Chapter 2. OpenShift CLI (oc)

Now using project "my-project" on server "https://openshift.example.com:6443".

Now using project "my-project" on server "https://openshift.example.com:6443".

--> Found image 40de956 (9 days old) in imagestream "openshift/php" under tag "7.2" for "php"

...

    Run 'oc status' to view your app.

--> Found image 40de956 (9 days old) in imagestream "openshift/php" under tag "7.2" for "php"

...

    Run 'oc status' to view your app.

NAME                  READY   STATUS      RESTARTS   AGE     IP            NODE                           NOMINATED NODE
cakephp-ex-1-build    0/1     Completed   0          5m45s   10.131.0.10   ip-10-0-141-74.ec2.internal    <none>
cakephp-ex-1-deploy   0/1     Completed   0          3m44s   10.129.2.9    ip-10-0-147-65.ec2.internal    <none>
cakephp-ex-1-ktz97    1/1     Running     0          3m33s   10.128.2.11   ip-10-0-168-105.ec2.internal   <none>

NAME                  READY   STATUS      RESTARTS   AGE     IP            NODE                           NOMINATED NODE
cakephp-ex-1-build    0/1     Completed   0          5m45s   10.131.0.10   ip-10-0-141-74.ec2.internal    <none>
cakephp-ex-1-deploy   0/1     Completed   0          3m44s   10.129.2.9    ip-10-0-147-65.ec2.internal    <none>
cakephp-ex-1-ktz97    1/1     Running     0          3m33s   10.128.2.11   ip-10-0-168-105.ec2.internal   <none>

--> Scaling cakephp-ex-1 to 1
--> Success

--> Scaling cakephp-ex-1 to 1
--> Success

Using project "my-project" on server "https://openshift.example.com:6443".

Using project "my-project" on server "https://openshift.example.com:6443".

In project my-project on server https://openshift.example.com:6443

svc/cakephp-ex - 172.30.236.80 ports 8080, 8443
  dc/cakephp-ex deploys istag/cakephp-ex:latest <-
    bc/cakephp-ex source builds https://github.com/sclorg/cakephp-ex on openshift/php:7.2
    deployment #1 deployed 2 minutes ago - 1 pod

3 infos identified, use 'oc status --suggest' to see details.

In project my-project on server https://openshift.example.com:6443

svc/cakephp-ex - 172.30.236.80 ports 8080, 8443
  dc/cakephp-ex deploys istag/cakephp-ex:latest <-
    bc/cakephp-ex source builds https://github.com/sclorg/cakephp-ex on openshift/php:7.2
    deployment #1 deployed 2 minutes ago - 1 pod

3 infos identified, use 'oc status --suggest' to see details.

NAME                                  SHORTNAMES       APIGROUP                              NAMESPACED   KIND
bindings                                                                                     true         Binding
componentstatuses                     cs                                                     false        ComponentStatus
configmaps                            cm                                                     true         ConfigMap
...

NAME                                  SHORTNAMES       APIGROUP                              NAMESPACED   KIND
bindings                                                                                     true         Binding
componentstatuses                     cs                                                     false        ComponentStatus
configmaps                            cm                                                     true         ConfigMap
...

Update pod 'foo' with the annotation 'description' and the value 'my frontend'

  # Update pod 'foo' with the annotation 'description' and the value 'my frontend'
  # If the same annotation is set multiple times, only the last value will be applied
  oc annotate pods foo description='my frontend'

  # Update a pod identified by type and name in "pod.json"
  oc annotate -f pod.json description='my frontend'

  # Update pod 'foo' with the annotation 'description' and the value 'my frontend running nginx', overwriting any existing value
  oc annotate --overwrite pods foo description='my frontend running nginx'

  # Update all pods in the namespace
  oc annotate pods --all description='my frontend running nginx'

  # Update pod 'foo' only if the resource is unchanged from version 1
  oc annotate pods foo description='my frontend running nginx' --resource-version=1

  # Update pod 'foo' by removing an annotation named 'description' if it exists
  # Does not require the --overwrite flag
  oc annotate pods foo description-

Print the supported API resources

  # Print the supported API resources
  oc api-resources

  # Print the supported API resources with more information
  oc api-resources -o wide

  # Print the supported API resources sorted by a column
  oc api-resources --sort-by=name

  # Print the supported namespaced resources
  oc api-resources --namespaced=true

  # Print the supported non-namespaced resources
  oc api-resources --namespaced=false

  # Print the supported API resources with a specific APIGroup
  oc api-resources --api-group=rbac.authorization.k8s.io

Print the supported API versions

  # Print the supported API versions
  oc api-versions

Apply the configuration in pod.json to a pod

  # Apply the configuration in pod.json to a pod
  oc apply -f ./pod.json

  # Apply resources from a directory containing kustomization.yaml - e.g. dir/kustomization.yaml
  oc apply -k dir/

  # Apply the JSON passed into stdin to a pod
  cat pod.json | oc apply -f -

  # Apply the configuration from all files that end with '.json'
  oc apply -f '*.json'

  # Note: --prune is still in Alpha
  # Apply the configuration in manifest.yaml that matches label app=nginx and delete all other resources that are not in the file and match label app=nginx
  oc apply --prune -f manifest.yaml -l app=nginx

  # Apply the configuration in manifest.yaml and delete all the other config maps that are not in the file
  oc apply --prune -f manifest.yaml --all --prune-allowlist=core/v1/ConfigMap

Edit the last-applied-configuration annotations by type/name in YAML

  # Edit the last-applied-configuration annotations by type/name in YAML
  oc apply edit-last-applied deployment/nginx

  # Edit the last-applied-configuration annotations by file in JSON
  oc apply edit-last-applied -f deploy.yaml -o json

Set the last-applied-configuration of a resource to match the contents of a file

  # Set the last-applied-configuration of a resource to match the contents of a file
  oc apply set-last-applied -f deploy.yaml

  # Execute set-last-applied against each configuration file in a directory
  oc apply set-last-applied -f path/

  # Set the last-applied-configuration of a resource to match the contents of a file; will create the annotation if it does not already exist
  oc apply set-last-applied -f deploy.yaml --create-annotation=true

View the last-applied-configuration annotations by type/name in YAML

  # View the last-applied-configuration annotations by type/name in YAML
  oc apply view-last-applied deployment/nginx

  # View the last-applied-configuration annotations by file in JSON
  oc apply view-last-applied -f deploy.yaml -o json

Get output from running pod mypod; use the 'oc.kubernetes.io/default-container' annotation

  # Get output from running pod mypod; use the 'oc.kubernetes.io/default-container' annotation
  # for selecting the container to be attached or the first container in the pod will be chosen
  oc attach mypod

  # Get output from ruby-container from pod mypod
  oc attach mypod -c ruby-container

  # Switch to raw terminal mode; sends stdin to 'bash' in ruby-container from pod mypod
  # and sends stdout/stderr from 'bash' back to the client
  oc attach mypod -c ruby-container -i -t

  # Get output from the first pod of a replica set named nginx
  oc attach rs/nginx

Check to see if I can create pods in any namespace

  # Check to see if I can create pods in any namespace
  oc auth can-i create pods --all-namespaces

  # Check to see if I can list deployments in my current namespace
  oc auth can-i list deployments.apps

  # Check to see if service account "foo" of namespace "dev" can list pods
  # in the namespace "prod".
  # You must be allowed to use impersonation for the global option "--as".
  oc auth can-i list pods --as=system:serviceaccount:dev:foo -n prod

  # Check to see if I can do everything in my current namespace ("*" means all)
  oc auth can-i '*' '*'

  # Check to see if I can get the job named "bar" in namespace "foo"
  oc auth can-i list jobs.batch/bar -n foo

  # Check to see if I can read pod logs
  oc auth can-i get pods --subresource=log

  # Check to see if I can access the URL /logs/
  oc auth can-i get /logs/

  # List all allowed actions in namespace "foo"
  oc auth can-i --list --namespace=foo

Reconcile RBAC resources from a file

  # Reconcile RBAC resources from a file
  oc auth reconcile -f my-rbac-rules.yaml

Get your subject attributes.

  # Get your subject attributes.
  oc auth whoami

  # Get your subject attributes in JSON format.
  oc auth whoami -o json

Auto scale a deployment "foo", with the number of pods between 2 and 10, no target CPU utilization specified so a default autoscaling policy will be used

  # Auto scale a deployment "foo", with the number of pods between 2 and 10, no target CPU utilization specified so a default autoscaling policy will be used
  oc autoscale deployment foo --min=2 --max=10

  # Auto scale a replication controller "foo", with the number of pods between 1 and 5, target CPU utilization at 80%
  oc autoscale rc foo --max=5 --cpu-percent=80

Cancel the build with the given name

  # Cancel the build with the given name
  oc cancel-build ruby-build-2

  # Cancel the named build and print the build logs
  oc cancel-build ruby-build-2 --dump-logs

  # Cancel the named build and create a new one with the same parameters
  oc cancel-build ruby-build-2 --restart

  # Cancel multiple builds
  oc cancel-build ruby-build-1 ruby-build-2 ruby-build-3

  # Cancel all builds created from the 'ruby-build' build config that are in the 'new' state
  oc cancel-build bc/ruby-build --state=new

Print the address of the control plane and cluster services

  # Print the address of the control plane and cluster services
  oc cluster-info

Dump current cluster state to stdout

  # Dump current cluster state to stdout
  oc cluster-info dump

  # Dump current cluster state to /path/to/cluster-state
  oc cluster-info dump --output-directory=/path/to/cluster-state

  # Dump all namespaces to stdout
  oc cluster-info dump --all-namespaces

  # Dump a set of namespaces to /path/to/cluster-state
  oc cluster-info dump --namespaces default,kube-system --output-directory=/path/to/cluster-state

Installing bash completion on macOS using homebrew

  # Installing bash completion on macOS using homebrew
  ## If running Bash 3.2 included with macOS
  brew install bash-completion
  ## or, if running Bash 4.1+
  brew install bash-completion@2
  ## If oc is installed via homebrew, this should start working immediately
  ## If you've installed via other means, you may need add the completion to your completion directory
  oc completion bash > $(brew --prefix)/etc/bash_completion.d/oc


  # Installing bash completion on Linux
  ## If bash-completion is not installed on Linux, install the 'bash-completion' package
  ## via your distribution's package manager.
  ## Load the oc completion code for bash into the current shell
  source <(oc completion bash)
  ## Write bash completion code to a file and source it from .bash_profile
  oc completion bash > ~/.kube/completion.bash.inc
  printf "
  # oc shell completion
  source '$HOME/.kube/completion.bash.inc'
  " >> $HOME/.bash_profile
  source $HOME/.bash_profile

  # Load the oc completion code for zsh[1] into the current shell
  source <(oc completion zsh)
  # Set the oc completion code for zsh[1] to autoload on startup
  oc completion zsh > "${fpath[1]}/_oc"


  # Load the oc completion code for fish[2] into the current shell
  oc completion fish | source
  # To load completions for each session, execute once:
  oc completion fish > ~/.config/fish/completions/oc.fish

  # Load the oc completion code for powershell into the current shell
  oc completion powershell | Out-String | Invoke-Expression
  # Set oc completion code for powershell to run on startup
  ## Save completion code to a script and execute in the profile
  oc completion powershell > $HOME\.kube\completion.ps1
  Add-Content $PROFILE "$HOME\.kube\completion.ps1"
  ## Execute completion code in the profile
  Add-Content $PROFILE "if (Get-Command oc -ErrorAction SilentlyContinue) {
  oc completion powershell | Out-String | Invoke-Expression
  }"
  ## Add completion code directly to the $PROFILE script
  oc completion powershell >> $PROFILE

Display the current-context

  # Display the current-context
  oc config current-context

Delete the minikube cluster

  # Delete the minikube cluster
  oc config delete-cluster minikube

Delete the context for the minikube cluster

  # Delete the context for the minikube cluster
  oc config delete-context minikube

Delete the minikube user

  # Delete the minikube user
  oc config delete-user minikube

List the clusters that oc knows about

  # List the clusters that oc knows about
  oc config get-clusters

List all the contexts in your kubeconfig file

  # List all the contexts in your kubeconfig file
  oc config get-contexts

  # Describe one context in your kubeconfig file
  oc config get-contexts my-context

List the users that oc knows about

  # List the users that oc knows about
  oc config get-users

Generate a new admin kubeconfig

  # Generate a new admin kubeconfig
  oc config new-admin-kubeconfig

Generate a new kubelet bootstrap kubeconfig

  # Generate a new kubelet bootstrap kubeconfig
  oc config new-kubelet-bootstrap-kubeconfig

Refresh the CA bundle for the current context's cluster

  # Refresh the CA bundle for the current context's cluster
  oc config refresh-ca-bundle

  # Refresh the CA bundle for the cluster named e2e in your kubeconfig
  oc config refresh-ca-bundle e2e

  # Print the CA bundle from the current OpenShift cluster's apiserver.
  oc config refresh-ca-bundle --dry-run

Rename the context 'old-name' to 'new-name' in your kubeconfig file

  # Rename the context 'old-name' to 'new-name' in your kubeconfig file
  oc config rename-context old-name new-name

Set the server field on the my-cluster cluster to https://1.2.3.4

  # Set the server field on the my-cluster cluster to https://1.2.3.4
  oc config set clusters.my-cluster.server https://1.2.3.4

  # Set the certificate-authority-data field on the my-cluster cluster
  oc config set clusters.my-cluster.certificate-authority-data $(echo "cert_data_here" | base64 -i -)

  # Set the cluster field in the my-context context to my-cluster
  oc config set contexts.my-context.cluster my-cluster

  # Set the client-key-data field in the cluster-admin user using --set-raw-bytes option
  oc config set users.cluster-admin.client-key-data cert_data_here --set-raw-bytes=true

Set only the server field on the e2e cluster entry without touching other values

  # Set only the server field on the e2e cluster entry without touching other values
  oc config set-cluster e2e --server=https://1.2.3.4

  # Embed certificate authority data for the e2e cluster entry
  oc config set-cluster e2e --embed-certs --certificate-authority=~/.kube/e2e/kubernetes.ca.crt

  # Disable cert checking for the e2e cluster entry
  oc config set-cluster e2e --insecure-skip-tls-verify=true

  # Set the custom TLS server name to use for validation for the e2e cluster entry
  oc config set-cluster e2e --tls-server-name=my-cluster-name

  # Set the proxy URL for the e2e cluster entry
  oc config set-cluster e2e --proxy-url=https://1.2.3.4

Set the user field on the gce context entry without touching other values

  # Set the user field on the gce context entry without touching other values
  oc config set-context gce --user=cluster-admin

Set only the "client-key" field on the "cluster-admin"

  # Set only the "client-key" field on the "cluster-admin"
  # entry, without touching other values
  oc config set-credentials cluster-admin --client-key=~/.kube/admin.key

  # Set basic auth for the "cluster-admin" entry
  oc config set-credentials cluster-admin --username=admin --password=uXFGweU9l35qcif

  # Embed client certificate data in the "cluster-admin" entry
  oc config set-credentials cluster-admin --client-certificate=~/.kube/admin.crt --embed-certs=true

  # Enable the Google Compute Platform auth provider for the "cluster-admin" entry
  oc config set-credentials cluster-admin --auth-provider=gcp

  # Enable the OpenID Connect auth provider for the "cluster-admin" entry with additional arguments
  oc config set-credentials cluster-admin --auth-provider=oidc --auth-provider-arg=client-id=foo --auth-provider-arg=client-secret=bar

  # Remove the "client-secret" config value for the OpenID Connect auth provider for the "cluster-admin" entry
  oc config set-credentials cluster-admin --auth-provider=oidc --auth-provider-arg=client-secret-

  # Enable new exec auth plugin for the "cluster-admin" entry
  oc config set-credentials cluster-admin --exec-command=/path/to/the/executable --exec-api-version=client.authentication.k8s.io/v1beta1

  # Define new exec auth plugin arguments for the "cluster-admin" entry
  oc config set-credentials cluster-admin --exec-arg=arg1 --exec-arg=arg2

  # Create or update exec auth plugin environment variables for the "cluster-admin" entry
  oc config set-credentials cluster-admin --exec-env=key1=val1 --exec-env=key2=val2

  # Remove exec auth plugin environment variables for the "cluster-admin" entry
  oc config set-credentials cluster-admin --exec-env=var-to-remove-

Unset the current-context

  # Unset the current-context
  oc config unset current-context

  # Unset namespace in foo context
  oc config unset contexts.foo.namespace

Use the context for the minikube cluster

  # Use the context for the minikube cluster
  oc config use-context minikube

Show merged kubeconfig settings

  # Show merged kubeconfig settings
  oc config view

  # Show merged kubeconfig settings, raw certificate data, and exposed secrets
  oc config view --raw

  # Get the password for the e2e user
  oc config view -o jsonpath='{.users[?(@.name == "e2e")].user.password}'

!!!Important Note!!!

  # !!!Important Note!!!
  # Requires that the 'tar' binary is present in your container
  # image.  If 'tar' is not present, 'oc cp' will fail.
  #
  # For advanced use cases, such as symlinks, wildcard expansion or
  # file mode preservation, consider using 'oc exec'.

  # Copy /tmp/foo local file to /tmp/bar in a remote pod in namespace <some-namespace>
  tar cf - /tmp/foo | oc exec -i -n <some-namespace> <some-pod> -- tar xf - -C /tmp/bar

  # Copy /tmp/foo from a remote pod to /tmp/bar locally
  oc exec -n <some-namespace> <some-pod> -- tar cf - /tmp/foo | tar xf - -C /tmp/bar

  # Copy /tmp/foo_dir local directory to /tmp/bar_dir in a remote pod in the default namespace
  oc cp /tmp/foo_dir <some-pod>:/tmp/bar_dir

  # Copy /tmp/foo local file to /tmp/bar in a remote pod in a specific container
  oc cp /tmp/foo <some-pod>:/tmp/bar -c <specific-container>

  # Copy /tmp/foo local file to /tmp/bar in a remote pod in namespace <some-namespace>
  oc cp /tmp/foo <some-namespace>/<some-pod>:/tmp/bar

  # Copy /tmp/foo from a remote pod to /tmp/bar locally
  oc cp <some-namespace>/<some-pod>:/tmp/foo /tmp/bar

Create a pod using the data in pod.json

  # Create a pod using the data in pod.json
  oc create -f ./pod.json

  # Create a pod based on the JSON passed into stdin
  cat pod.json | oc create -f -

  # Edit the data in registry.yaml in JSON then create the resource using the edited data
  oc create -f registry.yaml --edit -o json

Create a new build

  # Create a new build
  oc create build myapp

Create a cluster resource quota limited to 10 pods

  # Create a cluster resource quota limited to 10 pods
  oc create clusterresourcequota limit-bob --project-annotation-selector=openshift.io/requester=user-bob --hard=pods=10

Create a cluster role named "pod-reader" that allows user to perform "get", "watch" and "list" on pods

  # Create a cluster role named "pod-reader" that allows user to perform "get", "watch" and "list" on pods
  oc create clusterrole pod-reader --verb=get,list,watch --resource=pods

  # Create a cluster role named "pod-reader" with ResourceName specified
  oc create clusterrole pod-reader --verb=get --resource=pods --resource-name=readablepod --resource-name=anotherpod

  # Create a cluster role named "foo" with API Group specified
  oc create clusterrole foo --verb=get,list,watch --resource=rs.apps

  # Create a cluster role named "foo" with SubResource specified
  oc create clusterrole foo --verb=get,list,watch --resource=pods,pods/status

  # Create a cluster role name "foo" with NonResourceURL specified
  oc create clusterrole "foo" --verb=get --non-resource-url=/logs/*

  # Create a cluster role name "monitoring" with AggregationRule specified
  oc create clusterrole monitoring --aggregation-rule="rbac.example.com/aggregate-to-monitoring=true"

Create a cluster role binding for user1, user2, and group1 using the cluster-admin cluster role

  # Create a cluster role binding for user1, user2, and group1 using the cluster-admin cluster role
  oc create clusterrolebinding cluster-admin --clusterrole=cluster-admin --user=user1 --user=user2 --group=group1

Create a new config map named my-config based on folder bar

  # Create a new config map named my-config based on folder bar
  oc create configmap my-config --from-file=path/to/bar

  # Create a new config map named my-config with specified keys instead of file basenames on disk
  oc create configmap my-config --from-file=key1=/path/to/bar/file1.txt --from-file=key2=/path/to/bar/file2.txt

  # Create a new config map named my-config with key1=config1 and key2=config2
  oc create configmap my-config --from-literal=key1=config1 --from-literal=key2=config2

  # Create a new config map named my-config from the key=value pairs in the file
  oc create configmap my-config --from-file=path/to/bar

  # Create a new config map named my-config from an env file
  oc create configmap my-config --from-env-file=path/to/foo.env --from-env-file=path/to/bar.env

Create a cron job

  # Create a cron job
  oc create cronjob my-job --image=busybox --schedule="*/1 * * * *"

  # Create a cron job with a command
  oc create cronjob my-job --image=busybox --schedule="*/1 * * * *" -- date

Create a deployment named my-dep that runs the busybox image

  # Create a deployment named my-dep that runs the busybox image
  oc create deployment my-dep --image=busybox

  # Create a deployment with a command
  oc create deployment my-dep --image=busybox -- date

  # Create a deployment named my-dep that runs the nginx image with 3 replicas
  oc create deployment my-dep --image=nginx --replicas=3

  # Create a deployment named my-dep that runs the busybox image and expose port 5701
  oc create deployment my-dep --image=busybox --port=5701

Create an nginx deployment config named my-nginx

  # Create an nginx deployment config named my-nginx
  oc create deploymentconfig my-nginx --image=nginx

Create an identity with identity provider "acme_ldap" and the identity provider username "adamjones"

  # Create an identity with identity provider "acme_ldap" and the identity provider username "adamjones"
  oc create identity acme_ldap:adamjones

Create a new image stream

  # Create a new image stream
  oc create imagestream mysql

Create a new image stream tag based on an image in a remote registry

  # Create a new image stream tag based on an image in a remote registry
  oc create imagestreamtag mysql:latest --from-image=myregistry.local/mysql/mysql:5.0

Create a single ingress called 'simple' that directs requests to foo.com/bar to svc

  # Create a single ingress called 'simple' that directs requests to foo.com/bar to svc
  # svc1:8080 with a TLS secret "my-cert"
  oc create ingress simple --rule="foo.com/bar=svc1:8080,tls=my-cert"

  # Create a catch all ingress of "/path" pointing to service svc:port and Ingress Class as "otheringress"
  oc create ingress catch-all --class=otheringress --rule="/path=svc:port"

  # Create an ingress with two annotations: ingress.annotation1 and ingress.annotations2
  oc create ingress annotated --class=default --rule="foo.com/bar=svc:port" \
  --annotation ingress.annotation1=foo \
  --annotation ingress.annotation2=bla

  # Create an ingress with the same host and multiple paths
  oc create ingress multipath --class=default \
  --rule="foo.com/=svc:port" \
  --rule="foo.com/admin/=svcadmin:portadmin"

  # Create an ingress with multiple hosts and the pathType as Prefix
  oc create ingress ingress1 --class=default \
  --rule="foo.com/path*=svc:8080" \
  --rule="bar.com/admin*=svc2:http"

  # Create an ingress with TLS enabled using the default ingress certificate and different path types
  oc create ingress ingtls --class=default \
  --rule="foo.com/=svc:https,tls" \
  --rule="foo.com/path/subpath*=othersvc:8080"

  # Create an ingress with TLS enabled using a specific secret and pathType as Prefix
  oc create ingress ingsecret --class=default \
  --rule="foo.com/*=svc:8080,tls=secret1"

  # Create an ingress with a default backend
  oc create ingress ingdefault --class=default \
  --default-backend=defaultsvc:http \
  --rule="foo.com/*=svc:8080,tls=secret1"

Create a job

  # Create a job
  oc create job my-job --image=busybox

  # Create a job with a command
  oc create job my-job --image=busybox -- date

  # Create a job from a cron job named "a-cronjob"
  oc create job test-job --from=cronjob/a-cronjob

Create a new namespace named my-namespace

  # Create a new namespace named my-namespace
  oc create namespace my-namespace

Create a pod disruption budget named my-pdb that will select all pods with the app=rails label

  # Create a pod disruption budget named my-pdb that will select all pods with the app=rails label
  # and require at least one of them being available at any point in time
  oc create poddisruptionbudget my-pdb --selector=app=rails --min-available=1

  # Create a pod disruption budget named my-pdb that will select all pods with the app=nginx label
  # and require at least half of the pods selected to be available at any point in time
  oc create pdb my-pdb --selector=app=nginx --min-available=50%

Create a priority class named high-priority

  # Create a priority class named high-priority
  oc create priorityclass high-priority --value=1000 --description="high priority"

  # Create a priority class named default-priority that is considered as the global default priority
  oc create priorityclass default-priority --value=1000 --global-default=true --description="default priority"

  # Create a priority class named high-priority that cannot preempt pods with lower priority
  oc create priorityclass high-priority --value=1000 --description="high priority" --preemption-policy="Never"

Create a new resource quota named my-quota

  # Create a new resource quota named my-quota
  oc create quota my-quota --hard=cpu=1,memory=1G,pods=2,services=3,replicationcontrollers=2,resourcequotas=1,secrets=5,persistentvolumeclaims=10

  # Create a new resource quota named best-effort
  oc create quota best-effort --hard=pods=100 --scopes=BestEffort

Create a role named "pod-reader" that allows user to perform "get", "watch" and "list" on pods

  # Create a role named "pod-reader" that allows user to perform "get", "watch" and "list" on pods
  oc create role pod-reader --verb=get --verb=list --verb=watch --resource=pods

  # Create a role named "pod-reader" with ResourceName specified
  oc create role pod-reader --verb=get --resource=pods --resource-name=readablepod --resource-name=anotherpod

  # Create a role named "foo" with API Group specified
  oc create role foo --verb=get,list,watch --resource=rs.apps

  # Create a role named "foo" with SubResource specified
  oc create role foo --verb=get,list,watch --resource=pods,pods/status

Create a role binding for user1, user2, and group1 using the admin cluster role

  # Create a role binding for user1, user2, and group1 using the admin cluster role
  oc create rolebinding admin --clusterrole=admin --user=user1 --user=user2 --group=group1

  # Create a role binding for serviceaccount monitoring:sa-dev using the admin role
  oc create rolebinding admin-binding --role=admin --serviceaccount=monitoring:sa-dev

Create an edge route named "my-route" that exposes the frontend service

  # Create an edge route named "my-route" that exposes the frontend service
  oc create route edge my-route --service=frontend

  # Create an edge route that exposes the frontend service and specify a path
  # If the route name is omitted, the service name will be used
  oc create route edge --service=frontend --path /assets

Create a passthrough route named "my-route" that exposes the frontend service

  # Create a passthrough route named "my-route" that exposes the frontend service
  oc create route passthrough my-route --service=frontend

  # Create a passthrough route that exposes the frontend service and specify
  # a host name. If the route name is omitted, the service name will be used
  oc create route passthrough --service=frontend --hostname=www.example.com

Create a route named "my-route" that exposes the frontend service

  # Create a route named "my-route" that exposes the frontend service
  oc create route reencrypt my-route --service=frontend --dest-ca-cert cert.cert

  # Create a reencrypt route that exposes the frontend service, letting the
  # route name default to the service name and the destination CA certificate
  # default to the service CA
  oc create route reencrypt --service=frontend

If you do not already have a .dockercfg file, create a dockercfg secret directly

  # If you do not already have a .dockercfg file, create a dockercfg secret directly
  oc create secret docker-registry my-secret --docker-server=DOCKER_REGISTRY_SERVER --docker-username=DOCKER_USER --docker-password=DOCKER_PASSWORD --docker-email=DOCKER_EMAIL

  # Create a new secret named my-secret from ~/.docker/config.json
  oc create secret docker-registry my-secret --from-file=.dockerconfigjson=path/to/.docker/config.json

Create a new secret named my-secret with keys for each file in folder bar

  # Create a new secret named my-secret with keys for each file in folder bar
  oc create secret generic my-secret --from-file=path/to/bar

  # Create a new secret named my-secret with specified keys instead of names on disk
  oc create secret generic my-secret --from-file=ssh-privatekey=path/to/id_rsa --from-file=ssh-publickey=path/to/id_rsa.pub

  # Create a new secret named my-secret with key1=supersecret and key2=topsecret
  oc create secret generic my-secret --from-literal=key1=supersecret --from-literal=key2=topsecret

  # Create a new secret named my-secret using a combination of a file and a literal
  oc create secret generic my-secret --from-file=ssh-privatekey=path/to/id_rsa --from-literal=passphrase=topsecret

  # Create a new secret named my-secret from env files
  oc create secret generic my-secret --from-env-file=path/to/foo.env --from-env-file=path/to/bar.env

Create a new TLS secret named tls-secret with the given key pair

  # Create a new TLS secret named tls-secret with the given key pair
  oc create secret tls tls-secret --cert=path/to/tls.cert --key=path/to/tls.key

Create a new ClusterIP service named my-cs

  # Create a new ClusterIP service named my-cs
  oc create service clusterip my-cs --tcp=5678:8080

  # Create a new ClusterIP service named my-cs (in headless mode)
  oc create service clusterip my-cs --clusterip="None"

Create a new ExternalName service named my-ns

  # Create a new ExternalName service named my-ns
  oc create service externalname my-ns --external-name bar.com

Create a new LoadBalancer service named my-lbs

  # Create a new LoadBalancer service named my-lbs
  oc create service loadbalancer my-lbs --tcp=5678:8080

Create a new NodePort service named my-ns

  # Create a new NodePort service named my-ns
  oc create service nodeport my-ns --tcp=5678:8080

Create a new service account named my-service-account

  # Create a new service account named my-service-account
  oc create serviceaccount my-service-account

Request a token to authenticate to the kube-apiserver as the service account "myapp" in the current namespace

  # Request a token to authenticate to the kube-apiserver as the service account "myapp" in the current namespace
  oc create token myapp

  # Request a token for a service account in a custom namespace
  oc create token myapp --namespace myns

  # Request a token with a custom expiration
  oc create token myapp --duration 10m

  # Request a token with a custom audience
  oc create token myapp --audience https://example.com

  # Request a token bound to an instance of a Secret object
  oc create token myapp --bound-object-kind Secret --bound-object-name mysecret

  # Request a token bound to an instance of a Secret object with a specific UID
  oc create token myapp --bound-object-kind Secret --bound-object-name mysecret --bound-object-uid 0d4691ed-659b-4935-a832-355f77ee47cc

Create a user with the username "ajones" and the display name "Adam Jones"

  # Create a user with the username "ajones" and the display name "Adam Jones"
  oc create user ajones --full-name="Adam Jones"

Map the identity "acme_ldap:adamjones" to the user "ajones"

  # Map the identity "acme_ldap:adamjones" to the user "ajones"
  oc create useridentitymapping acme_ldap:adamjones ajones

Start a shell session into a pod using the OpenShift tools image

  # Start a shell session into a pod using the OpenShift tools image
  oc debug

  # Debug a currently running deployment by creating a new pod
  oc debug deploy/test

  # Debug a node as an administrator
  oc debug node/master-1

  # Debug a Windows Node
  # Note: the chosen image must match the Windows Server version (2019, 2022) of the Node
  oc debug node/win-worker-1 --image=mcr.microsoft.com/powershell:lts-nanoserver-ltsc2022

  # Launch a shell in a pod using the provided image stream tag
  oc debug istag/mysql:latest -n openshift

  # Test running a job as a non-root user
  oc debug job/test --as-user=1000000

  # Debug a specific failing container by running the env command in the 'second' container
  oc debug daemonset/test -c second -- /bin/env

  # See the pod that would be created to debug
  oc debug mypod-9xbc -o yaml

  # Debug a resource but launch the debug pod in another namespace
  # Note: Not all resources can be debugged using --to-namespace without modification. For example,
  # volumes and service accounts are namespace-dependent. Add '-o yaml' to output the debug pod definition
  # to disk.  If necessary, edit the definition then run 'oc debug -f -' or run without --to-namespace
  oc debug mypod-9xbc --to-namespace testns

Delete a pod using the type and name specified in pod.json

  # Delete a pod using the type and name specified in pod.json
  oc delete -f ./pod.json

  # Delete resources from a directory containing kustomization.yaml - e.g. dir/kustomization.yaml
  oc delete -k dir

  # Delete resources from all files that end with '.json'
  oc delete -f '*.json'

  # Delete a pod based on the type and name in the JSON passed into stdin
  cat pod.json | oc delete -f -

  # Delete pods and services with same names "baz" and "foo"
  oc delete pod,service baz foo

  # Delete pods and services with label name=myLabel
  oc delete pods,services -l name=myLabel

  # Delete a pod with minimal delay
  oc delete pod foo --now

  # Force delete a pod on a dead node
  oc delete pod foo --force

  # Delete all pods
  oc delete pods --all

Describe a node

  # Describe a node
  oc describe nodes kubernetes-node-emt8.c.myproject.internal

  # Describe a pod
  oc describe pods/nginx

  # Describe a pod identified by type and name in "pod.json"
  oc describe -f pod.json

  # Describe all pods
  oc describe pods

  # Describe pods by label name=myLabel
  oc describe pods -l name=myLabel

  # Describe all pods managed by the 'frontend' replication controller
  # (rc-created pods get the name of the rc as a prefix in the pod name)
  oc describe pods frontend

Diff resources included in pod.json

  # Diff resources included in pod.json
  oc diff -f pod.json

  # Diff file read from stdin
  cat service.yaml | oc diff -f -

Edit the service named 'registry'

  # Edit the service named 'registry'
  oc edit svc/registry

  # Use an alternative editor
  KUBE_EDITOR="nano" oc edit svc/registry

  # Edit the job 'myjob' in JSON using the v1 API format
  oc edit job.v1.batch/myjob -o json

  # Edit the deployment 'mydeployment' in YAML and save the modified config in its annotation
  oc edit deployment/mydeployment -o yaml --save-config

  # Edit the 'status' subresource for the 'mydeployment' deployment
  oc edit deployment mydeployment --subresource='status'

List recent events in the default namespace

  # List recent events in the default namespace
  oc events

  # List recent events in all namespaces
  oc events --all-namespaces

  # List recent events for the specified pod, then wait for more events and list them as they arrive
  oc events --for pod/web-pod-13je7 --watch

  # List recent events in YAML format
  oc events -oyaml

  # List recent only events of type 'Warning' or 'Normal'
  oc events --types=Warning,Normal

Get output from running the 'date' command from pod mypod, using the first container by default

  # Get output from running the 'date' command from pod mypod, using the first container by default
  oc exec mypod -- date

  # Get output from running the 'date' command in ruby-container from pod mypod
  oc exec mypod -c ruby-container -- date

  # Switch to raw terminal mode; sends stdin to 'bash' in ruby-container from pod mypod
  # and sends stdout/stderr from 'bash' back to the client
  oc exec mypod -c ruby-container -i -t -- bash -il

  # List contents of /usr from the first container of pod mypod and sort by modification time
  # If the command you want to execute in the pod has any flags in common (e.g. -i),
  # you must use two dashes (--) to separate your command's flags/arguments
  # Also note, do not surround your command and its flags/arguments with quotes
  # unless that is how you would execute it normally (i.e., do ls -t /usr, not "ls -t /usr")
  oc exec mypod -i -t -- ls -t /usr

  # Get output from running 'date' command from the first pod of the deployment mydeployment, using the first container by default
  oc exec deploy/mydeployment -- date

  # Get output from running 'date' command from the first pod of the service myservice, using the first container by default
  oc exec svc/myservice -- date

Get the documentation of the resource and its fields

  # Get the documentation of the resource and its fields
  oc explain pods

  # Get all the fields in the resource
  oc explain pods --recursive

  # Get the explanation for deployment in supported api versions
  oc explain deployments --api-version=apps/v1

  # Get the documentation of a specific field of a resource
  oc explain pods.spec.containers

  # Get the documentation of resources in different format
  oc explain deployment --output=plaintext-openapiv2

Create a route based on service nginx. The new route will reuse nginx's labels

  # Create a route based on service nginx. The new route will reuse nginx's labels
  oc expose service nginx

  # Create a route and specify your own label and route name
  oc expose service nginx -l name=myroute --name=fromdowntown

  # Create a route and specify a host name
  oc expose service nginx --hostname=www.example.com

  # Create a route with a wildcard
  oc expose service nginx --hostname=x.example.com --wildcard-policy=Subdomain
  # This would be equivalent to *.example.com. NOTE: only hosts are matched by the wildcard; subdomains would not be included

  # Expose a deployment configuration as a service and use the specified port
  oc expose dc ruby-hello-world --port=8080

  # Expose a service as a route in the specified path
  oc expose service nginx --path=/nginx

Extract the secret "test" to the current directory

  # Extract the secret "test" to the current directory
  oc extract secret/test

  # Extract the config map "nginx" to the /tmp directory
  oc extract configmap/nginx --to=/tmp

  # Extract the config map "nginx" to STDOUT
  oc extract configmap/nginx --to=-

  # Extract only the key "nginx.conf" from config map "nginx" to the /tmp directory
  oc extract configmap/nginx --to=/tmp --keys=nginx.conf

List all pods in ps output format

  # List all pods in ps output format
  oc get pods

  # List all pods in ps output format with more information (such as node name)
  oc get pods -o wide

  # List a single replication controller with specified NAME in ps output format
  oc get replicationcontroller web

  # List deployments in JSON output format, in the "v1" version of the "apps" API group
  oc get deployments.v1.apps -o json

  # List a single pod in JSON output format
  oc get -o json pod web-pod-13je7

  # List a pod identified by type and name specified in "pod.yaml" in JSON output format
  oc get -f pod.yaml -o json

  # List resources from a directory with kustomization.yaml - e.g. dir/kustomization.yaml
  oc get -k dir/

  # Return only the phase value of the specified pod
  oc get -o template pod/web-pod-13je7 --template={{.status.phase}}

  # List resource information in custom columns
  oc get pod test-pod -o custom-columns=CONTAINER:.spec.containers[0].name,IMAGE:.spec.containers[0].image

  # List all replication controllers and services together in ps output format
  oc get rc,services

  # List one or more resources by their type and names
  oc get rc/web service/frontend pods/web-pod-13je7

  # List the 'status' subresource for a single pod
  oc get pod web-pod-13je7 --subresource status

Starts an auth code flow to the issuer url with the client id and the given extra scopes

  # Starts an auth code flow to the issuer url with the client id and the given extra scopes
  oc get-token --client-id=client-id --issuer-url=test.issuer.url --extra-scopes=email,profile

  # Starts an authe code flow to the issuer url with a different callback address.
  oc get-token --client-id=client-id --issuer-url=test.issuer.url --callback-address=127.0.0.1:8343

Idle the scalable controllers associated with the services listed in to-idle.txt

  # Idle the scalable controllers associated with the services listed in to-idle.txt
  $ oc idle --resource-names-file to-idle.txt

Remove the entrypoint on the mysql:latest image

  # Remove the entrypoint on the mysql:latest image
  oc image append --from mysql:latest --to myregistry.com/myimage:latest --image '{"Entrypoint":null}'

  # Add a new layer to the image
  oc image append --from mysql:latest --to myregistry.com/myimage:latest layer.tar.gz

  # Add a new layer to the image and store the result on disk
  # This results in $(pwd)/v2/mysql/blobs,manifests
  oc image append --from mysql:latest --to file://mysql:local layer.tar.gz

  # Add a new layer to the image and store the result on disk in a designated directory
  # This will result in $(pwd)/mysql-local/v2/mysql/blobs,manifests
  oc image append --from mysql:latest --to file://mysql:local --dir mysql-local layer.tar.gz

  # Add a new layer to an image that is stored on disk (~/mysql-local/v2/image exists)
  oc image append --from-dir ~/mysql-local --to myregistry.com/myimage:latest layer.tar.gz

  # Add a new layer to an image that was mirrored to the current directory on disk ($(pwd)/v2/image exists)
  oc image append --from-dir v2 --to myregistry.com/myimage:latest layer.tar.gz

  # Add a new layer to a multi-architecture image for an os/arch that is different from the system's os/arch
  # Note: The first image in the manifest list that matches the filter will be returned when --keep-manifest-list is not specified
  oc image append --from docker.io/library/busybox:latest --filter-by-os=linux/s390x --to myregistry.com/myimage:latest layer.tar.gz

  # Add a new layer to a multi-architecture image for all the os/arch manifests when keep-manifest-list is specified
  oc image append --from docker.io/library/busybox:latest --keep-manifest-list --to myregistry.com/myimage:latest layer.tar.gz

  # Add a new layer to a multi-architecture image for all the os/arch manifests that is specified by the filter, while preserving the manifestlist
  oc image append --from docker.io/library/busybox:latest --filter-by-os=linux/s390x --keep-manifest-list --to myregistry.com/myimage:latest layer.tar.gz

Extract the busybox image into the current directory

  # Extract the busybox image into the current directory
  oc image extract docker.io/library/busybox:latest

  # Extract the busybox image into a designated directory (must exist)
  oc image extract docker.io/library/busybox:latest --path /:/tmp/busybox

  # Extract the busybox image into the current directory for linux/s390x platform
  # Note: Wildcard filter is not supported with extract; pass a single os/arch to extract
  oc image extract docker.io/library/busybox:latest --filter-by-os=linux/s390x

  # Extract a single file from the image into the current directory
  oc image extract docker.io/library/centos:7 --path /bin/bash:.

  # Extract all .repo files from the image's /etc/yum.repos.d/ folder into the current directory
  oc image extract docker.io/library/centos:7 --path /etc/yum.repos.d/*.repo:.

  # Extract all .repo files from the image's /etc/yum.repos.d/ folder into a designated directory (must exist)
  # This results in /tmp/yum.repos.d/*.repo on local system
  oc image extract docker.io/library/centos:7 --path /etc/yum.repos.d/*.repo:/tmp/yum.repos.d

  # Extract an image stored on disk into the current directory ($(pwd)/v2/busybox/blobs,manifests exists)
  # --confirm is required because the current directory is not empty
  oc image extract file://busybox:local --confirm

  # Extract an image stored on disk in a directory other than $(pwd)/v2 into the current directory
  # --confirm is required because the current directory is not empty ($(pwd)/busybox-mirror-dir/v2/busybox exists)
  oc image extract file://busybox:local --dir busybox-mirror-dir --confirm

  # Extract an image stored on disk in a directory other than $(pwd)/v2 into a designated directory (must exist)
  oc image extract file://busybox:local --dir busybox-mirror-dir --path /:/tmp/busybox

  # Extract the last layer in the image
  oc image extract docker.io/library/centos:7[-1]

  # Extract the first three layers of the image
  oc image extract docker.io/library/centos:7[:3]

  # Extract the last three layers of the image
  oc image extract docker.io/library/centos:7[-3:]

Show information about an image

  # Show information about an image
  oc image info quay.io/openshift/cli:latest

  # Show information about images matching a wildcard
  oc image info quay.io/openshift/cli:4.*

  # Show information about a file mirrored to disk under DIR
  oc image info --dir=DIR file://library/busybox:latest

  # Select which image from a multi-OS image to show
  oc image info library/busybox:latest --filter-by-os=linux/arm64

Copy image to another tag

  # Copy image to another tag
  oc image mirror myregistry.com/myimage:latest myregistry.com/myimage:stable

  # Copy image to another registry
  oc image mirror myregistry.com/myimage:latest docker.io/myrepository/myimage:stable

  # Copy all tags starting with mysql to the destination repository
  oc image mirror myregistry.com/myimage:mysql* docker.io/myrepository/myimage

  # Copy image to disk, creating a directory structure that can be served as a registry
  oc image mirror myregistry.com/myimage:latest file://myrepository/myimage:latest

  # Copy image to S3 (pull from <bucket>.s3.amazonaws.com/image:latest)
  oc image mirror myregistry.com/myimage:latest s3://s3.amazonaws.com/<region>/<bucket>/image:latest

  # Copy image to S3 without setting a tag (pull via @<digest>)
  oc image mirror myregistry.com/myimage:latest s3://s3.amazonaws.com/<region>/<bucket>/image

  # Copy image to multiple locations
  oc image mirror myregistry.com/myimage:latest docker.io/myrepository/myimage:stable \
  docker.io/myrepository/myimage:dev

  # Copy multiple images
  oc image mirror myregistry.com/myimage:latest=myregistry.com/other:test \
  myregistry.com/myimage:new=myregistry.com/other:target

  # Copy manifest list of a multi-architecture image, even if only a single image is found
  oc image mirror myregistry.com/myimage:latest=myregistry.com/other:test \
  --keep-manifest-list=true

  # Copy specific os/arch manifest of a multi-architecture image
  # Run 'oc image info myregistry.com/myimage:latest' to see available os/arch for multi-arch images
  # Note that with multi-arch images, this results in a new manifest list digest that includes only
  # the filtered manifests
  oc image mirror myregistry.com/myimage:latest=myregistry.com/other:test \
  --filter-by-os=os/arch

  # Copy all os/arch manifests of a multi-architecture image
  # Run 'oc image info myregistry.com/myimage:latest' to see list of os/arch manifests that will be mirrored
  oc image mirror myregistry.com/myimage:latest=myregistry.com/other:test \
  --keep-manifest-list=true

  # Note the above command is equivalent to
  oc image mirror myregistry.com/myimage:latest=myregistry.com/other:test \
  --filter-by-os=.*

  # Copy specific os/arch manifest of a multi-architecture image
  # Run 'oc image info myregistry.com/myimage:latest' to see available os/arch for multi-arch images
  # Note that the target registry may reject a manifest list if the platform specific images do not all
  # exist. You must use a registry with sparse registry support enabled.
  oc image mirror myregistry.com/myimage:latest=myregistry.com/other:test \
  --filter-by-os=linux/386 \
  --keep-manifest-list=true

Import tag latest into a new image stream

  # Import tag latest into a new image stream
  oc import-image mystream --from=registry.io/repo/image:latest --confirm

  # Update imported data for tag latest in an already existing image stream
  oc import-image mystream

  # Update imported data for tag stable in an already existing image stream
  oc import-image mystream:stable

  # Update imported data for all tags in an existing image stream
  oc import-image mystream --all

  # Update imported data for a tag that points to a manifest list to include the full manifest list
  oc import-image mystream --import-mode=PreserveOriginal

  # Import all tags into a new image stream
  oc import-image mystream --from=registry.io/repo/image --all --confirm

  # Import all tags into a new image stream using a custom timeout
  oc --request-timeout=5m import-image mystream --from=registry.io/repo/image --all --confirm

Build the current working directory

  # Build the current working directory
  oc kustomize

  # Build some shared configuration directory
  oc kustomize /home/config/production

  # Build from github
  oc kustomize https://github.com/kubernetes-sigs/kustomize.git/examples/helloWorld?ref=v1.0.6

Update pod 'foo' with the label 'unhealthy' and the value 'true'

  # Update pod 'foo' with the label 'unhealthy' and the value 'true'
  oc label pods foo unhealthy=true

  # Update pod 'foo' with the label 'status' and the value 'unhealthy', overwriting any existing value
  oc label --overwrite pods foo status=unhealthy

  # Update all pods in the namespace
  oc label pods --all status=unhealthy

  # Update a pod identified by the type and name in "pod.json"
  oc label -f pod.json status=unhealthy

  # Update pod 'foo' only if the resource is unchanged from version 1
  oc label pods foo status=unhealthy --resource-version=1

  # Update pod 'foo' by removing a label named 'bar' if it exists
  # Does not require the --overwrite flag
  oc label pods foo bar-

Log in interactively

  # Log in interactively
  oc login --username=myuser

  # Log in to the given server with the given certificate authority file
  oc login localhost:8443 --certificate-authority=/path/to/cert.crt

  # Log in to the given server with the given credentials (will not prompt interactively)
  oc login localhost:8443 --username=myuser --password=mypass

  # Log in to the given server through a browser
  oc login localhost:8443 --web --callback-port 8280

  # Log in to the external OIDC issuer through Auth Code + PKCE by starting a local server listening port 8080
  oc login localhost:8443 --exec-plugin=oc-oidc --client-id=client-id --extra-scopes=email,profile --callback-port=8080

Log out

  # Log out
  oc logout

Start streaming the logs of the most recent build of the openldap build config

  # Start streaming the logs of the most recent build of the openldap build config
  oc logs -f bc/openldap

  # Start streaming the logs of the latest deployment of the mysql deployment config
  oc logs -f dc/mysql

  # Get the logs of the first deployment for the mysql deployment config. Note that logs
  # from older deployments may not exist either because the deployment was successful
  # or due to deployment pruning or manual deletion of the deployment
  oc logs --version=1 dc/mysql

  # Return a snapshot of ruby-container logs from pod backend
  oc logs backend -c ruby-container

  # Start streaming of ruby-container logs from pod backend
  oc logs -f pod/backend -c ruby-container

List all local templates and image streams that can be used to create an app

  # List all local templates and image streams that can be used to create an app
  oc new-app --list

  # Create an application based on the source code in the current git repository (with a public remote) and a container image
  oc new-app . --image=registry/repo/langimage

  # Create an application myapp with Docker based build strategy expecting binary input
  oc new-app  --strategy=docker --binary --name myapp

  # Create a Ruby application based on the provided [image]~[source code] combination
  oc new-app centos/ruby-25-centos7~https://github.com/sclorg/ruby-ex.git

  # Use the public container registry MySQL image to create an app. Generated artifacts will be labeled with db=mysql
  oc new-app mysql MYSQL_USER=user MYSQL_PASSWORD=pass MYSQL_DATABASE=testdb -l db=mysql

  # Use a MySQL image in a private registry to create an app and override application artifacts' names
  oc new-app --image=myregistry.com/mycompany/mysql --name=private

  # Use an image with the full manifest list to create an app and override application artifacts' names
  oc new-app --image=myregistry.com/mycompany/image --name=private --import-mode=PreserveOriginal

  # Create an application from a remote repository using its beta4 branch
  oc new-app https://github.com/openshift/ruby-hello-world#beta4

  # Create an application based on a stored template, explicitly setting a parameter value
  oc new-app --template=ruby-helloworld-sample --param=MYSQL_USER=admin

  # Create an application from a remote repository and specify a context directory
  oc new-app https://github.com/youruser/yourgitrepo --context-dir=src/build

  # Create an application from a remote private repository and specify which existing secret to use
  oc new-app https://github.com/youruser/yourgitrepo --source-secret=yoursecret

  # Create an application based on a template file, explicitly setting a parameter value
  oc new-app --file=./example/myapp/template.json --param=MYSQL_USER=admin

  # Search all templates, image streams, and container images for the ones that match "ruby"
  oc new-app --search ruby

  # Search for "ruby", but only in stored templates (--template, --image-stream and --image
  # can be used to filter search results)
  oc new-app --search --template=ruby

  # Search for "ruby" in stored templates and print the output as YAML
  oc new-app --search --template=ruby --output=yaml

Create a build config based on the source code in the current git repository (with a public

  # Create a build config based on the source code in the current git repository (with a public
  # remote) and a container image
  oc new-build . --image=repo/langimage

  # Create a NodeJS build config based on the provided [image]~[source code] combination
  oc new-build centos/nodejs-8-centos7~https://github.com/sclorg/nodejs-ex.git

  # Create a build config from a remote repository using its beta2 branch
  oc new-build https://github.com/openshift/ruby-hello-world#beta2

  # Create a build config using a Dockerfile specified as an argument
  oc new-build -D $'FROM centos:7\nRUN yum install -y httpd'

  # Create a build config from a remote repository and add custom environment variables
  oc new-build https://github.com/openshift/ruby-hello-world -e RACK_ENV=development

  # Create a build config from a remote private repository and specify which existing secret to use
  oc new-build https://github.com/youruser/yourgitrepo --source-secret=yoursecret

  # Create a build config using  an image with the full manifest list to create an app and override application artifacts' names
  oc new-build --image=myregistry.com/mycompany/image --name=private --import-mode=PreserveOriginal

  # Create a build config from a remote repository and inject the npmrc into a build
  oc new-build https://github.com/openshift/ruby-hello-world --build-secret npmrc:.npmrc

  # Create a build config from a remote repository and inject environment data into a build
  oc new-build https://github.com/openshift/ruby-hello-world --build-config-map env:config

  # Create a build config that gets its input from a remote repository and another container image
  oc new-build https://github.com/openshift/ruby-hello-world --source-image=openshift/jenkins-1-centos7 --source-image-path=/var/lib/jenkins:tmp

Create a new project with minimal information

  # Create a new project with minimal information
  oc new-project web-team-dev

  # Create a new project with a display name and description
  oc new-project web-team-dev --display-name="Web Team Development" --description="Development project for the web team."

Observe changes to services

  # Observe changes to services
  oc observe services

  # Observe changes to services, including the clusterIP and invoke a script for each
  oc observe services --template '{ .spec.clusterIP }' -- register_dns.sh

  # Observe changes to services filtered by a label selector
  oc observe services -l regist-dns=true --template '{ .spec.clusterIP }' -- register_dns.sh

Partially update a node using a strategic merge patch, specifying the patch as JSON

  # Partially update a node using a strategic merge patch, specifying the patch as JSON
  oc patch node k8s-node-1 -p '{"spec":{"unschedulable":true}}'

  # Partially update a node using a strategic merge patch, specifying the patch as YAML
  oc patch node k8s-node-1 -p $'spec:\n unschedulable: true'

  # Partially update a node identified by the type and name specified in "node.json" using strategic merge patch
  oc patch -f node.json -p '{"spec":{"unschedulable":true}}'

  # Update a container's image; spec.containers[*].name is required because it's a merge key
  oc patch pod valid-pod -p '{"spec":{"containers":[{"name":"kubernetes-serve-hostname","image":"new image"}]}}'

  # Update a container's image using a JSON patch with positional arrays
  oc patch pod valid-pod --type='json' -p='[{"op": "replace", "path": "/spec/containers/0/image", "value":"new image"}]'

  # Update a deployment's replicas through the 'scale' subresource using a merge patch
  oc patch deployment nginx-deployment --subresource='scale' --type='merge' -p '{"spec":{"replicas":2}}'

List all available plugins

  # List all available plugins
  oc plugin list

Add the 'view' role to user1 for the current project

  # Add the 'view' role to user1 for the current project
  oc policy add-role-to-user view user1

  # Add the 'edit' role to serviceaccount1 for the current project
  oc policy add-role-to-user edit -z serviceaccount1

Check whether service accounts sa1 and sa2 can admit a pod with a template pod spec specified in my_resource.yaml

  # Check whether service accounts sa1 and sa2 can admit a pod with a template pod spec specified in my_resource.yaml
  # Service Account specified in myresource.yaml file is ignored
  oc policy scc-review -z sa1,sa2 -f my_resource.yaml

  # Check whether service accounts system:serviceaccount:bob:default can admit a pod with a template pod spec specified in my_resource.yaml
  oc policy scc-review -z system:serviceaccount:bob:default -f my_resource.yaml

  # Check whether the service account specified in my_resource_with_sa.yaml can admit the pod
  oc policy scc-review -f my_resource_with_sa.yaml

  # Check whether the default service account can admit the pod; default is taken since no service account is defined in myresource_with_no_sa.yaml
  oc policy scc-review -f myresource_with_no_sa.yaml

Check whether user bob can create a pod specified in myresource.yaml

  # Check whether user bob can create a pod specified in myresource.yaml
  oc policy scc-subject-review -u bob -f myresource.yaml

  # Check whether user bob who belongs to projectAdmin group can create a pod specified in myresource.yaml
  oc policy scc-subject-review -u bob -g projectAdmin -f myresource.yaml

  # Check whether a service account specified in the pod template spec in myresourcewithsa.yaml can create the pod
  oc policy scc-subject-review -f myresourcewithsa.yaml

Listen on ports 5000 and 6000 locally, forwarding data to/from ports 5000 and 6000 in the pod

  # Listen on ports 5000 and 6000 locally, forwarding data to/from ports 5000 and 6000 in the pod
  oc port-forward pod/mypod 5000 6000

  # Listen on ports 5000 and 6000 locally, forwarding data to/from ports 5000 and 6000 in a pod selected by the deployment
  oc port-forward deployment/mydeployment 5000 6000

  # Listen on port 8443 locally, forwarding to the targetPort of the service's port named "https" in a pod selected by the service
  oc port-forward service/myservice 8443:https

  # Listen on port 8888 locally, forwarding to 5000 in the pod
  oc port-forward pod/mypod 8888:5000

  # Listen on port 8888 on all addresses, forwarding to 5000 in the pod
  oc port-forward --address 0.0.0.0 pod/mypod 8888:5000

  # Listen on port 8888 on localhost and selected IP, forwarding to 5000 in the pod
  oc port-forward --address localhost,10.19.21.23 pod/mypod 8888:5000

  # Listen on a random port locally, forwarding to 5000 in the pod
  oc port-forward pod/mypod :5000

Convert the template.json file into a resource list and pass to create

  # Convert the template.json file into a resource list and pass to create
  oc process -f template.json | oc create -f -

  # Process a file locally instead of contacting the server
  oc process -f template.json --local -o yaml

  # Process template while passing a user-defined label
  oc process -f template.json -l name=mytemplate

  # Convert a stored template into a resource list
  oc process foo

  # Convert a stored template into a resource list by setting/overriding parameter values
  oc process foo PARM1=VALUE1 PARM2=VALUE2

  # Convert a template stored in different namespace into a resource list
  oc process openshift//foo

  # Convert template.json into a resource list
  cat template.json | oc process -f -

Switch to the 'myapp' project

  # Switch to the 'myapp' project
  oc project myapp

  # Display the project currently in use
  oc project

List all projects

  # List all projects
  oc projects

To proxy all of the Kubernetes API and nothing else

  # To proxy all of the Kubernetes API and nothing else
  oc proxy --api-prefix=/

  # To proxy only part of the Kubernetes API and also some static files
  # You can get pods info with 'curl localhost:8001/api/v1/pods'
  oc proxy --www=/my/files --www-prefix=/static/ --api-prefix=/api/

  # To proxy the entire Kubernetes API at a different root
  # You can get pods info with 'curl localhost:8001/custom/api/v1/pods'
  oc proxy --api-prefix=/custom/

  # Run a proxy to the Kubernetes API server on port 8011, serving static content from ./local/www/
  oc proxy --port=8011 --www=./local/www/

  # Run a proxy to the Kubernetes API server on an arbitrary local port
  # The chosen port for the server will be output to stdout
  oc proxy --port=0

  # Run a proxy to the Kubernetes API server, changing the API prefix to k8s-api
  # This makes e.g. the pods API available at localhost:8001/k8s-api/v1/pods/
  oc proxy --api-prefix=/k8s-api

Log in to the integrated registry

  # Log in to the integrated registry
  oc registry login

  # Log in to different registry using BASIC auth credentials
  oc registry login --registry quay.io/myregistry --auth-basic=USER:PASS

Replace a pod using the data in pod.json

  # Replace a pod using the data in pod.json
  oc replace -f ./pod.json

  # Replace a pod based on the JSON passed into stdin
  cat pod.json | oc replace -f -

  # Update a single-container pod's image version (tag) to v4
  oc get pod mypod -o yaml | sed 's/\(image: myimage\):.*$/\1:v4/' | oc replace -f -

  # Force replace, delete and then re-create the resource
  oc replace --force -f ./pod.json

Perform a rollback to the last successfully completed deployment for a deployment config

  # Perform a rollback to the last successfully completed deployment for a deployment config
  oc rollback frontend

  # See what a rollback to version 3 will look like, but do not perform the rollback
  oc rollback frontend --to-version=3 --dry-run

  # Perform a rollback to a specific deployment
  oc rollback frontend-2

  # Perform the rollback manually by piping the JSON of the new config back to oc
  oc rollback frontend -o json | oc replace dc/frontend -f -

  # Print the updated deployment configuration in JSON format instead of performing the rollback
  oc rollback frontend -o json

Cancel the in-progress deployment based on 'nginx'

  # Cancel the in-progress deployment based on 'nginx'
  oc rollout cancel dc/nginx

View the rollout history of a deployment

  # View the rollout history of a deployment
  oc rollout history dc/nginx

  # View the details of deployment revision 3
  oc rollout history dc/nginx --revision=3

Start a new rollout based on the latest images defined in the image change triggers

  # Start a new rollout based on the latest images defined in the image change triggers
  oc rollout latest dc/nginx

  # Print the rolled out deployment config
  oc rollout latest dc/nginx -o json

Mark the nginx deployment as paused. Any current state of

  # Mark the nginx deployment as paused. Any current state of
  # the deployment will continue its function, new updates to the deployment will not
  # have an effect as long as the deployment is paused
  oc rollout pause dc/nginx

Restart all deployments in test-namespace namespace

  # Restart all deployments in test-namespace namespace
  oc rollout restart deployment -n test-namespace

  # Restart a deployment
  oc rollout restart deployment/nginx

  # Restart a daemon set
  oc rollout restart daemonset/abc

  # Restart deployments with the app=nginx label
  oc rollout restart deployment --selector=app=nginx

Resume an already paused deployment

  # Resume an already paused deployment
  oc rollout resume dc/nginx

Retry the latest failed deployment based on 'frontend'

  # Retry the latest failed deployment based on 'frontend'
  # The deployer pod and any hook pods are deleted for the latest failed deployment
  oc rollout retry dc/frontend

Watch the status of the latest rollout

  # Watch the status of the latest rollout
  oc rollout status dc/nginx

Roll back to the previous deployment

  # Roll back to the previous deployment
  oc rollout undo dc/nginx

  # Roll back to deployment revision 3. The replication controller for that version must exist
  oc rollout undo dc/nginx --to-revision=3

Open a shell session on the first container in pod 'foo'

  # Open a shell session on the first container in pod 'foo'
  oc rsh foo

  # Open a shell session on the first container in pod 'foo' and namespace 'bar'
  # (Note that oc client specific arguments must come before the resource name and its arguments)
  oc rsh -n bar foo

  # Run the command 'cat /etc/resolv.conf' inside pod 'foo'
  oc rsh foo cat /etc/resolv.conf

  # See the configuration of your internal registry
  oc rsh dc/docker-registry cat config.yml

  # Open a shell session on the container named 'index' inside a pod of your job
  oc rsh -c index job/scheduled

Synchronize a local directory with a pod directory

  # Synchronize a local directory with a pod directory
  oc rsync ./local/dir/ POD:/remote/dir

  # Synchronize a pod directory with a local directory
  oc rsync POD:/remote/dir/ ./local/dir

Start a nginx pod

  # Start a nginx pod
  oc run nginx --image=nginx

  # Start a hazelcast pod and let the container expose port 5701
  oc run hazelcast --image=hazelcast/hazelcast --port=5701

  # Start a hazelcast pod and set environment variables "DNS_DOMAIN=cluster" and "POD_NAMESPACE=default" in the container
  oc run hazelcast --image=hazelcast/hazelcast --env="DNS_DOMAIN=cluster" --env="POD_NAMESPACE=default"

  # Start a hazelcast pod and set labels "app=hazelcast" and "env=prod" in the container
  oc run hazelcast --image=hazelcast/hazelcast --labels="app=hazelcast,env=prod"

  # Dry run; print the corresponding API objects without creating them
  oc run nginx --image=nginx --dry-run=client

  # Start a nginx pod, but overload the spec with a partial set of values parsed from JSON
  oc run nginx --image=nginx --overrides='{ "apiVersion": "v1", "spec": { ... } }'

  # Start a busybox pod and keep it in the foreground, don't restart it if it exits
  oc run -i -t busybox --image=busybox --restart=Never

  # Start the nginx pod using the default command, but use custom arguments (arg1 .. argN) for that command
  oc run nginx --image=nginx -- <arg1> <arg2> ... <argN>

  # Start the nginx pod using a different command and custom arguments
  oc run nginx --image=nginx --command -- <cmd> <arg1> ... <argN>

Scale a replica set named 'foo' to 3

  # Scale a replica set named 'foo' to 3
  oc scale --replicas=3 rs/foo

  # Scale a resource identified by type and name specified in "foo.yaml" to 3
  oc scale --replicas=3 -f foo.yaml

  # If the deployment named mysql's current size is 2, scale mysql to 3
  oc scale --current-replicas=2 --replicas=3 deployment/mysql

  # Scale multiple replication controllers
  oc scale --replicas=5 rc/example1 rc/example2 rc/example3

  # Scale stateful set named 'web' to 3
  oc scale --replicas=3 statefulset/web

Add an image pull secret to a service account to automatically use it for pulling pod images

  # Add an image pull secret to a service account to automatically use it for pulling pod images
  oc secrets link serviceaccount-name pull-secret --for=pull

  # Add an image pull secret to a service account to automatically use it for both pulling and pushing build images
  oc secrets link builder builder-image-secret --for=pull,mount

Unlink a secret currently associated with a service account

  # Unlink a secret currently associated with a service account
  oc secrets unlink serviceaccount-name secret-name another-secret-name ...

Clear post-commit hook on a build config

  # Clear post-commit hook on a build config
  oc set build-hook bc/mybuild --post-commit --remove

  # Set the post-commit hook to execute a test suite using a new entrypoint
  oc set build-hook bc/mybuild --post-commit --command -- /bin/bash -c /var/lib/test-image.sh

  # Set the post-commit hook to execute a shell script
  oc set build-hook bc/mybuild --post-commit --script="/var/lib/test-image.sh param1 param2 && /var/lib/done.sh"

Clear the push secret on a build config

  # Clear the push secret on a build config
  oc set build-secret --push --remove bc/mybuild

  # Set the pull secret on a build config
  oc set build-secret --pull bc/mybuild mysecret

  # Set the push and pull secret on a build config
  oc set build-secret --push --pull bc/mybuild mysecret

  # Set the source secret on a set of build configs matching a selector
  oc set build-secret --source -l app=myapp gitsecret

Set the 'password' key of a secret

  # Set the 'password' key of a secret
  oc set data secret/foo password=this_is_secret

  # Remove the 'password' key from a secret
  oc set data secret/foo password-

  # Update the 'haproxy.conf' key of a config map from a file on disk
  oc set data configmap/bar --from-file=../haproxy.conf

  # Update a secret with the contents of a directory, one key per file
  oc set data secret/foo --from-file=secret-dir

Clear pre and post hooks on a deployment config

  # Clear pre and post hooks on a deployment config
  oc set deployment-hook dc/myapp --remove --pre --post

  # Set the pre deployment hook to execute a db migration command for an application
  # using the data volume from the application
  oc set deployment-hook dc/myapp --pre --volumes=data -- /var/lib/migrate-db.sh

  # Set a mid deployment hook along with additional environment variables
  oc set deployment-hook dc/myapp --mid --volumes=data -e VAR1=value1 -e VAR2=value2 -- /var/lib/prepare-deploy.sh

Update deployment config 'myapp' with a new environment variable

  # Update deployment config 'myapp' with a new environment variable
  oc set env dc/myapp STORAGE_DIR=/local

  # List the environment variables defined on a build config 'sample-build'
  oc set env bc/sample-build --list

  # List the environment variables defined on all pods
  oc set env pods --all --list

  # Output modified build config in YAML
  oc set env bc/sample-build STORAGE_DIR=/data -o yaml

  # Update all containers in all replication controllers in the project to have ENV=prod
  oc set env rc --all ENV=prod

  # Import environment from a secret
  oc set env --from=secret/mysecret dc/myapp

  # Import environment from a config map with a prefix
  oc set env --from=configmap/myconfigmap --prefix=MYSQL_ dc/myapp

  # Remove the environment variable ENV from container 'c1' in all deployment configs
  oc set env dc --all --containers="c1" ENV-

  # Remove the environment variable ENV from a deployment config definition on disk and
  # update the deployment config on the server
  oc set env -f dc.json ENV-

  # Set some of the local shell environment into a deployment config on the server
  oc set env | grep RAILS_ | oc env -e - dc/myapp

Set a deployment config's nginx container image to 'nginx:1.9.1', and its busybox container image to 'busybox'.

  # Set a deployment config's nginx container image to 'nginx:1.9.1', and its busybox container image to 'busybox'.
  oc set image dc/nginx busybox=busybox nginx=nginx:1.9.1

  # Set a deployment config's app container image to the image referenced by the imagestream tag 'openshift/ruby:2.3'.
  oc set image dc/myapp app=openshift/ruby:2.3 --source=imagestreamtag

  # Update all deployments' and rc's nginx container's image to 'nginx:1.9.1'
  oc set image deployments,rc nginx=nginx:1.9.1 --all

  # Update image of all containers of daemonset abc to 'nginx:1.9.1'
  oc set image daemonset abc *=nginx:1.9.1

  # Print result (in YAML format) of updating nginx container image from local file, without hitting the server
  oc set image -f path/to/file.yaml nginx=nginx:1.9.1 --local -o yaml

Print all of the image streams and whether they resolve local names

  # Print all of the image streams and whether they resolve local names
  oc set image-lookup

  # Use local name lookup on image stream mysql
  oc set image-lookup mysql

  # Force a deployment to use local name lookup
  oc set image-lookup deploy/mysql

  # Show the current status of the deployment lookup
  oc set image-lookup deploy/mysql --list

  # Disable local name lookup on image stream mysql
  oc set image-lookup mysql --enabled=false

  # Set local name lookup on all image streams
  oc set image-lookup --all

Clear both readiness and liveness probes off all containers

  # Clear both readiness and liveness probes off all containers
  oc set probe dc/myapp --remove --readiness --liveness

  # Set an exec action as a liveness probe to run 'echo ok'
  oc set probe dc/myapp --liveness -- echo ok

  # Set a readiness probe to try to open a TCP socket on 3306
  oc set probe rc/mysql --readiness --open-tcp=3306

  # Set an HTTP startup probe for port 8080 and path /healthz over HTTP on the pod IP
  oc set probe dc/webapp --startup --get-url=http://:8080/healthz

  # Set an HTTP readiness probe for port 8080 and path /healthz over HTTP on the pod IP
  oc set probe dc/webapp --readiness --get-url=http://:8080/healthz

  # Set an HTTP readiness probe over HTTPS on 127.0.0.1 for a hostNetwork pod
  oc set probe dc/router --readiness --get-url=https://127.0.0.1:1936/stats

  # Set only the initial-delay-seconds field on all deployments
  oc set probe dc --all --readiness --initial-delay-seconds=30

Set a deployments nginx container CPU limits to "200m and memory to 512Mi"

  # Set a deployments nginx container CPU limits to "200m and memory to 512Mi"
  oc set resources deployment nginx -c=nginx --limits=cpu=200m,memory=512Mi

  # Set the resource request and limits for all containers in nginx
  oc set resources deployment nginx --limits=cpu=200m,memory=512Mi --requests=cpu=100m,memory=256Mi

  # Remove the resource requests for resources on containers in nginx
  oc set resources deployment nginx --limits=cpu=0,memory=0 --requests=cpu=0,memory=0

  # Print the result (in YAML format) of updating nginx container limits locally, without hitting the server
  oc set resources -f path/to/file.yaml --limits=cpu=200m,memory=512Mi --local -o yaml

Print the backends on the route 'web'

  # Print the backends on the route 'web'
  oc set route-backends web

  # Set two backend services on route 'web' with 2/3rds of traffic going to 'a'
  oc set route-backends web a=2 b=1

  # Increase the traffic percentage going to b by 10%% relative to a
  oc set route-backends web --adjust b=+10%%

  # Set traffic percentage going to b to 10%% of the traffic going to a
  oc set route-backends web --adjust b=10%%

  # Set weight of b to 10
  oc set route-backends web --adjust b=10

  # Set the weight to all backends to zero
  oc set route-backends web --zero

Set the labels and selector before creating a deployment/service pair.

  # Set the labels and selector before creating a deployment/service pair.
  oc create service clusterip my-svc --clusterip="None" -o yaml --dry-run | oc set selector --local -f - 'environment=qa' -o yaml | oc create -f -
  oc create deployment my-dep -o yaml --dry-run | oc label --local -f - environment=qa -o yaml | oc create -f -

Set deployment nginx-deployment's service account to serviceaccount1

  # Set deployment nginx-deployment's service account to serviceaccount1
  oc set serviceaccount deployment nginx-deployment serviceaccount1

  # Print the result (in YAML format) of updated nginx deployment with service account from a local file, without hitting the API server
  oc set sa -f nginx-deployment.yaml serviceaccount1 --local --dry-run -o yaml

Update a cluster role binding for serviceaccount1

  # Update a cluster role binding for serviceaccount1
  oc set subject clusterrolebinding admin --serviceaccount=namespace:serviceaccount1

  # Update a role binding for user1, user2, and group1
  oc set subject rolebinding admin --user=user1 --user=user2 --group=group1

  # Print the result (in YAML format) of updating role binding subjects locally, without hitting the server
  oc create rolebinding admin --role=admin --user=admin -o yaml --dry-run | oc set subject --local -f - --user=foo -o yaml

Print the triggers on the deployment config 'myapp'

  # Print the triggers on the deployment config 'myapp'
  oc set triggers dc/myapp

  # Set all triggers to manual
  oc set triggers dc/myapp --manual

  # Enable all automatic triggers
  oc set triggers dc/myapp --auto

  # Reset the GitHub webhook on a build to a new, generated secret
  oc set triggers bc/webapp --from-github
  oc set triggers bc/webapp --from-webhook

  # Remove all triggers
  oc set triggers bc/webapp --remove-all

  # Stop triggering on config change
  oc set triggers dc/myapp --from-config --remove

  # Add an image trigger to a build config
  oc set triggers bc/webapp --from-image=namespace1/image:latest

  # Add an image trigger to a stateful set on the main container
  oc set triggers statefulset/db --from-image=namespace1/image:latest -c main

List volumes defined on all deployment configs in the current project

  # List volumes defined on all deployment configs in the current project
  oc set volume dc --all

  # Add a new empty dir volume to deployment config (dc) 'myapp' mounted under
  # /var/lib/myapp
  oc set volume dc/myapp --add --mount-path=/var/lib/myapp

  # Use an existing persistent volume claim (PVC) to overwrite an existing volume 'v1'
  oc set volume dc/myapp --add --name=v1 -t pvc --claim-name=pvc1 --overwrite

  # Remove volume 'v1' from deployment config 'myapp'
  oc set volume dc/myapp --remove --name=v1

  # Create a new persistent volume claim that overwrites an existing volume 'v1'
  oc set volume dc/myapp --add --name=v1 -t pvc --claim-size=1G --overwrite

  # Change the mount point for volume 'v1' to /data
  oc set volume dc/myapp --add --name=v1 -m /data --overwrite

  # Modify the deployment config by removing volume mount "v1" from container "c1"
  # (and by removing the volume "v1" if no other containers have volume mounts that reference it)
  oc set volume dc/myapp --remove --name=v1 --containers=c1

  # Add new volume based on a more complex volume source (AWS EBS, GCE PD,
  # Ceph, Gluster, NFS, ISCSI, ...)
  oc set volume dc/myapp --add -m /data --source=<json-string>

Starts build from build config "hello-world"

  # Starts build from build config "hello-world"
  oc start-build hello-world

  # Starts build from a previous build "hello-world-1"
  oc start-build --from-build=hello-world-1

  # Use the contents of a directory as build input
  oc start-build hello-world --from-dir=src/

  # Send the contents of a Git repository to the server from tag 'v2'
  oc start-build hello-world --from-repo=../hello-world --commit=v2

  # Start a new build for build config "hello-world" and watch the logs until the build
  # completes or fails
  oc start-build hello-world --follow

  # Start a new build for build config "hello-world" and wait until the build completes. It
  # exits with a non-zero return code if the build fails
  oc start-build hello-world --wait

See an overview of the current project

  # See an overview of the current project
  oc status

  # Export the overview of the current project in an svg file
  oc status -o dot | dot -T svg -o project.svg

  # See an overview of the current project including details for any identified issues
  oc status --suggest

Tag the current image for the image stream 'openshift/ruby' and tag '2.0' into the image stream 'yourproject/ruby with tag 'tip'

  # Tag the current image for the image stream 'openshift/ruby' and tag '2.0' into the image stream 'yourproject/ruby with tag 'tip'
  oc tag openshift/ruby:2.0 yourproject/ruby:tip

  # Tag a specific image
  oc tag openshift/ruby@sha256:6b646fa6bf5e5e4c7fa41056c27910e679c03ebe7f93e361e6515a9da7e258cc yourproject/ruby:tip

  # Tag an external container image
  oc tag --source=docker openshift/origin-control-plane:latest yourproject/ruby:tip

  # Tag an external container image and request pullthrough for it
  oc tag --source=docker openshift/origin-control-plane:latest yourproject/ruby:tip --reference-policy=local

  # Tag an external container image and include the full manifest list
  oc tag --source=docker openshift/origin-control-plane:latest yourproject/ruby:tip --import-mode=PreserveOriginal

  # Remove the specified spec tag from an image stream
  oc tag openshift/origin-control-plane:latest -d

Print the OpenShift client, kube-apiserver, and openshift-apiserver version information for the current context

  # Print the OpenShift client, kube-apiserver, and openshift-apiserver version information for the current context
  oc version

  # Print the OpenShift client, kube-apiserver, and openshift-apiserver version numbers for the current context in json format
  oc version --output json

  # Print the OpenShift client version information for the current context
  oc version --client

Wait for the pod "busybox1" to contain the status condition of type "Ready"

  # Wait for the pod "busybox1" to contain the status condition of type "Ready"
  oc wait --for=condition=Ready pod/busybox1

  # The default value of status condition is true; you can wait for other targets after an equal delimiter (compared after Unicode simple case folding, which is a more general form of case-insensitivity)
  oc wait --for=condition=Ready=false pod/busybox1

  # Wait for the pod "busybox1" to contain the status phase to be "Running"
  oc wait --for=jsonpath='{.status.phase}'=Running pod/busybox1

  # Wait for pod "busybox1" to be Ready
  oc wait --for='jsonpath={.status.conditions[?(@.type=="Ready")].status}=True' pod/busybox1

  # Wait for the service "loadbalancer" to have ingress.
  oc wait --for=jsonpath='{.status.loadBalancer.ingress}' service/loadbalancer

  # Wait for the pod "busybox1" to be deleted, with a timeout of 60s, after having issued the "delete" command
  oc delete pod/busybox1
  oc wait --for=delete pod/busybox1 --timeout=60s

Display the currently authenticated user

  # Display the currently authenticated user
  oc whoami

Build the dependency tree for the 'latest' tag in <image-stream>

  # Build the dependency tree for the 'latest' tag in <image-stream>
  oc adm build-chain <image-stream>

  # Build the dependency tree for the 'v2' tag in dot format and visualize it via the dot utility
  oc adm build-chain <image-stream>:v2 -o dot | dot -T svg -o deps.svg

  # Build the dependency tree across all namespaces for the specified image stream tag found in the 'test' namespace
  oc adm build-chain <image-stream> -n test --all

Mirror an operator-registry image and its contents to a registry

  # Mirror an operator-registry image and its contents to a registry
  oc adm catalog mirror quay.io/my/image:latest myregistry.com

  # Mirror an operator-registry image and its contents to a particular namespace in a registry
  oc adm catalog mirror quay.io/my/image:latest myregistry.com/my-namespace

  # Mirror to an airgapped registry by first mirroring to files
  oc adm catalog mirror quay.io/my/image:latest file:///local/index
  oc adm catalog mirror file:///local/index/my/image:latest my-airgapped-registry.com

  # Configure a cluster to use a mirrored registry
  oc apply -f manifests/imageDigestMirrorSet.yaml

  # Edit the mirroring mappings and mirror with "oc image mirror" manually
  oc adm catalog mirror --manifests-only quay.io/my/image:latest myregistry.com
  oc image mirror -f manifests/mapping.txt

  # Delete all ImageDigestMirrorSets generated by oc adm catalog mirror
  oc delete imagedigestmirrorset -l operators.openshift.org/catalog=true

Approve CSR 'csr-sqgzp'

  # Approve CSR 'csr-sqgzp'
  oc adm certificate approve csr-sqgzp

Deny CSR 'csr-sqgzp'

  # Deny CSR 'csr-sqgzp'
  oc adm certificate deny csr-sqgzp

copy a new bootstrap kubeconfig file to node-0

  # copy a new bootstrap kubeconfig file to node-0
  oc adm copy-to-node --copy=new-bootstrap-kubeconfig=/etc/kubernetes/kubeconfig node/node-0

Mark node "foo" as unschedulable

  # Mark node "foo" as unschedulable
  oc adm cordon foo

Output a bootstrap project template in YAML format to stdout

  # Output a bootstrap project template in YAML format to stdout
  oc adm create-bootstrap-project-template -o yaml

Output a template for the error page to stdout

  # Output a template for the error page to stdout
  oc adm create-error-template

Output a template for the login page to stdout

  # Output a template for the login page to stdout
  oc adm create-login-template

Output a template for the provider selection page to stdout

  # Output a template for the provider selection page to stdout
  oc adm create-provider-selection-template

Drain node "foo", even if there are pods not managed by a replication controller, replica set, job, daemon set, or stateful set on it

  # Drain node "foo", even if there are pods not managed by a replication controller, replica set, job, daemon set, or stateful set on it
  oc adm drain foo --force

  # As above, but abort if there are pods not managed by a replication controller, replica set, job, daemon set, or stateful set, and use a grace period of 15 minutes
  oc adm drain foo --grace-period=900

Add user1 and user2 to my-group

  # Add user1 and user2 to my-group
  oc adm groups add-users my-group user1 user2

Add a group with no users

  # Add a group with no users
  oc adm groups new my-group

  # Add a group with two users
  oc adm groups new my-group user1 user2

  # Add a group with one user and shorter output
  oc adm groups new my-group user1 -o name

Prune all orphaned groups

  # Prune all orphaned groups
  oc adm groups prune --sync-config=/path/to/ldap-sync-config.yaml --confirm

  # Prune all orphaned groups except the ones from the denylist file
  oc adm groups prune --blacklist=/path/to/denylist.txt --sync-config=/path/to/ldap-sync-config.yaml --confirm

  # Prune all orphaned groups from a list of specific groups specified in an allowlist file
  oc adm groups prune --whitelist=/path/to/allowlist.txt --sync-config=/path/to/ldap-sync-config.yaml --confirm

  # Prune all orphaned groups from a list of specific groups specified in a list
  oc adm groups prune groups/group_name groups/other_name --sync-config=/path/to/ldap-sync-config.yaml --confirm

Remove user1 and user2 from my-group

  # Remove user1 and user2 from my-group
  oc adm groups remove-users my-group user1 user2

Sync all groups with an LDAP server

  # Sync all groups with an LDAP server
  oc adm groups sync --sync-config=/path/to/ldap-sync-config.yaml --confirm

  # Sync all groups except the ones from the blacklist file with an LDAP server
  oc adm groups sync --blacklist=/path/to/blacklist.txt --sync-config=/path/to/ldap-sync-config.yaml --confirm

  # Sync specific groups specified in an allowlist file with an LDAP server
  oc adm groups sync --whitelist=/path/to/allowlist.txt --sync-config=/path/to/sync-config.yaml --confirm

  # Sync all OpenShift groups that have been synced previously with an LDAP server
  oc adm groups sync --type=openshift --sync-config=/path/to/ldap-sync-config.yaml --confirm

  # Sync specific OpenShift groups if they have been synced previously with an LDAP server
  oc adm groups sync groups/group1 groups/group2 groups/group3 --sync-config=/path/to/sync-config.yaml --confirm

Collect debugging data for the "openshift-apiserver" clusteroperator

  # Collect debugging data for the "openshift-apiserver" clusteroperator
  oc adm inspect clusteroperator/openshift-apiserver

  # Collect debugging data for the "openshift-apiserver" and "kube-apiserver" clusteroperators
  oc adm inspect clusteroperator/openshift-apiserver clusteroperator/kube-apiserver

  # Collect debugging data for all clusteroperators
  oc adm inspect clusteroperator

  # Collect debugging data for all clusteroperators and clusterversions
  oc adm inspect clusteroperators,clusterversions

Update the imagecontentsourcepolicy.yaml file to a new imagedigestmirrorset file under the mydir directory

  # Update the imagecontentsourcepolicy.yaml file to a new imagedigestmirrorset file under the mydir directory
  oc adm migrate icsp imagecontentsourcepolicy.yaml --dest-dir mydir

Perform a dry-run of updating all objects

  # Perform a dry-run of updating all objects
  oc adm migrate template-instances

  # To actually perform the update, the confirm flag must be appended
  oc adm migrate template-instances --confirm

Gather information using the default plug-in image and command, writing into ./must-gather.local.<rand>

  # Gather information using the default plug-in image and command, writing into ./must-gather.local.<rand>
  oc adm must-gather

  # Gather information with a specific local folder to copy to
  oc adm must-gather --dest-dir=/local/directory

  # Gather audit information
  oc adm must-gather -- /usr/bin/gather_audit_logs

  # Gather information using multiple plug-in images
  oc adm must-gather --image=quay.io/kubevirt/must-gather --image=quay.io/openshift/origin-must-gather

  # Gather information using a specific image stream plug-in
  oc adm must-gather --image-stream=openshift/must-gather:latest

  # Gather information using a specific image, command, and pod directory
  oc adm must-gather --image=my/image:tag --source-dir=/pod/directory -- myspecial-command.sh

Create a new project using a node selector

  # Create a new project using a node selector
  oc adm new-project myproject --node-selector='type=user-node,region=east'

Show kubelet logs from all masters

  # Show kubelet logs from all masters
  oc adm node-logs --role master -u kubelet

  # See what logs are available in masters in /var/log
  oc adm node-logs --role master --path=/

  # Display cron log file from all masters
  oc adm node-logs --role master --path=cron

Watch platform certificates.

  # Watch platform certificates.
  oc adm ocp-certificates monitor-certificates

Regenerate a leaf certificate contained in a particular secret.

  # Regenerate a leaf certificate contained in a particular secret.
  oc adm ocp-certificates regenerate-leaf -n openshift-config-managed secret/kube-controller-manager-client-cert-key

Regenerate the MCO certs without modifying user-data secrets

  # Regenerate the MCO certs without modifying user-data secrets
  oc adm ocp-certificates regenerate-machine-config-server-serving-cert --update-ignition=false

  # Update the user-data secrets to use new MCS certs
  oc adm ocp-certificates update-ignition-ca-bundle-for-machine-config-server

Regenerate the signing certificate contained in a particular secret.

  # Regenerate the signing certificate contained in a particular secret.
  oc adm ocp-certificates regenerate-top-level -n openshift-kube-apiserver-operator secret/loadbalancer-serving-signer-key

Remove a trust bundled contained in a particular config map

  # Remove a trust bundled contained in a particular config map
  oc adm ocp-certificates remove-old-trust -n openshift-config-managed configmaps/kube-apiserver-aggregator-client-ca --created-before 2023-06-05T14:44:06Z

  #  Remove only CA certificates created before a certain date from all trust bundles
  oc adm ocp-certificates remove-old-trust configmaps -A --all --created-before 2023-06-05T14:44:06Z