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remove extra title kubectl cheatsheet

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Karen Bradshaw
2020-08-05 08:49:48 -04:00
parent 6fa854c10a
commit 672af3395a
1 changed files with 18 additions and 28 deletions
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content/en/docs/reference/kubectl/cheatsheet.md
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@@ -12,17 +12,11 @@ card:
<!-- overview --> <!-- overview -->
See also: [Kubectl Overview](/docs/reference/kubectl/overview/) and [JsonPath Guide](/docs/reference/kubectl/jsonpath). This page contains a list of commonly used `kubectl` commands and flags.
This page is an overview of the `kubectl` command.
<!-- body --> <!-- body -->
# kubectl - Cheat Sheet ## Kubectl autocomplete
## Kubectl Autocomplete
### BASH ### BASH
@@ -45,7 +39,7 @@ source <(kubectl completion zsh) # setup autocomplete in zsh into the current s
echo "[[ $commands[kubectl] ]] && source <(kubectl completion zsh)" >> ~/.zshrc # add autocomplete permanently to your zsh shell echo "[[ $commands[kubectl] ]] && source <(kubectl completion zsh)" >> ~/.zshrc # add autocomplete permanently to your zsh shell
``` ```
## Kubectl Context and Configuration ## Kubectl context and configuration
Set which Kubernetes cluster `kubectl` communicates with and modifies configuration Set which Kubernetes cluster `kubectl` communicates with and modifies configuration
information. See [Authenticating Across Clusters with kubeconfig](/docs/tasks/access-application-cluster/configure-access-multiple-clusters/) documentation for information. See [Authenticating Across Clusters with kubeconfig](/docs/tasks/access-application-cluster/configure-access-multiple-clusters/) documentation for
@@ -81,10 +75,11 @@ kubectl config set-context gce --user=cluster-admin --namespace=foo \
kubectl config unset users.foo # delete user foo kubectl config unset users.foo # delete user foo
``` ```
## Apply ## Kubectl apply
`apply` manages applications through files defining Kubernetes resources. It creates and updates resources in a cluster through running `kubectl apply`. This is the recommended way of managing Kubernetes applications on production. See [Kubectl Book](https://kubectl.docs.kubernetes.io). `apply` manages applications through files defining Kubernetes resources. It creates and updates resources in a cluster through running `kubectl apply`. This is the recommended way of managing Kubernetes applications on production. See [Kubectl Book](https://kubectl.docs.kubernetes.io).
## Creating Objects ## Creating objects
Kubernetes manifests can be defined in YAML or JSON. The file extension `.yaml`, Kubernetes manifests can be defined in YAML or JSON. The file extension `.yaml`,
`.yml`, and `.json` can be used. `.yml`, and `.json` can be used.
@@ -138,7 +133,7 @@ EOF
``` ```
## Viewing, Finding Resources ## Viewing, finding resources
```bash ```bash
# Get commands with basic output # Get commands with basic output
@@ -206,8 +201,7 @@ kubectl get events --sort-by=.metadata.creationTimestamp
kubectl diff -f ./my-manifest.yaml kubectl diff -f ./my-manifest.yaml
``` ```
## Updating Resources ## Updating resources
```bash ```bash
kubectl set image deployment/frontend www=image:v2 # Rolling update "www" containers of "frontend" deployment, updating the image kubectl set image deployment/frontend www=image:v2 # Rolling update "www" containers of "frontend" deployment, updating the image
@@ -234,7 +228,7 @@ kubectl annotate pods my-pod icon-url=http://goo.gl/XXBTWq # Add an annota
kubectl autoscale deployment foo --min=2 --max=10 # Auto scale a deployment "foo" kubectl autoscale deployment foo --min=2 --max=10 # Auto scale a deployment "foo"
``` ```
## Patching Resources ## Patching resources
```bash ```bash
# Partially update a node # Partially update a node
@@ -253,7 +247,8 @@ kubectl patch deployment valid-deployment --type json -p='[{"op": "remove", "
kubectl patch sa default --type='json' -p='[{"op": "add", "path": "/secrets/1", "value": {"name": "whatever" } }]' kubectl patch sa default --type='json' -p='[{"op": "add", "path": "/secrets/1", "value": {"name": "whatever" } }]'
``` ```
## Editing Resources ## Editing resources
Edit any API resource in your preferred editor. Edit any API resource in your preferred editor.
```bash ```bash
@@ -261,7 +256,7 @@ kubectl edit svc/docker-registry # Edit the service named d
KUBE_EDITOR="nano" kubectl edit svc/docker-registry # Use an alternative editor KUBE_EDITOR="nano" kubectl edit svc/docker-registry # Use an alternative editor
``` ```
## Scaling Resources ## Scaling resources
```bash ```bash
kubectl scale --replicas=3 rs/foo # Scale a replicaset named 'foo' to 3 kubectl scale --replicas=3 rs/foo # Scale a replicaset named 'foo' to 3
@@ -270,7 +265,7 @@ kubectl scale --current-replicas=2 --replicas=3 deployment/mysql # If the deplo
kubectl scale --replicas=5 rc/foo rc/bar rc/baz # Scale multiple replication controllers kubectl scale --replicas=5 rc/foo rc/bar rc/baz # Scale multiple replication controllers
``` ```
## Deleting Resources ## Deleting resources
```bash ```bash
kubectl delete -f ./pod.json # Delete a pod using the type and name specified in pod.json kubectl delete -f ./pod.json # Delete a pod using the type and name specified in pod.json
@@ -306,7 +301,7 @@ kubectl exec my-pod -c my-container -- ls / # Run command in existing po
kubectl top pod POD_NAME --containers # Show metrics for a given pod and its containers kubectl top pod POD_NAME --containers # Show metrics for a given pod and its containers
``` ```
## Interacting with Nodes and Cluster ## Interacting with Nodes and cluster
```bash ```bash
kubectl cordon my-node # Mark my-node as unschedulable kubectl cordon my-node # Mark my-node as unschedulable
@@ -386,17 +381,12 @@ Verbosity | Description
`--v=8` | Display HTTP request contents. `--v=8` | Display HTTP request contents.
`--v=9` | Display HTTP request contents without truncation of contents. `--v=9` | Display HTTP request contents without truncation of contents.
## {{% heading "whatsnext" %}} ## {{% heading "whatsnext" %}}
* Read the [kubectl overview](/docs/reference/kubectl/overview/) and learn about [JsonPath](/docs/reference/kubectl/jsonpath).
* Learn more about [Overview of kubectl](/docs/reference/kubectl/overview/).
* See [kubectl](/docs/reference/kubectl/kubectl/) options. * See [kubectl](/docs/reference/kubectl/kubectl/) options.
* Also [kubectl Usage Conventions](/docs/reference/kubectl/conventions/) to understand how to use it in reusable scripts. * Also read [kubectl Usage Conventions](/docs/reference/kubectl/conventions/) to understand how to use kubectl in reusable scripts.
* See more community [kubectl cheatsheets](https://github.com/dennyzhang/cheatsheet-kubernetes-A4). * See more community [kubectl cheatsheets](https://github.com/dennyzhang/cheatsheet-kubernetes-A4).