Merge branch 'master' into master

This commit is contained in:
Jared
2016-11-21 15:07:07 -08:00
committed by GitHub
28 changed files with 94 additions and 974 deletions
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@@ -15,7 +15,7 @@ Add-ons in each section are sorted alphabetically - the ordering does not imply
* [Canal](https://github.com/tigera/canal/tree/master/k8s-install/kubeadm) unites Flannel and Calico, providing networking and network policy.
* [Flannel](https://github.com/coreos/flannel/blob/master/Documentation/kube-flannel.yml) is a overlay network provider that can be used with Kubernetes.
* [Romana](http://romana.io) is a Layer 3 networking solution for pod networks that also supports the [NetworkPolicy API](/docs/user-guide/networkpolicies/). Kubeadm add-on installation details available [here](https://github.com/romana/romana/tree/master/containerize).
* [Weave Net](https://github.com/weaveworks/weave-kube) provides networking and network policy, will carry on working on both sides of a network partition, and does not require an external database.
* [Weave Net](https://www.weave.works/docs/net/latest/kube-addon/) provides networking and network policy, will carry on working on both sides of a network partition, and does not require an external database.
## Visualization & Control
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@@ -6,7 +6,8 @@ assignees:
- deads2k
---
* TOC
{:toc}
## Users in Kubernetes
@@ -33,7 +34,7 @@ or be treated as an anonymous user.
## Authentication strategies
Kubernetes uses client certificates, bearer tokens, or HTTP basic auth to
Kubernetes uses client certificates, bearer tokens, an authenticating proxy, or HTTP basic auth to
authenticate API requests through authentication plugins. As HTTP request are
made to the API server plugins attempts to associate the following attributes
with the request:
@@ -360,6 +361,20 @@ An unsuccessful request would return:
HTTP status codes can be used to supply additional error context.
### Authenticating Proxy
The API server can be configured to identify users from request header values, such as `X-Remote-User`.
It is designed for use in combination with an authenticating proxy, which sets the request header value.
In order to prevent header spoofing, the authenticating proxy is required to present a valid client
certificate to the API server for validation against the specified CA before the request headers are
checked.
* `--requestheader-username-headers` Required, case-insensitive. Header names to check, in order, for the user identity. The first header containing a value is used as the identity.
* `--requestheader-client-ca-file` Required. PEM-encoded certificate bundle. A valid client certificate must be presented and validated against the certificate authorities in the specified file before the request headers are checked for user names.
* `--requestheader-allowed-names` Optional. List of common names (cn). If set, a valid client certificate with a Common Name (cn) in the specified list must be presented before the request headers are checked for user names. If empty, any Common Name is allowed.
### Keystone Password
Keystone authentication is enabled by passing the `--experimental-keystone-url=<AuthURL>`
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@@ -207,6 +207,29 @@ and [enable the API version](
/docs/admin/cluster-management/#turn-on-or-off-an-api-version-for-your-cluster),
with a `--runtime-config=` that includes `rbac.authorization.k8s.io/v1alpha1`.
### Privilege Escalation Prevention and Bootstrapping
The `rbac.authorization.k8s.io` API group inherently attempts to prevent users
from escalating privileges. Simply put, __a user can't grant permissions they
don't already have even when the RBAC authorizer it disabled__. If "user-1"
does not have the ability to read secrets in "namespace-a", they cannot create
a binding that would grant that permission to themselves or any other user.
For bootstrapping the first roles, it becomes necessary for someone to get
around these limitations. For the alpha release of RBAC, an API Server flag was
added to allow one user to step around all RBAC authorization and privilege
escalation checks. NOTE: _This is subject to change with future releases._
```
--authorization-rbac-super-user=admin
```
Once set the specified super user, in this case "admin", can be used to create
the roles and role bindings to initialize the system.
This flag is optional and once the initial bootstrapping is performed can be
unset.
### Roles, RolesBindings, ClusterRoles, and ClusterRoleBindings
The RBAC API Group declares four top level types which will be covered in this
@@ -417,29 +440,6 @@ subjects:
name: system:serviceaccounts
```
### Privilege Escalation Prevention and Bootstrapping
The `rbac.authorization.k8s.io` API group inherently attempts to prevent users
from escalating privileges. Simply put, __a user can't grant permissions they
don't already have even when the RBAC authorizer it disabled__. If "user-1"
does not have the ability to read secrets in "namespace-a", they cannot create
a binding that would grant that permission to themselves or any other user.
For bootstrapping the first roles, it becomes necessary for someone to get
around these limitations. For the alpha release of RBAC, an API Server flag was
added to allow one user to step around all RBAC authorization and privilege
escalation checks. NOTE: _This is subject to change with future releases._
```
--authorization-rbac-super-user=admin
```
Once set the specified super user, in this case "admin", can be used to create
the roles and role bindings to initialize the system.
This flag is optional and once the initial bootstrapping is performed can be
unset.
## Webhook Mode
When specified, mode `Webhook` causes Kubernetes to query an outside REST
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@@ -160,6 +160,7 @@ kubectl get pods busybox
```
You should see:
```
NAME READY STATUS RESTARTS AGE
busybox 1/1 Running 0 <some-time>
+3 -4
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@@ -100,16 +100,15 @@ for `${NODE_IP}` on each machine.
#### Validating your cluster
Once you copy this into all three nodes, you should have a clustered etcd set up. You can validate with
Once you copy this into all three nodes, you should have a clustered etcd set up. You can validate on master with
```shell
etcdctl member list
kubectl exec < pod_name > etcdctl member list
```
and
```shell
etcdctl cluster-health
kubectl exec < pod_name > etcdctl cluster-health
```
You can also validate that this is working with `etcdctl set foo bar` on one node, and `etcdctl get foo`
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@@ -1,4 +1,4 @@
---
---
assignees:
- lavalamp
- thockin
@@ -177,7 +177,7 @@ complicated way to build an overlay network. This is endorsed by several of the
### Project Calico
[Project Calico](https://github.com/projectcalico/calico-containers/blob/master/docs/cni/kubernetes/README.md) is an open source container networking provider and network policy engine.
[Project Calico](http://docs.projectcalico.org/) is an open source container networking provider and network policy engine.
Calico provides a highly scalable networking and network policy solution for connecting Kubernetes pods based on the same IP networking principles as the internet. Calico can be deployed without encapsulation or overlays to provide high-performance, high-scale data center networking. Calico also provides fine-grained, intent based network security policy for Kubernetes pods via its distributed firewall.
@@ -33,7 +33,7 @@ cd kubernetes
make release
```
For more details on the release process see the [`build/` directory](http://releases.k8s.io/{{page.githubbranch}}/build/)
For more details on the release process see the [`build/`](http://releases.k8s.io/{{page.githubbranch}}/build/) directory
### Download Kubernetes and automatically set up a default cluster
@@ -57,4 +57,4 @@ Possible values for `YOUR_PROVIDER` include:
* `vsphere` - VMWare VSphere
* `rackspace` - Rackspace
For the complete, up-to-date list of providers supported by this script, see [the `/cluster` folder in the main Kubernetes repo](https://github.com/kubernetes/kubernetes/tree/{{page.githubbranch}}/cluster), where each folder represents a possible value for `YOUR_PROVIDER`. If you don't see your desired provider, try looking at our [getting started guides](/docs/getting-started-guides); there's a good chance we have docs for them.
For the complete, up-to-date list of providers supported by this script, see the [`/cluster`](https://github.com/kubernetes/kubernetes/tree/{{page.githubbranch}}/cluster) folder in the main Kubernetes repo, where each folder represents a possible value for `YOUR_PROVIDER`. If you don't see your desired provider, try looking at our [getting started guides](/docs/getting-started-guides); there's a good chance we have docs for them.
+1 -1
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@@ -10,7 +10,7 @@ CloudStack is a software to build public and private clouds based on hardware vi
[CoreOS](http://coreos.com) templates for CloudStack are built [nightly](http://stable.release.core-os.net/amd64-usr/current/). CloudStack operators need to [register](http://docs.cloudstack.apache.org/projects/cloudstack-administration/en/latest/templates.html) this template in their cloud before proceeding with these Kubernetes deployment instructions.
This guide uses an [Ansible playbook](https://github.com/runseb/ansible-kubernetes).
This is a completely automated, a single playbook deploys Kubernetes based on the coreOS [instructions](/docs/getting-started-guides/coreos/coreos_multinode_cluster).
This is completely automated, a single playbook deploys Kubernetes.
This [Ansible](http://ansibleworks.com) playbook deploys Kubernetes on a CloudStack based Cloud using CoreOS images. The playbook, creates an ssh key pair, creates a security group and associated rules and finally starts coreOS instances configured via cloud-init.
@@ -1,209 +0,0 @@
---
---
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.
- `<SSH_PUBLIC_KEY>`: 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>`: Hostname for this node (e.g. kube-node1, kube-node2)
- `<SSH_PUBLIC_KEY>`: The public key you will use for SSH access to this server.
- `<KUBERNETES_MASTER>`: The IPv4 address of the Kubernetes master.
4. Replace the following placeholders with the contents of their respective files.
- `<CA_CERT>`: Complete contents of `ca.pem`
- `<CA_KEY_CERT>`: 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: |
> <CA_CERT>
> ```
>
> 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
> ...<snip>...
> 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://<KUBERNETES_MASTER> --certificate-authority=<CA_CERT_PATH>
kubectl config set-credentials calico-admin --certificate-authority=<CA_CERT_PATH> --client-key=<ADMIN_KEY_PATH> --client-certificate=<ADMIN_CERT_PATH>
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=<master_ip:6666> calicoctl pool add <CONTAINER_SUBNET> --nat-outgoing
```
By default, `<CONTAINER_SUBNET>` will be `192.168.0.0/16`. You can find out which pools have been configured with the following command:
```shell
ETCD_AUTHORITY=<master_ip:6666> 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.
@@ -1,197 +0,0 @@
---
assignees:
- dchen1107
---
Use the [master.yaml](/docs/getting-started-guides/coreos/cloud-configs/master.yaml) and [node.yaml](/docs/getting-started-guides/coreos/cloud-configs/node.yaml) cloud-configs to provision a multi-node Kubernetes cluster.
> **Attention**: This requires at least CoreOS version **[695.0.0][coreos695]**, which includes `etcd2`.
[coreos695]: https://coreos.com/releases/#695.0.0
* TOC
{:toc}
### AWS
*Attention:* Replace `<ami_image_id>` below for a [suitable version of CoreOS image for AWS](https://coreos.com/docs/running-coreos/cloud-providers/ec2/).
#### Provision the Master
```shell
aws ec2 create-security-group --group-name kubernetes --description "Kubernetes Security Group"
aws ec2 authorize-security-group-ingress --group-name kubernetes --protocol tcp --port 22 --cidr 0.0.0.0/0
aws ec2 authorize-security-group-ingress --group-name kubernetes --protocol tcp --port 80 --cidr 0.0.0.0/0
aws ec2 authorize-security-group-ingress --group-name kubernetes --source-security-group-name kubernetes
```
```shell
aws ec2 run-instances \
--image-id <ami_image_id> \
--key-name <keypair> \
--region us-west-2 \
--security-groups kubernetes \
--instance-type m3.medium \
--user-data file://master.yaml
```
#### Capture the private IP address
```shell
aws ec2 describe-instances --instance-id <master-instance-id>
```
#### Edit node.yaml
Edit `node.yaml` and replace all instances of `<master-private-ip>` with the private IP address of the master node.
#### Provision worker nodes
```shell
aws ec2 run-instances \
--count 1 \
--image-id <ami_image_id> \
--key-name <keypair> \
--region us-west-2 \
--security-groups kubernetes \
--instance-type m3.medium \
--user-data file://node.yaml
```
### Google Compute Engine (GCE)
*Attention:* Replace `<gce_image_id>` below for a [suitable version of CoreOS image for Google Compute Engine](https://coreos.com/docs/running-coreos/cloud-providers/google-compute-engine/).
#### Provision the Master
```shell
gcloud compute instances create master \
--image-project coreos-cloud \
--image <gce_image_id> \
--boot-disk-size 200GB \
--machine-type n1-standard-1 \
--zone us-central1-a \
--metadata-from-file user-data=master.yaml
```
#### Capture the private IP address
```shell
gcloud compute instances list
```
#### Edit node.yaml
Edit `node.yaml` and replace all instances of `<master-private-ip>` with the private IP address of the master node.
#### Provision worker nodes
```shell
gcloud compute instances create node1 \
--image-project coreos-cloud \
--image <gce_image_id> \
--boot-disk-size 200GB \
--machine-type n1-standard-1 \
--zone us-central1-a \
--metadata-from-file user-data=node.yaml
```
#### Establish network connectivity
Next, setup an ssh tunnel to the master so you can run kubectl from your local host.
In one terminal, run `gcloud compute ssh master --ssh-flag="-L 8080:127.0.0.1:8080"` and in a second
run `gcloud compute ssh master --ssh-flag="-R 8080:127.0.0.1:8080"`.
### OpenStack
These instructions are for running on the command line. Most of this you can also do through the Horizon dashboard.
These instructions were tested on the Ice House release on a Metacloud distribution of OpenStack but should be similar if not the same across other versions/distributions of OpenStack.
#### Make sure you can connect with OpenStack
Make sure the environment variables are set for OpenStack such as:
```shell
OS_TENANT_ID
OS_PASSWORD
OS_AUTH_URL
OS_USERNAME
OS_TENANT_NAME
```
Test this works with something like:
```shell
nova list
```
#### Get a Suitable CoreOS Image
You'll need a [suitable version of CoreOS image for OpenStack](https://coreos.com/os/docs/latest/booting-on-openstack.html)
Once you download that, upload it to glance. An example is shown below:
```shell
glance image-create --name CoreOS723 \
--container-format bare --disk-format qcow2 \
--file coreos_production_openstack_image.img \
--is-public True
```
#### Create security group
```shell
nova secgroup-create kubernetes "Kubernetes Security Group"
nova secgroup-add-rule kubernetes tcp 22 22 0.0.0.0/0
nova secgroup-add-rule kubernetes tcp 80 80 0.0.0.0/0
```
#### Provision the Master
```shell
nova boot \
--image <image_name> \
--key-name <my_key> \
--flavor <flavor id> \
--security-group kubernetes \
--user-data files/master.yaml \
kube-master
```
`<image_name>` is the CoreOS image name. In our example we can use the image we created in the previous step and put in 'CoreOS723'
`<my_key>` is the keypair name that you already generated to access the instance.
`<flavor_id>` is the flavor ID you use to size the instance. Run `nova flavor-list` to get the IDs. 3 on the system this was tested with gives the m1.large size.
The important part is to ensure you have the files/master.yml as this is what will do all the post boot configuration. This path is relevant so we are assuming in this example that you are running the nova command in a directory where there is a subdirectory called files that has the master.yml file in it. Absolute paths also work.
Next, assign it a public IP address:
```shell
nova floating-ip-list
```
Get an IP address that's free and run:
```shell
nova floating-ip-associate kube-master <ip address>
```
where `<ip address>` is the IP address that was available from the `nova floating-ip-list` command.
#### Provision Worker Nodes
Edit `node.yaml` and replace all instances of `<master-private-ip>` with the private IP address of the master node. You can get this by running `nova show kube-master` assuming you named your instance kube master. This is not the floating IP address you just assigned it.
```shell
nova boot \
--image <image_name> \
--key-name <my_key> \
--flavor <flavor id> \
--security-group kubernetes \
--user-data files/node.yaml \
minion01
```
This is basically the same as the master nodes but with the node.yaml post-boot script instead of the master.
@@ -41,12 +41,6 @@ A generic guide to setting up an HA cluster on any cloud or bare metal, with ful
These guides are maintained by community members, cover specific platforms and use cases, and experiment with different ways of configuring Kubernetes on CoreOS.
[**Multi-node Cluster**](/docs/getting-started-guides/coreos/coreos_multinode_cluster)
Set up a single master, multi-worker cluster on your choice of platform: AWS, GCE, or VMware Fusion.
<hr/>
[**Easy Multi-node Cluster on Google Compute Engine**](https://github.com/rimusz/coreos-multi-node-k8s-gce/blob/master/README.md)
Scripted installation of a single master, multi-worker cluster on GCE. Kubernetes components are managed by [fleet](https://github.com/coreos/fleet).
+3 -2
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@@ -43,6 +43,8 @@ clusters.
[KCluster.io](https://kcluster.io) provides highly available and scalable managed Kubernetes clusters for AWS.
[Platform9](https://platform9.com/products/kubernetes/) offers managed Kubernetes on-premises or any public cloud, and provides 24/7 health monitoring and alerting.
### Turn-key Cloud Solutions
These solutions allow you to create Kubernetes clusters on a range of Cloud IaaS providers with only a
@@ -123,6 +125,7 @@ GKE | | | GCE | [docs](https://clou
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
Platform9 | | multi-support | multi-support | [docs](https://platform9.com/products/kubernetes/) | | 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))
@@ -140,7 +143,6 @@ AWS | CoreOS | CoreOS | flannel | [docs](/docs/gettin
GCE | CoreOS | CoreOS | flannel | [docs](/docs/getting-started-guides/coreos) | | Community ([@pires](https://github.com/pires))
Vagrant | CoreOS | CoreOS | flannel | [docs](/docs/getting-started-guides/coreos) | | Community ([@pires](https://github.com/pires), [@AntonioMeireles](https://github.com/AntonioMeireles))
Bare-metal (Offline) | CoreOS | CoreOS | flannel | [docs](/docs/getting-started-guides/coreos/bare_metal_offline) | | Community ([@jeffbean](https://github.com/jeffbean))
Bare-metal | CoreOS | CoreOS | Calico | [docs](/docs/getting-started-guides/coreos/bare_metal_calico) | | Community ([@caseydavenport](https://github.com/caseydavenport))
CloudStack | Ansible | CoreOS | flannel | [docs](/docs/getting-started-guides/cloudstack) | | Community ([@runseb](https://github.com/runseb))
Vmware vSphere | Saltstack | Debian | OVS | [docs](/docs/getting-started-guides/vsphere) | | Community ([@imkin](https://github.com/imkin))
Vmware Photon | Saltstack | Debian | OVS | [docs](/docs/getting-started-guides/photon-controller) | | Community ([@alainroy](https://github.com/alainroy))
@@ -150,7 +152,6 @@ OpenStack/HPCloud | Juju | Ubuntu | flannel | [docs](/docs/gettin
Joyent | Juju | Ubuntu | flannel | [docs](/docs/getting-started-guides/juju) | | [Community](https://github.com/whitmo/bundle-kubernetes) ( [@whit](https://github.com/whitmo), [@matt](https://github.com/mbruzek), [@chuck](https://github.com/chuckbutler) )
AWS | Saltstack | Debian | AWS | [docs](/docs/getting-started-guides/aws) | | Community ([@justinsb](https://github.com/justinsb))
AWS | kops | Debian | AWS | [docs](https://github.com/kubernetes/kops) | | Community ([@justinsb](https://github.com/justinsb))
Bare-metal | custom | Ubuntu | Calico | [docs](/docs/getting-started-guides/ubuntu-calico) | | Community ([@djosborne](https://github.com/djosborne))
Bare-metal | custom | Ubuntu | flannel | [docs](/docs/getting-started-guides/ubuntu) | | Community ([@resouer](https://github.com/resouer), [@WIZARD-CXY](https://github.com/WIZARD-CXY))
libvirt/KVM | CoreOS | CoreOS | libvirt/KVM | [docs](/docs/getting-started-guides/libvirt-coreos) | | Community ([@lhuard1A](https://github.com/lhuard1A))
oVirt | | | | [docs](/docs/getting-started-guides/ovirt) | | Community ([@simon3z](https://github.com/simon3z))
+6
View File
@@ -26,6 +26,12 @@ a building block. kops builds on the kubeadm work.
### (1/5) Install kops
#### Requirements
You must have [kubectl](http://kubernetes.io/docs/getting-started-guides/kubectl/) installed in order for kops to work.
#### Installation
Download kops from the [releases page](https://github.com/kubernetes/kops/releases) (it is also easy to build from source):
On MacOS:
+1 -1
View File
@@ -260,7 +260,7 @@ If there is a firewall, make sure it exposes this port to the internet before yo
* To undo what `kubeadm` did, simply run:
# kubeadm reset
# kubeadm reset
If you wish to start over, run `systemctl start kubelet` followed by `kubeadm init` or `kubeadm join`.
@@ -121,7 +121,7 @@ setfacl -m g:kvm:--x ~
By default, the libvirt-coreos setup will create a single Kubernetes master and 3 Kubernetes nodes. Because the VM drives use Copy-on-Write and because of memory ballooning and KSM, there is a lot of resource over-allocation.
There is both an automated way and a manual, customizable way of setting up libvert Kubernetes clusters on CoreOS.
There is both an automated way and a manual, customizable way of setting up libvirt Kubernetes clusters on CoreOS.
#### Automated setup
+7 -7
View File
@@ -67,19 +67,19 @@ to run commands against the cluster.
```shell
# linux/amd64
curl -Lo kubectl http://storage.googleapis.com/kubernetes-release/release/{{page.version}}.0/bin/linux/amd64/kubectl && chmod +x kubectl && sudo mv kubectl /usr/local/bin/
curl -Lo kubectl https://storage.googleapis.com/kubernetes-release/release/{{page.version}}.0/bin/linux/amd64/kubectl && chmod +x kubectl && sudo mv kubectl /usr/local/bin/
# linux/386
curl -Lo kubectl http://storage.googleapis.com/kubernetes-release/release/{{page.version}}.0/bin/linux/386/kubectl && chmod +x kubectl && sudo mv kubectl /usr/local/bin/
curl -Lo kubectl https://storage.googleapis.com/kubernetes-release/release/{{page.version}}.0/bin/linux/386/kubectl && chmod +x kubectl && sudo mv kubectl /usr/local/bin/
# linux/arm
curl -Lo kubectl http://storage.googleapis.com/kubernetes-release/release/{{page.version}}.0/bin/linux/arm/kubectl && chmod +x kubectl && sudo mv kubectl /usr/local/bin/
curl -Lo kubectl https://storage.googleapis.com/kubernetes-release/release/{{page.version}}.0/bin/linux/arm/kubectl && chmod +x kubectl && sudo mv kubectl /usr/local/bin/
# linux/arm64
curl -Lo kubectl http://storage.googleapis.com/kubernetes-release/release/{{page.version}}.0/bin/linux/arm64/kubectl && chmod +x kubectl && sudo mv kubectl /usr/local/bin/
curl -Lo kubectl https://storage.googleapis.com/kubernetes-release/release/{{page.version}}.0/bin/linux/arm64/kubectl && chmod +x kubectl && sudo mv kubectl /usr/local/bin/
#linux/ppc64le
curl -Lo kubectl http://storage.googleapis.com/kubernetes-release/release/{{page.version}}.0/bin/linux/ppc64le/kubectl && chmod +x kubectl && sudo mv kubectl /usr/local/bin/
curl -Lo kubectl https://storage.googleapis.com/kubernetes-release/release/{{page.version}}.0/bin/linux/ppc64le/kubectl && chmod +x kubectl && sudo mv kubectl /usr/local/bin/
# OS X/amd64
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/
curl -Lo kubectl https://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/
curl -Lo kubectl https://storage.googleapis.com/kubernetes-release/release/{{page.version}}.0/bin/darwin/386/kubectl && chmod +x kubectl && sudo mv kubectl /usr/local/bin/
```
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.
@@ -12,7 +12,7 @@ export KUBE_NODE_OS_DISTRIBUTION=debian
curl -sS https://get.k8s.io | bash
```
See the [Calico documentation](https://github.com/projectcalico/calico-containers/tree/master/docs/cni/kubernetes#getting-started) for more options to deploy Calico with Kubernetes.
See the [Calico documentation](http://docs.projectcalico.org/) for more options to deploy Calico with Kubernetes.
Once your cluster using Calico is running, you should see a collection of pods running in the `kube-system` Namespace that support Kubernetes NetworkPolicy.
@@ -1,484 +0,0 @@
---
---
This document describes how to deploy Kubernetes with Calico networking from scratch on _bare metal_ Ubuntu. 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).
This guide will set up a simple Kubernetes cluster with a single Kubernetes master and two Kubernetes nodes. We'll run Calico's etcd cluster on the master and install the Calico daemon on the master and nodes.
## Prerequisites and Assumptions
- This guide uses `systemd` for process management. Ubuntu 15.04 supports systemd natively as do a number of other Linux distributions.
- All machines should have Docker >= 1.7.0 installed.
- To install Docker on Ubuntu, follow [these instructions](https://docs.docker.com/installation/ubuntulinux/)
- All machines should have 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).
- This guide assumes that none of the hosts have been configured with any Kubernetes or Calico software.
- This guide will set up a secure, TLS-authenticated API server.
## Set up the master
### Configure TLS
The master requires the root CA public key, `ca.pem`; the apiserver certificate, `apiserver.pem` and its private key, `apiserver-key.pem`.
1. Create the file `openssl.cnf` with the following contents.
```conf
[req]
req_extensions = v3_req
distinguished_name = req_distinguished_name
[req_distinguished_name]
[ v3_req ]
basicConstraints = CA:FALSE
keyUsage = nonRepudiation, digitalSignature, keyEncipherment
subjectAltName = @alt_names
[alt_names]
DNS.1 = kubernetes
DNS.2 = kubernetes.default
IP.1 = 10.100.0.1
IP.2 = ${MASTER_IPV4}
```
> Replace ${MASTER_IPV4} with the Master's IP address on which the Kubernetes API will be accessible.
2. Generate the necessary TLS assets.
```shell
# Generate the root CA.
openssl genrsa -out ca-key.pem 2048
openssl req -x509 -new -nodes -key ca-key.pem -days 10000 -out ca.pem -subj "/CN=kube-ca"
# Generate the API server keypair.
openssl genrsa -out apiserver-key.pem 2048
openssl req -new -key apiserver-key.pem -out apiserver.csr -subj "/CN=kube-apiserver" -config openssl.cnf
openssl x509 -req -in apiserver.csr -CA ca.pem -CAkey ca-key.pem -CAcreateserial -out apiserver.pem -days 365 -extensions v3_req -extfile openssl.cnf
```
3. You should now have the following three files: `ca.pem`, `apiserver.pem`, and `apiserver-key.pem`. Send the three files to your master host (using `scp` for example).
4. 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
```
### Install Calico's etcd on the master
Calico needs its own etcd cluster to store its state. In this guide we install a single-node cluster on the master server.
> Note: In a production deployment we recommend running a distributed etcd cluster for redundancy. In this guide, we use a single etcd for simplicitly.
1. Download the template manifest file:
```shell
wget https://raw.githubusercontent.com/projectcalico/calico-cni/k8s-1.1-docs/samples/kubernetes/master/calico-etcd.manifest
```
2. Replace all instances of `<MASTER_IPV4>` in the `calico-etcd.manifest` file with your master's IP address.
3. Then, move the file to the `/etc/kubernetes/manifests` directory. This will not have any effect until we later run the kubelet, but Calico seems to tolerate the lack of its etcd in the interim.
```shell
sudo mv -f calico-etcd.manifest /etc/kubernetes/manifests
```
### Install Calico on the master
We need to install Calico on the master. This allows the master to route packets to the pods on other nodes.
1. Install the `calicoctl` tool:
```shell
wget https://github.com/projectcalico/calico-containers/releases/download/v0.15.0/calicoctl
chmod +x calicoctl
sudo mv calicoctl /usr/bin
```
2. Prefetch the calico/node container (this ensures that the Calico service starts immediately when we enable it):
```shell
sudo docker pull calico/node:v0.15.0
```
3. Download the `network-environment` template from the `calico-kubernetes` repository:
```shell
wget -O network-environment https://raw.githubusercontent.com/projectcalico/calico-cni/k8s-1.1-docs/samples/kubernetes/master/network-environment-template
```
4. Edit `network-environment` to represent this node's settings:
- Replace `<KUBERNETES_MASTER>` with the IP address of the master. This should be the source IP address used to reach the Kubernetes worker nodes.
5. Move `network-environment` into `/etc`:
```shell
sudo mv -f network-environment /etc
```
6. Install, enable, and start the `calico-node` service:
```shell
sudo wget -N -P /etc/systemd https://raw.githubusercontent.com/projectcalico/calico-cni/k8s-1.1-docs/samples/kubernetes/common/calico-node.service
sudo systemctl enable /etc/systemd/calico-node.service
sudo systemctl start calico-node.service
```
### Install Kubernetes on the Master
We'll use the `kubelet` to bootstrap the Kubernetes master.
1. Download and install the `kubelet` and `kubectl` binaries:
```shell
sudo wget -N -P /usr/bin http://storage.googleapis.com/kubernetes-release/release/v1.1.4/bin/linux/amd64/kubectl
sudo wget -N -P /usr/bin http://storage.googleapis.com/kubernetes-release/release/v1.1.4/bin/linux/amd64/kubelet
sudo chmod +x /usr/bin/kubelet /usr/bin/kubectl
```
2. Install the `kubelet` systemd unit file and start the `kubelet`:
```shell
# Install the unit file
sudo wget -N -P /etc/systemd https://raw.githubusercontent.com/projectcalico/calico-cni/k8s-1.1-docs/samples/kubernetes/master/kubelet.service
# Enable the unit file so that it runs on boot
sudo systemctl enable /etc/systemd/kubelet.service
# Start the kubelet service
sudo systemctl start kubelet.service
```
3. Download and install the master manifest file, which will start the Kubernetes master services automatically:
```shell
sudo mkdir -p /etc/kubernetes/manifests
sudo wget -N -P /etc/kubernetes/manifests https://raw.githubusercontent.com/projectcalico/calico-cni/k8s-1.1-docs/samples/kubernetes/master/kubernetes-master.manifest
```
4. Check the progress by running `docker ps`. After a while, you should see the `etcd`, `apiserver`, `controller-manager`, `scheduler`, and `kube-proxy` containers running.
> Note: it may take some time for all the containers to start. Don't worry if `docker ps` doesn't show any containers for a while or if some containers start before others.
## Set up the nodes
The following steps should be run on each Kubernetes node.
### Configure TLS
Worker nodes require three keys: `ca.pem`, `worker.pem`, and `worker-key.pem`. We've already generated
`ca.pem` and `ca-key.pem` for use on the Master. The worker public/private keypair should be generated for each Kubernetes node.
1. Create the file `worker-openssl.cnf` with the following contents.
```conf
[req]
req_extensions = v3_req
distinguished_name = req_distinguished_name
[req_distinguished_name]
[ v3_req ]
basicConstraints = CA:FALSE
keyUsage = nonRepudiation, digitalSignature, keyEncipherment
subjectAltName = @alt_names
[alt_names]
IP.1 = $ENV::WORKER_IP
```
2. Generate the necessary TLS assets for this worker. This relies on the worker's IP address, and the `ca.pem` and `ca-key.pem` files generated earlier in the guide.
```shell
# Export this worker's IP address.
export WORKER_IP=<WORKER_IPV4>
```
```shell
# Generate keys.
openssl genrsa -out worker-key.pem 2048
openssl req -new -key worker-key.pem -out worker.csr -subj "/CN=worker-key" -config worker-openssl.cnf
openssl x509 -req -in worker.csr -CA ca.pem -CAkey ca-key.pem -CAcreateserial -out worker.pem -days 365 -extensions v3_req -extfile worker-openssl.cnf
```
3. Send the three files (`ca.pem`, `worker.pem`, and `worker-key.pem`) to the host (using scp, for example).
4. Move the files to the `/etc/kubernetes/ssl` folder with the appropriate permissions:
```shell
# Move keys
sudo mkdir -p /etc/kubernetes/ssl/
sudo mv -t /etc/kubernetes/ssl/ ca.pem worker.pem worker-key.pem
# Set permissions
sudo chmod 600 /etc/kubernetes/ssl/worker-key.pem
sudo chown root:root /etc/kubernetes/ssl/worker-key.pem
```
### Configure the kubelet worker
1. With your certs in place, create a kubeconfig for worker authentication in `/etc/kubernetes/worker-kubeconfig.yaml`; replace `<KUBERNETES_MASTER>` with the IP address of the master:
```yaml
apiVersion: v1
kind: Config
clusters:
- name: local
cluster:
server: https://<KUBERNETES_MASTER>:443
certificate-authority: /etc/kubernetes/ssl/ca.pem
users:
- name: kubelet
user:
client-certificate: /etc/kubernetes/ssl/worker.pem
client-key: /etc/kubernetes/ssl/worker-key.pem
contexts:
- context:
cluster: local
user: kubelet
name: kubelet-context
current-context: kubelet-context
```
### Install Calico on the node
On your compute nodes, it is important that you install Calico before Kubernetes. We'll install Calico using the provided `calico-node.service` systemd unit file:
1. Install the `calicoctl` binary:
```shell
wget https://github.com/projectcalico/calico-containers/releases/download/v0.15.0/calicoctl
chmod +x calicoctl
sudo mv calicoctl /usr/bin
```
2. Fetch the calico/node container:
```shell
sudo docker pull calico/node:v0.15.0
```
3. Download the `network-environment` template from the `calico-cni` repository:
```shell
wget -O network-environment https://raw.githubusercontent.com/projectcalico/calico-cni/k8s-1.1-docs/samples/kubernetes/node/network-environment-template
```
4. Edit `network-environment` to represent this node's settings:
- Replace `<DEFAULT_IPV4>` with the IP address of the node.
- Replace `<KUBERNETES_MASTER>` with the IP or hostname of the master.
5. Move `network-environment` into `/etc`:
```shell
sudo mv -f network-environment /etc
```
6. Install the `calico-node` service:
```shell
sudo wget -N -P /etc/systemd https://raw.githubusercontent.com/projectcalico/calico-cni/k8s-1.1-docs/samples/kubernetes/common/calico-node.service
sudo systemctl enable /etc/systemd/calico-node.service
sudo systemctl start calico-node.service
```
7. Install the Calico CNI plugins:
```shell
sudo mkdir -p /opt/cni/bin/
sudo wget -N -P /opt/cni/bin/ https://github.com/projectcalico/calico-cni/releases/download/v1.0.0/calico
sudo wget -N -P /opt/cni/bin/ https://github.com/projectcalico/calico-cni/releases/download/v1.0.0/calico-ipam
sudo chmod +x /opt/cni/bin/calico /opt/cni/bin/calico-ipam
```
8. Create a CNI network configuration file, which tells Kubernetes to create a network named `calico-k8s-network` and to use the calico plugins for that network. Create file `/etc/cni/net.d/10-calico.conf` with the following contents, replacing `<KUBERNETES_MASTER>` with the IP of the master (this file should be the same on each node):
```shell
# Make the directory structure.
mkdir -p /etc/cni/net.d
# Make the network configuration file
cat >/etc/cni/net.d/10-calico.conf <<EOF
{
"name": "calico-k8s-network",
"type": "calico",
"etcd_authority": "<KUBERNETES_MASTER>:6666",
"log_level": "info",
"ipam": {
"type": "calico-ipam"
}
}
EOF
```
Since this is the only network we create, it will be used by default by the kubelet.
9. Verify that Calico started correctly:
```shell
calicoctl status
```
should show that Felix (Calico's per-node agent) is running and the there should be a BGP status line for each other node that you've configured and the master. The "Info" column should show "Established":
```
$ calicoctl status
calico-node container is running. Status: Up 15 hours
Running felix version 1.3.0rc5
IPv4 BGP status
+---------------+-------------------+-------+----------+-------------+
| Peer address | Peer type | State | Since | Info |
+---------------+-------------------+-------+----------+-------------+
| 172.18.203.41 | node-to-node mesh | up | 17:32:26 | Established |
| 172.18.203.42 | node-to-node mesh | up | 17:32:25 | Established |
+---------------+-------------------+-------+----------+-------------+
IPv6 BGP status
+--------------+-----------+-------+-------+------+
| Peer address | Peer type | State | Since | Info |
+--------------+-----------+-------+-------+------+
+--------------+-----------+-------+-------+------+
```
If the "Info" column shows "Active" or some other value then Calico is having difficulty connecting to the other host. Check the IP address of the peer is correct and check that Calico is using the correct local IP address (set in the `network-environment` file above).
### Install Kubernetes on the Node
1. Download and Install the kubelet binary:
```shell
sudo wget -N -P /usr/bin http://storage.googleapis.com/kubernetes-release/release/v1.1.4/bin/linux/amd64/kubelet
sudo chmod +x /usr/bin/kubelet
```
2. Install the `kubelet` systemd unit file:
```shell
# Download the unit file.
sudo wget -N -P /etc/systemd https://raw.githubusercontent.com/projectcalico/calico-cni/k8s-1.1-docs/samples/kubernetes/node/kubelet.service
# Enable and start the unit files so that they run on boot
sudo systemctl enable /etc/systemd/kubelet.service
sudo systemctl start kubelet.service
```
3. Download the `kube-proxy` manifest:
```shell
wget https://raw.githubusercontent.com/projectcalico/calico-cni/k8s-1.1-docs/samples/kubernetes/node/kube-proxy.manifest
```
4. In that file, replace `<KUBERNETES_MASTER>` with your master's IP. Then move it into place:
```shell
sudo mkdir -p /etc/kubernetes/manifests/
sudo mv kube-proxy.manifest /etc/kubernetes/manifests/
```
## Configure kubectl remote access
To administer your cluster from a separate host (e.g your laptop), you will need the root CA generated earlier, as well as an admin public/private keypair (`ca.pem`, `admin.pem`, `admin-key.pem`). Run the following steps on the machine which you will use to control your cluster.
1. Download the kubectl binary.
```shell
sudo wget -N -P /usr/bin http://storage.googleapis.com/kubernetes-release/release/v1.1.4/bin/linux/amd64/kubectl
sudo chmod +x /usr/bin/kubectl
```
2. Generate the admin public/private keypair.
3. Export the necessary variables, substituting in correct values for your machine.
```shell
# Export the appropriate paths.
export CA_CERT_PATH=<PATH_TO_CA_PEM>
export ADMIN_CERT_PATH=<PATH_TO_ADMIN_PEM>
export ADMIN_KEY_PATH=<PATH_TO_ADMIN_KEY_PEM>
# Export the Master's IP address.
export MASTER_IPV4=<MASTER_IPV4>
```
4. Configure your host `kubectl` with the admin credentials:
```shell
kubectl config set-cluster calico-cluster --server=https://${MASTER_IPV4} --certificate-authority=${CA_CERT_PATH}
kubectl config set-credentials calico-admin --certificate-authority=${CA_CERT_PATH} --client-key=${ADMIN_KEY_PATH} --client-certificate=${ADMIN_CERT_PATH}
kubectl config set-context calico --cluster=calico-cluster --user=calico-admin
kubectl config use-context calico
```
Check your work with `kubectl get nodes`, which should succeed and display the 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. This step makes use of the kubectl configuration made above.
```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
```
Note: The Kubernetes UI addon is deprecated and has been replaced with Kubernetes dashboard. You can install it by running:
```shell
kubectl create -f https://rawgit.com/kubernetes/dashboard/master/src/deploy/kubernetes-dashboard.yaml
```
You can find the docs at [Kubernetes Dashboard](https://github.com/kubernetes/dashboard)
## 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=<master_ip:6666> calicoctl pool add <CONTAINER_SUBNET> --nat-outgoing
```
By default, `<CONTAINER_SUBNET>` will be `192.168.0.0/16`. You can find out which pools have been configured with the following command:
```shell
ETCD_AUTHORITY=<master_ip:6666> 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 | custom | Ubuntu | Calico | [docs](/docs/getting-started-guides/ubuntu-calico) | | Community ([@djosborne](https://github.com/djosborne))
For support level information on all solutions, see the [Table of solutions](/docs/getting-started-guides/#table-of-solutions) chart.
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@@ -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.
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@@ -53,18 +53,18 @@ Make sure you review the [beta limitations](https://github.com/kubernetes/contri
A minimal Ingress might look like:
```yaml
01. apiVersion: extensions/v1beta1
02. kind: Ingress
03. metadata:
04. name: test-ingress
05. spec:
06. rules:
07. - http:
08. paths:
09. - path: /testpath
10. backend:
11. serviceName: test
12. servicePort: 80
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
name: test-ingress
spec:
rules:
- http:
paths:
- path: /testpath
backend:
serviceName: test
servicePort: 80
```
*POSTing this to the API server will have no effect if you have not configured an [Ingress controller](#ingress-controllers).*
@@ -10,4 +10,4 @@ spec:
accessModes:
- ReadWriteOnce
hostPath:
path: "/somepath/data01"
path: "/tmp/data01"
@@ -27,7 +27,7 @@ for ease of development and testing. You'll create a local `HostPath` for this
support local storage on the host at this time. There is no guarantee your pod ends up on the correct node where the `HostPath` resides.
```shell
# This will be nginx's webroot
# This will be nginx's webroot; execute this on the node where your pod will run.
$ mkdir /tmp/data01
$ echo 'I love Kubernetes storage!' > /tmp/data01/index.html
```
@@ -125,4 +125,4 @@ I love Kubernetes storage!
Hopefully this simple guide is enough to get you started with PersistentVolumes. If you have any questions, join the team on [Slack](/docs/troubleshooting/#slack) and ask!
Enjoy!
Enjoy!
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@@ -220,7 +220,7 @@ The specification of a pre-stop hook is similar to that of probes, but without t
## Termination message
In order to achieve a reasonably high level of availability, especially for actively developed applications, it's important to debug failures quickly. Kubernetes can speed debugging by surfacing causes of fatal errors in a way that can be display using [`kubectl`](/docs/user-guide/kubectl/kubectl) or the [UI](/docs/user-guide/ui), in addition to general [log collection](/docs/user-guide/logging). It is possible to specify a `terminationMessagePath` where a container will write its 'death rattle'?, such as assertion failure messages, stack traces, exceptions, and so on. The default path is `/dev/termination-log`.
In order to achieve a reasonably high level of availability, especially for actively developed applications, it's important to debug failures quickly. Kubernetes can speed debugging by surfacing causes of fatal errors in a way that can be display using [`kubectl`](/docs/user-guide/kubectl/) or the [UI](/docs/user-guide/ui), in addition to general [log collection](/docs/user-guide/logging). It is possible to specify a `terminationMessagePath` where a container will write its 'death rattle'?, such as assertion failure messages, stack traces, exceptions, and so on. The default path is `/dev/termination-log`.
Here is a toy example:
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@@ -31,8 +31,8 @@ you get the raw json or yaml for a pod you have created (e.g. `kubectl get
pods/podname -o yaml`), you can see the `spec.serviceAccount` field has been
[automatically set](/docs/user-guide/working-with-resources/#resources-are-automatically-modified).
You can access the API using a proxy or with a client library, as described in
[Accessing the Cluster](/docs/user-guide/accessing-the-cluster/#accessing-the-api-from-a-pod).
With service accounts, you can access the API inside the pod using a proxy or with a client library,
as described in [Accessing the Cluster](/docs/user-guide/accessing-the-cluster/#accessing-the-api-from-a-pod).
## Using Multiple Service Accounts.
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@@ -115,12 +115,12 @@ make all four clusters available on both hosts by running
# on host2, copy host1's default kubeconfig, and merge it from env
$ scp host1:/path/to/home1/.kube/config /path/to/other/.kube/config
$ export $KUBECONFIG=/path/to/other/.kube/config
$ export KUBECONFIG=/path/to/other/.kube/config
# on host1, copy host2's default kubeconfig and merge it from env
$ scp host2:/path/to/home2/.kube/config /path/to/other/.kube/config
$ export $KUBECONFIG=/path/to/other/.kube/config
$ export KUBECONFIG=/path/to/other/.kube/config
```
Detailed examples and explanation of `kubeconfig` loading/merging rules can be found in [kubeconfig-file](/docs/user-guide/kubeconfig-file).
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@@ -22,7 +22,7 @@ Each `ThirdPartyResource` has the following:
* `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 `<kind name>.<domain>`. 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`.
The `kind` for a `ThirdPartyResource` takes the form `<kind name>.<domain>`. 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`. Hyphens 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.