-interactive.html rename to docs/tutorials/kubernetes-basics/deploy-interactive.html index 6525b21c4c..73d7e9dfc3 100644 --- a/docs/tutorials/getting-started/deploy-interactive.html +++ b/docs/tutorials/kubernetes-basics/deploy-interactive.html @@ -7,18 +7,13 @@ - +
    -
    -
    - ‹ Back -
    -

    @@ -31,7 +26,7 @@
    - Continue to Module 3› + Continue to Module 3›
    diff --git a/docs/tutorials/getting-started/deploy-intro.html b/docs/tutorials/kubernetes-basics/deploy-intro.html similarity index 85% rename from docs/tutorials/getting-started/deploy-intro.html rename to docs/tutorials/kubernetes-basics/deploy-intro.html index cd72f424b8..9fafe6012e 100644 --- a/docs/tutorials/getting-started/deploy-intro.html +++ b/docs/tutorials/kubernetes-basics/deploy-intro.html @@ -7,23 +7,24 @@ - +
    -
    - ‹ Back + +
    +

    Objectives

    +
      +
    • Learn about application Deployments.
      • +
    • Deploy your first app on Kubernetes with kubectl.
      • +
    -
    -
    -
    - -
    +

    Kubernetes Deployments

    Once you have a running Kubernetes cluster, you can deploy your containerized applications on top of it. To do so, you create a Kubernetes Deployment. The Deployment is responsible for creating and updating instances of your application. Once you've created a Deployment, the Kubernetes master schedules the application instances that the Deployment creates onto individual Nodes in the cluster.

    @@ -59,7 +60,7 @@
    -

    +


    @@ -94,7 +95,7 @@
    - Start Interactive Tutorial › + Start Interactive Tutorial ›
    diff --git a/docs/tutorials/getting-started/explore-interactive.html b/docs/tutorials/kubernetes-basics/explore-interactive.html similarity index 61% rename from docs/tutorials/getting-started/explore-interactive.html rename to docs/tutorials/kubernetes-basics/explore-interactive.html index 5b82635398..9b16d4bca4 100644 --- a/docs/tutorials/getting-started/explore-interactive.html +++ b/docs/tutorials/kubernetes-basics/explore-interactive.html @@ -7,18 +7,13 @@ - +
    -
    -
    - ‹ Back -
    -

    @@ -31,7 +26,7 @@
    - Continue to Module 4› + Continue to Module 4›
    diff --git a/docs/tutorials/getting-started/explore-intro.html b/docs/tutorials/kubernetes-basics/explore-intro.html similarity index 82% rename from docs/tutorials/getting-started/explore-intro.html rename to docs/tutorials/kubernetes-basics/explore-intro.html index df9cd7c305..4789838827 100644 --- a/docs/tutorials/getting-started/explore-intro.html +++ b/docs/tutorials/kubernetes-basics/explore-intro.html @@ -7,7 +7,7 @@ - +
    @@ -15,18 +15,19 @@
    -
    - ‹ Back + +
    +

    Objectives

    +
      +
    • Learn about Kubernetes Pods.
      • +
    • Learn about Kubernetes Nodes.
      • +
    • Troubleshoot deployed applications.
      • +
    -
    -
    -
    - -
    -

    Pods

    -

    When you created a Deployment in Module 2, Kubernetes created a Pod to host your application instance. A Pod is Kubernetes abstraction that represents a group of one or more application containers (such as Docker or rkt), and some shared resources for those containers. Those resources include:

    +

    Kubernetes Pods

    +

    When you created a Deployment in Module 2, Kubernetes created a Pod to host your application instance. A Pod is Kubernetes abstraction that represents a group of one or more application containers (such as Docker or rkt), and some shared resources for those containers. Those resources include:

    • Shared storage, as Volumes
    • Networking, as a unique cluster IP address
      • @@ -63,7 +64,7 @@
      -

      +


      @@ -97,7 +98,7 @@
      -

      +


      @@ -128,7 +129,7 @@
      - Start Interactive Tutorial › + Start Interactive Tutorial ›
      diff --git a/docs/tutorials/getting-started/expose-interactive.html b/docs/tutorials/kubernetes-basics/expose-interactive.html similarity index 61% rename from docs/tutorials/getting-started/expose-interactive.html rename to docs/tutorials/kubernetes-basics/expose-interactive.html index 04d3bc3f53..3288807588 100644 --- a/docs/tutorials/getting-started/expose-interactive.html +++ b/docs/tutorials/kubernetes-basics/expose-interactive.html @@ -7,19 +7,13 @@ - +
      -
      -
      - ‹ Back -
      -
      -
      To interact with the Terminal, please use the desktop/tablet version @@ -29,7 +23,7 @@
      - Continue to Module 5› + Continue to Module 5›
      diff --git a/docs/tutorials/getting-started/expose-intro.html b/docs/tutorials/kubernetes-basics/expose-intro.html similarity index 86% rename from docs/tutorials/getting-started/expose-intro.html rename to docs/tutorials/kubernetes-basics/expose-intro.html index 2178a7dd25..81c1981bf4 100644 --- a/docs/tutorials/getting-started/expose-intro.html +++ b/docs/tutorials/kubernetes-basics/expose-intro.html @@ -7,23 +7,26 @@ - +
      -
      - ‹ Back + +
      +

      Objectives

      +
        +
      • Learn about Kubernetes Services.
        • +
      • Learn about Kubernetes Labels.
        • +
      • Expose an application outside Kubernetes.
        • +
      -
      -
      -
      - -
      +

      Kubernetes Services

      +

      While Pods do have their own unique IP across the cluster, those IP’s are not exposed outside Kubernetes. Taking into account that over time Pods may be terminated, deleted or replaced by other Pods, we need a way to let other Pods and applications automatically discover each other. Kubernetes addresses this by grouping Pods in Services. A Kubernetes Service is an abstraction layer which defines a logical set of Pods and enables external traffic exposure, load balancing and service discovery for those Pods.

      This abstraction will allow us to expose Pods to traffic originating from outside the cluster. Services have their own unique cluster-private IP address and expose a port to receive traffic. If you choose to expose the service outside the cluster, the options are:

      @@ -58,7 +61,7 @@
      -

      +


      @@ -106,7 +109,7 @@
      -

      +


      @@ -122,7 +125,7 @@
      - Start Interactive Tutorial › + Start Interactive Tutorial ›
      diff --git a/docs/tutorials/getting-started/index.html b/docs/tutorials/kubernetes-basics/index.html similarity index 75% rename from docs/tutorials/getting-started/index.html rename to docs/tutorials/kubernetes-basics/index.html index 932bd79363..0f6a435626 100644 --- a/docs/tutorials/getting-started/index.html +++ b/docs/tutorials/kubernetes-basics/index.html @@ -34,7 +34,7 @@
      - +
      1. Create a Kubernetes cluster
      @@ -42,7 +42,7 @@
      - +
      2. Deploy an app
      @@ -50,7 +50,7 @@
      - +
      3. Explore your app
      @@ -58,7 +58,7 @@
      - +
      4. Expose your app publicly
      @@ -66,7 +66,7 @@
      - +
      5. Scale up your app
      @@ -74,7 +74,7 @@
      - +
      6. Update your app
      @@ -85,7 +85,7 @@
      - Start the tutorial› + Start the tutorial›
      diff --git a/docs/tutorials/getting-started/public/css/styles.css b/docs/tutorials/kubernetes-basics/public/css/styles.css similarity index 100% rename from docs/tutorials/getting-started/public/css/styles.css rename to docs/tutorials/kubernetes-basics/public/css/styles.css diff --git a/docs/tutorials/getting-started/public/images/badge-01.svg b/docs/tutorials/kubernetes-basics/public/images/badge-01.svg similarity index 100% rename from docs/tutorials/getting-started/public/images/badge-01.svg rename to docs/tutorials/kubernetes-basics/public/images/badge-01.svg diff --git a/docs/tutorials/getting-started/public/images/badge-02.svg b/docs/tutorials/kubernetes-basics/public/images/badge-02.svg similarity index 100% rename from docs/tutorials/getting-started/public/images/badge-02.svg rename to docs/tutorials/kubernetes-basics/public/images/badge-02.svg diff --git a/docs/tutorials/getting-started/public/images/badge-03.svg 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index 9ab0d10557..d41b6cb36b 100644 --- a/docs/tutorials/getting-started/scale-interactive.html +++ b/docs/tutorials/kubernetes-basics/scale-interactive.html @@ -7,19 +7,13 @@ - +
      -
      -
      - ‹ Back -
      -
      -
      To interact with the Terminal, please use the desktop/tablet version @@ -29,7 +23,7 @@
      - Continue to Module 6› + Continue to Module 6›
      diff --git a/docs/tutorials/getting-started/scale-intro.html b/docs/tutorials/kubernetes-basics/scale-intro.html similarity index 83% rename from docs/tutorials/getting-started/scale-intro.html rename to docs/tutorials/kubernetes-basics/scale-intro.html index b06e574c7e..b4b5d47c91 100644 --- a/docs/tutorials/getting-started/scale-intro.html +++ b/docs/tutorials/kubernetes-basics/scale-intro.html @@ -7,23 +7,24 @@ - +
      -
      - ‹ Back + +
      +

      Objectives

      +
        +
      • Scale an app using kubectl.
        • +
      -
      -
      -
      - -
      +

      Scaling an application

      +

      In the previous modules we created a Deployment, and then exposed it publicly via a Service . The Deployment created only one Pod for running our application. When traffic increases, we will need to scale the application to keep up with user demand.

      Scaling is accomplished by changing the number of replicas in a Deployment

      @@ -59,11 +60,11 @@
      - +
      - +
      @@ -106,7 +107,7 @@
      - Start Interactive Tutorial › + Start Interactive Tutorial ›
      diff --git a/docs/tutorials/getting-started/update-interactive.html b/docs/tutorials/kubernetes-basics/update-interactive.html similarity index 68% rename from docs/tutorials/getting-started/update-interactive.html rename to docs/tutorials/kubernetes-basics/update-interactive.html index 5b399f06dc..a1399aeadb 100644 --- a/docs/tutorials/getting-started/update-interactive.html +++ b/docs/tutorials/kubernetes-basics/update-interactive.html @@ -7,19 +7,13 @@ - +
      -
      -
      - ‹ Back -
      -
      -
      To interact with the Terminal, please use the desktop/tablet version diff --git a/docs/tutorials/getting-started/update-intro.html b/docs/tutorials/kubernetes-basics/update-intro.html similarity index 81% rename from docs/tutorials/getting-started/update-intro.html rename to docs/tutorials/kubernetes-basics/update-intro.html index c6f65cfa58..b7867f3b1f 100644 --- a/docs/tutorials/getting-started/update-intro.html +++ b/docs/tutorials/kubernetes-basics/update-intro.html @@ -7,23 +7,24 @@ - +
      -
      - ‹ Back + +
      +

      Objectives

      +
        +
      • Perform a rolling update using kubectl.
        • +
      -
      -
      -
      - -
      +

      Updating an application

      +

      Users expect applications to be available all the time and developers are expected to deploy new versions of them several times a day. In Kubernetes this is done with rolling updates. Rolling updates allows Deployments to occur with zero downtime by incrementally updating Pods instances with new ones. The new Pods will be scheduled on Nodes with available resources.

      In the previous module we scaled our application to run multiple instances. This is a requirement for performing updates without affecting application availability. By default, the maximum number of Pods that can be unavailable during the update and the maximum number of new Pods that can be created, is one. Both options can be configured to either numbers or percentages (of Pods). @@ -61,19 +62,19 @@

      - +
      - +
      - +
      - +
      @@ -121,7 +122,7 @@
      - Start Interactive Tutorial › + Start Interactive Tutorial ›
      From beebb7d429744e4fa2dca7f4505177865e7b8a9c Mon Sep 17 00:00:00 2001 From: Janet Kuo Date: Wed, 5 Oct 2016 18:01:52 -0700 Subject: [PATCH 034/688] Fix 404 in tools --- docs/tools/index.md | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/docs/tools/index.md b/docs/tools/index.md index 31d5fe985e..37cc5bc54b 100644 --- a/docs/tools/index.md +++ b/docs/tools/index.md @@ -11,11 +11,11 @@ assignees: ### Kubectl -[`kubectl`](docs/user-guide/kubectl/) is the command line tool for Kubernetes. It controls the Kubernetes cluster manager. +[`kubectl`](/docs/user-guide/kubectl/) is the command line tool for Kubernetes. It controls the Kubernetes cluster manager. ### Dashboard -[Dashboard](docs/user-guide/ui/), the web-based user interface of Kubernetes, allows you to deploy containerized applications +[Dashboard](/docs/user-guide/ui/), the web-based user interface of Kubernetes, allows you to deploy containerized applications to a Kubernetes cluster, troubleshoot them, and manage the cluster and its resources itself. ## Third-Party Tools From e857d466cbea3a02a452179901cb1bbe8b0688b0 Mon Sep 17 00:00:00 2001 From: Anirudh Ramanathan Date: Wed, 5 Oct 2016 18:44:15 -0700 Subject: [PATCH 035/688] Add example for pod using emptyDir --- docs/user-guide/volumes.md | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/docs/user-guide/volumes.md b/docs/user-guide/volumes.md index e33bd3e018..463a34aeae 100644 --- a/docs/user-guide/volumes.md +++ b/docs/user-guide/volumes.md @@ -108,6 +108,25 @@ While tmpfs is very fast, be aware that unlike disks, tmpfs is cleared on machine reboot and any files you write will count against your container's memory limit. +#### Example pod + +```yaml +apiVersion: v1 +kind: Pod +metadata: + name: test-pd +spec: + containers: + - image: gcr.io/google_containers/test-webserver + name: test-container + volumeMounts: + - mountPath: /cache + name: cache-volume + volumes: + - name: cache-volume + emptyDir: {} +``` + ### hostPath A `hostPath` volume mounts a file or directory from the host node's filesystem From deae72a03e7dca6e4a969055eff2d7b1778c8b49 Mon Sep 17 00:00:00 2001 From: Maciej Szulik Date: Fri, 23 Sep 2016 14:57:08 +0200 Subject: [PATCH 036/688] Add generators section in kubectl conventions --- docs/user-guide/kubectl-conventions.md | 46 +++++++++++++++++++++++--- 1 file changed, 42 insertions(+), 4 deletions(-) diff --git a/docs/user-guide/kubectl-conventions.md b/docs/user-guide/kubectl-conventions.md index f4398362da..a22973f16f 100644 --- a/docs/user-guide/kubectl-conventions.md +++ b/docs/user-guide/kubectl-conventions.md @@ -8,11 +8,11 @@ assignees: * TOC {:toc} -## Using `kubectl` in Reusable Scripts +## Using `kubectl` in Reusable Scripts If you need stable output in a script, you should: -* Request one of the machine-oriented output forms, such as `-o name`, `-o json`, `-o yaml`, `-o go-template`, or `-o jsonpath` +* Request one of the machine-oriented output forms, such as `-o name`, `-o json`, `-o yaml`, `-o go-template`, or `-o jsonpath` * Specify `--output-version`, since those output forms (other than `-o name`) output the resource using a particular API version * Specify `--generator` to pin to a specific behavior forever, if using generator-based commands (such as `kubectl run` or `kubectl expose`) * Don't rely on context, preferences, or other implicit state @@ -27,8 +27,46 @@ In order for `kubectl run` to satisfy infrastructure as code: * If the image is lightly parameterized, capture the parameters in a checked-in script, or at least use `--record`, to annotate the created objects with the command line. * If the image is heavily parameterized, definitely check in the script. * If features are needed that are not expressible via `kubectl run` flags, switch to configuration files checked into source control. -* Pin to a specific generator version, such as `kubectl run --generator=deployment/v1beta1` +* Pin to a specific [generator](#generators) version, such as `kubectl run --generator=deployment/v1beta1` + +#### Generators + +`kubectl run` allows you to generate the following resources (using `--generator` flag): + +* Pod - use `run-pod/v1`. +* Replication controller - use `run/v1`. +* Deployment - use `deployment/v1beta1`. +* Job (using `extension/v1beta1` endpoint) - use `job/v1beta1`. +* Job - use `job/v1`. +* ScheduledJob - use `scheduledjob/v2alpha1`. + +Additionally, if you didn't specify a generator flag, other flags will suggest using +a specific generator. Below table shows which flags force using specific generators, +depending on your cluster version: + +| Generated Resource | Cluster v1.4 | Cluster v1.3 | Cluster v1.2 | Cluster v1.1 and eariler | +|:----------------------:|-----------------------|-----------------------|--------------------------------------------|--------------------------------------------| +| Pod | `--restart=Never` | `--restart=Never` | `--generator=run-pod/v1` | `--restart=OnFailure` OR `--restart=Never` | +| Replication Controller | `--generator=run/v1` | `--generator=run/v1` | `--generator=run/v1` | `--restart=Always` | +| Deployment | `--restart=Always` | `--restart=Always` | `--restart=Always` | N/A | +| Job | `--restart=OnFailure` | `--restart=OnFailure` | `--restart=OnFailure` OR `--restart=Never` | N/A | +| Scheduled Job | `--schedule=` | N/A | N/A | N/A | + +Note that these flags will use a default generator only when you have not specified +any flag. This also means that combining `--generator` with other flags won't +change the generator you specified. For example, in a 1.4 cluster, if you specify +`--restart=Always`, a Deployment will be created; if you specify `--restart=Always` +and `--generator=run/v1`, a Replication Controller will be created instead. +This becomes handy if you want to pin to a specific behavior with the generator, +even when the defaulted generator is changed in the future. + +Finally, the order in which flags set the generator is: schedule flag has the highest +priority, then restart policy and finally the generator itself. + +If in doubt about the final resource being created, you can always use `--dry-run` +flag, which will provide the object to be submitted to the cluster. + ### `kubectl apply` -* To use `kubectl apply` to update resources, always create resources initially with `kubectl apply` or with `--save-config`. See [managing resources with kubectl apply](/docs/user-guide/managing-deployments/#kubectl-apply) for the reason behind it. +* To use `kubectl apply` to update resources, always create resources initially with `kubectl apply` or with `--save-config`. See [managing resources with kubectl apply](/docs/user-guide/managing-deployments/#kubectl-apply) for the reason behind it. From 1a17ab377231582ed0b3aa0a0d6f6008a133cf23 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=C5=81ukasz=20Ole=C5=9B?= Date: Thu, 6 Oct 2016 11:40:40 +0200 Subject: [PATCH 037/688] Update kubectl address It fixes kubernetes/kubernetes#33864 --- docs/user-guide/kubectl-overview.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/user-guide/kubectl-overview.md b/docs/user-guide/kubectl-overview.md index 367aaba102..81f171a445 100644 --- a/docs/user-guide/kubectl-overview.md +++ b/docs/user-guide/kubectl-overview.md @@ -5,7 +5,7 @@ assignees: --- -Use this overview of the `kubectl` command line interface to help you start running commands against Kubernetes clusters. This overview quickly covers `kubectl` syntax, describes the command operations, and provides common examples. For details about each command, including all the supported flags and subcommands, see the [kubectl](/docs/user-guide/kubectl/kubectl) reference documentation. +Use this overview of the `kubectl` command line interface to help you start running commands against Kubernetes clusters. This overview quickly covers `kubectl` syntax, describes the command operations, and provides common examples. For details about each command, including all the supported flags and subcommands, see the [kubectl](/docs/user-guide/kubectl) reference documentation. TODO: Auto-generate this file to ensure it's always in sync with any `kubectl` changes, see [#14177](http://pr.k8s.io/14177). From 8d5a4c0838e4b15ed641b1722c0a3c99e2c59394 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=C5=81ukasz=20Ole=C5=9B?= Date: Thu, 6 Oct 2016 12:00:39 +0200 Subject: [PATCH 038/688] Fix kubectl get documentation - fix list of valid resource types - fix showing template It was fainling with following error message: Liquid Warning: Liquid syntax error (line 68): [:dot, "."] is not a valid expression in "{{.status.phase}}" in docs/user-guide/kubectl/kubectl_get.md --- docs/user-guide/kubectl/kubectl_get.md | 3 +++ 1 file changed, 3 insertions(+) diff --git a/docs/user-guide/kubectl/kubectl_get.md b/docs/user-guide/kubectl/kubectl_get.md index 99f2c25802..9a6f7fc228 100644 --- a/docs/user-guide/kubectl/kubectl_get.md +++ b/docs/user-guide/kubectl/kubectl_get.md @@ -12,6 +12,7 @@ Display one or many resources Display one or many resources. Valid resource types include: + * clusters (valid only for federation apiservers) * componentstatuses (aka 'cs') * configmaps (aka 'cm') @@ -68,7 +69,9 @@ kubectl get -o json pod web-pod-13je7 kubectl get -f pod.yaml -o json # Return only the phase value of the specified pod. +{% raw %} kubectl get -o template pod/web-pod-13je7 --template={{.status.phase}} +{% endraw %} # List all replication controllers and services together in ps output format. kubectl get rc,services From a0e672e50a78a35ec30123dc386f992a255d797b Mon Sep 17 00:00:00 2001 From: Devin Donnelly Date: Thu, 6 Oct 2016 14:27:26 -0700 Subject: [PATCH 039/688] Updated README.md with information on Netlify staging and removed outdated information on versioned doc branches. --- README.md | 30 ++++++++++++++---------------- 1 file changed, 14 insertions(+), 16 deletions(-) diff --git a/README.md b/README.md index a468c1f947..ad6c85778b 100644 --- a/README.md +++ b/README.md @@ -4,16 +4,22 @@ Welcome! We are very pleased you want to contribute to the documentation and/or You can click the "Fork" button in the upper-right area of the screen to create a copy of our site on your GitHub account called a "fork." Make any changes you want in your fork, and when you are ready to send those changes to us, go to the index page for your fork and click "New Pull Request" to let us know about it. -## Staging the site on GitHub Pages +## Automatic Staging for Pull Requests -If you want to see your changes staged without having to install anything locally, remove the CNAME file in this directory and -change the name of the fork to be: +When you create a pull request (either against master or the upcoming release), your changes are staged in a custom subdomain on Netlify so that you can see your changes in rendered form before the PR is merged. You can use this to verify that everything is correct before the PR gets merged. To view your changes: - YOUR_GITHUB_USERNAME.github.io +- Scroll down to the PR's list of Automated Checks +- Click "Show All Checks" +- Look for "deploy/netlify"; you'll see "Deploy Preview Ready!" if staging was successful +- Click "Details" to bring up the staged site and navigate to your changes -Then make your changes. +## Release Branch Staging -When you visit [http://YOUR_GITHUB_USERNAME.github.io](http://YOUR_GITHUB_USERNAME.github.io) you should see a special-to-you version of the site that contains the changes you just made. +The Kubernetes site maintains staged versions at a subdomain provided by Netlify. Every PR for the Kubernetes site, either against the master branch or the upcoming release branch, is staged automatically. + +The staging site for the next upcoming Kubernetes release is here: [http://kubernetes-io-vnext-staging.netlify.com/](http://kubernetes-io-vnext-staging.netlify.com/) + +The staging site reflects the current state of what's been merged in the release branch, or in other words, what the docs will look like for the next upcoming release. It's automatically updated as new PRs get merged. ## Staging the site locally (using Docker) @@ -64,7 +70,6 @@ Make any changes you want. Then, to see your changes locally: Your copy of the site will then be viewable at: [http://localhost:4000](http://localhost:4000) (or wherever Jekyll tells you). - ## GitHub help If you're a bit rusty with git/GitHub, you might want to read @@ -137,20 +142,13 @@ That, of course, will send users to: ## Branch structure -The current version of the website is served out of the `master` branch. +The current version of the website is served out of the `master` branch. To make changes to the live docs, such as bug fixes, broken links, typos, etc, **target your pull request to the master branch**. -All versions of the site that relate to past and future versions will be named after their Kubernetes release number. For example, [the old branch for the 1.1 docs is called `release-1.1`](https://github.com/kubernetes/kubernetes.github.io/tree/release-1.1). +The `release-1.x` branches store changes for **upcoming releases of Kubernetes**. For example, the `release-1.5` branch has changes for the upcoming 1.5 release. These changes target branches (and *not* master) to avoid publishing documentation updates prior to the release for which they're relevant. If you have a change for an upcoming release of Kubernetes, **target your pull request to the appropriate release branch**. Changes in the "docsv2" branch (where we are testing a revamp of the docs) are automatically staged here: http://k8sdocs.github.io/docs/tutorials/ -Changes in the "release-1.1" branch (for k8s v1.1 docs) are automatically staged here: -http://kubernetes-v1-1.github.io/ - -Changes in the "release-1.3" branch (for k8s v1.3 docs) are automatically staged here: -http://kubernetes-v1-3.github.io/ - -Editing of these branches will kick off a build using Travis CI that auto-updates these URLs; you can monitor the build progress at [https://travis-ci.org/kubernetes/kubernetes.github.io](https://travis-ci.org/kubernetes/kubernetes.github.io). ## Config yaml guidelines From 616f99b7165602a671d101fcdfc623ca9cdba275 Mon Sep 17 00:00:00 2001 From: Devin Donnelly Date: Thu, 6 Oct 2016 16:46:59 -0700 Subject: [PATCH 040/688] Modifies the overview for the Kubernetes Basics tutorial to make it more useful. Adds a link to the Overview from the left-hand TOC. Links to the Kubernetes Basics Tutorial from the Tutorials landing page. --- _data/tutorials.yml | 2 ++ docs/tutorials/index.md | 4 ++++ docs/tutorials/kubernetes-basics/index.html | 18 +++++++++++++----- 3 files changed, 19 insertions(+), 5 deletions(-) diff --git a/_data/tutorials.yml b/_data/tutorials.yml index 465b0575d8..e312523bcd 100644 --- a/_data/tutorials.yml +++ b/_data/tutorials.yml @@ -4,6 +4,8 @@ toc: path: /docs/tutorials/ - title: Kubernetes Basics section: + - title: Overview + path: /docs/tutorials/kubernetes-basics/ - title: 1. Create a Cluster section: - title: Using Minikube to Create a Cluster diff --git a/docs/tutorials/index.md b/docs/tutorials/index.md index 23400521e7..03ae95fe36 100644 --- a/docs/tutorials/index.md +++ b/docs/tutorials/index.md @@ -3,6 +3,10 @@ The Tutorials section of the Kubernetes documentation is a work in progress. +#### Kubernetes Basics + +* [Kubernetes Basics](/docs/tutorials/kubernetes-basics/) is an in-depth interactive tutorial that helps you understand the Kubernetes system and try out some basic Kubernetes features. + #### Stateless Applications * [Running a Stateless Application Using a Deployment](/docs/tutorials/stateless-application/run-stateless-application-deployment/) diff --git a/docs/tutorials/kubernetes-basics/index.html b/docs/tutorials/kubernetes-basics/index.html index 0f6a435626..971a3fba19 100644 --- a/docs/tutorials/kubernetes-basics/index.html +++ b/docs/tutorials/kubernetes-basics/index.html @@ -15,8 +15,16 @@
      -

      Getting Started with Kubernetes

      -

      By the end of this tutorial you will understand what Kubernetes does. You will also learn how to deploy, scale, update and debug containerized applications on a Kubernetes cluster using an interactive online terminal.

      +

      Kubernetes Basics

      +

      This tutorial provides a walkthrough of the basics of the Kubernetes cluster orchestration system. Each module contains some background information on major Kubernetes features and concepts, and includes an interactive online tutorial. These interactive tutorials let you manage a simple cluster and its containerized applications for yourself.

      +

      Using the interactive tutorials, you can learn to:

      +
        +
      • Deploy a containerized application on a cluster
        • +
      • Scale the deployment
        • +
      • Update the containerized application with a new software version
        • +
      • Debug the containerized application
        • +
      +

      The tutorials use Katacoda to run a virtual terminal in your web browser that runs Minikube, a small-scale local deployment of Kubernetes that can run anywhere. There's no need to install any software or configure anything; each interactive tutorial runs directly out of your web browser itself.

      @@ -24,13 +32,13 @@
      -

      Why Kubernetes?

      -

      Today users expect applications to be available 24/7, while developers expect to deploy new versions of those applications several times a day. The way we build software is moving in this direction, enabling applications to be released and updated in an easy and fast way without downtime. We also need to be able to scale application in line with the user demand and we expect them to make intelligent use of the available resources. Kubernetes is a platform designed to meet those requirements, using the experience accumulated by Google in this area, combined with best-of-breed ideas from the community.

      +

      What can Kubernetes do for you?

      +

      With modern web services, users expect applications to be available 24/7, and developers expect to deploy new versions of those applications several times a day. Containzerization helps package software to serve these goals, enabling applications to be released and updated in an easy and fast way without downtime. Kubernetes helps you make sure those containerized applications run where and when you want, and helps them find the resources and tools they need to work. Kubernetes is a production-ready, open source platform designed with the Google's accumulated experience in container orchestration, combined with best-of-breed ideas from the community.

      -

      Getting Started Modules

      +

      Kubernetes Basics Modules

      From 65b71767e19cacd2c5e2e0fa173fb21afd4c1ccb Mon Sep 17 00:00:00 2001 From: Devin Donnelly Date: Thu, 6 Oct 2016 16:53:49 -0700 Subject: [PATCH 041/688] Fixes broken links to each module. --- docs/tutorials/kubernetes-basics/index.html | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/docs/tutorials/kubernetes-basics/index.html b/docs/tutorials/kubernetes-basics/index.html index 971a3fba19..723639552b 100644 --- a/docs/tutorials/kubernetes-basics/index.html +++ b/docs/tutorials/kubernetes-basics/index.html @@ -42,7 +42,7 @@
      - +
      1. Create a Kubernetes cluster
      @@ -50,7 +50,7 @@
      - +
      2. Deploy an app
      @@ -58,7 +58,7 @@
      - +
      3. Explore your app
      @@ -66,7 +66,7 @@
      - +
      4. Expose your app publicly
      @@ -74,7 +74,7 @@
      - +
      5. Scale up your app
      @@ -82,7 +82,7 @@
      - +
      6. Update your app
      From 482760d6d6ab0c8f849b5b34b445fed57e84c682 Mon Sep 17 00:00:00 2001 From: Devin Donnelly Date: Thu, 6 Oct 2016 16:59:17 -0700 Subject: [PATCH 042/688] Replaces links to HelloNode with links to Kubernetes Basics. --- docs/index.md | 6 +++--- index.html | 2 +- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/docs/index.md b/docs/index.md index 5e29c42dcb..38f3400167 100644 --- a/docs/index.md +++ b/docs/index.md @@ -77,9 +77,9 @@ h2, h3, h4 { Read the Overview
      -

      Hello World on Google Container Engine

      -

      In this quickstart, we’ll be creating a Kubernetes instance that stands up a simple “Hello World” app using Node.js. In just a few minutes you'll go from zero to deployed Kubernetes app on Google Container Engine (GKE), a hosted service from Google.

      - Get Started on GKE +

      Kubernetes Basics Interactive Tutorial

      +

      The Kubernetes Basics interactive tutorials let you try out Kubernetes features using Minikube right out of your web browser in a virtual terminal. Learn about the Kubernetes system and deploy, expose, scale, and upgrade a containerized application in just a few minutes.

      + Try the Interactive Tutorials

      Installing Kubernetes on Linux with kubeadm

      diff --git a/index.html b/index.html index 3c940304ba..cf01ad2e92 100644 --- a/index.html +++ b/index.html @@ -14,7 +14,7 @@ title: Production-Grade Container Orchestration

      Production-Grade Container Orchestration

      Automated container deployment, scaling, and management
      - Try Our Hello World + Try Our Interactive Tutorials
      From a58de7ff5fb507d3b2bcf8ccecb458107e647c41 Mon Sep 17 00:00:00 2001 From: steveperry-53 Date: Thu, 6 Oct 2016 17:42:07 -0700 Subject: [PATCH 043/688] Experiment with redirect_from. --- docs/tutorials/kubernetes-basics/cluster-intro.html | 1 + 1 file changed, 1 insertion(+) diff --git a/docs/tutorials/kubernetes-basics/cluster-intro.html b/docs/tutorials/kubernetes-basics/cluster-intro.html index b5886827a0..890c9c387e 100644 --- a/docs/tutorials/kubernetes-basics/cluster-intro.html +++ b/docs/tutorials/kubernetes-basics/cluster-intro.html @@ -1,4 +1,5 @@ --- +redirect_from: "/docs/tutorials/getting-started/create-cluster/" --- From 30a8b4724f49578c5402d0257a3dbde2ed56dc43 Mon Sep 17 00:00:00 2001 From: Mike Spreitzer Date: Sun, 25 Sep 2016 15:33:10 -0700 Subject: [PATCH 044/688] Clarified the apiGroup identified by empty string Noted this where the relevance of api group is introduced, and corrected the reference to what the empty string means ("core" api group, which is the terminology used in the page that introduces api group, rather than the old text "default"). --- docs/admin/authorization.md | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/docs/admin/authorization.md b/docs/admin/authorization.md index 0c8508a1ec..a72a855cb2 100644 --- a/docs/admin/authorization.md +++ b/docs/admin/authorization.md @@ -53,7 +53,7 @@ A request has the following attributes that can be considered for authorization: - what resource is being accessed (for resource requests only) - what subresource is being accessed (for resource requests only) - the namespace of the object being accessed (for namespaced resource requests only) - - the API group being accessed (for resource requests only) + - the API group being accessed (for resource requests only); an empty string designates the [core API group](../api.md#api-groups) The request verb for a resource API endpoint can be determined by the HTTP verb used and whether or not the request acts on an individual resource or a collection of resources: @@ -231,7 +231,7 @@ metadata: namespace: default name: pod-reader rules: - - apiGroups: [""] # The API group "" indicates the default API Group. + - apiGroups: [""] # The API group "" indicates the core API Group. resources: ["pods"] verbs: ["get", "watch", "list"] nonResourceURLs: [] @@ -632,4 +632,4 @@ subjectaccessreview "" created ``` This is useful for debugging access problems, in that you can use this resource -to determine what access an authorizer is granting. \ No newline at end of file +to determine what access an authorizer is granting. From cd709f29aa71ea32e2ece3d1412261bd5bb05c1f Mon Sep 17 00:00:00 2001 From: Pablo Guerrero Date: Fri, 7 Oct 2016 08:47:24 +0200 Subject: [PATCH 045/688] Minor corrections --- docs/user-guide/petset.md | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/docs/user-guide/petset.md b/docs/user-guide/petset.md index 6063062df6..c3a2085a97 100644 --- a/docs/user-guide/petset.md +++ b/docs/user-guide/petset.md @@ -17,7 +17,7 @@ Throughout this doc you will see a few terms that are sometimes used interchange * Persistent Volume Claim (PVC): A request for storage, typically a [persistent volume](/docs/user-guide/persistent-volumes/walkthrough/). * Host name: The hostname attached to the UTS namespace of the pod, i.e the output of `hostname` in the pod. * DNS/Domain name: A *cluster local* domain name resolvable using standard methods (eg: [gethostbyname](http://linux.die.net/man/3/gethostbyname)). -* Ordinality: the proprety of being "ordinal", or occupying a position in a sequence. +* Ordinality: the property of being "ordinal", or occupying a position in a sequence. * Pet: a single member of a PetSet; more generally, a stateful application. * Peer: a process running a server, capable of communicating with other such processes. @@ -29,7 +29,7 @@ This doc assumes familiarity with the following Kubernetes concepts: * [Cluster DNS](/docs/admin/dns/) * [Headless Services](/docs/user-guide/services/#headless-services) * [Persistent Volumes](/docs/user-guide/volumes/) -* [Dynamic volume provisioning](http://releases.k8s.io/{{page.githubbranch}}/examples/experimental/persistent-volume-provisioning/README.md) +* [Persistent Volume Provisioning](http://releases.k8s.io/{{page.githubbranch}}/examples/experimental/persistent-volume-provisioning/README.md) You need a working Kubernetes cluster at version >= 1.3, with a healthy DNS [cluster addon](http://releases.k8s.io/{{page.githubbranch}}/cluster/addons/README.md) at version >= 15. You cannot use PetSet on a hosted Kubernetes provider that has disabled `alpha` resources. @@ -85,7 +85,7 @@ Before you start deploying applications as PetSets, there are a few limitations * PetSet is an *alpha* resource, not available in any Kubernetes release prior to 1.3. * As with all alpha/beta resources, it can be disabled through the `--runtime-config` option passed to the apiserver, and in fact most likely will be disabled on hosted offerings of Kubernetes. * The only updatable field on a PetSet is `replicas` -* The storage for a given pet must either be provisioned by a [dynamic storage provisioner](http://releases.k8s.io/{{page.githubbranch}}/examples/experimental/persistent-volume-provisioning/README.md) based on the requested `storage class`, or pre-provisioned by an admin. Note that dynamic volume provisioning is also currently in alpha. +* The storage for a given pet must either be provisioned by a [persistent volume provisioner](http://releases.k8s.io/{{page.githubbranch}}/examples/experimental/persistent-volume-provisioning/README.md) based on the requested `storage class`, or pre-provisioned by an admin. Note that persistent volume provisioning is also currently in alpha. * Deleting and/or scaling a PetSet down will *not* delete the volumes associated with the PetSet. This is done to ensure safety first, your data is more valuable than an auto purge of all related PetSet resources. **Deleting the Persistent Volume Claims will result in a deletion of the associated volumes**. * All PetSets currently require a "governing service", or a Service responsible for the network identity of the pets. The user is responsible for this Service. * Updating an existing PetSet is currently a manual process, meaning you either need to deploy a new PetSet with the new image version, or orphan Pets one by one, update their image, and join them back to the cluster. @@ -392,7 +392,8 @@ $ grace=$(kubectl get po web-0 --template '{{.spec.terminationGracePeriodSeconds $ kubectl delete petset,po -l app=nginx $ sleep $grace $ kubectl delete pvc -l app=nginx -{% endraw %}``` +{% endraw %} +``` ## Troubleshooting From 30af17a161097f0b3a8991248306f22444850598 Mon Sep 17 00:00:00 2001 From: kcluster Date: Thu, 6 Oct 2016 20:19:34 +1100 Subject: [PATCH 046/688] Add link to KCluster.io --- docs/getting-started-guides/index.md | 3 +++ 1 file changed, 3 insertions(+) diff --git a/docs/getting-started-guides/index.md b/docs/getting-started-guides/index.md index ac02bd726a..a728980e50 100644 --- a/docs/getting-started-guides/index.md +++ b/docs/getting-started-guides/index.md @@ -41,6 +41,8 @@ clusters. [AppsCode.com](https://appscode.com/products/cloud-deployment/) provides managed Kubernetes clusters for various public clouds (including AWS and Google Cloud Platform). +[KCluster.io](https://kcluster.io) provides highly available and scalable managed Kubernetes clusters for AWS. + ### Turn-key Cloud Solutions These solutions allow you to create Kubernetes clusters on a range of Cloud IaaS providers with only a @@ -120,6 +122,7 @@ IaaS Provider | Config. Mgmt | OS | Networking | Docs GKE | | | GCE | [docs](https://cloud.google.com/container-engine) | ['œ“][3] | Commercial Stackpoint.io | | multi-support | multi-support | [docs](http://www.stackpointcloud.com) | | Commercial AppsCode.com | Saltstack | Debian | multi-support | [docs](https://appscode.com/products/cloud-deployment/) | | Commercial +KCluster.io | | multi-support | multi-support | [docs](https://kcluster.io) | | Commercial GCE | Saltstack | Debian | GCE | [docs](/docs/getting-started-guides/gce) | ['œ“][1] | Project Azure | CoreOS | CoreOS | Weave | [docs](/docs/getting-started-guides/coreos/azure/) | | Community ([@errordeveloper](https://github.com/errordeveloper), [@squillace](https://github.com/squillace), [@chanezon](https://github.com/chanezon), [@crossorigin](https://github.com/crossorigin)) Azure | Ignition | Ubuntu | Azure | [docs](/docs/getting-started-guides/azure) | | Community (Microsoft: [@brendandburns](https://github.com/brendandburns), [@colemickens](https://github.com/colemickens)) From 2c14d7fcb04e1f631316f1305f6a3213020baa2e Mon Sep 17 00:00:00 2001 From: Steve Perry Date: Fri, 7 Oct 2016 14:13:42 -0700 Subject: [PATCH 047/688] Redirection experiment 2. (#1411) --- _config.yml | 4 ++++ docs/tutorials/kubernetes-basics/cluster-intro.html | 4 +++- 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/_config.yml b/_config.yml index 1a7fefdb6d..7ace374fca 100644 --- a/_config.yml +++ b/_config.yml @@ -27,3 +27,7 @@ defaults: showedit: true permalink: pretty + +gems: + - jekyll-redirect-from + diff --git a/docs/tutorials/kubernetes-basics/cluster-intro.html b/docs/tutorials/kubernetes-basics/cluster-intro.html index 890c9c387e..423dc61783 100644 --- a/docs/tutorials/kubernetes-basics/cluster-intro.html +++ b/docs/tutorials/kubernetes-basics/cluster-intro.html @@ -1,5 +1,7 @@ --- -redirect_from: "/docs/tutorials/getting-started/create-cluster/" +redirect_from: + - /docs/tutorials/getting-started/create-cluster/ + - /docs/tutorials/getting-started/create-cluster.html --- From ee5b5eea3980d67220055c2248ff400864bc6ee6 Mon Sep 17 00:00:00 2001 From: Anirudh Ramanathan Date: Sat, 8 Oct 2016 13:43:19 -0700 Subject: [PATCH 048/688] Point init containers to documentation The proposal doesn't reflect reality. --- docs/user-guide/petset/bootstrapping/index.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/user-guide/petset/bootstrapping/index.md b/docs/user-guide/petset/bootstrapping/index.md index e9b04fc135..03ba721edc 100644 --- a/docs/user-guide/petset/bootstrapping/index.md +++ b/docs/user-guide/petset/bootstrapping/index.md @@ -8,7 +8,7 @@ This purpose of this guide is to help you become familiar with the runtime initialization of [Pet Sets](/docs/user-guide/petset). This guide assumes the same prerequisites, and uses the same terminology as the [Pet Set user document](/docs/user-guide/petset). -The most common way to initialize the runtime in a containerized environment, is through a custom [entrypoint](https://docs.docker.com/engine/reference/builder/#entrypoint). While this is not necessarily bad, making your application pid 1, and treating containers as processes in general is good for a few reasons outside the scope of this document. Doing so allows you to run docker images from third-party vendors without modification. We will not be writing custom entrypoints for this example, but using a feature called [init containers](http://releases.k8s.io/{{page.githubbranch}}/docs/proposals/container-init.md), to explain 2 common patterns that come up deploying Pet Sets. +The most common way to initialize the runtime in a containerized environment, is through a custom [entrypoint](https://docs.docker.com/engine/reference/builder/#entrypoint). While this is not necessarily bad, making your application pid 1, and treating containers as processes in general is good for a few reasons outside the scope of this document. Doing so allows you to run docker images from third-party vendors without modification. We will not be writing custom entrypoints for this example, but using a feature called [init containers](http://kubernetes.io/docs/user-guide/production-pods/#handling-initialization), to explain 2 common patterns that come up deploying Pet Sets. 1. Transferring state across Pet restart, so that a future Pet is initialized with the computations of its past incarnation 2. Initializing the runtime environment of a Pet based on existing conditions, like a list of currently healthy peers From 63f9993bb0b21fcf232e114aea1a38aff6da55dd Mon Sep 17 00:00:00 2001 From: Anirudh Ramanathan Date: Sat, 8 Oct 2016 13:46:38 -0700 Subject: [PATCH 049/688] Init containers are in beta in 1.4 --- docs/user-guide/production-pods.md | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/docs/user-guide/production-pods.md b/docs/user-guide/production-pods.md index efd1c43e43..501f908875 100644 --- a/docs/user-guide/production-pods.md +++ b/docs/user-guide/production-pods.md @@ -194,13 +194,13 @@ Applications often need a set of initialization steps prior to performing their * Registering the pod into a central database, or fetching remote configuration from that database * Downloading application dependencies, seed data, or preconfiguring disk -Kubernetes now includes an alpha feature known as **init containers**, which are one or more containers in a pod that get a chance to run and initialize shared volumes prior to the other application containers starting. An init container is exactly like a regular container, except that it always runs to completion and each init container must complete successfully before the next one is started. If the init container fails (exits with a non-zero exit code) on a `RestartNever` pod the pod will fail - otherwise it will be restarted until it succeeds or the user deletes the pod. +Kubernetes now includes a beta feature known as **init containers**, which are one or more containers in a pod that get a chance to run and initialize shared volumes prior to the other application containers starting. An init container is exactly like a regular container, except that it always runs to completion and each init container must complete successfully before the next one is started. If the init container fails (exits with a non-zero exit code) on a `RestartNever` pod the pod will fail - otherwise it will be restarted until it succeeds or the user deletes the pod. -Since init containers are an alpha feature, they are specified by setting the `pod.alpha.kubernetes.io/init-containers` annotation on a pod (or replica set, deployment, daemon set, pet set, or job). The value of the annotation must be a string containing a JSON array of container definitions: +Since init containers are a beta feature, they are specified by setting the `pod.beta.kubernetes.io/init-containers` annotation on a pod (or replica set, deployment, daemon set, pet set, or job). The value of the annotation must be a string containing a JSON array of container definitions: {% include code.html language="yaml" file="nginx-init-containers.yaml" ghlink="/docs/user-guide/nginx-init-containers.yaml" %} -The status of the init containers is returned as another annotation - `pod.alpha.kubernetes.io/init-container-statuses` -- as an array of the container statuses (similar to the `status.containerStatuses` field). +The status of the init containers is returned as another annotation - `pod.beta.kubernetes.io/init-container-statuses` -- as an array of the container statuses (similar to the `status.containerStatuses` field). Init containers support all of the same features as normal containers, including resource limits, volumes, and security settings. The resource requests and limits for an init container are handled slightly different than normal containers since init containers are run one at a time instead of all at once - any limits or quotas will be applied based on the largest init container resource quantity, rather than as the sum of quantities. Init containers do not support readiness probes since they will run to completion before the pod can be ready. From 58ae316dfed5f6eeddebaebdc19f842ff268ad60 Mon Sep 17 00:00:00 2001 From: anatoly techtonik Date: Sun, 9 Oct 2016 16:42:13 +0300 Subject: [PATCH 050/688] Update kubectl-overview.md Broken link --- docs/user-guide/kubectl-overview.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/user-guide/kubectl-overview.md b/docs/user-guide/kubectl-overview.md index 81f171a445..b86009d69a 100644 --- a/docs/user-guide/kubectl-overview.md +++ b/docs/user-guide/kubectl-overview.md @@ -281,4 +281,4 @@ $ kubectl logs -f ## Next steps -Start using the [kubectl](/docs/user-guide/kubectl/kubectl) commands. +Start using the [kubectl](/docs/user-guide/kubectl) commands. From 95b028be80e5cee05fc62b83d8922028165af9a0 Mon Sep 17 00:00:00 2001 From: anatoly techtonik Date: Sun, 9 Oct 2016 17:29:57 +0300 Subject: [PATCH 051/688] Update kubectl-overview.md Add link to kubectl installation instructions --- docs/user-guide/kubectl-overview.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/user-guide/kubectl-overview.md b/docs/user-guide/kubectl-overview.md index 81f171a445..6257b8011a 100644 --- a/docs/user-guide/kubectl-overview.md +++ b/docs/user-guide/kubectl-overview.md @@ -5,7 +5,7 @@ assignees: --- -Use this overview of the `kubectl` command line interface to help you start running commands against Kubernetes clusters. This overview quickly covers `kubectl` syntax, describes the command operations, and provides common examples. For details about each command, including all the supported flags and subcommands, see the [kubectl](/docs/user-guide/kubectl) reference documentation. +`kubectl` is a command line interface to for running commands against Kubernetes clusters. This overview quickly covers `kubectl` syntax, describes the command operations, and provides common examples. For details about each command, including all the supported flags and subcommands, see the [kubectl](/docs/user-guide/kubectl) reference documentation. For installation instructions see [prerequisites](http://kubernetes.io/docs/user-guide/prereqs/). TODO: Auto-generate this file to ensure it's always in sync with any `kubectl` changes, see [#14177](http://pr.k8s.io/14177). From 5fabbd59d005e67781bc03b9a35690f862c94ff0 Mon Sep 17 00:00:00 2001 From: anatoly techtonik Date: Sun, 9 Oct 2016 17:30:38 +0300 Subject: [PATCH 052/688] Update kubectl-overview.md --- docs/user-guide/kubectl-overview.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/user-guide/kubectl-overview.md b/docs/user-guide/kubectl-overview.md index 6257b8011a..6d0d0eb135 100644 --- a/docs/user-guide/kubectl-overview.md +++ b/docs/user-guide/kubectl-overview.md @@ -5,7 +5,7 @@ assignees: --- -`kubectl` is a command line interface to for running commands against Kubernetes clusters. This overview quickly covers `kubectl` syntax, describes the command operations, and provides common examples. For details about each command, including all the supported flags and subcommands, see the [kubectl](/docs/user-guide/kubectl) reference documentation. For installation instructions see [prerequisites](http://kubernetes.io/docs/user-guide/prereqs/). +`kubectl` is a command line interface for running commands against Kubernetes clusters. This overview quickly covers `kubectl` syntax, describes the command operations, and provides common examples. For details about each command, including all the supported flags and subcommands, see the [kubectl](/docs/user-guide/kubectl) reference documentation. For installation instructions see [prerequisites](http://kubernetes.io/docs/user-guide/prereqs/). TODO: Auto-generate this file to ensure it's always in sync with any `kubectl` changes, see [#14177](http://pr.k8s.io/14177). From 252d8b8c41e0a07ae292450ce880a77416bc6daf Mon Sep 17 00:00:00 2001 From: Fede Diaz Date: Sun, 9 Oct 2016 17:46:04 +0200 Subject: [PATCH 053/688] Update centos_manual_config.md Added flannel configuration. Now more than one worker is available. Tested on Centos7 minimal install --- .../centos/centos_manual_config.md | 73 +++++++++++++++---- 1 file changed, 57 insertions(+), 16 deletions(-) diff --git a/docs/getting-started-guides/centos/centos_manual_config.md b/docs/getting-started-guides/centos/centos_manual_config.md index f794f485a4..40325c8985 100644 --- a/docs/getting-started-guides/centos/centos_manual_config.md +++ b/docs/getting-started-guides/centos/centos_manual_config.md @@ -10,15 +10,15 @@ assignees: ## Prerequisites -You need two machines with CentOS installed on them. +You need a machine acting as master and as many CentOS 7 hosts as you would like, that act as cluster nodes. ## Starting a cluster This is a getting started guide for CentOS. It is a manual configuration so you understand all the underlying packages / services / ports, etc... -This guide will only get ONE node working. Multiple nodes requires a functional [networking configuration](/docs/admin/networking) done outside of kubernetes. Although the additional Kubernetes configuration requirements should be obvious. +The Kubernetes package provides a few services: kube-apiserver, kube-scheduler, kube-controller-manager, kubelet, kube-proxy. These services are managed by systemd and the configuration resides in a central location: /etc/kubernetes. We will break the services up between the hosts. The first host, centos-master, will be the Kubernetes master. This host will run the kube-apiserver, kube-controller-manager and kube-scheduler. In addition, the master will also run _etcd_. The remaining hosts, centos-minion-n will be the nodes and run kubelet, proxy, cadvisor and docker. -The Kubernetes package provides a few services: kube-apiserver, kube-scheduler, kube-controller-manager, kubelet, kube-proxy. These services are managed by systemd and the configuration resides in a central location: /etc/kubernetes. We will break the services up between the hosts. The first host, centos-master, will be the Kubernetes master. This host will run the kube-apiserver, kube-controller-manager, and kube-scheduler. In addition, the master will also run _etcd_. The remaining host, centos-minion will be the node and run kubelet, proxy, cadvisor and docker. +All of then run flanneld as networking overlay. **System Information:** @@ -28,12 +28,14 @@ Please replace host IP with your environment. ```conf centos-master = 192.168.121.9 -centos-minion = 192.168.121.65 +centos-minion-1 = 192.168.121.65 +centos-minion-2 = 192.168.121.66 +centos-minion-3 = 192.168.121.67 ``` **Prepare the hosts:** -* Create a /etc/yum.repos.d/virt7-docker-common-release.repo on all hosts - centos-{master,minion} with following information. +* Create a /etc/yum.repos.d/virt7-docker-common-release.repo on all hosts - centos-{master,minion-n} with following information. ```conf [virt7-docker-common-release] @@ -42,17 +44,19 @@ baseurl=http://cbs.centos.org/repos/virt7-docker-common-release/x86_64/os/ gpgcheck=0 ``` -* Install Kubernetes and etcd on all hosts - centos-{master,minion}. This will also pull in docker and cadvisor. +* Install Kubernetes, etcd and flannel on all hosts - centos-{master,minion-n}. This will also pull in docker and cadvisor. ```shell -yum -y install --enablerepo=virt7-docker-common-release kubernetes etcd +yum -y install --enablerepo=virt7-docker-common-release kubernetes etcd flannel ``` * Add master and node to /etc/hosts on all machines (not needed if hostnames already in DNS) ```shell echo "192.168.121.9 centos-master -192.168.121.65 centos-minion" >> /etc/hosts +192.168.121.65 centos-minion-1 +192.168.121.66 centos-minion-2 +192.168.121.67 centos-minion-3" >> /etc/hosts ``` * Edit /etc/kubernetes/config which will be the same on all hosts to contain: @@ -74,7 +78,7 @@ KUBE_ALLOW_PRIV="--allow-privileged=false" KUBE_MASTER="--master=http://centos-master:8080" ``` -* Disable the firewall on both the master and node, as docker does not play well with other firewall rule managers +* Disable the firewall on the master and all the nodes, as docker does not play well with other firewall rule managers ```shell systemctl disable iptables-services firewalld @@ -114,17 +118,38 @@ KUBE_SERVICE_ADDRESSES="--service-cluster-ip-range=10.254.0.0/16" KUBE_API_ARGS="" ``` +* Configure ETCD to hold the network overlay configuration on master: + +```shell +$ etcdctl mkdir /kube-centos/network +$ etcdclt mk /kube-centos/network/config "{ \"Network\": \"172.40.0.0/16\", \"SubnetLen\": 24, \"Backend\": { \"Type\": \"vxlan\" } }" +``` + +* Configure flannel to overlay Docker network in /etc/sysconfig/flanneld on the master (also in the nodes as we'll see): + +```shell +# etcd url location. Point this to the server where etcd runs +FLANNEL_ETCD="http://centos-master:2379" + +# etcd config key. This is the configuration key that flannel queries +# For address range assignment +FLANNEL_ETCD_KEY="/kube-centos/network" + +# Any additional options that you want to pass +FLANNEL_OPTIONS="" +``` + * Start the appropriate services on master: ```shell -for SERVICES in etcd kube-apiserver kube-controller-manager kube-scheduler; do +for SERVICES in etcd kube-apiserver kube-controller-manager kube-scheduler flanneld; do systemctl restart $SERVICES systemctl enable $SERVICES systemctl status $SERVICES done ``` -**Configure the Kubernetes services on the node.** +**Configure the Kubernetes services on the nodes.** ***We need to configure the kubelet and start the kubelet and proxy*** @@ -138,7 +163,7 @@ KUBELET_ADDRESS="--address=0.0.0.0" KUBELET_PORT="--port=10250" # You may leave this blank to use the actual hostname -KUBELET_HOSTNAME="--hostname-override=centos-minion" +KUBELET_HOSTNAME="--hostname-override=centos-minion-n" # Check the node number! # Location of the api-server KUBELET_API_SERVER="--api-servers=http://centos-master:8080" @@ -147,10 +172,24 @@ KUBELET_API_SERVER="--api-servers=http://centos-master:8080" KUBELET_ARGS="" ``` -* Start the appropriate services on node (centos-minion). +* Configure flannel to overlay Docker network in /etc/sysconfig/flanneld (in all the nodes) ```shell -for SERVICES in kube-proxy kubelet docker; do +# etcd url location. Point this to the server where etcd runs +FLANNEL_ETCD="http://centos-master:2379" + +# etcd config key. This is the configuration key that flannel queries +# For address range assignment +FLANNEL_ETCD_KEY="/kube-centos/network" + +# Any additional options that you want to pass +FLANNEL_OPTIONS="" +``` + +* Start the appropriate services on node (centos-minion-n). + +```shell +for SERVICES in kube-proxy kubelet flanneld docker; do systemctl restart $SERVICES systemctl enable $SERVICES systemctl status $SERVICES @@ -164,7 +203,9 @@ done ```shell $ kubectl get nodes NAME LABELS STATUS -centos-minion Ready +centos-minion-1 Ready +centos-minion-2 Ready +centos-minion-3 Ready ``` **The cluster should be running! Launch a test pod.** @@ -176,7 +217,7 @@ You should have a functional cluster, check out [101](/docs/user-guide/walkthrou IaaS Provider | Config. Mgmt | OS | Networking | Docs | Conforms | Support Level -------------------- | ------------ | ------ | ---------- | --------------------------------------------- | ---------| ---------------------------- -Bare-metal | custom | CentOS | _none_ | [docs](/docs/getting-started-guides/centos/centos_manual_config) | | Community ([@coolsvap](https://github.com/coolsvap)) +Bare-metal | custom | CentOS | flannel | [docs](/docs/getting-started-guides/centos/centos_manual_config) | | Community ([@coolsvap](https://github.com/coolsvap)) For support level information on all solutions, see the [Table of solutions](/docs/getting-started-guides/#table-of-solutions) chart. From f727a572b8d06aef9e15217b66acc564aba95702 Mon Sep 17 00:00:00 2001 From: Fede Diaz Date: Sun, 9 Oct 2016 17:52:25 +0200 Subject: [PATCH 054/688] Update centos_manual_config.md Warning about flannel network --- docs/getting-started-guides/centos/centos_manual_config.md | 1 + 1 file changed, 1 insertion(+) diff --git a/docs/getting-started-guides/centos/centos_manual_config.md b/docs/getting-started-guides/centos/centos_manual_config.md index 40325c8985..1f1c3ff1dc 100644 --- a/docs/getting-started-guides/centos/centos_manual_config.md +++ b/docs/getting-started-guides/centos/centos_manual_config.md @@ -119,6 +119,7 @@ KUBE_API_ARGS="" ``` * Configure ETCD to hold the network overlay configuration on master: +**Warning** This network must be unused in your network infrastructure! `172.40.0.0/16` is free in our network. ```shell $ etcdctl mkdir /kube-centos/network From 7143b1e7820df2e2e6760212f5943bb7b9eb366d Mon Sep 17 00:00:00 2001 From: anatoly techtonik Date: Sun, 9 Oct 2016 19:14:02 +0300 Subject: [PATCH 055/688] More broken links --- docs/user-guide/kubectl-overview.md | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/docs/user-guide/kubectl-overview.md b/docs/user-guide/kubectl-overview.md index b86009d69a..bb587a9f91 100644 --- a/docs/user-guide/kubectl-overview.md +++ b/docs/user-guide/kubectl-overview.md @@ -77,7 +77,7 @@ Operation | Syntax | Description `stop` | `kubectl stop` | Deprecated: Instead, see `kubectl delete`. `version` | `kubectl version [--client] [flags]` | Display the Kubernetes version running on the client and server. -Remember: For more about command operations, see the [kubectl](/docs/user-guide/kubectl/kubectl) reference documentation. +Remember: For more about command operations, see the [kubectl](/docs/user-guide/kubectl) reference documentation. ## Resource types @@ -115,7 +115,7 @@ Resource type | Abbreviated alias ## Output options -Use the following sections for information about how you can format or sort the output of certain commands. For details about which commands support the various output options, see the [kubectl](/docs/user-guide/kubectl/kubectl) reference documentation. +Use the following sections for information about how you can format or sort the output of certain commands. For details about which commands support the various output options, see the [kubectl](/docs/user-guide/kubectl) reference documentation. ### Formatting output @@ -146,7 +146,7 @@ In this example, the following command outputs the details for a single pod as a `$ kubectl get pod web-pod-13je7 -o=yaml` -Remember: See the [kubectl](/docs/user-guide/kubectl/kubectl) reference documentation for details about which output format is supported by each command. +Remember: See the [kubectl](/docs/user-guide/kubectl) reference documentation for details about which output format is supported by each command. #### Custom columns From 12f5e30309ea31aba99b980a73bdd646d97f475b Mon Sep 17 00:00:00 2001 From: Mike Spreitzer Date: Sun, 25 Sep 2016 15:24:59 -0700 Subject: [PATCH 056/688] Removed confusing remark about authorizers determining groups The old text said that the authorizer is expected to determine group memberships when the authenticator does not. This not true. It is allowed, but not expected --- and none of the standard authorizers do it. I tried composing a brief correct statement about this, but the reviews were mainly aghast that internal details of some non-standard authorizers were being injected into the discussion of authentictors. I decided that the better part of valor is simply to delete the whole topic from here. Besides, it is a conclusion that any reader would normally draw --- since there is no statement forbidding it (nor indeed any indication that there might be a reason to forbid it), any reader would naturally conclude that an authorizer is free to derive additional intermediate information of any sort and in any way it likes. --- docs/admin/accessing-the-api.md | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/docs/admin/accessing-the-api.md b/docs/admin/accessing-the-api.md index 6569ac93f8..cb3f3d4ce4 100644 --- a/docs/admin/accessing-the-api.md +++ b/docs/admin/accessing-the-api.md @@ -52,8 +52,8 @@ On GCE, Client Certificates, Password, Plain Tokens, and JWT Tokens are all enab If the request cannot be authenticated, it is rejected with HTTP status code 401. Otherwise, the user is authenticated as a specific `username`, and the user name is available to subsequent steps to use in their decisions. Some authenticators -may also provide the group memberships of the user, while other authenticators -do not (and expect the authorizer to determine these). +also provide the group memberships of the user, while other authenticators +do not. While Kubernetes uses "usernames" for access control decisions and in request logging, it does not have a `user` object nor does it store usernames or other information about From 97aa665e143e86e15e0e14e31243dc11d6237b4f Mon Sep 17 00:00:00 2001 From: anatoly techtonik Date: Mon, 10 Oct 2016 10:50:49 +0300 Subject: [PATCH 057/688] Make link portable --- docs/user-guide/kubectl-overview.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/user-guide/kubectl-overview.md b/docs/user-guide/kubectl-overview.md index 6d0d0eb135..1b2c6ff026 100644 --- a/docs/user-guide/kubectl-overview.md +++ b/docs/user-guide/kubectl-overview.md @@ -5,7 +5,7 @@ assignees: --- -`kubectl` is a command line interface for running commands against Kubernetes clusters. This overview quickly covers `kubectl` syntax, describes the command operations, and provides common examples. For details about each command, including all the supported flags and subcommands, see the [kubectl](/docs/user-guide/kubectl) reference documentation. For installation instructions see [prerequisites](http://kubernetes.io/docs/user-guide/prereqs/). +`kubectl` is a command line interface for running commands against Kubernetes clusters. This overview quickly covers `kubectl` syntax, describes the command operations, and provides common examples. For details about each command, including all the supported flags and subcommands, see the [kubectl](/docs/user-guide/kubectl) reference documentation. For installation instructions see [prerequisites](/docs/user-guide/prereqs). TODO: Auto-generate this file to ensure it's always in sync with any `kubectl` changes, see [#14177](http://pr.k8s.io/14177). From a3821df026f855c83c236c2274752f426501fb86 Mon Sep 17 00:00:00 2001 From: Bryan Boreham Date: Thu, 6 Oct 2016 12:05:28 +0100 Subject: [PATCH 058/688] Ensure namespace is created first in microservices-demo Avoid 'namespaces "sock-shop" not found' messages when users try the demo --- docs/getting-started-guides/kubeadm.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/getting-started-guides/kubeadm.md b/docs/getting-started-guides/kubeadm.md index 86de0652c2..e5e60c83ef 100644 --- a/docs/getting-started-guides/kubeadm.md +++ b/docs/getting-started-guides/kubeadm.md @@ -178,7 +178,7 @@ As an example, install a sample microservices application, a socks shop, to put To learn more about the sample microservices app, see the [GitHub README](https://github.com/microservices-demo/microservices-demo). # git clone https://github.com/microservices-demo/microservices-demo - # kubectl apply -f microservices-demo/deploy/kubernetes/manifests + # kubectl apply -f microservices-demo/deploy/kubernetes/manifests/sock-shop-ns.yml -f microservices-demo/deploy/kubernetes/manifests You can then find out the port that the [NodePort feature of services](/docs/user-guide/services/) allocated for the front-end service by running: From 65e894123928653fc95b3605d94648586132c317 Mon Sep 17 00:00:00 2001 From: James Munnelly Date: Mon, 26 Sep 2016 21:41:24 +0100 Subject: [PATCH 059/688] Add kubeadm reference docs --- docs/getting-started-guides/kubeadm.md | 1 + docs/user-guide/kubeadm-reference.md | 143 +++++++++++++++++++++++++ 2 files changed, 144 insertions(+) create mode 100644 docs/user-guide/kubeadm-reference.md diff --git a/docs/getting-started-guides/kubeadm.md b/docs/getting-started-guides/kubeadm.md index e5e60c83ef..32b91ccdb9 100644 --- a/docs/getting-started-guides/kubeadm.md +++ b/docs/getting-started-guides/kubeadm.md @@ -211,6 +211,7 @@ See the [list of add-ons](/docs/admin/addons/) to explore other add-ons, includi * Learn more about [Kubernetes concepts and kubectl in Kubernetes 101](/docs/user-guide/walkthrough/). * Install Kubernetes with [a cloud provider configurations](/docs/getting-started-guides/) to add Load Balancer and Persistent Volume support. +* Learn about `kubeadm`'s advanced usage on the [advanced reference doc](/docs/user-guide/kubeadm-reference/) ## Cleanup diff --git a/docs/user-guide/kubeadm-reference.md b/docs/user-guide/kubeadm-reference.md new file mode 100644 index 0000000000..49ba3663e6 --- /dev/null +++ b/docs/user-guide/kubeadm-reference.md @@ -0,0 +1,143 @@ +# kubeadm reference + +This document provides information on how to use kubeadm's advanced options. + +Running kubeadm init bootstraps a Kubernetes cluster. This consists of the +following steps: + +1. kubeadm generates a token that additional nodes can use to register themselves +with the master in future. + +1. kubeadm generates a self-signed CA using openssl to provision identities +for each node in the cluster, and for the API server to secure communication +with clients. + +1. Outputting a kubeconfig file for the kubelet to use to connect to the API server, +as well as an additional kubeconfig file for administration. + +1. kubeadm generates Kubernetes resource manifests for the API server, controller manager +and scheduler, and placing them in `/etc/kubernetes/manifests`. The kubelet watches +this directory for static resources to create on startup. These are the core +components of Kubernetes, and once they are up and running we can use `kubectl` +to set up/manage any additional components. + +1. kubeadm installs any add-on components, such as DNS or discovery, via the API server. + +## Usage + +Fields that support multiple values do so either with comma separation, or by specifying +the flag multiple times. + +### `kubeadm init` + +It is usually sufficient to run `kubeadm init` without any flags, +but in some cases you might like to override the default behaviour. +Here we specify all the flags that can be used to customise the Kubernetes +installation. + +- `--api-advertise-addresses` (multiple values are allowed) +- `--api-external-dns-names` (multiple values are allowed) + +By default, `kubeadm init` automatically detects IP addresses and uses +these to generate certificates for the API server. This uses the IP address +of the default network interface. If you would like to access the API server +through a different IP address, or through a hostname, you can override these +defaults with `--api-advertise-addresses` and `--api-external-dns-names`. +For example, to generate certificates that verify the API server at addresses +`10.100.245.1` and `100.123.121.1`, you could use +`--api-advertise-addresses=10.100.245.1,100.123.121.1`. To allow it to be accessed +with a hostname, `--api-external-dns-names=kubernetes.example.com,kube.example.com` +Specifying `--api-advertise-addresses` disables auto detection of IP addresses. + +- `--cloud-provider` + +Currently, `kubeadm init` does not provide autodetection of cloud provider. +This means that load balancing and persistent volumes are not supported out +of the box. You can specify a cloud provider using `--cloud-provider`. +Valid values are the ones supported by `controller-manager`, namely `"aws"`, +`"azure"`, `"cloudstack"`, `"gce"`, `"mesos"`, `"openstack"`, `"ovirt"`, +`"rackspace"`, `"vsphere"`. In order to provide additional configuration for +the cloud provider, you should create a `/etc/kubernetes/cloud-config.json` +file manually, before running `kubeadm init`. `kubeadm` automatically +picks those settings up and ensures other nodes are configured correctly. +You must also set the `--cloud-provider` and `--cloud-config` parameters +yourself by editing the `/etc/systemd/system/kubelet.service.d/10-kubeadm.conf` +file appropriately. + +- `--external-etcd-cafile` etcd certificate authority file +- `--external-etcd-endpoints` (multiple values are allowed) +- `--external-etcd-certfile` etcd client certificate file +- `--external-etcd-keyfile` etcd client key file + +By default, `kubeadm` deploys a single node etcd cluster on the master +to store Kubernetes state. This means that any failure on the master node +requires you to rebuild your cluster from scratch. Currently `kubeadm init` +does not support automatic deployment of a highly available etcd cluster. +If you would like to use your own etcd cluster, you can override this +behaviour with `--external-etcd-endpoints`. `kubeadm` supports etcd client +authentication using the `--external-etcd-cafile`, `--external-etcd-certfile` +and `--external-etcd-keyfile` flags. + +- `--pod-network-cidr` + +By default, `kubeadm init` does not set node CIDR's for pods and allows you to +bring your own networking configuration through a CNI compatible network +controller addon such as [Weave Net](https://github.com/weaveworks/weave-kube), +[Calico](https://github.com/projectcalico/calico-containers/tree/master/docs/cni/kubernetes/manifests/kubeadm) +or [Canal](https://github.com/tigera/canal/tree/master/k8s-install/kubeadm). +If you are using a compatible cloud provider or flannel, you can specify a +subnet to use for each pod on the cluster with the `--pod-network-cidr` flag. +This should be a minimum of a /16 so that kubeadm is able to assign /24 subnets +to each node in the cluster. + +- `--service-cidr` (default '10.12.0.0/12') + +You can use the `--service-cidr` flag to override the subnet Kubernetes uses to +assign pods IP addresses. If you do, you will also need to update the +`/etc/systemd/system/kubelet.service.d/10-kubeadm.conf` file to reflect this change +else DNS will not function correctly. + +- `--service-dns-domain` (default 'cluster.local') + +By default, `kubeadm init` deploys a cluster that assigns services with DNS names +`..svc.cluster.local`. You can use the `--service-dns-domain` +to change the DNS name suffix. Again, you will need to update the +`/etc/systemd/system/kubelet.service.d/10-kubeadm.conf` file accordingly else DNS will +not function correctly. + +- `--token` + +By default, `kubeadm init` automatically generates the token used to initialise +each new node. If you would like to manually specify this token, you can use the +`--token` flag. The token must be of the format '<6 character string>.<16 character string>'. + +- `--use-kubernetes-version` (default 'v1.4.1') the kubernetes version to initialise + +`kubeadm` was originally built for Kubernetes version **v1.4.0**, older versions are not +supported. With this flag you can try any future version, e.g. **v1.5.0-beta.1** +whenever it comes out (check [releases page](https://github.com/kubernetes/kubernetes/releases) +for a full list of available versions). + +### `kubeadm join` + +`kubeadm join` has one mandatory flag, the token used to secure cluster bootstrap, +and one mandatory argument, the master IP address. + +Here's an example on how to use it: + +`kubeadm join --token=the_secret_token 192.168.1.1` + +- `--token=` + +By default, when `kubeadm init` runs, a token is generated and revealed in the output. +That's the token you should use here. + +## Troubleshooting + +* Some users on RHEL/CentOS 7 have reported issues with traffic being routed incorrectly due to iptables being bypassed. You should ensure `net.bridge.bridge-nf-call-iptables` is set to 1 in your sysctl config, eg. + +``` +# cat /etc/sysctl.d/k8s.conf +net.bridge.bridge-nf-call-ip6tables = 1 +net.bridge.bridge-nf-call-iptables = 1 +``` From ced57785dfa3ec1ebc6e3eee4114c1ecd95c075d Mon Sep 17 00:00:00 2001 From: Robert Ross Date: Mon, 10 Oct 2016 19:39:14 -0400 Subject: [PATCH 060/688] Fix code fencing for DNS validation example --- docs/admin/dns.md | 3 +++ 1 file changed, 3 insertions(+) diff --git a/docs/admin/dns.md b/docs/admin/dns.md index 9470a6c7c7..cc132201aa 100644 --- a/docs/admin/dns.md +++ b/docs/admin/dns.md @@ -166,12 +166,15 @@ busybox 1/1 Running 0 ``` ### Validate DNS works + Once that pod is running, you can exec nslookup in that environment: + ``` kubectl exec busybox -- nslookup kubernetes.default ``` You should see something like: + ``` Server: 10.0.0.10 Address 1: 10.0.0.10 From 23d77196631642e67a8d73c15fa7da1fdd5c7939 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Lucas=20K=C3=A4ldstr=C3=B6m?= Date: Tue, 11 Oct 2016 09:01:12 +0300 Subject: [PATCH 061/688] Move kubeadm reference, add a navigation link to it and assignees --- _data/guides.yml | 2 ++ .../kubeadm-reference.md => admin/kubeadm.md} | 9 ++++++++- docs/getting-started-guides/kubeadm.md | 2 +- 3 files changed, 11 insertions(+), 2 deletions(-) rename docs/{user-guide/kubeadm-reference.md => admin/kubeadm.md} (99%) diff --git a/_data/guides.yml b/_data/guides.yml index ab622a0284..40d47b08d6 100644 --- a/_data/guides.yml +++ b/_data/guides.yml @@ -252,6 +252,8 @@ toc: path: /docs/admin/ - title: Cluster Management Guide path: /docs/admin/cluster-management/ + - title: kubeadm reference + path: /docs/admin/kubeadm/ - title: Installing Addons path: /docs/admin/addons/ - title: Sharing a Cluster with Namespaces diff --git a/docs/user-guide/kubeadm-reference.md b/docs/admin/kubeadm.md similarity index 99% rename from docs/user-guide/kubeadm-reference.md rename to docs/admin/kubeadm.md index 49ba3663e6..57a21528c2 100644 --- a/docs/user-guide/kubeadm-reference.md +++ b/docs/admin/kubeadm.md @@ -1,4 +1,11 @@ -# kubeadm reference +--- +assignees: +- mikedanese +- luxas +- errordeveloper + +--- + This document provides information on how to use kubeadm's advanced options. diff --git a/docs/getting-started-guides/kubeadm.md b/docs/getting-started-guides/kubeadm.md index 32b91ccdb9..34e3ea7656 100644 --- a/docs/getting-started-guides/kubeadm.md +++ b/docs/getting-started-guides/kubeadm.md @@ -211,7 +211,7 @@ See the [list of add-ons](/docs/admin/addons/) to explore other add-ons, includi * Learn more about [Kubernetes concepts and kubectl in Kubernetes 101](/docs/user-guide/walkthrough/). * Install Kubernetes with [a cloud provider configurations](/docs/getting-started-guides/) to add Load Balancer and Persistent Volume support. -* Learn about `kubeadm`'s advanced usage on the [advanced reference doc](/docs/user-guide/kubeadm-reference/) +* Learn about `kubeadm`'s advanced usage on the [advanced reference doc](/docs/admin/kubeadm/) ## Cleanup From 75a3e77452891485f532593dca099bf36e4db5f6 Mon Sep 17 00:00:00 2001 From: Ilya Dmitrichenko Date: Tue, 11 Oct 2016 20:49:58 +0100 Subject: [PATCH 062/688] Note about workaround for https://github.com/kubernetes/kubernetes/issues/34566 --- docs/getting-started-guides/kubeadm.md | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/docs/getting-started-guides/kubeadm.md b/docs/getting-started-guides/kubeadm.md index 34e3ea7656..d5232ad16c 100644 --- a/docs/getting-started-guides/kubeadm.md +++ b/docs/getting-started-guides/kubeadm.md @@ -254,3 +254,9 @@ Please note: `kubeadm` is a work in progress and these limitations will be addre 1. There is not yet an easy way to generate a `kubeconfig` file which can be used to authenticate to the cluster remotely with `kubectl` on, for example, your workstation. Workaround: copy the kubelet's `kubeconfig` from the master: use `scp root@:/etc/kubernetes/admin.conf .` and then e.g. `kubectl --kubeconfig ./admin.conf get nodes` from your workstation. + +1. If you are using VirtualBox (directly or via Vagrant), you will need to ensure that `hostname -i` returns a routable IP address (i.e. one on the second network interface, not the first one). + By default, it doesn't do this and kubelet ends-up using first non-loopback network interface, which is usually NATed. + Workaround: Modify `/etc/hosts`, take a look at this [`Vagrantfile`][ubuntu-vagrantfile] for how you this can be achieved. + +[ubuntu-vagrantfile]: https://github.com/errordeveloper/k8s-playground/blob/22dd39dfc06111235620e6c4404a96ae146f26fd/Vagrantfile#L11), From 791000cbe4f771b4c48e7bb330db52ac3e1ff0c1 Mon Sep 17 00:00:00 2001 From: Steve Perry Date: Tue, 11 Oct 2016 14:36:18 -0700 Subject: [PATCH 063/688] Add replica count to tutorial. (#1434) --- .../deployment-scale.yaml | 16 +++++++++++++ .../run-stateless-application-deployment.md | 24 +++++++++++++++++++ 2 files changed, 40 insertions(+) create mode 100644 docs/tutorials/stateless-application/deployment-scale.yaml diff --git a/docs/tutorials/stateless-application/deployment-scale.yaml b/docs/tutorials/stateless-application/deployment-scale.yaml new file mode 100644 index 0000000000..2968b88360 --- /dev/null +++ b/docs/tutorials/stateless-application/deployment-scale.yaml @@ -0,0 +1,16 @@ +apiVersion: extensions/v1beta1 +kind: Deployment +metadata: + name: nginx-deployment +spec: + replicas: 4 + template: + metadata: + labels: + app: nginx + spec: + containers: + - name: nginx + image: nginx:1.8 # Update the version of nginx from 1.7.9 to 1.8 + ports: + - containerPort: 80 diff --git a/docs/tutorials/stateless-application/run-stateless-application-deployment.md b/docs/tutorials/stateless-application/run-stateless-application-deployment.md index 70aeb925c2..20a7aff243 100644 --- a/docs/tutorials/stateless-application/run-stateless-application-deployment.md +++ b/docs/tutorials/stateless-application/run-stateless-application-deployment.md @@ -94,6 +94,30 @@ specifies that the deployment should be updated to use nginx 1.8. kubectl get pods -l app=nginx +### Scaling the application by increasing the replica count + +You can increase the number of pods in your Deployment by applying a new YAML +file. This YAML file sets `replicas` to 4, which specifies that the Deployment +should have four pods: + +{% include code.html language="yaml" file="deployment-scale.yaml" ghlink="/docs/tutorials/stateless-application/deployment-scale.yaml" %} + +1. Apply the new YAML file: + + kubectl apply -f $REPO/docs/tutorials/stateless-application/deployment-scale.yaml + +1. Verify that the Deployment has four pods: + + kubectl get pods + + The output is similar to this: + + NAME READY STATUS RESTARTS AGE + nginx-deployment-148880595-4zdqq 1/1 Running 0 25s + nginx-deployment-148880595-6zgi1 1/1 Running 0 25s + nginx-deployment-148880595-fxcez 1/1 Running 0 2m + nginx-deployment-148880595-rwovn 1/1 Running 0 2m + ### Deleting a deployment Delete the deployment by name: From 5b8d8332fce581a08bf8aeabed67605ea011e4c2 Mon Sep 17 00:00:00 2001 From: Antoine Pelisse Date: Fri, 7 Oct 2016 12:41:56 -0700 Subject: [PATCH 064/688] Points to documentation about running privileged containers --- docs/user-guide/volumes.md | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/docs/user-guide/volumes.md b/docs/user-guide/volumes.md index e33bd3e018..a7e0b3c2ba 100644 --- a/docs/user-guide/volumes.md +++ b/docs/user-guide/volumes.md @@ -126,9 +126,10 @@ Watch out when using this type of volume, because: behave differently on different nodes due to different files on the nodes * when Kubernetes adds resource-aware scheduling, as is planned, it will not be able to account for resources used by a `hostPath` -* the directories created on the underlying hosts are only writable by root, you either need - to run your process as root in a privileged container or modify the file permissions on - the host to be able to write to a `hostPath` volume +* the directories created on the underlying hosts are only writable by root. You + either need to run your process as root in a + [privileged container](/docs/user-guide/security-context) or modify the file + permissions on the host to be able to write to a `hostPath` volume #### Example pod From a250e18e2f3d91848ff07f5fad4c25677e2d8a80 Mon Sep 17 00:00:00 2001 From: Steel Brain Date: Wed, 12 Oct 2016 05:44:51 +0530 Subject: [PATCH 065/688] :bug: Fix broken JSON format --- docs/user-guide/secrets/index.md | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/docs/user-guide/secrets/index.md b/docs/user-guide/secrets/index.md index 4da56a3cca..f9931bfbf5 100644 --- a/docs/user-guide/secrets/index.md +++ b/docs/user-guide/secrets/index.md @@ -284,7 +284,7 @@ For example, you can specify a default mode like this: "image": "redis", "volumeMounts": [{ "name": "foo", - "mountPath": "/etc/foo", + "mountPath": "/etc/foo" }] }], "volumes": [{ @@ -322,7 +322,7 @@ permission for different files like this: "image": "redis", "volumeMounts": [{ "name": "foo", - "mountPath": "/etc/foo", + "mountPath": "/etc/foo" }] }], "volumes": [{ From 1a0c8a9766f85944caa64c5e603b844a9c7c0f27 Mon Sep 17 00:00:00 2001 From: Clemens Tolboom Date: Wed, 12 Oct 2016 13:01:50 +0200 Subject: [PATCH 066/688] Resolve push denied I failed pushing until switched account as reported in http://stackoverflow.com/a/39996807/598513 --- docs/hellonode.md | 2 ++ 1 file changed, 2 insertions(+) diff --git a/docs/hellonode.md b/docs/hellonode.md index 602a383a5b..dce486b51d 100755 --- a/docs/hellonode.md +++ b/docs/hellonode.md @@ -150,6 +150,8 @@ gcloud docker push gcr.io/$PROJECT_ID/hello-node:v1 If all goes well, you should be able to see the container image listed in the console: *Compute > Container Engine > Container Registry*. We now have a project-wide Docker image available which Kubernetes can access and orchestrate. +If you get a __denied: Unable to create the repository, please check that you have access to do so.__ check whether you push as the right user. Use `gcloud auth list` and then `gcloud config set account example@gmail.com` + ![image](/images/hellonode/image_10.png) ## Create your Kubernetes Cluster From 4d5d29567da6c2e71505a993c9ff1f63db0eaa85 Mon Sep 17 00:00:00 2001 From: Ilya Dmitrichenko Date: Tue, 11 Oct 2016 07:51:54 +0100 Subject: [PATCH 067/688] Cosmetic tweaks to main kubeadm doc - clean-up the reset script - remove details tag --- docs/getting-started-guides/kubeadm.md | 22 ++++++++++++---------- 1 file changed, 12 insertions(+), 10 deletions(-) diff --git a/docs/getting-started-guides/kubeadm.md b/docs/getting-started-guides/kubeadm.md index d5232ad16c..f4f4c15211 100644 --- a/docs/getting-started-guides/kubeadm.md +++ b/docs/getting-started-guides/kubeadm.md @@ -45,7 +45,7 @@ For each host in turn: * SSH into the machine and become `root` if you are not already (for example, run `sudo su -`). * If the machine is running Ubuntu 16.04, run: - # curl https://packages.cloud.google.com/apt/doc/apt-key.gpg | apt-key add - + # curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | apt-key add - # cat < /etc/apt/sources.list.d/kubernetes.list deb http://apt.kubernetes.io/ kubernetes-xenial main EOF @@ -218,15 +218,17 @@ See the [list of add-ons](/docs/admin/addons/) to explore other add-ons, includi * To uninstall the socks shop, run `kubectl delete -f microservices-demo/deploy/kubernetes/manifests` on the master. -* To undo what `kubeadm` did, simply delete the machines you created for this tutorial, or run the script below and then uninstall the packages. -
      - 
      systemctl stop kubelet;
-  docker rm -f $(docker ps -q); mount | grep "/var/lib/kubelet/*" | awk '{print $3}' | xargs umount 1>/dev/null 2>/dev/null;
-  rm -rf /var/lib/kubelet /etc/kubernetes /var/lib/etcd /etc/cni;
-  ip link set cbr0 down; ip link del cbr0;
-  ip link set cni0 down; ip link del cni0;
-  systemctl start kubelet
      -
      +* To undo what `kubeadm` did, simply delete the machines you created for this tutorial, or run the script below and then start over or uninstall the packages. + +
      + Reset local state: + 
      systemctl stop kubelet;
+  docker rm -f -v $(docker ps -q);
+  find /var/lib/kubelet | xargs -n 1 findmnt -n -t tmpfs -o TARGET -T | uniq | xargs -r umount -v;
+  rm -r -f /etc/kubernetes /var/lib/kubelet /var/lib/etcd;
+
      + If you wish to start over, run `systemctl start kubelet` followed by `kubeadm init` or `kubeadm join`. + ## Feedback From 3c94a1880ebf8125f63f549eee7635729285f250 Mon Sep 17 00:00:00 2001 From: Andrew Shu Date: Wed, 12 Oct 2016 09:16:24 -0700 Subject: [PATCH 068/688] Tutorial: Fix broken links on Basics Overview page --- docs/tutorials/kubernetes-basics/index.html | 26 ++++++++++----------- 1 file changed, 13 insertions(+), 13 deletions(-) diff --git a/docs/tutorials/kubernetes-basics/index.html b/docs/tutorials/kubernetes-basics/index.html index 723639552b..d678461e41 100644 --- a/docs/tutorials/kubernetes-basics/index.html +++ b/docs/tutorials/kubernetes-basics/index.html @@ -42,49 +42,49 @@
      - +
      -
      1. Create a Kubernetes cluster
       +
      1. Create a Kubernetes cluster
      - +
      -
      2. Deploy an app
       +
      2. Deploy an app
      - +
      -
      3. Explore your app
       +
      3. Explore your app
      - +
      -
      4. Expose your app publicly
       +
      4. Expose your app publicly
      - +
      -
      5. Scale up your app
       +
      5. Scale up your app
      - +
      -
      6. Update your app
       +
      6. Update your app
      @@ -93,7 +93,7 @@
      - Start the tutorial› + Start the tutorial›
      From cbb4d33b3edc8d2c889ad85618495db87a4ade28 Mon Sep 17 00:00:00 2001 From: Jess Frazelle Date: Wed, 12 Oct 2016 14:17:27 -0700 Subject: [PATCH 069/688] fix 404 redirect Signed-off-by: Jess Frazelle --- 404.md | 63 ++----------------------------------------------- js/redirects.js | 60 ++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 62 insertions(+), 61 deletions(-) create mode 100644 js/redirects.js diff --git a/404.md b/404.md index bf053c1e3b..e644c19ed2 100644 --- a/404.md +++ b/404.md @@ -3,66 +3,7 @@ layout: docwithnav title: 404 Error! permalink: /404.html --- - + + Sorry, this page was not found. :( diff --git a/js/redirects.js b/js/redirects.js new file mode 100644 index 0000000000..dc3cbb56ed --- /dev/null +++ b/js/redirects.js @@ -0,0 +1,60 @@ +$( document ).ready(function() { + var oldURLs=["/README.md","/README.html",".html",".md","/v1.1/","/v1.0/"]; + var fwdDirs=["examples/","cluster/","docs/devel","docs/design"]; + var doRedirect = false; + var notHere = false; + var forwardingURL=window.location.href; + + var redirects = [{ + "from": "third_party/swagger-ui", + "to": "http://kubernetes.io/kubernetes/third_party/swagger-ui/" + }, + { + "from": "resource-quota", + "to": "http://kubernetes.io/docs/admin/resourcequota/" + }, + { + "from": "horizontal-pod-autoscaler", + "to": "http://kubernetes.io/docs/user-guide/horizontal-pod-autoscaling/" + }, + { + "from": "docs/roadmap", + "to": "https://github.com/kubernetes/kubernetes/milestones/" + }, + { + "from": "api-ref/", + "to": "https://github.com/kubernetes/kubernetes/milestones/" + }, + { + "from": "docs/user-guide/overview", + "to": "http://kubernetes.io/docs/whatisk8s/" + }]; + + for (i=0;i -1){ + notHere = true; + window.location.replace(redirects[i].to); + } + } + + for (i=0;i -1){ + var urlPieces = forwardingURL.split(fwdDirs[i]); + var newURL = "https://github.com/kubernetes/kubernetes/tree/{{page.githubbranch}}/" + fwdDirs[i] + urlPieces[1]; + notHere = true; + window.location.replace(newURL); + } + } + if (!notHere) { + for (i=0;i -1 && + forwardingURL.indexOf("404.html") < 0){ + doRedirect=true; + forwardingURL=forwardingURL.replace(oldURLs[i],"/"); + } + } + if (doRedirect){ + window.location.replace(forwardingURL); + }; + } +}); From 55076d553b5b7a6e6128aa5ebf6dcbe3c3320d11 Mon Sep 17 00:00:00 2001 From: Jess Frazelle Date: Wed, 12 Oct 2016 15:27:21 -0700 Subject: [PATCH 070/688] exclude sitemap, css and 404 from sitemap Signed-off-by: Jess Frazelle --- 404.md | 1 + robots.txt | 2 ++ sitemap.xml | 6 +++--- 3 files changed, 6 insertions(+), 3 deletions(-) diff --git a/404.md b/404.md index e644c19ed2..3d32e81bcf 100644 --- a/404.md +++ b/404.md @@ -2,6 +2,7 @@ layout: docwithnav title: 404 Error! permalink: /404.html +no_canonical: true --- diff --git a/robots.txt b/robots.txt index 187d7c94bb..9bb39d8dbd 100644 --- a/robots.txt +++ b/robots.txt @@ -3,5 +3,7 @@ User-agent: * Disallow: /legacy/ Disallow: /v1.0/ Disallow: /v1.1/ +Disallow: /404/ +Disallow: 404.html SITEMAP: http://kubernetes.io/sitemap.xml diff --git a/sitemap.xml b/sitemap.xml index a965f4a570..ff1dd0d398 100644 --- a/sitemap.xml +++ b/sitemap.xml @@ -11,8 +11,8 @@ http://kubernetes.io/ {{ site.time | date_to_xmlschema }} -{% for page in site.pages %} +{% for page in site.pages %}{% if page.url != "/404.html" and page.url != "/sitemap.xml" and page.url != "/css/styles.css" %} http://kubernetes.io{{ page.url }} {% if page.date %}{{ page.date | date_to_xmlschema }}{% else %}{{ site.time | date_to_xmlschema }}{% endif %} -{% endfor %} - \ No newline at end of file +{% endif %}{% endfor %} + From d061e531931117d587a822334b02c804d7ad0e98 Mon Sep 17 00:00:00 2001 From: Jess Frazelle Date: Wed, 12 Oct 2016 13:43:39 -0700 Subject: [PATCH 071/688] dont set canonical tag for 404 page Signed-off-by: Jess Frazelle --- 404.md | 1 + _includes/head-header.html | 2 +- 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/404.md b/404.md index e644c19ed2..3d32e81bcf 100644 --- a/404.md +++ b/404.md @@ -2,6 +2,7 @@ layout: docwithnav title: 404 Error! permalink: /404.html +no_canonical: true --- diff --git a/_includes/head-header.html b/_includes/head-header.html index 12de81d975..0405f3699c 100644 --- a/_includes/head-header.html +++ b/_includes/head-header.html @@ -2,7 +2,7 @@ - + {% if !page.no_canonical %}{% endif %} From d054714d278551272a44da370374418164079d11 Mon Sep 17 00:00:00 2001 From: Misty De Meo Date: Wed, 12 Oct 2016 16:17:53 -0700 Subject: [PATCH 072/688] Basics: fix minor typo --- docs/tutorials/kubernetes-basics/index.html | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/tutorials/kubernetes-basics/index.html b/docs/tutorials/kubernetes-basics/index.html index d678461e41..7edee6fd53 100644 --- a/docs/tutorials/kubernetes-basics/index.html +++ b/docs/tutorials/kubernetes-basics/index.html @@ -33,7 +33,7 @@

      What can Kubernetes do for you?

      -

      With modern web services, users expect applications to be available 24/7, and developers expect to deploy new versions of those applications several times a day. Containzerization helps package software to serve these goals, enabling applications to be released and updated in an easy and fast way without downtime. Kubernetes helps you make sure those containerized applications run where and when you want, and helps them find the resources and tools they need to work. Kubernetes is a production-ready, open source platform designed with the Google's accumulated experience in container orchestration, combined with best-of-breed ideas from the community.

      +

      With modern web services, users expect applications to be available 24/7, and developers expect to deploy new versions of those applications several times a day. Containerization helps package software to serve these goals, enabling applications to be released and updated in an easy and fast way without downtime. Kubernetes helps you make sure those containerized applications run where and when you want, and helps them find the resources and tools they need to work. Kubernetes is a production-ready, open source platform designed with the Google's accumulated experience in container orchestration, combined with best-of-breed ideas from the community.

      From 8f41a65a40e6c0dcf8cc3b89699059dd00617269 Mon Sep 17 00:00:00 2001 From: Pablo Guerrero Date: Thu, 13 Oct 2016 14:43:48 +0200 Subject: [PATCH 073/688] Update index.md --- docs/admin/limitrange/index.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/admin/limitrange/index.md b/docs/admin/limitrange/index.md index 74c0957f23..0336264bc3 100644 --- a/docs/admin/limitrange/index.md +++ b/docs/admin/limitrange/index.md @@ -8,7 +8,7 @@ assignees: By default, pods run with unbounded CPU and memory limits. This means that any pod in the system will be able to consume as much CPU and memory on the node that executes the pod. -Users may want to impose restrictions on the amount of resource a single pod in the system may consume +Users may want to impose restrictions on the amount of resources a single pod in the system may consume for a variety of reasons. For example: From 81634ad38d733bf94312a0d2c696aadc3d86f7ea Mon Sep 17 00:00:00 2001 From: Jon Cope Date: Tue, 11 Oct 2016 15:45:42 -0500 Subject: [PATCH 074/688] Added optional prereq to authorize API calls --- docs/getting-started-guides/gce.md | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/docs/getting-started-guides/gce.md b/docs/getting-started-guides/gce.md index 22b1679a50..778795c3db 100644 --- a/docs/getting-started-guides/gce.md +++ b/docs/getting-started-guides/gce.md @@ -25,7 +25,8 @@ If you want to use custom binaries or pure open source Kubernetes, please contin 1. Install `gcloud` as necessary. `gcloud` can be installed as a part of the [Google Cloud SDK](https://cloud.google.com/sdk/). 1. Enable the [Compute Engine Instance Group Manager API](https://developers.google.com/console/help/new/#activatingapis) in the [Google Cloud developers console](https://console.developers.google.com). 1. Make sure that gcloud is set to use the Google Cloud Platform project you want. You can check the current project using `gcloud config list project` and change it via `gcloud config set project `. -1. Make sure you have credentials for GCloud by running ` gcloud auth login`. +1. Make sure you have credentials for GCloud by running `gcloud auth login`. +1. (Optional) In order to make API calls against GCE, you must also run `gcloud auth application-default login`. 1. Make sure you can start up a GCE VM from the command line. At least make sure you can do the [Create an instance](https://cloud.google.com/compute/docs/instances/#startinstancegcloud) part of the GCE Quickstart. 1. Make sure you can ssh into the VM without interactive prompts. See the [Log in to the instance](https://cloud.google.com/compute/docs/instances/#sshing) part of the GCE Quickstart. @@ -245,5 +246,3 @@ For support level information on all solutions, see the [Table of solutions](/do Please see the [Kubernetes docs](/docs/) for more details on administering and using a Kubernetes cluster. - - From 0ce841df60214855e3cef7ef20b20b5ae012ab69 Mon Sep 17 00:00:00 2001 From: bobsky Date: Thu, 13 Oct 2016 13:23:31 -0700 Subject: [PATCH 075/688] Update federated-ingress.md minor correction, feature is in alpha not beta. --- docs/user-guide/federation/federated-ingress.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/user-guide/federation/federated-ingress.md b/docs/user-guide/federation/federated-ingress.md index 42e5ad536d..87965a3fc7 100644 --- a/docs/user-guide/federation/federated-ingress.md +++ b/docs/user-guide/federation/federated-ingress.md @@ -18,7 +18,7 @@ automatically checks the health of the pods comprising the service, and avoids sending requests to unresponsive or slow pods (or entire unresponsive clusters). -Federated Ingress is released as a beta feature, and supports Google Cloud (GKE, +Federated Ingress is released as an alpha feature, and supports Google Cloud Platform (GKE, GCE and hybrid scenarios involving both) in Kubernetes v1.4. Work is under way to support other cloud providers such as AWS, and other hybrid cloud scenarios (e.g. services spanning private on-premise as well as public cloud Kubernetes From 5d60ea4488d566d374c90ce3e11bb6fb080145ec Mon Sep 17 00:00:00 2001 From: seperry53test Date: Fri, 14 Oct 2016 11:38:58 -0700 Subject: [PATCH 076/688] Update page-templates.md (#1465) --- docs/contribute/page-templates.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/contribute/page-templates.md b/docs/contribute/page-templates.md index da77bfc38e..d70077e246 100644 --- a/docs/contribute/page-templates.md +++ b/docs/contribute/page-templates.md @@ -12,7 +12,7 @@
    • Concept
    -

    The page templates are in the _includes/templates directory of the kubernetes.github.io repository. +

    The page templates are in the _includes/templates directory of the kubernetes.github.io repository.

    Task template

    From 9b4654451716948d412815d1049c5ed0d1e5f62a Mon Sep 17 00:00:00 2001 From: anbern Date: Fri, 14 Oct 2016 22:25:23 +0200 Subject: [PATCH 077/688] Update hellonode.md Docker for Windows 1.12/1.12.1 does not work as described when pushing images to the google container image registry - it stops with an error message. It takes a long time (6h to several days) to find a solution and since Docker is becoming more popular on windows this seems worth mentioning. --- docs/hellonode.md | 2 ++ 1 file changed, 2 insertions(+) diff --git a/docs/hellonode.md b/docs/hellonode.md index 602a383a5b..a4f228018c 100755 --- a/docs/hellonode.md +++ b/docs/hellonode.md @@ -152,6 +152,8 @@ If all goes well, you should be able to see the container image listed in the co ![image](/images/hellonode/image_10.png) +**Note:** *Docker for Windows, Version 1.12 or 1.12.1, does not yet support this procedure. Instead, it replies with the message 'denied: Unable to access the repository; please check that you have permission to access it'. A bugfix is available at http://stackoverflow.com/questions/39277986/unable-to-push-to-google-container-registry-unable-to-access-the-repository?answertab=votes#tab-top.* + ## Create your Kubernetes Cluster A cluster consists of a Master API server and a set of worker VMs called Nodes. From bf18da533dff4970ad66693ece6369ebc5f26575 Mon Sep 17 00:00:00 2001 From: Mike Spreitzer Date: Sat, 15 Oct 2016 00:42:43 -0400 Subject: [PATCH 078/688] Documented FLANNEL_BACKEND and ADMISSION_CONTROL in cluster/ubuntu doc --- docs/getting-started-guides/ubuntu.md | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/docs/getting-started-guides/ubuntu.md b/docs/getting-started-guides/ubuntu.md index 3018bd026e..56ef9d9515 100644 --- a/docs/getting-started-guides/ubuntu.md +++ b/docs/getting-started-guides/ubuntu.md @@ -116,7 +116,13 @@ that conflicts with your own private network range. The `FLANNEL_NET` variable defines the IP range used for flannel overlay network, should not conflict with above `SERVICE_CLUSTER_IP_RANGE`. You can optionally provide additional Flannel network configuration -through `FLANNEL_OTHER_NET_CONFIG`, as explained in `cluster/ubuntu/config-default.sh`. +through `FLANNEL_BACKEND` and `FLANNEL_OTHER_NET_CONFIG`, as explained in `cluster/ubuntu/config-default.sh`. + +The default setting for `ADMISSION_CONTROL` is right for the latest +release of Kubernetes, but if you choose an earlier release then you +might want a different setting. See +[the admisson control doc](http://kubernetes.io/docs/admin/admission-controllers/#is-there-a-recommended-set-of-plug-ins-to-use) +for the recommended settings for various releases. **Note:** When deploying, master needs to be connected to the Internet to download the necessary files. If your machines are located in a private network that need proxy setting to connect the Internet, From 93d5887c4b0e509849dc8602e6dfeac231a67d02 Mon Sep 17 00:00:00 2001 From: steveperry-53 Date: Fri, 14 Oct 2016 17:45:21 -0700 Subject: [PATCH 079/688] Write new material about how to contribute to the Kubernetes docs. --- README.md | 81 ++------------- _config.yml | 3 + _data/support.yml | 6 ++ docs/contribute/create-pull-request.md | 94 ++++++++++++++++++ docs/contribute/page-templates.md | 2 +- .../contribute/stage-documentation-changes.md | 98 +++++++++++++++++++ docs/contribute/write-new-topic.md | 83 ++++++++++++++++ docs/index.md | 2 +- .../http-proxy-access-api.md | 90 ----------------- editdocs.md | 42 -------- 10 files changed, 295 insertions(+), 206 deletions(-) create mode 100644 docs/contribute/create-pull-request.md create mode 100644 docs/contribute/stage-documentation-changes.md create mode 100644 docs/contribute/write-new-topic.md delete mode 100644 docs/tasks/access-kubernetes-api/access-kubernetes-api/http-proxy-access-api.md delete mode 100644 editdocs.md diff --git a/README.md b/README.md index a468c1f947..de5c7c2df3 100644 --- a/README.md +++ b/README.md @@ -4,66 +4,20 @@ Welcome! We are very pleased you want to contribute to the documentation and/or You can click the "Fork" button in the upper-right area of the screen to create a copy of our site on your GitHub account called a "fork." Make any changes you want in your fork, and when you are ready to send those changes to us, go to the index page for your fork and click "New Pull Request" to let us know about it. -## Staging the site on GitHub Pages +For more information about contributing to the Kubernetes documentation, see: -If you want to see your changes staged without having to install anything locally, remove the CNAME file in this directory and -change the name of the fork to be: +* [Creating a Documentation Pull Request](/docs/contribute/create-pull-request/) +* [Writing a New Topic](/docs/contribute/write-new-topic/) +* [Staging Your Documentation Changes](/docs/contribute/stage-documentation-changes/) +* [Using Page Templates](/docs/contribute/page-templates/) - YOUR_GITHUB_USERNAME.github.io +## Release Branch Staging -Then make your changes. +The Kubernetes site maintains staged versions at a subdomain provided by Netlify. Every PR for the Kubernetes site, either against the master branch or the upcoming release branch, is staged automatically. -When you visit [http://YOUR_GITHUB_USERNAME.github.io](http://YOUR_GITHUB_USERNAME.github.io) you should see a special-to-you version of the site that contains the changes you just made. - -## Staging the site locally (using Docker) - -Don't like installing stuff? Download and run a local staging server with a single `docker run` command. - - git clone https://github.com/kubernetes/kubernetes.github.io.git - cd kubernetes.github.io - docker run -ti --rm -v "$PWD":/k8sdocs -p 4000:4000 gcr.io/google-samples/k8sdocs:1.0 - -Then visit [http://localhost:4000](http://localhost:4000) to see our site. Any changes you make on your local machine will be automatically staged. - -If you're interested you can view [the Dockerfile for this image](https://github.com/kubernetes/kubernetes.github.io/blob/master/staging-container/Dockerfile). - -## Staging the site locally (from scratch setup) - -The below commands to setup your environment for running GitHub pages locally. Then, any edits you make will be viewable -on a lightweight webserver that runs on your local machine. - -This will typically be the fastest way (by far) to iterate on docs changes and see them staged, once you get this set up, but it does involve several install steps that take awhile to complete, and makes system-wide modifications. - -Install Ruby 2.2 or higher. If you're on Linux, run these commands: - - apt-get install software-properties-common - apt-add-repository ppa:brightbox/ruby-ng - apt-get install ruby2.2 - apt-get install ruby2.2-dev - -* If you're on a Mac, follow [these instructions](https://gorails.com/setup/osx/). -* If you're on a Windows machine you can use the [Ruby Installer](http://rubyinstaller.org/downloads/). During the installation make sure to check the option for *Add Ruby executables to your PATH*. - -The remainder of the steps should work the same across operating systems. - -To confirm you've installed Ruby correctly, at the command prompt run `gem --version` and you should get a response with your version number. Likewise you can confirm you have Git installed properly by running `git --version`, which will respond with your version of Git. - -Install the GitHub Pages package, which includes Jekyll: - - gem install github-pages - -Clone our site: - - git clone https://github.com/kubernetes/kubernetes.github.io.git - -Make any changes you want. Then, to see your changes locally: - - cd kubernetes.github.io - jekyll serve - -Your copy of the site will then be viewable at: [http://localhost:4000](http://localhost:4000) -(or wherever Jekyll tells you). +The staging site for the next upcoming Kubernetes release is here: [http://kubernetes-io-vnext-staging.netlify.com/](http://kubernetes-io-vnext-staging.netlify.com/) +The staging site reflects the current state of what's been merged in the release branch, or in other words, what the docs will look like for the next upcoming release. It's automatically updated as new PRs get merged. ## GitHub help @@ -135,23 +89,6 @@ That, of course, will send users to: (Or whatever Kubernetes release that docs branch is associated with.) -## Branch structure - -The current version of the website is served out of the `master` branch. - -All versions of the site that relate to past and future versions will be named after their Kubernetes release number. For example, [the old branch for the 1.1 docs is called `release-1.1`](https://github.com/kubernetes/kubernetes.github.io/tree/release-1.1). - -Changes in the "docsv2" branch (where we are testing a revamp of the docs) are automatically staged here: -http://k8sdocs.github.io/docs/tutorials/ - -Changes in the "release-1.1" branch (for k8s v1.1 docs) are automatically staged here: -http://kubernetes-v1-1.github.io/ - -Changes in the "release-1.3" branch (for k8s v1.3 docs) are automatically staged here: -http://kubernetes-v1-3.github.io/ - -Editing of these branches will kick off a build using Travis CI that auto-updates these URLs; you can monitor the build progress at [https://travis-ci.org/kubernetes/kubernetes.github.io](https://travis-ci.org/kubernetes/kubernetes.github.io). - ## Config yaml guidelines Guidelines for config yamls that are included in the site docs. These diff --git a/_config.yml b/_config.yml index 5094499bfe..4c398d8d57 100644 --- a/_config.yml +++ b/_config.yml @@ -27,3 +27,6 @@ defaults: showedit: true permalink: pretty + +gems: + - jekyll-redirect-from diff --git a/_data/support.yml b/_data/support.yml index d287f0ecaa..e280c827d7 100644 --- a/_data/support.yml +++ b/_data/support.yml @@ -6,6 +6,12 @@ toc: - title: Contributing to the Kubernetes Docs section: + - title: Creating a Documentation Pull Request + path: /docs/contribute/create-pull-request/ + - title: Writing a New Topic + path: /docs/contribute/write-new-topic/ + - title: Staging Your Documentation Changes + path: /docs/contribute/stage-documentation-changes/ - title: Using Page Templates path: /docs/contribute/page-templates/ diff --git a/docs/contribute/create-pull-request.md b/docs/contribute/create-pull-request.md new file mode 100644 index 0000000000..833b4abf08 --- /dev/null +++ b/docs/contribute/create-pull-request.md @@ -0,0 +1,94 @@ +--- +redirect_from: + - /editdocs/ +--- + +{% capture overview %} + +To contribute to the Kubernetes documentation, create a pull request against the +[kubernetes/kubernetes.github.io](https://github.com/kubernetes/kubernetes.github.io){: target="_blank"} +repository. This page shows how to create a pull request. + +{% endcapture %} + +{% capture prerequisites %} + +1. Create a [GitHub account](https://github.com){: target="_blank"}. + +1. Sign the +[Google Contributor License Agreement](https://cla.developers.google.com/about/google-individual){: target="_blank"}. + +1. Sign the +[Linux Contributor License Agreement](https://identity.linuxfoundation.org/projects/cncf){: target="_blank"}. + +{% endcapture %} + +{% capture steps %} + +### Creating a fork of the Kubernetes documentation repository + +1. Go to the +[kubernetes/kubernetes.github.io](https://github.com/kubernetes/kubernetes.github.io){: target="_blank"} +repository. + +1. In the upper-right corner, click **Fork**. This creates a copy of the +Kubernetes documentation repository in your GitHub account. The copy +is called a *fork*. + +### Making your changes + +1. In your GitHub account, in your fork of the Kubernetes docs, create +a new branch to use for your contribution. + +1. In your new branch, make your changes and commit them. If you want to +[write a new topic](/docs/contribute/write-new-topic/), +choose the +[page type](/docs/contribute/page-templates/) +that is the best fit for your content. + +### Submitting a pull request to the master branch + +If you want your change to be published in the released version Kubernetes docs, +create a pull request against the master branch of the Kubernetes +documentation repository. + +1. In your GitHub account, in your new branch, create a pull request +against the master branch of the kubernetes/kubernetes.github.io +repository. This opens a page that shows the status of your pull request. + +1. Click **Show all checks**. Wait for the **deploy/netlify** check to complete. +To the right of **deploy/netlify**, click **Details**. This opens a staging +site where you can verify that your changes have rendered correctly. + +1. During the next few days, check your pull request for reviewer comments. +If needed, revise your pull request by committing changes to your +new branch in your fork. + +### Submitting a pull request to the <vnext> branch + +If your documentation change should not be released until the next release of +the Kubernetes product, create a pull request against the <vnext> branch +of the Kubernetes documentation repository. The <vnext> branch has the +form `release-`, for example release-1.5. + +1. In your GitHub account, in your new branch, create a pull request +against the <vnext> branch of the kubernetes/kubernetes.github.io +repository. This opens a page that shows the status of your pull request. + +1. Click **Show all checks**. Wait for the **deploy/netlify** check to complete. +To the right of **deploy/netlify**, click **Details**. This opens a staging +site where you can verify that your changes have rendered correctly. + +1. During the next few days, check your pull request for reviewer comments. +If needed, revise your pull request by committing changes to your +new branch in your fork. + +{% endcapture %} + +{% capture whatsnext %} +* Learn about [writing a new topic](/docs/contribute/write-new-topic). +* Learn about [using page templates](/docs/contribute/page-templates/). +* Learn about [staging your changes](/docs/contribute/stage-documentation-changes). +{% endcapture %} + +{% include templates/task.md %} diff --git a/docs/contribute/page-templates.md b/docs/contribute/page-templates.md index da77bfc38e..62c4039d6a 100644 --- a/docs/contribute/page-templates.md +++ b/docs/contribute/page-templates.md @@ -71,7 +71,7 @@ Here's an interesting thing to know about the steps you just did.

    Here's an example of a published topic that uses the task template:

    -

    Using an HTTP Proxy to Access Applications in a Cluster

    +

    Using an HTTP Proxy to Access the Kubernetes API

    Tutorial template

    diff --git a/docs/contribute/stage-documentation-changes.md b/docs/contribute/stage-documentation-changes.md new file mode 100644 index 0000000000..8c01d92158 --- /dev/null +++ b/docs/contribute/stage-documentation-changes.md @@ -0,0 +1,98 @@ +--- +--- + +{% capture overview %} +This page shows how to stage content that you want to contribute +to the Kubernetes documentation. +{% endcapture %} + +{% capture prerequisites %} +Create a fork of the Kubernetes documentation repository as described in +[Creating a Documentation Pull Request](/docs/contribute/create-pull-request/). +{% endcapture %} + +{% capture steps %} + +### Staging from your GitHub account + +GitHub provides staging of content in your master branch. Note that you +might not want to merge your changes into your master branch. If that is +the case, choose another option for staging your content. + +1. In your GitHub account, in your fork, merge your changes into +the master branch. + +1. Change the name of your repository to `.github.io`, where +`` is the username of your GitHub account. + +1. Delete the `CNAME` file. + +1. View your staged content at this URL: + + https://.github.io + +### Staging a pull request + +When you create pull request against the Kubernetes documentation +repository, you can see your changes on a staging server. + +1. In your GitHub account, in your new branch, submit a pull request to the +kubernetes/kubernetes.github.io repository. This opens a page that shows the +status of your pull request. + +1. Click **Show all checks**. Wait for the **deploy/netlify** check to complete. +To the right of **deploy/netlify**, click **Details**. This opens a staging +site where you see your changes. + +### Staging locally using Docker + +You can use the k8sdocs Docker image to run a local staging server. If you're +interested, you can view the +[Dockerfile](https://github.com/kubernetes/kubernetes.github.io/blob/master/staging-container/Dockerfile){: target="_blank"} +for this image. + +1. Install Docker if you don't already have it. + +1. Clone your fork to your local development machine. + +1. In the root of your cloned repository, enter this command to start a local +web server: + + docker run -ti --rm -v "$PWD":/k8sdocs -p 4000:4000 gcr.io/google-samples/k8sdocs:1.0 + +1. View your staged content at +[http://localhost:4000](http://localhost:4000){: target="_blank"}. + +### Staging locally without Docker + +1. [Install Ruby 2.2 or later](https://www.ruby-lang.org){: target="_blank"}. + +1. [Install RubyGems](https://rubygems.org){: target="_blank"}. + +1. Verify that Ruby and RubyGems are installed: + + gem --version + +1. Install the GitHub Pages package, which includes Jekyll: + + gem install github-pages + +1. Clone your fork to your local development machine. + +1. In the root of your cloned repository, enter this command to start a local +web server: + + jekyll serve + +1. View your staged content at +[http://localhost:4000](http://localhost:4000){: target="_blank"}. + +{% endcapture %} + +{% capture whatsnext %} +* Learn about [writing a new topic](/docs/contribute/write-new-topic/). +* Learn about [using page templates](/docs/contribute/page-templates/). +* Learn about [creating a pull request](/docs/contribute/create-pull-request/). +{% endcapture %} + +{% include templates/task.md %} diff --git a/docs/contribute/write-new-topic.md b/docs/contribute/write-new-topic.md new file mode 100644 index 0000000000..c34f3cfde1 --- /dev/null +++ b/docs/contribute/write-new-topic.md @@ -0,0 +1,83 @@ +--- +--- + +{% capture overview %} +This page shows how to create a new topic for the Kubernetes docs. +{% endcapture %} + +{% capture prerequisites %} +Create a fork of the Kubernetes documentation repository as described in +[Creating a Documentation Pull Request](/docs/contribute/create-pull-request/). +{% endcapture %} + +{% capture steps %} + +### Choosing a page type + +As you prepare to write a new topic, think about which of these page types +is the best fit for your content: + + + + + + + + + + + + + + + + + + +
    TaskA task page shows how to do a single thing, typically by giving a short sequence of steps. Task pages have minimal explanation, but often provide links to conceptual topics that provide related background and knowledge.
    TutorialA tutorial page shows how to accomplish a goal that is larger than a single task. Typically a tutorial page has several sections, each of which has a sequence of steps. For example, a tutorial might provide a walkthrough of a code sample that illustrates a certain feature of Kubernetes. Tutorials can include surface-level explanations, but should link to related concept topics for deep explanations.
    ConceptA concept page explains some aspect of Kubernetes. For example, a concept page might describe the Kubernetes Deployment object and explain the role it plays as an application is deployed, scaled, and updated. Typically, concept pages don't include sequences of steps, but instead provide links to tasks or tutorials.
    + +Each page type has a +[template](/docs/contribute/page-templates/) +that you can use as you write your topic. +Using templates helps ensure consistency among topics of a given type. + +### Choosing a title and filename + +Choose a title that has the keywords you want search engines to find. +Create a filename that uses the words in your title separated by hyphens. +For example, the topic with title +[Using an HTTP Proxy to Access the Kubernetes API](/docs/tasks/access-kubernetes-api/http-proxy-access-api/) +has filename `http-proxy-access-api.md`. You don't need to put +"kubernetes" in the filename, because "kubernetes" is already in the +URL for the topic, for example: + + http://kubernetes.io/docs/tasks/access-kubernetes-api/http-proxy-access-api/ + +### Choosing a directory + +Depending on your page type, put your new file in a subdirectory of one of these: + +* /docs/tasks/ +* /docs/tutorials/ +* /docs/concepts/ + +You can put your file in an existing subdirectory, or you can create a new +subdirectory. + +### Creating an entry in the table of contents + +Depending page type, create an entry in one of these files: + +* /_data/tasks.yaml +* /_data/tutorials.yaml +* /_data/concepts.yaml + +{% endcapture %} + +{% capture whatsnext %} +* Learn about [using page templates](/docs/contribute/page-templates/). +* Learn about [staging your changes](/docs/contribute/stage-documentation-changes). +* Learn about [creating a pull request](/docs/contribute/write-new-topic). +{% endcapture %} + +{% include templates/task.md %} diff --git a/docs/index.md b/docs/index.md index 5e29c42dcb..9499ae68a2 100644 --- a/docs/index.md +++ b/docs/index.md @@ -117,7 +117,7 @@ h2, h3, h4 {

    Contribute to Our Docs

    The docs for Kubernetes are open-source, just like the code for Kubernetes itself. The docs are on GitHub Pages, so you can fork it and it will auto-stage on username.github.io, previewing your changes!

    - Write Docs for K8s + Write Docs for K8s

    Need Help?

    diff --git a/docs/tasks/access-kubernetes-api/access-kubernetes-api/http-proxy-access-api.md b/docs/tasks/access-kubernetes-api/access-kubernetes-api/http-proxy-access-api.md deleted file mode 100644 index 0c7ad2ca87..0000000000 --- a/docs/tasks/access-kubernetes-api/access-kubernetes-api/http-proxy-access-api.md +++ /dev/null @@ -1,90 +0,0 @@ ---- ---- - -{% capture overview %} -This page shows how to use an HTTP proxy to access the Kubernetes API. -{% endcapture %} - -{% capture prerequisites %} - -* Install [kubectl](http://kubernetes.io/docs/user-guide/prereqs). - -* Create a Kubernetes cluster, including a running Kubernetes - API server. One way to create a new cluster is to use - [Minikube](/docs/getting-started-guides/minikube). - -* Configure `kubectl` to communicate with your Kubernetes API server. This - configuration is done automatically if you use Minikube. - -* If you do not already have an application running in your cluster, start - a Hello world application by entering this command: - - kubectl run --image=gcr.io/google-samples/node-hello:1.0 --port=8080 - -{% endcapture %} - -{% capture steps %} - -### Using kubectl to start a proxy server - -This command starts a proxy to the Kubernetes API server: - - kubectl proxy --port=8080 - -### Exploring the Kubernetes API - -When the proxy server is running, you can explore the API using `curl`, `wget`, -or a browser. - -Get the API versions: - - curl http://localhost:8080/api/ - - { - "kind": "APIVersions", - "versions": [ - "v1" - ], - "serverAddressByClientCIDRs": [ - { - "clientCIDR": "0.0.0.0/0", - "serverAddress": "10.0.2.15:8443" - } - ] - } - -Get a list of pods: - - curl http://localhost:8080/api/v1/namespaces/default/pods - - { - "kind": "PodList", - "apiVersion": "v1", - "metadata": { - "selfLink": "/api/v1/namespaces/default/pods", - "resourceVersion": "33074" - }, - "items": [ - { - "metadata": { - "name": "kubernetes-bootcamp-2321272333-ix8pt", - "generateName": "kubernetes-bootcamp-2321272333-", - "namespace": "default", - "selfLink": "/api/v1/namespaces/default/pods/kubernetes-bootcamp-2321272333-ix8pt", - "uid": "ba21457c-6b1d-11e6-85f7-1ef9f1dab92b", - "resourceVersion": "33003", - "creationTimestamp": "2016-08-25T23:43:30Z", - "labels": { - "pod-template-hash": "2321272333", - "run": "kubernetes-bootcamp" - }, - ... - } - -{% endcapture %} - -{% capture whatsnext %} -Learn more about [kubectl proxy](/docs/user-guide/kubectl/kubectl_proxy). -{% endcapture %} - -{% include templates/task.md %} diff --git a/editdocs.md b/editdocs.md deleted file mode 100644 index 0291912aca..0000000000 --- a/editdocs.md +++ /dev/null @@ -1,42 +0,0 @@ ---- -layout: docwithnav ---- - - -

     

    - -
    - -

    Continue your edit

    - -

    Click the below link to edit the page you were just on. When you are done, press "Commit Changes" at the bottom of the screen. This will create a copy of our site on your GitHub account called a "fork." You can make other changes in your fork after it is created, if you want. When you are ready to send us all your changes, go to the index page for your fork and click "New Pull Request" to let us know about it.

    - -

    - -
    -
    - -

    Edit our site in the cloud

    - -

    Click the below button to visit the repo for our site. You can then click the "Fork" button in the upper-right area of the screen to create a copy of our site on your GitHub account called a "fork." Make any changes you want in your fork, and when you are ready to send those changes to us, go to the index page for your fork and click "New Pull Request" to let us know about it.

    - -

    Browse this site's source code

    - -
    - - - -{% include_relative README.md %} From 74791339ec923803538b755abbbfea6f20b2c111 Mon Sep 17 00:00:00 2001 From: steveperry-53 Date: Fri, 14 Oct 2016 17:45:21 -0700 Subject: [PATCH 080/688] Write new material about how to contribute to the Kubernetes docs. --- README.md | 81 ++------------- _config.yml | 3 + _data/support.yml | 6 ++ docs/contribute/create-pull-request.md | 94 ++++++++++++++++++ docs/contribute/page-templates.md | 2 +- .../contribute/stage-documentation-changes.md | 98 +++++++++++++++++++ docs/contribute/write-new-topic.md | 83 ++++++++++++++++ docs/index.md | 2 +- .../http-proxy-access-api.md | 90 ----------------- editdocs.md | 42 -------- 10 files changed, 295 insertions(+), 206 deletions(-) create mode 100644 docs/contribute/create-pull-request.md create mode 100644 docs/contribute/stage-documentation-changes.md create mode 100644 docs/contribute/write-new-topic.md delete mode 100644 docs/tasks/access-kubernetes-api/access-kubernetes-api/http-proxy-access-api.md delete mode 100644 editdocs.md diff --git a/README.md b/README.md index a468c1f947..85111edba9 100644 --- a/README.md +++ b/README.md @@ -4,66 +4,20 @@ Welcome! We are very pleased you want to contribute to the documentation and/or You can click the "Fork" button in the upper-right area of the screen to create a copy of our site on your GitHub account called a "fork." Make any changes you want in your fork, and when you are ready to send those changes to us, go to the index page for your fork and click "New Pull Request" to let us know about it. -## Staging the site on GitHub Pages +For more information about contributing to the Kubernetes documentation, see: -If you want to see your changes staged without having to install anything locally, remove the CNAME file in this directory and -change the name of the fork to be: +* [Creating a Documentation Pull Request](http://kubernetes.io/docs/contribute/create-pull-request/) +* [Writing a New Topic](http://kubernetes.io/docs/contribute/write-new-topic/) +* [Staging Your Documentation Changes](http://kubernetes.io/docs/contribute/stage-documentation-changes/) +* [Using Page Templates](http://kubernetes.io/docs/contribute/page-templates/) - YOUR_GITHUB_USERNAME.github.io +## Release Branch Staging -Then make your changes. +The Kubernetes site maintains staged versions at a subdomain provided by Netlify. Every PR for the Kubernetes site, either against the master branch or the upcoming release branch, is staged automatically. -When you visit [http://YOUR_GITHUB_USERNAME.github.io](http://YOUR_GITHUB_USERNAME.github.io) you should see a special-to-you version of the site that contains the changes you just made. - -## Staging the site locally (using Docker) - -Don't like installing stuff? Download and run a local staging server with a single `docker run` command. - - git clone https://github.com/kubernetes/kubernetes.github.io.git - cd kubernetes.github.io - docker run -ti --rm -v "$PWD":/k8sdocs -p 4000:4000 gcr.io/google-samples/k8sdocs:1.0 - -Then visit [http://localhost:4000](http://localhost:4000) to see our site. Any changes you make on your local machine will be automatically staged. - -If you're interested you can view [the Dockerfile for this image](https://github.com/kubernetes/kubernetes.github.io/blob/master/staging-container/Dockerfile). - -## Staging the site locally (from scratch setup) - -The below commands to setup your environment for running GitHub pages locally. Then, any edits you make will be viewable -on a lightweight webserver that runs on your local machine. - -This will typically be the fastest way (by far) to iterate on docs changes and see them staged, once you get this set up, but it does involve several install steps that take awhile to complete, and makes system-wide modifications. - -Install Ruby 2.2 or higher. If you're on Linux, run these commands: - - apt-get install software-properties-common - apt-add-repository ppa:brightbox/ruby-ng - apt-get install ruby2.2 - apt-get install ruby2.2-dev - -* If you're on a Mac, follow [these instructions](https://gorails.com/setup/osx/). -* If you're on a Windows machine you can use the [Ruby Installer](http://rubyinstaller.org/downloads/). During the installation make sure to check the option for *Add Ruby executables to your PATH*. - -The remainder of the steps should work the same across operating systems. - -To confirm you've installed Ruby correctly, at the command prompt run `gem --version` and you should get a response with your version number. Likewise you can confirm you have Git installed properly by running `git --version`, which will respond with your version of Git. - -Install the GitHub Pages package, which includes Jekyll: - - gem install github-pages - -Clone our site: - - git clone https://github.com/kubernetes/kubernetes.github.io.git - -Make any changes you want. Then, to see your changes locally: - - cd kubernetes.github.io - jekyll serve - -Your copy of the site will then be viewable at: [http://localhost:4000](http://localhost:4000) -(or wherever Jekyll tells you). +The staging site for the next upcoming Kubernetes release is here: [http://kubernetes-io-vnext-staging.netlify.com/](http://kubernetes-io-vnext-staging.netlify.com/) +The staging site reflects the current state of what's been merged in the release branch, or in other words, what the docs will look like for the next upcoming release. It's automatically updated as new PRs get merged. ## GitHub help @@ -135,23 +89,6 @@ That, of course, will send users to: (Or whatever Kubernetes release that docs branch is associated with.) -## Branch structure - -The current version of the website is served out of the `master` branch. - -All versions of the site that relate to past and future versions will be named after their Kubernetes release number. For example, [the old branch for the 1.1 docs is called `release-1.1`](https://github.com/kubernetes/kubernetes.github.io/tree/release-1.1). - -Changes in the "docsv2" branch (where we are testing a revamp of the docs) are automatically staged here: -http://k8sdocs.github.io/docs/tutorials/ - -Changes in the "release-1.1" branch (for k8s v1.1 docs) are automatically staged here: -http://kubernetes-v1-1.github.io/ - -Changes in the "release-1.3" branch (for k8s v1.3 docs) are automatically staged here: -http://kubernetes-v1-3.github.io/ - -Editing of these branches will kick off a build using Travis CI that auto-updates these URLs; you can monitor the build progress at [https://travis-ci.org/kubernetes/kubernetes.github.io](https://travis-ci.org/kubernetes/kubernetes.github.io). - ## Config yaml guidelines Guidelines for config yamls that are included in the site docs. These diff --git a/_config.yml b/_config.yml index 5094499bfe..4c398d8d57 100644 --- a/_config.yml +++ b/_config.yml @@ -27,3 +27,6 @@ defaults: showedit: true permalink: pretty + +gems: + - jekyll-redirect-from diff --git a/_data/support.yml b/_data/support.yml index d287f0ecaa..e280c827d7 100644 --- a/_data/support.yml +++ b/_data/support.yml @@ -6,6 +6,12 @@ toc: - title: Contributing to the Kubernetes Docs section: + - title: Creating a Documentation Pull Request + path: /docs/contribute/create-pull-request/ + - title: Writing a New Topic + path: /docs/contribute/write-new-topic/ + - title: Staging Your Documentation Changes + path: /docs/contribute/stage-documentation-changes/ - title: Using Page Templates path: /docs/contribute/page-templates/ diff --git a/docs/contribute/create-pull-request.md b/docs/contribute/create-pull-request.md new file mode 100644 index 0000000000..833b4abf08 --- /dev/null +++ b/docs/contribute/create-pull-request.md @@ -0,0 +1,94 @@ +--- +redirect_from: + - /editdocs/ +--- + +{% capture overview %} + +To contribute to the Kubernetes documentation, create a pull request against the +[kubernetes/kubernetes.github.io](https://github.com/kubernetes/kubernetes.github.io){: target="_blank"} +repository. This page shows how to create a pull request. + +{% endcapture %} + +{% capture prerequisites %} + +1. Create a [GitHub account](https://github.com){: target="_blank"}. + +1. Sign the +[Google Contributor License Agreement](https://cla.developers.google.com/about/google-individual){: target="_blank"}. + +1. Sign the +[Linux Contributor License Agreement](https://identity.linuxfoundation.org/projects/cncf){: target="_blank"}. + +{% endcapture %} + +{% capture steps %} + +### Creating a fork of the Kubernetes documentation repository + +1. Go to the +[kubernetes/kubernetes.github.io](https://github.com/kubernetes/kubernetes.github.io){: target="_blank"} +repository. + +1. In the upper-right corner, click **Fork**. This creates a copy of the +Kubernetes documentation repository in your GitHub account. The copy +is called a *fork*. + +### Making your changes + +1. In your GitHub account, in your fork of the Kubernetes docs, create +a new branch to use for your contribution. + +1. In your new branch, make your changes and commit them. If you want to +[write a new topic](/docs/contribute/write-new-topic/), +choose the +[page type](/docs/contribute/page-templates/) +that is the best fit for your content. + +### Submitting a pull request to the master branch + +If you want your change to be published in the released version Kubernetes docs, +create a pull request against the master branch of the Kubernetes +documentation repository. + +1. In your GitHub account, in your new branch, create a pull request +against the master branch of the kubernetes/kubernetes.github.io +repository. This opens a page that shows the status of your pull request. + +1. Click **Show all checks**. Wait for the **deploy/netlify** check to complete. +To the right of **deploy/netlify**, click **Details**. This opens a staging +site where you can verify that your changes have rendered correctly. + +1. During the next few days, check your pull request for reviewer comments. +If needed, revise your pull request by committing changes to your +new branch in your fork. + +### Submitting a pull request to the <vnext> branch + +If your documentation change should not be released until the next release of +the Kubernetes product, create a pull request against the <vnext> branch +of the Kubernetes documentation repository. The <vnext> branch has the +form `release-`, for example release-1.5. + +1. In your GitHub account, in your new branch, create a pull request +against the <vnext> branch of the kubernetes/kubernetes.github.io +repository. This opens a page that shows the status of your pull request. + +1. Click **Show all checks**. Wait for the **deploy/netlify** check to complete. +To the right of **deploy/netlify**, click **Details**. This opens a staging +site where you can verify that your changes have rendered correctly. + +1. During the next few days, check your pull request for reviewer comments. +If needed, revise your pull request by committing changes to your +new branch in your fork. + +{% endcapture %} + +{% capture whatsnext %} +* Learn about [writing a new topic](/docs/contribute/write-new-topic). +* Learn about [using page templates](/docs/contribute/page-templates/). +* Learn about [staging your changes](/docs/contribute/stage-documentation-changes). +{% endcapture %} + +{% include templates/task.md %} diff --git a/docs/contribute/page-templates.md b/docs/contribute/page-templates.md index da77bfc38e..62c4039d6a 100644 --- a/docs/contribute/page-templates.md +++ b/docs/contribute/page-templates.md @@ -71,7 +71,7 @@ Here's an interesting thing to know about the steps you just did.

    Here's an example of a published topic that uses the task template:

    -

    Using an HTTP Proxy to Access Applications in a Cluster

    +

    Using an HTTP Proxy to Access the Kubernetes API

    Tutorial template

    diff --git a/docs/contribute/stage-documentation-changes.md b/docs/contribute/stage-documentation-changes.md new file mode 100644 index 0000000000..8c01d92158 --- /dev/null +++ b/docs/contribute/stage-documentation-changes.md @@ -0,0 +1,98 @@ +--- +--- + +{% capture overview %} +This page shows how to stage content that you want to contribute +to the Kubernetes documentation. +{% endcapture %} + +{% capture prerequisites %} +Create a fork of the Kubernetes documentation repository as described in +[Creating a Documentation Pull Request](/docs/contribute/create-pull-request/). +{% endcapture %} + +{% capture steps %} + +### Staging from your GitHub account + +GitHub provides staging of content in your master branch. Note that you +might not want to merge your changes into your master branch. If that is +the case, choose another option for staging your content. + +1. In your GitHub account, in your fork, merge your changes into +the master branch. + +1. Change the name of your repository to `.github.io`, where +`` is the username of your GitHub account. + +1. Delete the `CNAME` file. + +1. View your staged content at this URL: + + https://.github.io + +### Staging a pull request + +When you create pull request against the Kubernetes documentation +repository, you can see your changes on a staging server. + +1. In your GitHub account, in your new branch, submit a pull request to the +kubernetes/kubernetes.github.io repository. This opens a page that shows the +status of your pull request. + +1. Click **Show all checks**. Wait for the **deploy/netlify** check to complete. +To the right of **deploy/netlify**, click **Details**. This opens a staging +site where you see your changes. + +### Staging locally using Docker + +You can use the k8sdocs Docker image to run a local staging server. If you're +interested, you can view the +[Dockerfile](https://github.com/kubernetes/kubernetes.github.io/blob/master/staging-container/Dockerfile){: target="_blank"} +for this image. + +1. Install Docker if you don't already have it. + +1. Clone your fork to your local development machine. + +1. In the root of your cloned repository, enter this command to start a local +web server: + + docker run -ti --rm -v "$PWD":/k8sdocs -p 4000:4000 gcr.io/google-samples/k8sdocs:1.0 + +1. View your staged content at +[http://localhost:4000](http://localhost:4000){: target="_blank"}. + +### Staging locally without Docker + +1. [Install Ruby 2.2 or later](https://www.ruby-lang.org){: target="_blank"}. + +1. [Install RubyGems](https://rubygems.org){: target="_blank"}. + +1. Verify that Ruby and RubyGems are installed: + + gem --version + +1. Install the GitHub Pages package, which includes Jekyll: + + gem install github-pages + +1. Clone your fork to your local development machine. + +1. In the root of your cloned repository, enter this command to start a local +web server: + + jekyll serve + +1. View your staged content at +[http://localhost:4000](http://localhost:4000){: target="_blank"}. + +{% endcapture %} + +{% capture whatsnext %} +* Learn about [writing a new topic](/docs/contribute/write-new-topic/). +* Learn about [using page templates](/docs/contribute/page-templates/). +* Learn about [creating a pull request](/docs/contribute/create-pull-request/). +{% endcapture %} + +{% include templates/task.md %} diff --git a/docs/contribute/write-new-topic.md b/docs/contribute/write-new-topic.md new file mode 100644 index 0000000000..c34f3cfde1 --- /dev/null +++ b/docs/contribute/write-new-topic.md @@ -0,0 +1,83 @@ +--- +--- + +{% capture overview %} +This page shows how to create a new topic for the Kubernetes docs. +{% endcapture %} + +{% capture prerequisites %} +Create a fork of the Kubernetes documentation repository as described in +[Creating a Documentation Pull Request](/docs/contribute/create-pull-request/). +{% endcapture %} + +{% capture steps %} + +### Choosing a page type + +As you prepare to write a new topic, think about which of these page types +is the best fit for your content: + + + + + + + + + + + + + + + + + + +
    TaskA task page shows how to do a single thing, typically by giving a short sequence of steps. Task pages have minimal explanation, but often provide links to conceptual topics that provide related background and knowledge.
    TutorialA tutorial page shows how to accomplish a goal that is larger than a single task. Typically a tutorial page has several sections, each of which has a sequence of steps. For example, a tutorial might provide a walkthrough of a code sample that illustrates a certain feature of Kubernetes. Tutorials can include surface-level explanations, but should link to related concept topics for deep explanations.
    ConceptA concept page explains some aspect of Kubernetes. For example, a concept page might describe the Kubernetes Deployment object and explain the role it plays as an application is deployed, scaled, and updated. Typically, concept pages don't include sequences of steps, but instead provide links to tasks or tutorials.
    + +Each page type has a +[template](/docs/contribute/page-templates/) +that you can use as you write your topic. +Using templates helps ensure consistency among topics of a given type. + +### Choosing a title and filename + +Choose a title that has the keywords you want search engines to find. +Create a filename that uses the words in your title separated by hyphens. +For example, the topic with title +[Using an HTTP Proxy to Access the Kubernetes API](/docs/tasks/access-kubernetes-api/http-proxy-access-api/) +has filename `http-proxy-access-api.md`. You don't need to put +"kubernetes" in the filename, because "kubernetes" is already in the +URL for the topic, for example: + + http://kubernetes.io/docs/tasks/access-kubernetes-api/http-proxy-access-api/ + +### Choosing a directory + +Depending on your page type, put your new file in a subdirectory of one of these: + +* /docs/tasks/ +* /docs/tutorials/ +* /docs/concepts/ + +You can put your file in an existing subdirectory, or you can create a new +subdirectory. + +### Creating an entry in the table of contents + +Depending page type, create an entry in one of these files: + +* /_data/tasks.yaml +* /_data/tutorials.yaml +* /_data/concepts.yaml + +{% endcapture %} + +{% capture whatsnext %} +* Learn about [using page templates](/docs/contribute/page-templates/). +* Learn about [staging your changes](/docs/contribute/stage-documentation-changes). +* Learn about [creating a pull request](/docs/contribute/write-new-topic). +{% endcapture %} + +{% include templates/task.md %} diff --git a/docs/index.md b/docs/index.md index 5e29c42dcb..9499ae68a2 100644 --- a/docs/index.md +++ b/docs/index.md @@ -117,7 +117,7 @@ h2, h3, h4 {

    Contribute to Our Docs

    The docs for Kubernetes are open-source, just like the code for Kubernetes itself. The docs are on GitHub Pages, so you can fork it and it will auto-stage on username.github.io, previewing your changes!

    - Write Docs for K8s + Write Docs for K8s

    Need Help?

    diff --git a/docs/tasks/access-kubernetes-api/access-kubernetes-api/http-proxy-access-api.md b/docs/tasks/access-kubernetes-api/access-kubernetes-api/http-proxy-access-api.md deleted file mode 100644 index 0c7ad2ca87..0000000000 --- a/docs/tasks/access-kubernetes-api/access-kubernetes-api/http-proxy-access-api.md +++ /dev/null @@ -1,90 +0,0 @@ ---- ---- - -{% capture overview %} -This page shows how to use an HTTP proxy to access the Kubernetes API. -{% endcapture %} - -{% capture prerequisites %} - -* Install [kubectl](http://kubernetes.io/docs/user-guide/prereqs). - -* Create a Kubernetes cluster, including a running Kubernetes - API server. One way to create a new cluster is to use - [Minikube](/docs/getting-started-guides/minikube). - -* Configure `kubectl` to communicate with your Kubernetes API server. This - configuration is done automatically if you use Minikube. - -* If you do not already have an application running in your cluster, start - a Hello world application by entering this command: - - kubectl run --image=gcr.io/google-samples/node-hello:1.0 --port=8080 - -{% endcapture %} - -{% capture steps %} - -### Using kubectl to start a proxy server - -This command starts a proxy to the Kubernetes API server: - - kubectl proxy --port=8080 - -### Exploring the Kubernetes API - -When the proxy server is running, you can explore the API using `curl`, `wget`, -or a browser. - -Get the API versions: - - curl http://localhost:8080/api/ - - { - "kind": "APIVersions", - "versions": [ - "v1" - ], - "serverAddressByClientCIDRs": [ - { - "clientCIDR": "0.0.0.0/0", - "serverAddress": "10.0.2.15:8443" - } - ] - } - -Get a list of pods: - - curl http://localhost:8080/api/v1/namespaces/default/pods - - { - "kind": "PodList", - "apiVersion": "v1", - "metadata": { - "selfLink": "/api/v1/namespaces/default/pods", - "resourceVersion": "33074" - }, - "items": [ - { - "metadata": { - "name": "kubernetes-bootcamp-2321272333-ix8pt", - "generateName": "kubernetes-bootcamp-2321272333-", - "namespace": "default", - "selfLink": "/api/v1/namespaces/default/pods/kubernetes-bootcamp-2321272333-ix8pt", - "uid": "ba21457c-6b1d-11e6-85f7-1ef9f1dab92b", - "resourceVersion": "33003", - "creationTimestamp": "2016-08-25T23:43:30Z", - "labels": { - "pod-template-hash": "2321272333", - "run": "kubernetes-bootcamp" - }, - ... - } - -{% endcapture %} - -{% capture whatsnext %} -Learn more about [kubectl proxy](/docs/user-guide/kubectl/kubectl_proxy). -{% endcapture %} - -{% include templates/task.md %} diff --git a/editdocs.md b/editdocs.md deleted file mode 100644 index 0291912aca..0000000000 --- a/editdocs.md +++ /dev/null @@ -1,42 +0,0 @@ ---- -layout: docwithnav ---- - - -

     

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    - - - -{% include_relative README.md %} From fc10dd34b25abc44412c096cfe709538592deb47 Mon Sep 17 00:00:00 2001 From: Steve Perry Date: Sat, 15 Oct 2016 15:04:23 -0700 Subject: [PATCH 081/688] External address (#1432) * Write new tutorial: Exposing an External IP Address. * Update prerequisites. --- _data/tutorials.yml | 2 + docs/tutorials/index.md | 2 + .../expose-external-ip-address.md | 153 ++++++++++++++++++ 3 files changed, 157 insertions(+) create mode 100644 docs/tutorials/stateless-application/expose-external-ip-address.md diff --git a/_data/tutorials.yml b/_data/tutorials.yml index e312523bcd..01440b09d7 100644 --- a/_data/tutorials.yml +++ b/_data/tutorials.yml @@ -48,3 +48,5 @@ toc: path: /docs/tutorials/stateless-application/run-stateless-application-deployment/ - title: Using a Service to Access an Application in a Cluster path: /docs/tutorials/stateless-application/expose-external-ip-address-service/ + - title: Exposing an External IP Address to Access an Application in a Cluster + path: /docs/tutorials/stateless-application/expose-external-ip-address/ diff --git a/docs/tutorials/index.md b/docs/tutorials/index.md index 03ae95fe36..14530ca25e 100644 --- a/docs/tutorials/index.md +++ b/docs/tutorials/index.md @@ -13,6 +13,8 @@ The Tutorials section of the Kubernetes documentation is a work in progress. * [Using a Service to Access an Application in a Cluster](/docs/tutorials/stateless-application/expose-external-ip-address-service/) +* [Exposing an External IP Address to Access an Application in a Cluster](/docs/tutorials/stateless-application/expose-external-ip-address/) + ### What's next If you would like to write a tutorial, see diff --git a/docs/tutorials/stateless-application/expose-external-ip-address.md b/docs/tutorials/stateless-application/expose-external-ip-address.md new file mode 100644 index 0000000000..63aabb813d --- /dev/null +++ b/docs/tutorials/stateless-application/expose-external-ip-address.md @@ -0,0 +1,153 @@ +--- +--- + +{% capture overview %} + +This page shows how to create a Kubernetes Service object that exposees an +external IP address. + +{% endcapture %} + + +{% capture prerequisites %} + +* Install [kubectl](http://kubernetes.io/docs/user-guide/prereqs). + +* Use a cloud provider like Google Container Engine or Amazon Web Services to + create a Kubernetes cluster. This tutorial creates an + [external load balancer](/docs/user-guide/load-balancer/), + which requires a cloud provider. + +* Configure `kubectl` to communicate with your Kubernetes API server. For + instructions, see the documentation for your cloud provider. + +{% endcapture %} + + +{% capture objectives %} + +* Run five instances of a Hello World application. +* Create a Service object that exposes an external IP address. +* Use the Service object to access the running application. + +{% endcapture %} + + +{% capture lessoncontent %} + +### Creating a service for an application running in five pods + +1. Run a Hello World application in your cluster: + + kubectl run hello-world --replicas=5 --labels="run=load-balancer-example" --image=gcr.io/google-samples/node-hello:1.0 --port=8080 + + The preceding command creates a + [Deployment](/docs/user-guide/deployments/) + object and an associated + [ReplicaSet](/docs/user-guide/replicasets/) + object. The ReplicaSet has five + [Pods](/docs/user-guide/pods/), + each of which runs the Hello World application. + +1. Display information about the Deployment: + + kubectl get deployments hello-world + kubectl describe deployments hello-world + +1. Display information about your ReplicaSet objects: + + kubectl get replicasets + kubectl describe replicasets + +1. Create a Service object that exposes the deployment: + + kubectl expose deployment hello-world --type=LoadBalancer --name=my-service + +1. Display information about the Service: + + kubectl get services my-service + + The output is similar to this: + + NAME CLUSTER-IP EXTERNAL-IP PORT(S) AGE + my-service 10.3.245.137 104.198.205.71 8080/TCP 54s + + Note: If the external IP address is shown as , wait for a minute + and enter the same command again. + +1. Display detailed information about the Service: + + kubectl describe services my-service + + The output is similar to this: + + Name: my-service + Namespace: default + Labels: run=load-balancer-example + Selector: run=load-balancer-example + Type: LoadBalancer + IP: 10.3.245.137 + LoadBalancer Ingress: 104.198.205.71 + Port: 8080/TCP + NodePort: 32377/TCP + Endpoints: 10.0.0.6:8080,10.0.1.6:8080,10.0.1.7:8080 + 2 more... + Session Affinity: None + Events: + + Make a note of the external IP address exposed by your service. In this + example, the external IP address is 104.198.205.71. Also note + the value of Port. In this example, the port is 8080. + +1. In the preceding output, you can see that the service has several endpoints: + 10.0.0.6:8080,10.0.1.6:8080,10.0.1.7:8080 + 2 more. These are internal + addresses of the pods that are running the Hello World application. To + verify these are pod addresses, enter this command: + + kubectl get pods --output=wide + + The output is similar to this: + + NAME ... IP NODE + hello-world-2895499144-1jaz9 ... 10.0.1.6 gke-cluster-1-default-pool-e0b8d269-1afc + hello-world-2895499144-2e5uh ... 0.0.1.8 gke-cluster-1-default-pool-e0b8d269-1afc + hello-world-2895499144-9m4h1 ... 10.0.0.6 gke-cluster-1-default-pool-e0b8d269-5v7a + hello-world-2895499144-o4z13 ... 10.0.1.7 gke-cluster-1-default-pool-e0b8d269-1afc + hello-world-2895499144-segjf ... 10.0.2.5 gke-cluster-1-default-pool-e0b8d269-cpuc + +1. Use the external IP address to access the Hello World application: + + curl http://: + + where `` us the external IP address of your Service, + and `` is the value of `Port` in your Service description. + + The response to a successful request is a hello message: + + Hello Kubernetes! + +{% endcapture %} + + +{% capture cleanup %} + +To delete the Service, enter this command: + + kubectl delete services my-service + +To delete the Deployment, the ReplicaSet, and the Pods that are running +the Hello World application, enter this command: + + kubectl delete deployment hello-world + +{% endcapture %} + + +{% capture whatsnext %} + +Learn more about +[connecting applications with services](/docs/user-guide/connecting-applications/). +{% endcapture %} + +{% include templates/tutorial.md %} + + From f5934f521bf08f0f82f422a2b328a062a1559d5a Mon Sep 17 00:00:00 2001 From: chrislovecnm Date: Sat, 15 Oct 2016 20:44:10 -0600 Subject: [PATCH 082/688] updating kubectl overview with explain --- docs/user-guide/kubectl-overview.md | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/docs/user-guide/kubectl-overview.md b/docs/user-guide/kubectl-overview.md index bb587a9f91..8c134d475a 100644 --- a/docs/user-guide/kubectl-overview.md +++ b/docs/user-guide/kubectl-overview.md @@ -55,14 +55,15 @@ Operation | Syntax | Description `api-versions` | `kubectl api-versions [flags]` | List the API versions that are available. `apply` | `kubectl apply -f FILENAME [flags]`| Apply a configuration change to a resource from a file or stdin. `attach` | `kubectl attach POD -c CONTAINER [-i] [-t] [flags]` | Attach to a running container either to view the output stream or interact with the container (stdin). -`autoscale` | `autoscale (-f FILENAME | TYPE NAME | TYPE/NAME) [--min=MINPODS] --max=MAXPODS [--cpu-percent=CPU] [flags]` | Automatically scale the set of pods that are managed by a replication controller. +`autoscale` | `kubectl autoscale (-f FILENAME | TYPE NAME | TYPE/NAME) [--min=MINPODS] --max=MAXPODS [--cpu-percent=CPU] [flags]` | Automatically scale the set of pods that are managed by a replication controller. `cluster-info` | `kubectl cluster-info [flags]` | Display endpoint information about the master and services in the cluster. `config` | `kubectl config SUBCOMMAND [flags]` | Modifies kubeconfig files. See the individual subcommands for details. `create` | `kubectl create -f FILENAME [flags]` | Create one or more resources from a file or stdin. `delete` | `kubectl delete (-f FILENAME | TYPE [NAME | /NAME | -l label | --all]) [flags]` | Delete resources either from a file, stdin, or specifying label selectors, names, resource selectors, or resources. `describe` | `kubectl describe (-f FILENAME | TYPE [NAME_PREFIX | /NAME | -l label]) [flags]` | Display the detailed state of one or more resources. `edit` | `kubectl edit (-f FILENAME | TYPE NAME | TYPE/NAME) [flags]` | Edit and update the definition of one or more resources on the server by using the default editor. -`exec` | `kubectl exec POD [-c CONTAINER] [-i] [-t] [flags] [-- COMMAND [args...]]` | Execute a command against a container in a pod. +`exec` | `kubectl exec POD [-c CONTAINER] [-i] [-t] [flags] [-- COMMAND [args...]]` | Execute a command against a container in a pod, +`explain | `kubectl explain [--include-extended-apis=true] [--recursive=false] [flags]` | Get documentation of various resources. For instance pods, nodes, services, etc. `expose` | `kubectl expose (-f FILENAME | TYPE NAME | TYPE/NAME) [--port=port] [--protocol=TCP|UDP] [--target-port=number-or-name] [--name=name] [----external-ip=external-ip-of-service] [--type=type] [flags]` | Expose a replication controller, service, or pod as a new Kubernetes service. `get` | `kubectl get (-f FILENAME | TYPE [NAME | /NAME | -l label]) [--watch] [--sort-by=FIELD] [[-o | --output]=OUTPUT_FORMAT] [flags]` | List one or more resources. `label` | `kubectl label (-f FILENAME | TYPE NAME | TYPE/NAME) KEY_1=VAL_1 ... KEY_N=VAL_N [--overwrite] [--all] [--resource-version=version] [flags]` | Add or update the labels of one or more resources. From 95e14cc5f7e3bcf8f2cd3efb144454e14cbea9cf Mon Sep 17 00:00:00 2001 From: chrislovecnm Date: Sat, 15 Oct 2016 20:46:20 -0600 Subject: [PATCH 083/688] fixing format --- docs/user-guide/kubectl-overview.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/user-guide/kubectl-overview.md b/docs/user-guide/kubectl-overview.md index 8c134d475a..e805d48b35 100644 --- a/docs/user-guide/kubectl-overview.md +++ b/docs/user-guide/kubectl-overview.md @@ -63,7 +63,7 @@ Operation | Syntax | Description `describe` | `kubectl describe (-f FILENAME | TYPE [NAME_PREFIX | /NAME | -l label]) [flags]` | Display the detailed state of one or more resources. `edit` | `kubectl edit (-f FILENAME | TYPE NAME | TYPE/NAME) [flags]` | Edit and update the definition of one or more resources on the server by using the default editor. `exec` | `kubectl exec POD [-c CONTAINER] [-i] [-t] [flags] [-- COMMAND [args...]]` | Execute a command against a container in a pod, -`explain | `kubectl explain [--include-extended-apis=true] [--recursive=false] [flags]` | Get documentation of various resources. For instance pods, nodes, services, etc. +`explain` | `kubectl explain [--include-extended-apis=true] [--recursive=false] [flags]` | Get documentation of various resources. For instance pods, nodes, services, etc. `expose` | `kubectl expose (-f FILENAME | TYPE NAME | TYPE/NAME) [--port=port] [--protocol=TCP|UDP] [--target-port=number-or-name] [--name=name] [----external-ip=external-ip-of-service] [--type=type] [flags]` | Expose a replication controller, service, or pod as a new Kubernetes service. `get` | `kubectl get (-f FILENAME | TYPE [NAME | /NAME | -l label]) [--watch] [--sort-by=FIELD] [[-o | --output]=OUTPUT_FORMAT] [flags]` | List one or more resources. `label` | `kubectl label (-f FILENAME | TYPE NAME | TYPE/NAME) KEY_1=VAL_1 ... KEY_N=VAL_N [--overwrite] [--all] [--resource-version=version] [flags]` | Add or update the labels of one or more resources. From 945878d0722ab3fa4a8626dfed549aab59d35feb Mon Sep 17 00:00:00 2001 From: Denis Kolodin Date: Sun, 16 Oct 2016 12:23:27 +0300 Subject: [PATCH 084/688] Separate docker's args --- docs/hellonode.md | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/docs/hellonode.md b/docs/hellonode.md index 602a383a5b..0392dc994b 100755 --- a/docs/hellonode.md +++ b/docs/hellonode.md @@ -145,7 +145,7 @@ docker stop hello_tutorial Now that the image works as intended and is all tagged with your `$PROJECT_ID`, we can push it to the [Google Container Registry](https://cloud.google.com/tools/container-registry/), a private repository for your Docker images accessible from every Google Cloud project (but also from outside Google Cloud Platform) : ```shell -gcloud docker push gcr.io/$PROJECT_ID/hello-node:v1 +gcloud docker -- push gcr.io/$PROJECT_ID/hello-node:v1 ``` If all goes well, you should be able to see the container image listed in the console: *Compute > Container Engine > Container Registry*. We now have a project-wide Docker image available which Kubernetes can access and orchestrate. @@ -336,7 +336,7 @@ We can now build and publish a new container image to the registry with an incre ```shell docker build -t gcr.io/$PROJECT_ID/hello-node:v2 . -gcloud docker push gcr.io/$PROJECT_ID/hello-node:v2 +gcloud docker -- push gcr.io/$PROJECT_ID/hello-node:v2 ``` Building and pushing this updated image should be much quicker as we take full advantage of the Docker cache. From 4b506ea4982157210ba051bb24910b97aa5e0188 Mon Sep 17 00:00:00 2001 From: Sergei Orlov Date: Sun, 16 Oct 2016 12:47:04 +0300 Subject: [PATCH 085/688] Fix link to qos --- docs/user-guide/production-pods.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/user-guide/production-pods.md b/docs/user-guide/production-pods.md index efd1c43e43..3835781402 100644 --- a/docs/user-guide/production-pods.md +++ b/docs/user-guide/production-pods.md @@ -169,7 +169,7 @@ If no resource requirements are specified, a nominal amount of resources is assu {% include code.html language="yaml" file="redis-resource-deployment.yaml" ghlink="/docs/user-guide/redis-resource-deployment.yaml" %} -The container will die due to OOM (out of memory) if it exceeds its specified limit, so specifying a value a little higher than expected generally improves reliability. By specifying request, pod is guaranteed to be able to use that much of resource when needed. See [Resource QoS](https://github.com/kubernetes/kubernetes/blob/{{page.githubbranch}}/docs/proposals/resource-qos.md) for the difference between resource limits and requests. +The container will die due to OOM (out of memory) if it exceeds its specified limit, so specifying a value a little higher than expected generally improves reliability. By specifying request, pod is guaranteed to be able to use that much of resource when needed. See [Resource QoS](https://github.com/kubernetes/kubernetes/blob/{{page.githubbranch}}/docs/design/resource-qos.md) for the difference between resource limits and requests. If you're not sure how much resources to request, you can first launch the application without specifying resources, and use [resource usage monitoring](/docs/user-guide/monitoring) to determine appropriate values. From 3ef9c7e526a77fbf28e8baa491569ea7cbd800d7 Mon Sep 17 00:00:00 2001 From: Kami Gerami Date: Sat, 15 Oct 2016 14:56:15 +0200 Subject: [PATCH 086/688] 34613 404 Not Found on links referring to /docs/user-guide/kubectl/kubectl/ Changed all links referring to kubectl from /docs/user-guide/kubectl/kubectl/ to /docs/user-guide/kubectl/ --- docs/admin/static-pods.md | 2 +- docs/user-guide/federation/replicasets.md | 2 +- docs/user-guide/federation/secrets.md | 2 +- docs/user-guide/prereqs.md | 2 +- docs/user-guide/replicasets.md | 2 +- 5 files changed, 5 insertions(+), 5 deletions(-) diff --git a/docs/admin/static-pods.md b/docs/admin/static-pods.md index d1ad849b3a..531494fb04 100644 --- a/docs/admin/static-pods.md +++ b/docs/admin/static-pods.md @@ -88,7 +88,7 @@ static-web-my-node1 172.17.0.3 my-node1/192.168 Labels from the static pod are propagated into the mirror-pod and can be used as usual for filtering. -Notice we cannot delete the pod with the API server (e.g. via [`kubectl`](/docs/user-guide/kubectl/kubectl/) command), kubelet simply won't remove it. +Notice we cannot delete the pod with the API server (e.g. via [`kubectl`](/docs/user-guide/kubectl/) command), kubelet simply won't remove it. ```shell [joe@my-master ~] $ kubectl delete pod static-web-my-node1 diff --git a/docs/user-guide/federation/replicasets.md b/docs/user-guide/federation/replicasets.md index 805da57782..d0ceaa8bde 100644 --- a/docs/user-guide/federation/replicasets.md +++ b/docs/user-guide/federation/replicasets.md @@ -35,7 +35,7 @@ The API for Federated Replica Set is 100% compatible with the API for traditional Kubernetes Replica Set. You can create a replica set by sending a request to the federation apiserver. -You can do that using [kubectl](/docs/user-guide/kubectl/kubectl/) by running: +You can do that using [kubectl](/docs/user-guide/kubectl/) by running: ``` shell kubectl --context=federation-cluster create -f myrs.yaml diff --git a/docs/user-guide/federation/secrets.md b/docs/user-guide/federation/secrets.md index 7e7a27fc7a..763b53e98e 100644 --- a/docs/user-guide/federation/secrets.md +++ b/docs/user-guide/federation/secrets.md @@ -35,7 +35,7 @@ The API for Federated Secret is 100% compatible with the API for traditional Kubernetes Secret. You can create a secret by sending a request to the federation apiserver. -You can do that using [kubectl](/docs/user-guide/kubectl/kubectl/) by running: +You can do that using [kubectl](/docs/user-guide/kubectl/) by running: ``` shell kubectl --context=federation-cluster create -f mysecret.yaml diff --git a/docs/user-guide/prereqs.md b/docs/user-guide/prereqs.md index dfba1542af..e6b94baa62 100644 --- a/docs/user-guide/prereqs.md +++ b/docs/user-guide/prereqs.md @@ -5,7 +5,7 @@ assignees: --- -To deploy and manage applications on Kubernetes, you’ll use the Kubernetes command-line tool, [kubectl](/docs/user-guide/kubectl/kubectl/). It lets you inspect your cluster resources, create, delete, and update components, and much more. You will use it to look at your new cluster and bring up example apps. +To deploy and manage applications on Kubernetes, you’ll use the Kubernetes command-line tool, [kubectl](/docs/user-guide/kubectl/). It lets you inspect your cluster resources, create, delete, and update components, and much more. You will use it to look at your new cluster and bring up example apps. ## Installing kubectl diff --git a/docs/user-guide/replicasets.md b/docs/user-guide/replicasets.md index 27e9e3da88..d06be55328 100644 --- a/docs/user-guide/replicasets.md +++ b/docs/user-guide/replicasets.md @@ -18,7 +18,7 @@ the selector support. Replica Set supports the new set-based selector requiremen as described in the [labels user guide](/docs/user-guide/labels/#label-selectors) whereas a Replication Controller only supports equality-based selector requirements. -Most [`kubectl`](/docs/user-guide/kubectl/kubectl/) commands that support +Most [`kubectl`](/docs/user-guide/kubectl/) commands that support Replication Controllers also support Replica Sets. One exception is the [`rolling-update`](/docs/user-guide/kubectl/kubectl_rolling-update/) command. If you want the rolling update functionality please consider using Deployments From d76084a4b6ba317bf55049d799ec7fc5d157164d Mon Sep 17 00:00:00 2001 From: Victor Gama Date: Sun, 16 Oct 2016 15:40:28 -0200 Subject: [PATCH 087/688] Fix small typo This removes an extra "is a" from the documentation text --- docs/tutorials/kubernetes-basics/cluster-intro.html | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/tutorials/kubernetes-basics/cluster-intro.html b/docs/tutorials/kubernetes-basics/cluster-intro.html index 423dc61783..009a8e3947 100644 --- a/docs/tutorials/kubernetes-basics/cluster-intro.html +++ b/docs/tutorials/kubernetes-basics/cluster-intro.html @@ -87,7 +87,7 @@ redirect_from:

    When you deploy applications on Kubernetes, you tell the master to start the application containers. The master schedules the containers to run on the cluster's nodes. The nodes communicate with the master using the Kubernetes API, which the master exposes. End users can also use the Kubernetes API directly to interact with the cluster.

    -

    A Kubernetes cluster can be deployed on either physical or virtual machines. To get started with Kubernetes development, you can use minikube. Minikube is a is a lightweight Kubernetes implementation that creates a VM on your local machine and deploys a simple cluster containing only one node. Minikube is available for Linux, Mac OS and Windows systems. The minikube CLI provides basic bootstrapping operations for working with your cluster, including start, stop, status, and delete. For this bootcamp, however, you'll use a provided online terminal with minikube pre-installed.

    +

    A Kubernetes cluster can be deployed on either physical or virtual machines. To get started with Kubernetes development, you can use minikube. Minikube is a lightweight Kubernetes implementation that creates a VM on your local machine and deploys a simple cluster containing only one node. Minikube is available for Linux, Mac OS and Windows systems. The minikube CLI provides basic bootstrapping operations for working with your cluster, including start, stop, status, and delete. For this bootcamp, however, you'll use a provided online terminal with minikube pre-installed.

    Now that you know what Kubernetes is, let’s go to the online tutorial and start our first cluster!

    From 3bc8013a280783e1704272ee15cf621b25a4415a Mon Sep 17 00:00:00 2001 From: Denis Poisson Date: Mon, 17 Oct 2016 11:43:55 +0200 Subject: [PATCH 088/688] Update to Pet Set link 'Pet Set' now links correctly to http://kubernetes.io/docs/user-guide/petset/ --- docs/user-guide/ui.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/user-guide/ui.md b/docs/user-guide/ui.md index 0efdb3fd1f..84e0adabc6 100644 --- a/docs/user-guide/ui.md +++ b/docs/user-guide/ui.md @@ -163,7 +163,7 @@ Workloads are categorized as follows: * [Daemon Sets](http://kubernetes.io/docs/admin/daemons/) which ensure that all or some of the nodes in your cluster run a copy of a Pod. * [Deployments](http://kubernetes.io/docs/user-guide/deployments/) which provide declarative updates for Pods and Replica Sets (the next-generation [Replication Controller](http://kubernetes.io/docs/user-guide/replication-controller/)) The Details page for a Deployment lists resource details, as well as new and old Replica Sets. The resource details also include information on the [RollingUpdate](http://kubernetes.io/docs/user-guide/rolling-updates/) strategy, if any. -* [Pet Sets](http://kubernetes.io/docs/user-guide/load-balancer/) (nominal Services, also known as load-balanced Services) for legacy application support. +* [Pet Sets](http://kubernetes.io/docs/user-guide/petset/) (nominal Services, also known as load-balanced Services) for legacy application support. * [Replica Sets](http://kubernetes.io/docs/user-guide/replicasets/) for using label selectors. * [Jobs](http://kubernetes.io/docs/user-guide/jobs/) for creating one or more Pods, ensuring that a specified number of them successfully terminate, and tracking the completions. * [Replication Controllers](http://kubernetes.io/docs/user-guide/replication-controller/) From 553718a31e178f2b263e13b50044086462afd9bc Mon Sep 17 00:00:00 2001 From: Ricky Pai Date: Tue, 11 Oct 2016 16:34:06 -0700 Subject: [PATCH 089/688] Change RDB typo to RBD I assume this is referring to `RBD (Ceph Block Device)` and not something else --- docs/user-guide/persistent-volumes/index.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/user-guide/persistent-volumes/index.md b/docs/user-guide/persistent-volumes/index.md index 5232f068cd..8c69a75379 100644 --- a/docs/user-guide/persistent-volumes/index.md +++ b/docs/user-guide/persistent-volumes/index.md @@ -150,7 +150,7 @@ In the CLI, the access modes are abbreviated to: | HostPath | x | - | - | | iSCSI | x | x | - | | NFS | x | x | x | -| RDB | x | x | - | +| RBD | x | x | - | | VsphereVolume | x | - | - | ### Class From 047974c924c4fbd6e762be1fbd05b11a770e3bd6 Mon Sep 17 00:00:00 2001 From: Chris Jones Date: Mon, 17 Oct 2016 15:13:44 -0600 Subject: [PATCH 090/688] Added more prequisites. --- docs/getting-started-guides/ubuntu.md | 1 + 1 file changed, 1 insertion(+) diff --git a/docs/getting-started-guides/ubuntu.md b/docs/getting-started-guides/ubuntu.md index 56ef9d9515..e5a849d909 100644 --- a/docs/getting-started-guides/ubuntu.md +++ b/docs/getting-started-guides/ubuntu.md @@ -29,6 +29,7 @@ Internet to download the necessary files, while worker nodes do not. Ubuntu 15 which uses systemd instead of upstart. 4. Dependencies of this guide: etcd-2.2.1, flannel-0.5.5, k8s-1.2.0, may work with higher versions. 5. All the remote servers can be ssh logged in without a password by using key authentication. +6. The remote user on all machines is using /bin/bash as its login shell, and has sudo access. ## Starting a Cluster From 1480754235a31300b933887810443300d7bdeffd Mon Sep 17 00:00:00 2001 From: Feynman Liang Date: Mon, 17 Oct 2016 15:58:45 -0700 Subject: [PATCH 091/688] Correct typo in authorization header --- docs/admin/authentication.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/admin/authentication.md b/docs/admin/authentication.md index 5664e8b266..6819677107 100644 --- a/docs/admin/authentication.md +++ b/docs/admin/authentication.md @@ -101,7 +101,7 @@ quoting facilities of HTTP. For example: if the bearer token is header as shown below. ```http -Authentication: Bearer 31ada4fd-adec-460c-809a-9e56ceb75269 +Authorization: Bearer 31ada4fd-adec-460c-809a-9e56ceb75269 ``` ### Static Password File From 827ae558ec269a57a65186edd81efb27ee1c4a9d Mon Sep 17 00:00:00 2001 From: Fede Diaz Date: Tue, 18 Oct 2016 08:13:10 +0200 Subject: [PATCH 092/688] Update centos_manual_config.md Request change done. Fixed errata in flannel network. --- docs/getting-started-guides/centos/centos_manual_config.md | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/docs/getting-started-guides/centos/centos_manual_config.md b/docs/getting-started-guides/centos/centos_manual_config.md index 1f1c3ff1dc..75b7cccbf7 100644 --- a/docs/getting-started-guides/centos/centos_manual_config.md +++ b/docs/getting-started-guides/centos/centos_manual_config.md @@ -10,7 +10,7 @@ assignees: ## Prerequisites -You need a machine acting as master and as many CentOS 7 hosts as you would like, that act as cluster nodes. +To configure Kubernetes with CentOS, you'll need a machine to act as a master, and one or more CentOS 7 hosts to act as cluster nodes. ## Starting a cluster @@ -119,11 +119,11 @@ KUBE_API_ARGS="" ``` * Configure ETCD to hold the network overlay configuration on master: -**Warning** This network must be unused in your network infrastructure! `172.40.0.0/16` is free in our network. +**Warning** This network must be unused in your network infrastructure! `172.30.0.0/16` is free in our network. ```shell $ etcdctl mkdir /kube-centos/network -$ etcdclt mk /kube-centos/network/config "{ \"Network\": \"172.40.0.0/16\", \"SubnetLen\": 24, \"Backend\": { \"Type\": \"vxlan\" } }" +$ etcdclt mk /kube-centos/network/config "{ \"Network\": \"172.30.0.0/16\", \"SubnetLen\": 24, \"Backend\": { \"Type\": \"vxlan\" } }" ``` * Configure flannel to overlay Docker network in /etc/sysconfig/flanneld on the master (also in the nodes as we'll see): From 4e1dd8314c64df24a04d14d70362cd3895d089b5 Mon Sep 17 00:00:00 2001 From: Clemens Tolboom Date: Tue, 18 Oct 2016 13:10:11 +0200 Subject: [PATCH 093/688] Update text to latest suggestions. I had to remove _To_ to join sentences and places a dot. --- docs/hellonode.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/hellonode.md b/docs/hellonode.md index dce486b51d..308588fd97 100755 --- a/docs/hellonode.md +++ b/docs/hellonode.md @@ -150,7 +150,7 @@ gcloud docker push gcr.io/$PROJECT_ID/hello-node:v1 If all goes well, you should be able to see the container image listed in the console: *Compute > Container Engine > Container Registry*. We now have a project-wide Docker image available which Kubernetes can access and orchestrate. -If you get a __denied: Unable to create the repository, please check that you have access to do so.__ check whether you push as the right user. Use `gcloud auth list` and then `gcloud config set account example@gmail.com` +If you see an error message like the following: __denied: Unable to create the repository, please check that you have access to do so.__ ensure that you are pushing the image to Container Registry with the correct user credentials, use `gcloud auth list` and then `gcloud config set account example@gmail.com`. ![image](/images/hellonode/image_10.png) From ad39de970d1248a7fd81eb445e9bc45ffd4fabcc Mon Sep 17 00:00:00 2001 From: anatoly techtonik Date: Tue, 18 Oct 2016 14:12:52 +0300 Subject: [PATCH 094/688] Remove 'quickly' --- docs/user-guide/kubectl-overview.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/user-guide/kubectl-overview.md b/docs/user-guide/kubectl-overview.md index ff3813fb3a..3607f47d53 100644 --- a/docs/user-guide/kubectl-overview.md +++ b/docs/user-guide/kubectl-overview.md @@ -5,7 +5,7 @@ assignees: --- -`kubectl` is a command line interface for running commands against Kubernetes clusters. This overview quickly covers `kubectl` syntax, describes the command operations, and provides common examples. For details about each command, including all the supported flags and subcommands, see the [kubectl](/docs/user-guide/kubectl) reference documentation. For installation instructions see [prerequisites](/docs/user-guide/prereqs). +`kubectl` is a command line interface for running commands against Kubernetes clusters. This overview covers `kubectl` syntax, describes the command operations, and provides common examples. For details about each command, including all the supported flags and subcommands, see the [kubectl](/docs/user-guide/kubectl) reference documentation. For installation instructions see [prerequisites](/docs/user-guide/prereqs). TODO: Auto-generate this file to ensure it's always in sync with any `kubectl` changes, see [#14177](http://pr.k8s.io/14177). From 8b4e7e8bc611fddc7250a65a8ad4a265a2ebaa33 Mon Sep 17 00:00:00 2001 From: Keith Wansbrough Date: Tue, 18 Oct 2016 15:22:13 +0100 Subject: [PATCH 095/688] Instructions for Windows download of kubectl. The binary name is kubectl.exe in this case, not kubectl, which is not immediately obvious. --- docs/getting-started-guides/minikube.md | 2 ++ 1 file changed, 2 insertions(+) diff --git a/docs/getting-started-guides/minikube.md b/docs/getting-started-guides/minikube.md index 020fc5e257..5d3c69f6b1 100644 --- a/docs/getting-started-guides/minikube.md +++ b/docs/getting-started-guides/minikube.md @@ -80,6 +80,8 @@ curl -Lo kubectl http://storage.googleapis.com/kubernetes-release/release/{{page curl -Lo kubectl http://storage.googleapis.com/kubernetes-release/release/{{page.version}}.0/bin/darwin/amd64/kubectl && chmod +x kubectl && sudo mv kubectl /usr/local/bin/ # OS X/386 curl -Lo kubectl http://storage.googleapis.com/kubernetes-release/release/{{page.version}}.0/bin/darwin/386/kubectl && chmod +x kubectl && sudo mv kubectl /usr/local/bin/ +# Windows +curl -Lo kubectl.exe http://storage.googleapis.com/kubernetes-release/release/v1.3.0/bin/windows/amd64/kubectl.exe ``` The generic download path is: From 65f244993cff22d76561f8cc9839e3bbdb803182 Mon Sep 17 00:00:00 2001 From: steveperry-53 Date: Tue, 18 Oct 2016 09:50:31 -0700 Subject: [PATCH 096/688] Revise the section on Branch Structure and Staging. --- README.md | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) diff --git a/README.md b/README.md index a4d5092fdf..40f2b42a32 100644 --- a/README.md +++ b/README.md @@ -28,17 +28,20 @@ When you create a pull request (either against master or the upcoming release), - Look for "deploy/netlify"; you'll see "Deploy Preview Ready!" if staging was successful - Click "Details" to bring up the staged site and navigate to your changes -## Release Branch Staging +## Branch structure and staging -The Kubernetes site maintains staged versions at a subdomain provided by Netlify. Every PR for the Kubernetes site, either against the master branch or the upcoming release branch, is staged automatically. +The current version of the website is served out of the `master` branch. To make changes to the live docs, such as bug fixes, broken links, typos, etc, **target your pull request to the master branch** -The staging site for the next upcoming Kubernetes release is here: [http://kubernetes-io-vnext-staging.netlify.com/](http://kubernetes-io-vnext-staging.netlify.com/) +The `release-1.x` branch stores changes for **upcoming releases of Kubernetes**. For example, the `release-1.5` branch has changes for the 1.5 release. These changes target branches (and *not* master) to avoid publishing documentation updates prior to the release for which they're relevant. If you have a change for an upcoming release of Kubernetes, **target your pull request to the appropriate release branch**. -The staging site reflects the current state of what's been merged in the release branch, or in other words, what the docs will look like for the next upcoming release. It's automatically updated as new PRs get merged. +The staging site for the next upcoming Kubernetes release is here: [http://kubernetes-io-vnext-staging.netlify.com/](http://kubernetes-io-vnext-staging.netlify.com/). The staging site reflects the current state of what's been merged in the release branch, or in other words, what the docs will look like for the next upcoming release. It's automatically updated as new PRs get merged. + +When you create a pull request, either against the master branch or the upcoming release branch, your changes are staged automatically. +The Kubernetes site maintains staged versions at a subdomain provided by Netlify. ## Staging the site locally (using Docker) -Don't like installing stuff? Download and run a local staging server with a single `docker run` command. +Don't like installing stuff? Download and run a local staging server with a single `docker run` command. git clone https://github.com/kubernetes/kubernetes.github.io.git cd kubernetes.github.io @@ -62,7 +65,7 @@ Install Ruby 2.2 or higher. If you're on Linux, run these commands: apt-get install ruby2.2 apt-get install ruby2.2-dev -* If you're on a Mac, follow [these instructions](https://gorails.com/setup/osx/). +* If you're on a Mac, follow [these instructions](https://gorails.com/setup/osx/). * If you're on a Windows machine you can use the [Ruby Installer](http://rubyinstaller.org/downloads/). During the installation make sure to check the option for *Add Ruby executables to your PATH*. The remainder of the steps should work the same across operating systems. From ebbe5bbcc1a1a9331113a76c48fd39841349e3ea Mon Sep 17 00:00:00 2001 From: steveperry-53 Date: Tue, 18 Oct 2016 16:40:10 -0700 Subject: [PATCH 097/688] Additional updates to the Staging sections of the README. --- README.md | 11 ----------- 1 file changed, 11 deletions(-) diff --git a/README.md b/README.md index 40f2b42a32..c03defb3f7 100644 --- a/README.md +++ b/README.md @@ -11,14 +11,6 @@ For more information about contributing to the Kubernetes documentation, see: * [Staging Your Documentation Changes](http://kubernetes.io/docs/contribute/stage-documentation-changes/) * [Using Page Templates](http://kubernetes.io/docs/contribute/page-templates/) -## Release Branch Staging - -The Kubernetes site maintains staged versions at a subdomain provided by Netlify. Every PR for the Kubernetes site, either against the master branch or the upcoming release branch, is staged automatically. - -The staging site for the next upcoming Kubernetes release is here: [http://kubernetes-io-vnext-staging.netlify.com/](http://kubernetes-io-vnext-staging.netlify.com/) - -The staging site reflects the current state of what's been merged in the release branch, or in other words, what the docs will look like for the next upcoming release. It's automatically updated as new PRs get merged. - ## Automatic Staging for Pull Requests When you create a pull request (either against master or the upcoming release), your changes are staged in a custom subdomain on Netlify so that you can see your changes in rendered form before the PR is merged. You can use this to verify that everything is correct before the PR gets merged. To view your changes: @@ -36,9 +28,6 @@ The `release-1.x` branch stores changes for **upcoming releases of Kubernetes**. The staging site for the next upcoming Kubernetes release is here: [http://kubernetes-io-vnext-staging.netlify.com/](http://kubernetes-io-vnext-staging.netlify.com/). The staging site reflects the current state of what's been merged in the release branch, or in other words, what the docs will look like for the next upcoming release. It's automatically updated as new PRs get merged. -When you create a pull request, either against the master branch or the upcoming release branch, your changes are staged automatically. -The Kubernetes site maintains staged versions at a subdomain provided by Netlify. - ## Staging the site locally (using Docker) Don't like installing stuff? Download and run a local staging server with a single `docker run` command. From e41f80c9a508d2c6f7f23e6ae42452fd65b0b906 Mon Sep 17 00:00:00 2001 From: Steve Perry Date: Tue, 18 Oct 2016 17:25:48 -0700 Subject: [PATCH 098/688] Update README.md --- README.md | 5 ----- 1 file changed, 5 deletions(-) diff --git a/README.md b/README.md index c03defb3f7..381cd46567 100644 --- a/README.md +++ b/README.md @@ -77,11 +77,6 @@ Make any changes you want. Then, to see your changes locally: Your copy of the site will then be viewable at: [http://localhost:4000](http://localhost:4000) (or wherever Jekyll tells you). -======= - -The staging site reflects the current state of what's been merged in the release branch, or in other words, what the docs will look like for the next upcoming release. It's automatically updated as new PRs get merged. - ->>>>>>> contribution-guide-2 ## GitHub help If you're a bit rusty with git/GitHub, you might want to read From 5b6055a3749df91ae277904117944d7020c524a8 Mon Sep 17 00:00:00 2001 From: Rodrigo Campos Date: Wed, 12 Oct 2016 18:47:00 -0300 Subject: [PATCH 099/688] Clarify secrets file mode might be read in decimal notation Fixes: https://github.com/kubernetes/kubernetes/issues/33475 --- docs/user-guide/secrets/index.md | 3 +++ 1 file changed, 3 insertions(+) diff --git a/docs/user-guide/secrets/index.md b/docs/user-guide/secrets/index.md index 4da56a3cca..75527a2be5 100644 --- a/docs/user-guide/secrets/index.md +++ b/docs/user-guide/secrets/index.md @@ -344,6 +344,9 @@ In this case, the file resulting in `/etc/foo/my-group/my-username` will have permission value of `0777`. Owing to JSON limitations, you must specify the mode in decimal notation. +Note that this permission value might be displayed in decimal notation if you +read it later. + **Consuming Secret Values from Volumes** Inside the container that mounts a secret volume, the secret keys appear as From e80c15b5837437f5cf3d79f9a78c04fdb513e691 Mon Sep 17 00:00:00 2001 From: Ben Hall Date: Tue, 11 Oct 2016 11:31:41 +0100 Subject: [PATCH 100/688] Fix links for interactive scenarios. --- docs/tutorials/kubernetes-basics/cluster-interactive.html | 2 +- docs/tutorials/kubernetes-basics/cluster-intro.html | 2 +- docs/tutorials/kubernetes-basics/deploy-interactive.html | 2 +- docs/tutorials/kubernetes-basics/deploy-intro.html | 2 +- docs/tutorials/kubernetes-basics/explore-interactive.html | 2 +- docs/tutorials/kubernetes-basics/explore-intro.html | 2 +- docs/tutorials/kubernetes-basics/expose-interactive.html | 2 +- docs/tutorials/kubernetes-basics/expose-intro.html | 2 +- docs/tutorials/kubernetes-basics/scale-interactive.html | 2 +- docs/tutorials/kubernetes-basics/scale-intro.html | 2 +- docs/tutorials/kubernetes-basics/update-intro.html | 2 +- 11 files changed, 11 insertions(+), 11 deletions(-) diff --git a/docs/tutorials/kubernetes-basics/cluster-interactive.html b/docs/tutorials/kubernetes-basics/cluster-interactive.html index 8b07b331c7..f1de469494 100644 --- a/docs/tutorials/kubernetes-basics/cluster-interactive.html +++ b/docs/tutorials/kubernetes-basics/cluster-interactive.html @@ -22,7 +22,7 @@
    - Continue to Module 2› + Continue to Module 2›
    diff --git a/docs/tutorials/kubernetes-basics/cluster-intro.html b/docs/tutorials/kubernetes-basics/cluster-intro.html index 009a8e3947..eb7835e242 100644 --- a/docs/tutorials/kubernetes-basics/cluster-intro.html +++ b/docs/tutorials/kubernetes-basics/cluster-intro.html @@ -97,7 +97,7 @@ redirect_from:
    - Start Interactive Tutorial › + Start Interactive Tutorial ›
    diff --git a/docs/tutorials/kubernetes-basics/deploy-interactive.html b/docs/tutorials/kubernetes-basics/deploy-interactive.html index 73d7e9dfc3..ff3e4643d5 100644 --- a/docs/tutorials/kubernetes-basics/deploy-interactive.html +++ b/docs/tutorials/kubernetes-basics/deploy-interactive.html @@ -26,7 +26,7 @@
    - Continue to Module 3› + Continue to Module 3›
    diff --git a/docs/tutorials/kubernetes-basics/deploy-intro.html b/docs/tutorials/kubernetes-basics/deploy-intro.html index 9fafe6012e..3664398794 100644 --- a/docs/tutorials/kubernetes-basics/deploy-intro.html +++ b/docs/tutorials/kubernetes-basics/deploy-intro.html @@ -95,7 +95,7 @@
    - Start Interactive Tutorial › + Start Interactive Tutorial ›
    diff --git a/docs/tutorials/kubernetes-basics/explore-interactive.html b/docs/tutorials/kubernetes-basics/explore-interactive.html index 9b16d4bca4..db8d52a482 100644 --- a/docs/tutorials/kubernetes-basics/explore-interactive.html +++ b/docs/tutorials/kubernetes-basics/explore-interactive.html @@ -26,7 +26,7 @@
    - Continue to Module 4› + Continue to Module 4›
    diff --git a/docs/tutorials/kubernetes-basics/explore-intro.html b/docs/tutorials/kubernetes-basics/explore-intro.html index 4789838827..23dd27714b 100644 --- a/docs/tutorials/kubernetes-basics/explore-intro.html +++ b/docs/tutorials/kubernetes-basics/explore-intro.html @@ -129,7 +129,7 @@
    - Start Interactive Tutorial › + Start Interactive Tutorial ›
    diff --git a/docs/tutorials/kubernetes-basics/expose-interactive.html b/docs/tutorials/kubernetes-basics/expose-interactive.html index 3288807588..56b9ca4861 100644 --- a/docs/tutorials/kubernetes-basics/expose-interactive.html +++ b/docs/tutorials/kubernetes-basics/expose-interactive.html @@ -23,7 +23,7 @@
    - Continue to Module 5› + Continue to Module 5›
    diff --git a/docs/tutorials/kubernetes-basics/expose-intro.html b/docs/tutorials/kubernetes-basics/expose-intro.html index 81c1981bf4..8506bf8d9d 100644 --- a/docs/tutorials/kubernetes-basics/expose-intro.html +++ b/docs/tutorials/kubernetes-basics/expose-intro.html @@ -125,7 +125,7 @@
    - Start Interactive Tutorial › + Start Interactive Tutorial ›
    diff --git a/docs/tutorials/kubernetes-basics/scale-interactive.html b/docs/tutorials/kubernetes-basics/scale-interactive.html index d41b6cb36b..aa2134864d 100644 --- a/docs/tutorials/kubernetes-basics/scale-interactive.html +++ b/docs/tutorials/kubernetes-basics/scale-interactive.html @@ -23,7 +23,7 @@
    - Continue to Module 6› + Continue to Module 6›
    diff --git a/docs/tutorials/kubernetes-basics/scale-intro.html b/docs/tutorials/kubernetes-basics/scale-intro.html index b4b5d47c91..7d046756f9 100644 --- a/docs/tutorials/kubernetes-basics/scale-intro.html +++ b/docs/tutorials/kubernetes-basics/scale-intro.html @@ -107,7 +107,7 @@
    - Start Interactive Tutorial › + Start Interactive Tutorial ›
    diff --git a/docs/tutorials/kubernetes-basics/update-intro.html b/docs/tutorials/kubernetes-basics/update-intro.html index b7867f3b1f..411bef8d4f 100644 --- a/docs/tutorials/kubernetes-basics/update-intro.html +++ b/docs/tutorials/kubernetes-basics/update-intro.html @@ -122,7 +122,7 @@
    - Start Interactive Tutorial › + Start Interactive Tutorial ›
    From 0903054357418e6a93746eee498f12ca7413bda4 Mon Sep 17 00:00:00 2001 From: Keith Wansbrough Date: Wed, 19 Oct 2016 12:03:28 +0100 Subject: [PATCH 101/688] Don't hardcode kubectl version. --- docs/getting-started-guides/minikube.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/getting-started-guides/minikube.md b/docs/getting-started-guides/minikube.md index 5d3c69f6b1..e72a70299a 100644 --- a/docs/getting-started-guides/minikube.md +++ b/docs/getting-started-guides/minikube.md @@ -81,7 +81,7 @@ curl -Lo kubectl http://storage.googleapis.com/kubernetes-release/release/{{page # OS X/386 curl -Lo kubectl http://storage.googleapis.com/kubernetes-release/release/{{page.version}}.0/bin/darwin/386/kubectl && chmod +x kubectl && sudo mv kubectl /usr/local/bin/ # Windows -curl -Lo kubectl.exe http://storage.googleapis.com/kubernetes-release/release/v1.3.0/bin/windows/amd64/kubectl.exe +curl -Lo kubectl.exe http://storage.googleapis.com/kubernetes-release/release/{{page.version}}.0/bin/windows/amd64/kubectl.exe ``` The generic download path is: From eb5f7add4b1fa40e5a47f6825cef7c547ab08128 Mon Sep 17 00:00:00 2001 From: Keith Wansbrough Date: Wed, 19 Oct 2016 12:04:25 +0100 Subject: [PATCH 102/688] Suggest alternative to curl for Windows. --- docs/getting-started-guides/minikube.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/getting-started-guides/minikube.md b/docs/getting-started-guides/minikube.md index e72a70299a..e8b75b99d8 100644 --- a/docs/getting-started-guides/minikube.md +++ b/docs/getting-started-guides/minikube.md @@ -80,7 +80,7 @@ curl -Lo kubectl http://storage.googleapis.com/kubernetes-release/release/{{page curl -Lo kubectl http://storage.googleapis.com/kubernetes-release/release/{{page.version}}.0/bin/darwin/amd64/kubectl && chmod +x kubectl && sudo mv kubectl /usr/local/bin/ # OS X/386 curl -Lo kubectl http://storage.googleapis.com/kubernetes-release/release/{{page.version}}.0/bin/darwin/386/kubectl && chmod +x kubectl && sudo mv kubectl /usr/local/bin/ -# Windows +# Windows (using curl; or use your browser "save link as...") curl -Lo kubectl.exe http://storage.googleapis.com/kubernetes-release/release/{{page.version}}.0/bin/windows/amd64/kubectl.exe ``` From 0a28be36134737da3af0593e591f5e545cec4f50 Mon Sep 17 00:00:00 2001 From: Eric Paris Date: Wed, 19 Oct 2016 08:55:03 -0400 Subject: [PATCH 103/688] Update networkpolicies.md --- docs/user-guide/networkpolicies.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/user-guide/networkpolicies.md b/docs/user-guide/networkpolicies.md index d7c4f572bb..91646633cd 100644 --- a/docs/user-guide/networkpolicies.md +++ b/docs/user-guide/networkpolicies.md @@ -89,7 +89,7 @@ __podSelector__: Each `NetworkPolicy` includes a `podSelector` which selects the __ingress__: Each `NetworkPolicy` includes a list of whitelist `ingress` rules. Each rule allows traffic which matches both the `from` and `ports` sections. -In plain language, this example NetworkPolicy: +This example NetworkPolicy has the following characteristics: 1. applies to all pods in the default namespace with the label "role=db" 2. allows tcp/6379 ingress traffic to the "role=db" pods from any pod in the current namespace with the label "role=frontend" (due to the podSelector list element) From 33cdc55903b43bd204bf4e0cdfbab184755714cf Mon Sep 17 00:00:00 2001 From: Keith Wansbrough Date: Wed, 19 Oct 2016 14:01:30 +0100 Subject: [PATCH 104/688] Just give a simple link for Windows kubectl. --- docs/getting-started-guides/minikube.md | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/docs/getting-started-guides/minikube.md b/docs/getting-started-guides/minikube.md index e8b75b99d8..ee827bab55 100644 --- a/docs/getting-started-guides/minikube.md +++ b/docs/getting-started-guides/minikube.md @@ -80,10 +80,10 @@ curl -Lo kubectl http://storage.googleapis.com/kubernetes-release/release/{{page curl -Lo kubectl http://storage.googleapis.com/kubernetes-release/release/{{page.version}}.0/bin/darwin/amd64/kubectl && chmod +x kubectl && sudo mv kubectl /usr/local/bin/ # OS X/386 curl -Lo kubectl http://storage.googleapis.com/kubernetes-release/release/{{page.version}}.0/bin/darwin/386/kubectl && chmod +x kubectl && sudo mv kubectl /usr/local/bin/ -# Windows (using curl; or use your browser "save link as...") -curl -Lo kubectl.exe http://storage.googleapis.com/kubernetes-release/release/{{page.version}}.0/bin/windows/amd64/kubectl.exe ``` +For Windows, download [kubectl.exe](http://storage.googleapis.com/kubernetes-release/release/{{page.version}}.0/bin/windows/amd64/kubectl.exe) and save it to a location on your PATH. + The generic download path is: ``` https://storage.googleapis.com/kubernetes-release/release/${K8S_VERSION}/bin/${GOOS}/${GOARCH}/${K8S_BINARY} From 441043a22a59d34b34cbdcdf8dc2437c552ef5c8 Mon Sep 17 00:00:00 2001 From: Justin Santa Barbara Date: Wed, 19 Oct 2016 13:08:21 -0400 Subject: [PATCH 105/688] Instructions for how to download kubectl --- _data/guides.yml | 2 + docs/getting-started-guides/kubectl.md | 63 ++++++++++++++++++++++++++ 2 files changed, 65 insertions(+) create mode 100644 docs/getting-started-guides/kubectl.md diff --git a/_data/guides.yml b/_data/guides.yml index 40d47b08d6..e77e8e1b01 100644 --- a/_data/guides.yml +++ b/_data/guides.yml @@ -12,6 +12,8 @@ toc: path: /docs/getting-started-guides/kubeadm/ - title: Hello World on Google Container Engine path: /docs/hellonode/ + - title: Downloading kubectl + path: /docs/getting-started-guides/kubectl/ - title: Downloading or Building Kubernetes path: /docs/getting-started-guides/binary_release/ - title: Online Training Course diff --git a/docs/getting-started-guides/kubectl.md b/docs/getting-started-guides/kubectl.md new file mode 100644 index 0000000000..6c5043e744 --- /dev/null +++ b/docs/getting-started-guides/kubectl.md @@ -0,0 +1,63 @@ +--- +--- + + + +## Overview + +kubectl is the command line tool you will use when interacting with kubernetes. + +You should use a version of kubectl that is newer than your server. `kubectl version` will print +the server and client versions. + +## Download a release + +Download kubectl from the [official Kubernetes releases](https://console.cloud.google.com/storage/browser/kubernetes-release/release/): + +On MacOS: + +``` +wget https://storage.googleapis.com/kubernetes-release/release/v1.4.3/bin/darwin/amd64/kubectl +chmod +x kubectl +mv kubectl /usr/local/bin/kubectl +``` + +On Linux: + +``` +wget https://storage.googleapis.com/kubernetes-release/release/v1.4.3/bin/linux/amd64/kubectl +chmod +x kubectl +mv kubectl /usr/local/bin/kubectl +``` + + +You may need to `sudo` the `mv`; you can put it anywhere in your `PATH` - some people prefer to install to `~/bin`. + + +## Alternatives + +### Download as part of the Google Cloud SDK + +kubectl can be installed as part of the Google Cloud SDK: + +First install the [Google Cloud SDK](https://cloud.google.com/sdk/). + +After Google Cloud SDK installs, run the following command to install `kubectl`: + +```shell +gcloud components install kubectl +``` + +Do check that the version is sufficiently up-to-date using `kubectl version --client`. + +### Install with brew + +If you are on MacOS and using brew, you can install with: + +```shell +brew install kubectl +``` + +Do check that the version is sufficiently up-to-date using `kubectl version --client`. From 68a0c5195b89281ae281cf7fb88c4fd2648b863b Mon Sep 17 00:00:00 2001 From: steveperry-53 Date: Tue, 18 Oct 2016 20:01:43 -0700 Subject: [PATCH 106/688] Write new task: Defining Environment Variables for a Container. --- _data/tasks.yml | 4 + _includes/task-tutorial-prereqs.md | 4 + .../define-environment-variable-container.md | 77 +++++++++++++++++++ .../tasks/configure-pod-container/envars.yaml | 13 ++++ 4 files changed, 98 insertions(+) create mode 100644 _includes/task-tutorial-prereqs.md create mode 100644 docs/tasks/configure-pod-container/define-environment-variable-container.md create mode 100644 docs/tasks/configure-pod-container/envars.yaml diff --git a/_data/tasks.yml b/_data/tasks.yml index 86209a52aa..91bbe1bcca 100644 --- a/_data/tasks.yml +++ b/_data/tasks.yml @@ -2,6 +2,10 @@ bigheader: "Tasks" toc: - title: Tasks path: /docs/tasks/ +- title: Configuring Pods and Containers + section: + - title: Defining Environment Variables for a Container + path: /docs/tasks/configure-pod-container/define-environment-variable-container/ - title: Accessing Applications in a Cluster section: - title: Using Port Forwarding to Access Applications in a Cluster diff --git a/_includes/task-tutorial-prereqs.md b/_includes/task-tutorial-prereqs.md new file mode 100644 index 0000000000..a9cf90d265 --- /dev/null +++ b/_includes/task-tutorial-prereqs.md @@ -0,0 +1,4 @@ +You need to have a Kubernetes cluster, and the kubectl command-line tool must +be configured to communicate with your cluster. If you do not already have a +cluster, you can create one by using +[Minikube](/docs/getting-started-guides/minikube). diff --git a/docs/tasks/configure-pod-container/define-environment-variable-container.md b/docs/tasks/configure-pod-container/define-environment-variable-container.md new file mode 100644 index 0000000000..2cba3c55f1 --- /dev/null +++ b/docs/tasks/configure-pod-container/define-environment-variable-container.md @@ -0,0 +1,77 @@ +--- +--- + +{% capture overview %} + +This page shows how to define environment variables when you run a container +in a Kubernetes Pod. + +{% endcapture %} + + +{% capture prerequisites %} + +{% include task-tutorial-prereqs.md %} + +{% endcapture %} + + +{% capture steps %} + +### Defining an environment variable for a container + +When you create a Pod, you can set environment variables for the containers +that run in the Pod. To set environment variables, include the `env` field in +the configuration file. + +In this exercise, you create a Pod that runs one container. The configuration +file for the Pod defines an environment variable with name `DEMO_GREETING` and +value `"Hello from the environment"`. Here is the configuration file for the +Pod: + +{% include code.html language="yaml" file="envars.yaml" ghlink="/docs/tasks/configure-pod-container/envars.yaml" %} + +1. Create a Pod based on the YAML configuration file: + + export REPO=https://raw.githubusercontent.com/kubernetes/kubernetes.github.io/master + kubectl create -f $REPO/docs/tasks/configure-pod-container/envars.yaml + +1. List the running Pods: + + kubectl get pods + + The output is similar to this: + + NAME READY STATUS RESTARTS AGE + envar-demo 1/1 Running 0 9s + +1. Get a shell to the container running in your Pod: + + kubectl exec -it envar-demo -- /bin/bash + +1. In your shell, run the `printenv` command to list the environment variables. + + root@envar-demo:/# printenv + + The output is similar to this: + + NODE_VERSION=4.4.2 + EXAMPLE_SERVICE_PORT_8080_TCP_ADDR=10.3.245.237 + HOSTNAME=envar-demo + ... + DEMO_GREETING=Hello from the environment + +1. To exit the shell, enter `exit`. + +{% endcapture %} + +{% capture whatsnext %} + +* Learn more about [environment variables](/docs/user-guide/environment-guide/). +* Learn about [using secrets as environment variables](/docs/user-guide/secrets/#using-secrets-as-environment-variables). +* See [EnvVarSource](/docs/api-reference/v1/definitions/#_v1_envvarsource). + +{% endcapture %} + + +{% include templates/task.md %} diff --git a/docs/tasks/configure-pod-container/envars.yaml b/docs/tasks/configure-pod-container/envars.yaml new file mode 100644 index 0000000000..97b296ac52 --- /dev/null +++ b/docs/tasks/configure-pod-container/envars.yaml @@ -0,0 +1,13 @@ +apiVersion: v1 +kind: Pod +metadata: + name: envar-demo + labels: + purpose: demonstrate-envars +spec: + containers: + - name: envar-demo-container + image: gcr.io/google-samples/node-hello:1.0 + env: + - name: DEMO_GREETING + value: "Hello from the environment" From 4f0d6c160907044e6ce4c4940b3d69ee0e952c77 Mon Sep 17 00:00:00 2001 From: Bryan Boreham Date: Thu, 20 Oct 2016 09:48:17 +0100 Subject: [PATCH 107/688] Adjust wording per review comments --- docs/admin/network-plugins.md | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/docs/admin/network-plugins.md b/docs/admin/network-plugins.md index 0d7f8981e2..b20e788b1a 100644 --- a/docs/admin/network-plugins.md +++ b/docs/admin/network-plugins.md @@ -40,11 +40,11 @@ The CNI plugin is selected by passing Kubelet the `--network-plugin=cni` command ### kubenet -Kubenet is intended to be a very basic, simple network plugin, on Linux only. It does not, of itself, implement more advanced features like cross-node networking or network policy. It is typically used together with a cloud provider that sets up routing rules for communication between nodes, or in single-node environments. +Kubenet is a very basic, simple network plugin, on Linux only. It does not, of itself, implement more advanced features like cross-node networking or network policy. It is typically used together with a cloud provider that sets up routing rules for communication between nodes, or in single-node environments. Kubenet creates a Linux bridge named `cbr0` and creates a veth pair for each pod with the host end of each pair connected to `cbr0`. The pod end of the pair is assigned an IP address allocated from a range assigned to the node either through configuration or by the controller-manager. `cbr0` is assigned an MTU matching the smallest MTU of an enabled normal interface on the host. -The kubenet plugin is currently mutually exclusive with, and will eventually replace, the --configure-cbr0 option. It is also currently incompatible with the flannel experimental overlay. +The kubenet plugin is mutually exclusive with the --configure-cbr0 option. The plugin requires a few things: From ff780984743807c4db523246ca2c141ffbc4a00b Mon Sep 17 00:00:00 2001 From: Sascha Brawer Date: Thu, 20 Oct 2016 07:50:07 -0700 Subject: [PATCH 108/688] Fix broken links in work queue user guide --- docs/user-guide/jobs/work-queue-1/index.md | 8 ++++---- docs/user-guide/jobs/work-queue-2/index.md | 4 ++-- 2 files changed, 6 insertions(+), 6 deletions(-) diff --git a/docs/user-guide/jobs/work-queue-1/index.md b/docs/user-guide/jobs/work-queue-1/index.md index e579f4b295..9b0735b574 100644 --- a/docs/user-guide/jobs/work-queue-1/index.md +++ b/docs/user-guide/jobs/work-queue-1/index.md @@ -166,7 +166,7 @@ We will use the `amqp-consume` utility to read the message from the queue and run our actual program. Here is a very simple example program: -{% include code.html language="python" file="worker.py" ghlink="/docs/user-guide/job/work-queue-1/worker.py" %} +{% include code.html language="python" file="worker.py" ghlink="/docs/user-guide/jobs/work-queue-1/worker.py" %} Now, build an image. If you are working in the source tree, then change directory to `examples/job/work-queue-1`. @@ -204,7 +204,7 @@ Here is a job definition. You'll need to make a copy of the Job and edit the image to match the name you used, and call it `./job.yaml`. -{% include code.html language="yaml" file="job.yaml" ghlink="/docs/user-guide/job/work-queue-1/job.yaml" %} +{% include code.html language="yaml" file="job.yaml" ghlink="/docs/user-guide/jobs/work-queue-1/job.yaml" %} In this example, each pod works on one item from the queue and then exits. So, the completion count of the Job corresponds to the number of work items @@ -258,12 +258,12 @@ want to consider one of the other [job patterns](/docs/user-guide/jobs/#job-patt This approach creates a pod for every work item. If your work items only take a few seconds, though, creating a Pod for every work item may add a lot of overhead. Consider another -[example](/docs/user-guide/job/work-queue-2), that executes multiple work items per Pod. +[example](/docs/user-guide/jobs/work-queue-2/), that executes multiple work items per Pod. In this example, we used use the `amqp-consume` utility to read the message from the queue and run our actual program. This has the advantage that you do not need to modify your program to be aware of the queue. -A [different example](/docs/user-guide/job/work-queue-2), shows how to +A [different example](/docs/user-guide/jobs/work-queue-2/), shows how to communicate with the work queue using a client library. ## Caveats diff --git a/docs/user-guide/jobs/work-queue-2/index.md b/docs/user-guide/jobs/work-queue-2/index.md index 328ece5a64..fc31850c91 100644 --- a/docs/user-guide/jobs/work-queue-2/index.md +++ b/docs/user-guide/jobs/work-queue-2/index.md @@ -108,7 +108,7 @@ called rediswq.py ([Download](rediswq.py?raw=true)). The "worker" program in each Pod of the Job uses the work queue client library to get work. Here it is: -{% include code.html language="python" file="worker.py" ghlink="/docs/user-guide/job/work-queue-2/worker.py" %} +{% include code.html language="python" file="worker.py" ghlink="/docs/user-guide/jobs/work-queue-2/worker.py" %} If you are working from the source tree, change directory to the `examples/job/work-queue-2` directory. @@ -147,7 +147,7 @@ gcloud docker push gcr.io//job-wq-2 Here is the job definition: -{% include code.html language="yaml" file="job.yaml" ghlink="/docs/user-guide/job/work-queue-2/job.yaml" %} +{% include code.html language="yaml" file="job.yaml" ghlink="/docs/user-guide/jobs/work-queue-2/job.yaml" %} Be sure to edit the job template to change `gcr.io/myproject` to your own path. From 98a4b521fd8fbf82426354705087ae0a78031cf7 Mon Sep 17 00:00:00 2001 From: Seth Jennings Date: Thu, 20 Oct 2016 10:46:51 -0500 Subject: [PATCH 109/688] AUTOSCALER not AUTOSCALING --- docs/admin/cluster-management.md | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/docs/admin/cluster-management.md b/docs/admin/cluster-management.md index 7781368bc8..97362c4bab 100644 --- a/docs/admin/cluster-management.md +++ b/docs/admin/cluster-management.md @@ -95,13 +95,13 @@ If you are using GCE then you can either enable it while creating a cluster with To configure cluser autoscaler you have to set 3 environment variables: * `KUBE_ENABLE_CLUSTER_AUTOSCALER` - it enables cluster autoscaler if set to true. -* `KUBE_AUTOSCALING_MIN_NODES` - minimum number of nodes in the cluster. -* `KUBE_AUTOSCALING_MAX_NODES` - maximum number of nodes in the cluster. +* `KUBE_AUTOSCALER_MIN_NODES` - minimum number of nodes in the cluster. +* `KUBE_AUTOSCALER_MAX_NODES` - maximum number of nodes in the cluster. Example: ```shell -KUBE_ENABLE_CLUSTER_AUTOSCALER=true KUBE_AUTOSCALING_MIN_NODES=3 KUBE_AUTOSCALING_MAX_NODES=10 NUM_NODES=5 ./cluster/kube-up.sh +KUBE_ENABLE_CLUSTER_AUTOSCALER=true KUBE_AUTOSCALER_MIN_NODES=3 KUBE_AUTOSCALER_MAX_NODES=10 NUM_NODES=5 ./cluster/kube-up.sh ``` On GKE you configure cluster autoscaler either on cluster creation or update or when creating a particular node pool From 32f45fb417fb3bf0fc29e6792fa059206af7ecd3 Mon Sep 17 00:00:00 2001 From: steveperry-53 Date: Thu, 20 Oct 2016 11:05:23 -0700 Subject: [PATCH 110/688] Write new task: Defining a Command and Arguments for a Container. --- _data/tasks.yml | 2 + .../configure-pod-container/commands.yaml | 12 ++++ .../define-command-argument-container.md | 69 +++++++++++++++++++ docs/tasks/index.md | 5 ++ 4 files changed, 88 insertions(+) create mode 100644 docs/tasks/configure-pod-container/commands.yaml create mode 100644 docs/tasks/configure-pod-container/define-command-argument-container.md diff --git a/_data/tasks.yml b/_data/tasks.yml index 91bbe1bcca..90c1f3b8b2 100644 --- a/_data/tasks.yml +++ b/_data/tasks.yml @@ -6,6 +6,8 @@ toc: section: - title: Defining Environment Variables for a Container path: /docs/tasks/configure-pod-container/define-environment-variable-container/ + - title: Defining a Command and Arguments for a Container + path: /docs/tasks/configure-pod-container/define-command-argument-container/ - title: Accessing Applications in a Cluster section: - title: Using Port Forwarding to Access Applications in a Cluster diff --git a/docs/tasks/configure-pod-container/commands.yaml b/docs/tasks/configure-pod-container/commands.yaml new file mode 100644 index 0000000000..8d58007db4 --- /dev/null +++ b/docs/tasks/configure-pod-container/commands.yaml @@ -0,0 +1,12 @@ +apiVersion: v1 +kind: Pod +metadata: + name: command-demo + labels: + purpose: demonstrate-command +spec: + containers: + - name: command-demo-container + image: debian + command: ["printenv"] + args: ["HOSTNAME", "KUBERNETES_PORT"] diff --git a/docs/tasks/configure-pod-container/define-command-argument-container.md b/docs/tasks/configure-pod-container/define-command-argument-container.md new file mode 100644 index 0000000000..bbff487674 --- /dev/null +++ b/docs/tasks/configure-pod-container/define-command-argument-container.md @@ -0,0 +1,69 @@ +--- +--- + +{% capture overview %} + +This page shows how to define commands and arguments when you run a container +in a Kubernetes Pod. + +{% endcapture %} + + +{% capture prerequisites %} + +{% include task-tutorial-prereqs.md %} + +{% endcapture %} + + +{% capture steps %} + +### Defining a command when you create a Pod + +When you create a Pod, you can specify a command and arguments for the +containers that run in the Pod. To specify a command, include the `command` +field in the configuration file. To specify arguments for the command, include +the `args` field in the configuration file. The command that you specify in the +configuration file overrides the usual entry point for the container. + +In this exercise, you create a Pod that runs one container. The configuration +file for the Pod defines a command and two arguments: + +{% include code.html language="yaml" file="commands.yaml" ghlink="/docs/tasks/configure-pod-container/commands.yaml" %} + +1. Create a Pod based on the YAML configuration file: + + export REPO=https://raw.githubusercontent.com/kubernetes/kubernetes.github.io/master + kubectl create -f $REPO/docs/tasks/configure-pod-container/commands.yaml + +1. List the running Pods: + + kubectl get pods + + The output shows that the container that ran in the command-demo Pod has + completed. + +1. To see the output of the command that ran in the container, view the logs +from the Pod: + + kubectl logs command-demo + + The output shows the values of the HOSTNAME and KUBERNETES_PORT environment + variables: + + command-demo + tcp://10.3.240.1:443 + +{% endcapture %} + +{% capture whatsnext %} + +* Learn more about [containers and commands](/docs/user-guide/containers/). +* Learn more about [configuring containers](/docs/user-guide/configuring-containers/). +* Learn more about [running commands in a container](/docs/user-guide/getting-into-containers/). +* See [Container](/docs/api-reference/v1/definitions/#_v1_container). + +{% endcapture %} + + +{% include templates/task.md %} diff --git a/docs/tasks/index.md b/docs/tasks/index.md index dcd9120e1b..fc08a0469a 100644 --- a/docs/tasks/index.md +++ b/docs/tasks/index.md @@ -3,6 +3,11 @@ The Tasks section of the Kubernetes documentation is a work in progress +#### Configuring Pods and Containers + +* [Defining Environment Variables for a Container](/docs/tasks/configure-pod-container/define-environment-variable-container/) +* [Defining a Command and Arguments for a Container](/docs/tasks/configure-pod-container/define-command-argument-container/) + #### Accessing Applications in a Cluster * [Using Port Forwarding to Access Applications in a Cluster](/docs/tasks/access-application-cluster/port-forward-access-application-cluster/) From 7b330390e2f83b6c9671581e9b3971329879a361 Mon Sep 17 00:00:00 2001 From: Jess Frazelle Date: Thu, 20 Oct 2016 12:23:08 -0700 Subject: [PATCH 111/688] mungers: fix preformat balance Signed-off-by: Jess Frazelle --- docs/user-guide/networkpolicies.md | 6 ++++-- docs/user-guide/production-pods.md | 6 ++++-- docs/user-guide/walkthrough/index.md | 6 ++++-- docs/user-guide/walkthrough/k8s201.md | 6 ++++-- 4 files changed, 16 insertions(+), 8 deletions(-) diff --git a/docs/user-guide/networkpolicies.md b/docs/user-guide/networkpolicies.md index a45534ad96..d1fe76d7ba 100644 --- a/docs/user-guide/networkpolicies.md +++ b/docs/user-guide/networkpolicies.md @@ -44,9 +44,11 @@ metadata: To configure the annotation via `kubectl`: -```shell{% raw %} +```shell +{% raw %} kubectl annotate ns "net.beta.kubernetes.io/network-policy={\"ingress\": {\"isolation\": \"DefaultDeny\"}}" -{% endraw %}``` +{% endraw %} +``` See the [NetworkPolicy getting started guide](/docs/getting-started-guides/network-policy/walkthrough) for an example. diff --git a/docs/user-guide/production-pods.md b/docs/user-guide/production-pods.md index c345ada200..440ac4619a 100644 --- a/docs/user-guide/production-pods.md +++ b/docs/user-guide/production-pods.md @@ -226,7 +226,8 @@ Here is a toy example: The message is recorded along with the other state of the last (i.e., most recent) termination: -```shell{% raw %} +```shell +{% raw %} $ kubectl create -f ./pod-w-message.yaml pod "pod-w-message" created $ sleep 70 @@ -234,7 +235,8 @@ $ kubectl get pods/pod-w-message -o go-template="{{range .status.containerStatus Sleep expired $ kubectl get pods/pod-w-message -o go-template="{{range .status.containerStatuses}}{{.lastState.terminated.exitCode}}{{end}}" 0 -{% endraw %}``` +{% endraw %} +``` ## What's next? diff --git a/docs/user-guide/walkthrough/index.md b/docs/user-guide/walkthrough/index.md index 4cc23cb71e..4c095e1c05 100644 --- a/docs/user-guide/walkthrough/index.md +++ b/docs/user-guide/walkthrough/index.md @@ -59,12 +59,14 @@ On most providers, the pod IPs are not externally accessible. The easiest way to Provided the pod IP is accessible, you should be able to access its http endpoint with wget on port 80: -```shell{% raw %} +```shell +{% raw %} $ kubectl run busybox --image=busybox --restart=Never --tty -i --generator=run-pod/v1 --env "POD_IP=$(kubectl get pod nginx -o go-template='{{.status.podIP}}')" u@busybox$ wget -qO- http://$POD_IP # Run in the busybox container u@busybox$ exit # Exit the busybox container $ kubectl delete pod busybox # Clean up the pod we created with "kubectl run" -{% endraw %}``` +{% endraw %} +``` Delete the pod by name: diff --git a/docs/user-guide/walkthrough/k8s201.md b/docs/user-guide/walkthrough/k8s201.md index 2f1f62ad1f..782bfbe418 100644 --- a/docs/user-guide/walkthrough/k8s201.md +++ b/docs/user-guide/walkthrough/k8s201.md @@ -136,7 +136,8 @@ On most providers, the service IPs are not externally accessible. The easiest wa Provided the service IP is accessible, you should be able to access its http endpoint with wget on the exposed port: -```shell{% raw %} +```shell +{% raw %} $ export SERVICE_IP=$(kubectl get service nginx-service -o go-template='{{.spec.clusterIP}}') $ export SERVICE_PORT=$(kubectl get service nginx-service -o go-template='{{(index .spec.ports 0).port}}') $ echo "$SERVICE_IP:$SERVICE_PORT" @@ -144,7 +145,8 @@ $ kubectl run busybox --generator=run-pod/v1 --image=busybox --restart=Never -- u@busybox$ wget -qO- http://$SERVICE_IP:$SERVICE_PORT # Run in the busybox container u@busybox$ exit # Exit the busybox container $ kubectl delete pod busybox # Clean up the pod we created with "kubectl run" -{% endraw %}``` +{% endraw %} +``` To delete the service by name: From a4972014d7fe95dec1447df9ca178a2b66b4f26a Mon Sep 17 00:00:00 2001 From: scotty Date: Thu, 20 Oct 2016 16:19:21 -0700 Subject: [PATCH 112/688] new partners layout --- _includes/partner-script.js | 202 +++++++++++++++++++++++ _includes/partner-style.css | 94 +++++++++++ images/community_logos/distelli_logo.png | Bin 0 -> 3872 bytes partners/index.html | 45 ++--- 4 files changed, 307 insertions(+), 34 deletions(-) create mode 100644 _includes/partner-script.js create mode 100644 _includes/partner-style.css create mode 100644 images/community_logos/distelli_logo.png diff --git a/_includes/partner-script.js b/_includes/partner-script.js new file mode 100644 index 0000000000..851b109e61 --- /dev/null +++ b/_includes/partner-script.js @@ -0,0 +1,202 @@ +;(function () { + var partners = [ + { + type: 0, + name: 'CoreOS', + logo: 'core_os', + link: 'https://tectonic.com/', + blurb: 'Tectonic is the enterprise-ready Kubernetes product, by CoreOS. It adds key features to allow you to manage, update, and control clusters in production.' + }, + { + type: 0, + name: 'Deis', + logo: 'deis', + link: 'https://deis.com', + blurb: 'Deis the creators of Helm, Workflow, and Steward, helps developers and operators build, deploy, manage and scale their applications on top of Kubernetes.' + }, + { + type: 0, + name: 'Sysdig Cloud', + logo: 'sys_dig', + link: 'https://sysdig.com/blog/monitoring-kubernetes-with-sysdig-cloud/', + blurb: 'Container native monitoring with deep support for Kubernetes.' + }, + { + type: 0, + name: 'Puppet', + logo: 'puppet', + link: 'https://puppet.com/blog/managing-kubernetes-configuration-puppet', + blurb: 'The Puppet module for Kubernetes makes it easy to manage Pods, Replication Controllers, Services and more in Kubernetes, and to build domain-specific interfaces to one\'s Kubernetes configuration.' + }, + { + type: 0, + name: 'Citrix', + logo: 'citrix', + link: 'http://wercker.com/workflows/partners/kubernetes/', + blurb: 'Netscaler CPX gives app developers all the features they need to load balance their microservices and containerized apps with Kubernetes.' + }, + { + type: 0, + name: 'Wercker', + logo: 'wercker', + link: 'http://wercker.com/workflows/partners/kubernetes/', + blurb: 'Wercker automates your build, test and deploy pipelines for launching containers and triggering rolling updates on your Kubernetes cluster. ' + }, + { + type: 0, + name: 'Rancher', + logo: 'rancher', + link: 'http://rancher.com/kubernetes/', + blurb: 'Rancher is an open-source, production-ready container management platform that makes it easy to deploy and leverage Kubernetes in the enterprise.' + }, + { + type: 0, + name: 'Red Hat', + logo: 'redhat', + link: 'https://www.openshift.com/', + blurb: 'Leverage an enterprise Kubernetes platform to orchestrate complex, multi-container apps.' + }, + { + type: 0, + name: 'Intel', + logo: 'intel', + link: 'https://tectonic.com/press/intel-coreos-collaborate-on-openstack-with-kubernetes.html', + blurb: 'Powering the GIFEE (Google’s Infrastructure for Everyone Else), to run OpenStack deployments on Kubernetes.' + }, + { + type: 0, + name: 'ElasticKube', + logo: 'elastickube', + link: 'https://www.ctl.io/elastickube-kubernetes/', + blurb: 'Self-service container management for Kubernetes.' + }, + { + type: 0, + name: 'Platform9', + logo: 'platform9', + link: 'https://platform9.com/products/kubernetes/', + blurb: 'Platform9 is the open source-as-a-service company that takes all of the goodness of Kubernetes and delivers it as a managed service.' + }, + { + type: 0, + name: 'Datadog', + logo: 'datadog', + link: 'http://docs.datadoghq.com/integrations/kubernetes/', + blurb: 'Full-stack observability for dynamic infrastructure & applications. Includes precision alerting, analytics and deep Kubernetes integrations. ' + }, + { + type: 0, + name: 'AppFormix', + logo: 'appformix', + link: 'http://www.appformix.com/solutions/appformix-for-kubernetes/', + blurb: 'AppFormix is a cloud infrastructure performance optimization service helping enterprise operators streamline their cloud operations on any Kubernetes cloud. ' + }, + { + type: 0, + name: 'Crunchy', + logo: 'crunchy', + link: 'http://info.crunchydata.com/blog/advanced-crunchy-containers-for-postgresql', + blurb: 'Crunchy PostgreSQL Container Suite is a set of containers for managing PostgreSQL with DBA microservices leveraging Kubernetes and Helm.' + }, + { + type: 0, + name: 'Aqua', + logo: 'aqua', + link: 'http://blog.aquasec.com/security-best-practices-for-kubernetes-deployment', + blurb: 'Deep, automated security for your containers running on Kubernetes.' + }, + { + type: 0, + name: 'Canonical', + logo: 'canonical', + link: 'https://jujucharms.com/canonical-kubernetes/', + blurb: 'The Canonical Distribution of Kubernetes enables you to operate Kubernetes clusters on demand on any major public cloud and private infrastructure.' + }, + { + type: 0, + name: 'Distelli', + logo: 'distelli', + link: 'https://www.distelli.com/', + blurb: 'Pipelines from your source repositories to your Kubernetes Clusters on any cloud.' + }, + { + type: 0, + name: 'Nuage networks', + logo: 'nuagenetworks', + link: 'https://github.com/nuagenetworks/nuage-kubernetes', + blurb: 'The Nuage SDN platform provides policy-based networking between Kubernetes Pods and non-Kubernetes environments with visibility and security monitoring.' + }, + { + type: 1, + name: 'Apprenda', + logo: 'apprenda', + link: 'https://apprenda.com/kubernetes-support/', + blurb: 'Apprenda offers flexible and wide range of support plans for pure play Kubernetes on your choice of infrastructure, cloud provider and operating system.' + }, + { + type: 1, + name: 'Reactive Ops', + logo: 'reactive_ops', + link: 'https://www.reactiveops.com/kubernetes/', + blurb: 'ReactiveOps has written automation on best practices for infrastructure as code on GCP & AWS using Kubernetes, helping you build and maintain a world-class infrastructure at a fraction of the price of an internal hire.' + }, + { + type: 1, + name: 'Livewyer', + logo: 'livewyer', + link: 'https://livewyer.io/services/kubernetes-experts/', + blurb: 'Kubernetes experts that on-board applications and empower IT teams to get the most out of containerised technology.' + }, + { + type: 1, + name: 'Deis', + logo: 'deis', + link: 'https://deis.com/services/', + blurb: 'Deis provides professional services and 24x7 operational support for any Kubernetes cluster managed by our global cluster operations team.' + }, + { + type: 1, + name: 'Samsung SDS', + logo: 'samsung_sds', + link: 'http://www.samsungsdsa.com/cloud-infrastructure_kubernetes', + blurb: 'Samsung SDS’s Cloud Native Computing Team offers expert consulting across the range of technical aspects involved in building services targeted at a Kubernetes cluster.' + }, + { + type: 1, + name: 'Container Solutions', + logo: 'container_solutions', + link: 'http://container-solutions.com/resources/kubernetes/', + blurb: 'Container Solutions is a premium software consultancy that focuses on programmable infrastructure, offering our expertise in software development, strategy and operations to help you innovate at speed and scale.' + } + ] + + var isvContainer = document.getElementById('isvContainer') + var servContainer = document.getElementById('servContainer') + + partners.forEach(function (obj) { + var box = document.createElement('div') + box.className = 'partner-box' + + var img = document.createElement('img') + img.src = '/images/square-logos/' + obj.logo + '.png' + + var div = document.createElement('div') + + var p = document.createElement('p') + p.textContent = obj.blurb + + var link = document.createElement('a') + link.href = obj.link + link.target = '_blank' + link.textContent = 'Learn more' + + div.appendChild(p) + div.appendChild(link) + + box.appendChild(img) + box.appendChild(div) + + var container = obj.type ? servContainer : isvContainer + container.appendChild(box) + }) +})(); \ No newline at end of file diff --git a/_includes/partner-style.css b/_includes/partner-style.css new file mode 100644 index 0000000000..a8cc125992 --- /dev/null +++ b/_includes/partner-style.css @@ -0,0 +1,94 @@ +h5 { + font-size: 18px; + line-height: 1.5em; + margin-bottom: 2em; +} + +#usersGrid a { + display: inline-block; + background-color: #f9f9f9; +} + +#isvContainer, #servContainer { + position: relative; + width: 100%; + display: flex; + justify-content: space-between; + flex-wrap: wrap; +} + +#isvContainer { + margin-bottom: 80px; +} + +.partner-box { + position: relative; + width: 47%; + max-width: 48%; + min-width: 48%; + margin-bottom: 20px; + padding: 20px; + flex: 1; + display: flex; + justify-content: space-between; + align-items: flex-start; +} + +.partner-box img { + background-color: #f9f9f9; +} + +.partner-box > div { + margin-left: 30px; +} + +.partner-box a { + color: #3576E3; +} + +@media screen and (max-width: 1024px) { + .partner-box { + flex-direction: column; + justify-content: flex-start; + } + + .partner-box > div { + margin: 20px 0 0; + } +} + +@media screen and (max-width: 568px) { + #isvContainer, #servContainer { + justify-content: center; + } + + .partner-box { + flex-direction: column; + justify-content: flex-start; + width: 100%; + max-width: 100%; + min-width: 100%; + } + + .partner-box > div { + margin: 20px 0 0; + } +} + +@media screen and (max-width: 568px) { + #isvContainer, #servContainer { + justify-content: center; + } + + .partner-box { + flex-direction: column; + justify-content: flex-start; + width: 100%; + max-width: 100%; + min-width: 100%; + } + + .partner-box > div { + margin: 20px 0 0; + } +} diff --git a/images/community_logos/distelli_logo.png b/images/community_logos/distelli_logo.png new file mode 100644 index 0000000000000000000000000000000000000000..d31e1d4226f49c9f27d66650e0456a35f35131cd GIT binary patch literal 3872 zcmcJS`6CmKJ@5(tv)55q`8r*{?XT!krAIq?eYQbK%(ih>eX$H461J~f>-ldBm% zSSY-3&h6+(Yv`yzlU6`Rt(@*e&296XlX!Oi?*9y~@ldF+2Z!^7U%!P~O;H}rk%)1b zC#Y+~^E+&>Pak#pC$yBQ!`*$yb&5j9BCQnVHcO7QveAgJwJ>tnkwz)O%zY#y=ubur ze+uMAkGh~sI|11IqQ{Lb^4$j=(l`2+?%IXPvaIlvnu&@pUBplJHPJq%Jyla5$Ne0{ z`Ci9nEHy5r`saSmuA0}R)d_cyKoK!)=xTmZ4g29H(srkjCFzCwy -vBlS?=?zf= zrAr)g%U9rRW?h$fF$gVUF9d`kBIf0?IJ9{re-0%sM_b7y71=*DZktu1mu%u)tcf{YN!&dZ+a7N zUBZ=ItESUx|``W07-Ft3|<4)lqv5)nkpuoSj@#rfgI@Rryy}*igwWA9$Vz!SA z$|K7!AA@A+c|CUq7-N|sT9?^$n7iRMq=JmcJ_}+Co8nYseQKX9+ODqEfAE!q#-K@0 zwODSBPG$f6P3@P^nWZlIqd~{U_a`4Vo~5Gyn3(u9dg6kFrd7)rZCt@E!9~m{M(~lu zn1II;||+l6!OUVG%kFLlB0!A}3-czVltaPtSR{wA#}rt`e= z@_=azt;VJm>TBWzR0?6ip1<+T3}sH$*tUI68ZP9`4(M&#j3+0M45J5R@D6y@tAnbL zT9=!Gb>>Vg#Y*n8*YQbs+6T3lz2MoRw%I2?r)Iwz_u0<7{Ml!sdthRUWlJN<)K&L# z{OmDi-TaNWX76a$nMG)T#8{J>sID(!bO&#gYkD1cv3or$ zf8~`YJlHNEf+!Q%mNG( zjDmn8daoO3HxkBztw+o%KsNto;x+Lh*AI($92r^?4jezg1(N=pHZ*Sz4BHG;sdpKB``G9j zh{c{(sgvB$ZOSxCx$Wl1*Nj1`FC~kA3qMQGLBx?0p`eErOOM-vwQ_FzlL9qMspWhd z7jIXuWZtT`Kuk~S_oKositZ zs_O}#v4#j`Bk23D7jYi5sP^IcUUQ#f0mq*<_eB~WxrL3tys1+CwfF`~(x=Nf6m4r$ znPyXq4p~EbiMTkPw^TuqDEG4KyaQ(SjEtnLS4Q^5Aa|TuW(f(dYFscPW1x=O|81+CU&H4KtZT zQ;Ra0Z8HkZHV{4cul)RSIKvBOi>Kn~+0N2SmkbM-cGySZhTkB0D?enbR!qW`eD_j*u zqt_7vbLLj2)E1_%lU_4T{0#v=H~Z)|Zx!?kUSWGGTBZzQkRH4vC;nCDZ2CJtlgQ7O z(VoGWYRY&&p}`+z?UAGMz*Hx5Cmxs8)p}QwLjKwIwPVjI*!jJj#|+4NzlxD?5k1iR=e{HO6$&nJgHnfja5Aj7q z4B;E0KZj?MQnF#)KjRn&I-!@WUBxDKx|J<>pfOl2QA=5p(48ig-)k?Ps_i_NtRsZC zD8EpK_}{}c`xB5M*@4^002y>lbuDxNV^+?CCTsuDp0|N$eek7_rcszDO?%^hBej($ z;MjMCFth1yK9{+Mjk^18VSEaPJzx#2#IIBQ zUeSGW!?rC-hb#|{w!XFN`$F)e*->Pb-hXw)pulvs*42ZD6&~OxxkNvaN`J|TX0FMo zv&)5N#bW(CDW>R4O&hip_Z^}L^f$v${G@FwBgkp$B~+0b25)jV{1wh5VN#70*tLN4 z9P>k%R!9lY6NVmq&E_kW`3>gVI(s8%_h2J~7fg&Vlb0Mnx~!y?fTK`Fr&Mn?CBX!~ z5*}=w$026al?Y~&g+(V%rBt-F+ayt?B}<`6US?&mZIVD5eHr$WED?{X+8xaJ!y-Q>@7? 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    We are working with a broad group of partners who contribute to the Kubernetes core codebase, making it stronger and richer, creating a vibrant Kubernetes ecosystem supporting a spectrum of complementing platforms, from open source solutions to market-leading technologies.

    ISV Partners

    -
    - - - - - - - - - - - - - - - - - - - - -
    +
    +

    Services Partners

    +
    - {% include footer.html %} {% include case-study-styles.html %} + + + + From 9b18efd3345496aa1e078a3c00b1b184ffec33a9 Mon Sep 17 00:00:00 2001 From: steveperry-53 Date: Thu, 20 Oct 2016 16:36:00 -0700 Subject: [PATCH 113/688] Write new task: Defining a Command and Arguments for a Container 2 --- .../define-command-argument-container.md | 36 +++++++++++++++---- 1 file changed, 30 insertions(+), 6 deletions(-) diff --git a/docs/tasks/configure-pod-container/define-command-argument-container.md b/docs/tasks/configure-pod-container/define-command-argument-container.md index bbff487674..1e623d9b43 100644 --- a/docs/tasks/configure-pod-container/define-command-argument-container.md +++ b/docs/tasks/configure-pod-container/define-command-argument-container.md @@ -18,13 +18,19 @@ in a Kubernetes Pod. {% capture steps %} -### Defining a command when you create a Pod +### Defining a command and arguments when you create a Pod -When you create a Pod, you can specify a command and arguments for the -containers that run in the Pod. To specify a command, include the `command` -field in the configuration file. To specify arguments for the command, include -the `args` field in the configuration file. The command that you specify in the -configuration file overrides the usual entry point for the container. +When you create a Pod, you can define a command and arguments for the +containers that run in the Pod. To define a command, include the `command` +field in the configuration file. To define arguments for the command, include +the `args` field in the configuration file. The command and arguments that +you define cannot be changed after the Pod is created. + +The command and arguments that you define in the configuration file +override the default command and arguments provided by the container image. +If you define args, but do not define a command, the default command is used +with your new arguments. For more information, see +[Commands and Capabilities](/docs/user-guide/containers/). In this exercise, you create a Pod that runs one container. The configuration file for the Pod defines a command and two arguments: @@ -54,6 +60,24 @@ from the Pod: command-demo tcp://10.3.240.1:443 +### Using environment variables to define arguments + +In the preceding example, you defined the arguments directly by +providing strings. As an alternative to providing strings directly, +you can define arguments by using environment variables. + + env: + - name: MESSAGE + value: "hello world" + command: ["/bin/echo"] + args: ["$(MESSAGE)"] + +This means you can define an argument for a Pod using any of +the techniques available for defining environment variables, including +[ConfigMaps](/docs/user-guide/configmap/) +and +[Secrets](/docs/user-guide/secrets/). + {% endcapture %} {% capture whatsnext %} From 973b6c1e996268b61e28831143e4a3fa0c479ef4 Mon Sep 17 00:00:00 2001 From: scotty Date: Fri, 21 Oct 2016 08:37:47 -0700 Subject: [PATCH 114/688] square logos --- images/square-logos/appformix.png | Bin 0 -> 8598 bytes images/square-logos/apprenda.png | Bin 0 -> 5933 bytes images/square-logos/aqua.png | Bin 0 -> 8847 bytes images/square-logos/canonical.png | Bin 0 -> 12615 bytes images/square-logos/citrix.png | Bin 0 -> 7569 bytes images/square-logos/container_solutions.png | Bin 0 -> 10083 bytes 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index fd7ed3eeef..40dd076b30 100644 --- a/partners/index.html +++ b/partners/index.html @@ -14,7 +14,7 @@ title: Partners
    -
    We are working with a broad group of partners who contribute to the Kubernetes core codebase, making it stronger and richer, creating a vibrant Kubernetes ecosystem supporting a spectrum of complementing platforms, from open source solutions to market-leading technologies.
    +
    We are working with a broad group of partners who contribute to the Kubernetes core codebase, making it stronger and richer. There partners create a vibrant Kubernetes ecosystem supporting a spectrum of complementing platforms, from open source solutions to market-leading technologies.

    ISV Partners

    Services Partners

    From a02e7918b0c29bff6b29b4d3e2cadf9fc7dff717 Mon Sep 17 00:00:00 2001 From: scotty Date: Fri, 21 Oct 2016 09:11:23 -0700 Subject: [PATCH 116/688] alpha sort partners --- _includes/partner-script.js | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/_includes/partner-script.js b/_includes/partner-script.js index 851b109e61..79cbf6d513 100644 --- a/_includes/partner-script.js +++ b/_includes/partner-script.js @@ -173,7 +173,13 @@ var isvContainer = document.getElementById('isvContainer') var servContainer = document.getElementById('servContainer') - partners.forEach(function (obj) { + var sorted = partners.sort(function (a, b) { + if (a.name > b.name) return 1 + if (a.name < b.name) return -1 + return 0 + }) + + sorted.forEach(function (obj) { var box = document.createElement('div') box.className = 'partner-box' From 5ea3366ddebce1a589942d50b7d4f569ceeae4d4 Mon Sep 17 00:00:00 2001 From: scotty Date: Fri, 21 Oct 2016 09:17:01 -0700 Subject: [PATCH 117/688] remove parters and customers from community page --- community.html | 42 ------------------------------------------ 1 file changed, 42 deletions(-) diff --git a/community.html b/community.html index f47bff33e7..1cc5d57141 100644 --- a/community.html +++ b/community.html @@ -29,20 +29,6 @@ title: Community from AWS and Openstack to Big Data and Scalability, there’s a place for you to contribute and instructions for forming a new SIG if your special interest isn’t covered (yet).

    -
    -

    Customers

    -
    - - - - - - - - - -
    -

    Events

    @@ -50,34 +36,6 @@ title: Community frameborder="0" scrolling="no">
    -
    -

    Partners

    -

    We are working with a broad group of partners who contribute to the kubernetes core codebase, making it stronger and richer, as well as help in growing the kubernetes ecosystem supporting - a sprectrum of compelmenting platforms, from open source solutions to market-leading technologies.

    -
    - - - - - - - - - - - - - - - - - - - - - -
    -
    From 772455e8c121e4bdb3faeeada6e2e5c309cd5a42 Mon Sep 17 00:00:00 2001 From: scotty Date: Fri, 21 Oct 2016 09:17:28 -0700 Subject: [PATCH 118/688] add partners to footer nav --- _includes/footer.html | 1 + _sass/_desktop.sass | 3 ++- _sass/_tablet.sass | 3 +-- 3 files changed, 4 insertions(+), 3 deletions(-) diff --git a/_includes/footer.html b/_includes/footer.html index f98dde06b5..15dacb72e0 100644 --- a/_includes/footer.html +++ b/_includes/footer.html @@ -4,6 +4,7 @@ Get Started Documentation Blog + Partners Community Case Studies diff --git a/_sass/_desktop.sass b/_sass/_desktop.sass index 033e998ba0..9c02fbcf6c 100644 --- a/_sass/_desktop.sass +++ b/_sass/_desktop.sass @@ -164,10 +164,11 @@ $video-section-height: 550px margin-bottom: 20px a - width: 20% + width: 16.65% float: left font-size: 24px font-weight: 300 + white-space: nowrap .social padding: 0 30px diff --git a/_sass/_tablet.sass b/_sass/_tablet.sass index ce9bcd941d..15d5b496f4 100644 --- a/_sass/_tablet.sass +++ b/_sass/_tablet.sass @@ -222,8 +222,7 @@ $feature-box-div-width: 45% text-align: center a - font-size: 22px - width: auto + width: 30% padding: 0 20px .social From 5c16dcf76560a10653fba09915b7ad65679d34e7 Mon Sep 17 00:00:00 2001 From: scotty Date: Fri, 21 Oct 2016 09:25:51 -0700 Subject: [PATCH 119/688] hiccup --- _includes/footer.html | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/_includes/footer.html b/_includes/footer.html index 15dacb72e0..b913c2a824 100644 --- a/_includes/footer.html +++ b/_includes/footer.html @@ -4,7 +4,7 @@ Get Started Documentation Blog - Partners + Partners Community Case Studies From 1e2a44d57f4c9bf8976727ca7ffbbfb118adb994 Mon Sep 17 00:00:00 2001 From: scotty Date: Fri, 21 Oct 2016 09:29:10 -0700 Subject: [PATCH 120/688] footer test --- _includes/footer.html | 1 + 1 file changed, 1 insertion(+) diff --git a/_includes/footer.html b/_includes/footer.html index b913c2a824..baac25dff3 100644 --- a/_includes/footer.html +++ b/_includes/footer.html @@ -1,5 +1,6 @@