Chapter 6. OpenShift CLI command reference Descriptions and example commands for OpenShift CLI ( oc ) commands are included in this reference document. You must have cluster-admin or equivalent permissions to use these commands. To list administrator commands and information about them, use the following commands: Enter the oc adm -h command to list all administrator commands: Command syntax USD oc adm -h Enter the oc <command> --help command to get additional details for a specific command: Command syntax USD oc <command> --help Important Using oc <command> --help lists details for any oc command. Not all oc commands apply to using Red Hat build of MicroShift. 6.1. OpenShift CLI (oc) developer commands 6.1.1. oc annotate Update the annotations on a resource Example usage # 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- 6.1.2. oc api-resources Print the supported API resources on the server Example usage # 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 6.1.3. oc api-versions Print the supported API versions on the server, in the form of "group/version" Example usage # Print the supported API versions oc api-versions 6.1.4. oc apply Apply a configuration to a resource by file name or stdin Example usage # 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' - i.e. expand wildcard characters in file names 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 6.1.5. oc apply edit-last-applied Edit latest last-applied-configuration annotations of a resource/object Example usage # 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 6.1.6. oc apply set-last-applied Set the last-applied-configuration annotation on a live object to match the contents of a file Example usage # 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 6.1.7. oc apply view-last-applied View the latest last-applied-configuration annotations of a resource/object Example usage # 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 6.1.8. oc attach Attach to a running container Example usage # 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 6.1.9. oc auth can-i Check whether an action is allowed Example usage # 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 6.1.10. oc auth reconcile Reconciles rules for RBAC role, role binding, cluster role, and cluster role binding objects Example usage # Reconcile RBAC resources from a file oc auth reconcile -f my-rbac-rules.yaml 6.1.11. oc auth whoami Experimental: Check self subject attributes Example usage # Get your subject attributes. oc auth whoami # Get your subject attributes in JSON format. oc auth whoami -o json 6.1.12. oc cluster-info Display cluster information Example usage # Print the address of the control plane and cluster services oc cluster-info 6.1.13. oc cluster-info dump Dump relevant information for debugging and diagnosis Example usage # 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 6.1.14. oc completion Output shell completion code for the specified shell (bash, zsh, fish, or powershell) Example usage # 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 > USD(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 " # Kubectl shell completion source 'USDHOME/.kube/completion.bash.inc' " >> USDHOME/.bash_profile source USDHOME/.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 > "USD{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 > USDHOME\.kube\completion.ps1 Add-Content USDPROFILE "USDHOME\.kube\completion.ps1" ## Execute completion code in the profile Add-Content USDPROFILE "if (Get-Command oc -ErrorAction SilentlyContinue) { oc completion powershell | Out-String | Invoke-Expression }" ## Add completion code directly to the USDPROFILE script oc completion powershell >> USDPROFILE 6.1.15. oc config current-context Display the current-context Example usage # Display the current-context oc config current-context 6.1.16. oc config delete-cluster Delete the specified cluster from the kubeconfig Example usage # Delete the minikube cluster oc config delete-cluster minikube 6.1.17. oc config delete-context Delete the specified context from the kubeconfig Example usage # Delete the context for the minikube cluster oc config delete-context minikube 6.1.18. oc config delete-user Delete the specified user from the kubeconfig Example usage # Delete the minikube user oc config delete-user minikube 6.1.19. oc config get-clusters Display clusters defined in the kubeconfig Example usage # List the clusters that oc knows about oc config get-clusters 6.1.20. oc config get-contexts Describe one or many contexts Example usage # 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 6.1.21. oc config get-users Display users defined in the kubeconfig Example usage # List the users that oc knows about oc config get-users 6.1.22. oc config new-admin-kubeconfig Generate, make the server trust, and display a new admin.kubeconfig. Example usage # Generate a new admin kubeconfig oc config new-admin-kubeconfig 6.1.23. oc config new-kubelet-bootstrap-kubeconfig Generate, make the server trust, and display a new kubelet /etc/kubernetes/kubeconfig. Example usage # Generate a new kubelet bootstrap kubeconfig oc config new-kubelet-bootstrap-kubeconfig 6.1.24. oc config refresh-ca-bundle Update the OpenShift CA bundle by contacting the apiserver. Example usage # 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 6.1.25. oc config rename-context Rename a context from the kubeconfig file Example usage # Rename the context 'old-name' to 'new-name' in your kubeconfig file oc config rename-context old-name new-name 6.1.26. oc config set Set an individual value in a kubeconfig file Example usage # 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 USD(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 6.1.27. oc config set-cluster Set a cluster entry in kubeconfig Example usage # 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 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 proxy url for the e2e cluster entry oc config set-cluster e2e --proxy-url=https://1.2.3.4 6.1.28. oc config set-context Set a context entry in kubeconfig Example usage # Set the user field on the gce context entry without touching other values oc config set-context gce --user=cluster-admin 6.1.29. oc config set-credentials Set a user entry in kubeconfig Example usage # 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 args 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 args 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- 6.1.30. oc config unset Unset an individual value in a kubeconfig file Example usage # Unset the current-context oc config unset current-context # Unset namespace in foo context oc config unset contexts.foo.namespace 6.1.31. oc config use-context Set the current-context in a kubeconfig file Example usage # Use the context for the minikube cluster oc config use-context minikube 6.1.32. oc config view Display merged kubeconfig settings or a specified kubeconfig file Example usage # Show merged kubeconfig settings oc config view # Show merged kubeconfig settings and 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}' 6.1.33. oc cp Copy files and directories to and from containers Example usage # !!!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 6.1.34. oc create Create a resource from a file or from stdin Example usage # 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 6.1.35. oc create clusterrole Create a cluster role Example usage # 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" 6.1.36. oc create clusterrolebinding Create a cluster role binding for a particular cluster role Example usage # 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 6.1.37. oc create configmap Create a config map from a local file, directory or literal value Example usage # 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 6.1.38. oc create cronjob Create a cron job with the specified name Example usage # 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 6.1.39. oc create deployment Create a deployment with the specified name Example usage # 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 6.1.40. oc create ingress Create an ingress with the specified name Example usage # 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" 6.1.41. oc create job Create a job with the specified name Example usage # 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 6.1.42. oc create namespace Create a namespace with the specified name Example usage # Create a new namespace named my-namespace oc create namespace my-namespace 6.1.43. oc create poddisruptionbudget Create a pod disruption budget with the specified name Example usage # 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% 6.1.44. oc create priorityclass Create a priority class with the specified name Example usage # 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" 6.1.45. oc create quota Create a quota with the specified name Example usage # 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 6.1.46. oc create role Create a role with single rule Example usage # 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 6.1.47. oc create rolebinding Create a role binding for a particular role or cluster role Example usage # 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 6.1.48. oc create route edge Create a route that uses edge TLS termination Example usage # 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 6.1.49. oc create route passthrough Create a route that uses passthrough TLS termination Example usage # 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 6.1.50. oc create route reencrypt Create a route that uses reencrypt TLS termination Example usage # 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 6.1.51. oc create secret docker-registry Create a secret for use with a Docker registry Example usage # If you don't already have a .dockercfg file, you can create a dockercfg secret directly by using: 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 6.1.52. oc create secret generic Create a secret from a local file, directory, or literal value Example usage # 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 6.1.53. oc create secret tls Create a TLS secret Example usage # 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 6.1.54. oc create service clusterip Create a ClusterIP service Example usage # 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" 6.1.55. oc create service externalname Create an ExternalName service Example usage # Create a new ExternalName service named my-ns oc create service externalname my-ns --external-name bar.com 6.1.56. oc create service loadbalancer Create a LoadBalancer service Example usage # Create a new LoadBalancer service named my-lbs oc create service loadbalancer my-lbs --tcp=5678:8080 6.1.57. oc create service nodeport Create a NodePort service Example usage # Create a new NodePort service named my-ns oc create service nodeport my-ns --tcp=5678:8080 6.1.58. oc create serviceaccount Create a service account with the specified name Example usage # Create a new service account named my-service-account oc create serviceaccount my-service-account 6.1.59. oc create token Request a service account token Example usage # 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 6.1.60. oc debug Launch a new instance of a pod for debugging Example usage # 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 # 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 6.1.61. oc delete Delete resources by file names, stdin, resources and names, or by resources and label selector Example usage # 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' - i.e. expand wildcard characters in file names 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 6.1.62. oc describe Show details of a specific resource or group of resources Example usage # 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 po -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 6.1.63. oc diff Diff the live version against a would-be applied version Example usage # Diff resources included in pod.json oc diff -f pod.json # Diff file read from stdin cat service.yaml | oc diff -f - 6.1.64. oc edit Edit a resource on the server Example usage # 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 deployment/mydeployment's status subresource oc edit deployment mydeployment --subresource='status' 6.1.65. oc events List events Example usage # 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 given format. Supported ones, apart from default, are json and yaml. oc events -oyaml # List recent only events in given event types oc events --types=Warning,Normal 6.1.66. oc exec Execute a command in a container Example usage # 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 6.1.67. oc explain Get documentation for a resource Example usage # Get the documentation of the resource and its fields oc explain pods # Get the documentation of a specific field of a resource oc explain pods.spec.containers 6.1.68. oc expose Expose a replicated application as a service or route Example usage # 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 6.1.69. oc extract Extract secrets or config maps to disk Example usage # 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 6.1.70. oc get Display one or many resources Example usage # 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 status subresource for a single pod. oc get pod web-pod-13je7 --subresource status 6.1.71. oc image append Add layers to images and push them to a registry Example usage # 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 USD(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 USD(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 (USD(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 6.1.72. oc image extract Copy files from an image to the file system Example usage # 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 (USD(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 USD(pwd)/v2 into the current directory # --confirm is required because the current directory is not empty (USD(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 USD(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:] 6.1.73. oc image info Display information about an image Example usage # 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 6.1.74. oc image mirror Mirror images from one repository to another Example usage # 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=os/arch \ --keep-manifest-list=true 6.1.75. oc kustomize Build a kustomization target from a directory or URL Example usage # 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 6.1.76. oc label Update the labels on a resource Example usage # 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- 6.1.77. oc logs Print the logs for a container in a pod Example usage # 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 6.1.78. oc observe Observe changes to resources and react to them (experimental) Example usage # 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 6.1.79. oc patch Update fields of a resource Example usage # 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 USD'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}}' 6.1.80. oc plugin list List all visible plugin executables on a user's PATH Example usage # List all available plugins oc plugin list 6.1.81. oc policy add-role-to-user Add a role to users or service accounts for the current project Example usage # 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 6.1.82. oc policy scc-review Check which service account can create a pod Example usage # 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 6.1.83. oc policy scc-subject-review Check whether a user or a service account can create a pod Example usage # 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 6.1.84. oc port-forward Forward one or more local ports to a pod Example usage # 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 6.1.85. oc proxy Run a proxy to the Kubernetes API server Example usage # 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 6.1.86. oc rollback Revert part of an application back to a deployment Example usage # 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 6.1.87. oc rollout cancel Cancel the in-progress deployment Example usage # Cancel the in-progress deployment based on 'nginx' oc rollout cancel dc/nginx 6.1.88. oc rollout history View rollout history Example usage # 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 6.1.89. oc rollout latest Start a new rollout for a deployment config with the latest state from its triggers Example usage # 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 6.1.90. oc rollout pause Mark the provided resource as paused Example usage # 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 6.1.91. oc rollout restart Restart a resource Example usage # 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 6.1.92. oc rollout resume Resume a paused resource Example usage # Resume an already paused deployment oc rollout resume dc/nginx 6.1.93. oc rollout retry Retry the latest failed rollout Example usage # 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 6.1.94. oc rollout status Show the status of the rollout Example usage # Watch the status of the latest rollout oc rollout status dc/nginx 6.1.95. oc rollout undo Undo a rollout Example usage # Roll back to the 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 6.1.96. oc rsh Start a shell session in a container Example usage # 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 6.1.97. oc rsync Copy files between a local file system and a pod Example usage # 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 6.1.98. oc run Run a particular image on the cluster Example usage # 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> 6.1.99. oc scale Set a new size for a deployment, replica set, or replication controller Example usage # 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/foo rc/bar rc/baz # Scale stateful set named 'web' to 3 oc scale --replicas=3 statefulset/web 6.1.100. oc secrets link Link secrets to a service account Example usage # 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 6.1.101. oc secrets unlink Detach secrets from a service account Example usage # Unlink a secret currently associated with a service account oc secrets unlink serviceaccount-name secret-name another-secret-name ... 6.1.102. oc set data Update the data within a config map or secret Example usage # 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 6.1.103. oc set env Update environment variables on a pod template Example usage # 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 6.1.104. oc set image Update the image of a pod template Example usage # 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 6.1.105. oc set image-lookup Change how images are resolved when deploying applications Example usage # 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 6.1.106. oc set probe Update a probe on a pod template Example usage # 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 6.1.107. oc set resources Update resource requests/limits on objects with pod templates Example usage # 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 6.1.108. oc set route-backends Update the backends for a route Example usage # 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 6.1.109. oc set selector Set the selector on a resource Example usage # 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 - 6.1.110. oc set serviceaccount Update the service account of a resource Example usage # 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 6.1.111. oc set subject Update the user, group, or service account in a role binding or cluster role binding Example usage # 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 6.1.112. oc set volumes Update volumes on a pod template Example usage # 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> 6.1.113. oc tag Tag existing images into image streams Example usage # 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 6.1.114. oc version Print the client and server version information Example usage # 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 oc version --short # Print the OpenShift client version information for the current context oc version --client 6.1.115. oc wait Experimental: Wait for a specific condition on one or many resources Example usage # 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 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 6.2. OpenShift CLI (oc) administrator commands 6.2.1. oc adm inspect Collect debugging data for a given resource Example usage # Collect debugging data for a kubernetes service oc adm inspect service/kubernetes # Collect debugging data for a node oc adm inspect node/<node_name> # Collect debugging data for logicalvolumes in a CRD oc adm inspect crd/logicalvolumes.topolvm.io # Collect debugging data for routes.route.openshift.io in a CRD oc adm inspect crd/routes.route.openshift.io 6.2.2. oc adm release extract Extract the contents of an update payload to disk Example usage # Use git to check out the source code for the current cluster release to DIR oc adm release extract --git=DIR # Extract cloud credential requests for AWS oc adm release extract --credentials-requests --cloud=aws # Use git to check out the source code for the current cluster release to DIR from linux/s390x image # Note: Wildcard filter is not supported; pass a single os/arch to extract oc adm release extract --git=DIR quay.io/openshift-release-dev/ocp-release:4.11.2 --filter-by-os=linux/s390x 6.2.3. oc adm release info Display information about a release Example usage # Show information about the cluster's current release oc adm release info # Show the source code that comprises a release oc adm release info 4.11.2 --commit-urls # Show the source code difference between two releases oc adm release info 4.11.0 4.11.2 --commits # Show where the images referenced by the release are located oc adm release info quay.io/openshift-release-dev/ocp-release:4.11.2 --pullspecs # Show information about linux/s390x image # Note: Wildcard filter is not supported; pass a single os/arch to extract oc adm release info quay.io/openshift-release-dev/ocp-release:4.11.2 --filter-by-os=linux/s390x 6.2.4. oc adm taint Update the taints on nodes Example usage # Update node 'foo' with a taint with key 'dedicated' and value 'special-user' and effect 'NoSchedule' # If a taint with that key and effect already exists, its value is replaced as specified oc adm taint nodes foo dedicated=special-user:NoSchedule # Remove from node 'foo' the taint with key 'dedicated' and effect 'NoSchedule' if one exists oc adm taint nodes foo dedicated:NoSchedule- # Remove from node 'foo' all the taints with key 'dedicated' oc adm taint nodes foo dedicated- # Add a taint with key 'dedicated' on nodes having label mylabel=X oc adm taint node -l myLabel=X dedicated=foo:PreferNoSchedule # Add to node 'foo' a taint with key 'bar' and no value oc adm taint nodes foo bar:NoSchedule

Commands:
oc adm -h
oc <command> --help
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 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 oc api-versions
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' - i.e. expand wildcard characters in file names 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 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 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 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 # 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 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 oc auth reconcile -f my-rbac-rules.yaml
Get your subject attributes. oc auth whoami # Get your subject attributes in JSON format. oc auth whoami -o json
Print the address of the control plane and cluster services oc cluster-info
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 ## 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 > USD(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 " # Kubectl shell completion source 'USDHOME/.kube/completion.bash.inc' " >> USDHOME/.bash_profile source USDHOME/.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 > "USD{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 > USDHOME\.kube\completion.ps1 Add-Content USDPROFILE "USDHOME\.kube\completion.ps1" ## Execute completion code in the profile Add-Content USDPROFILE "if (Get-Command oc -ErrorAction SilentlyContinue) { oc completion powershell | Out-String | Invoke-Expression }" ## Add completion code directly to the USDPROFILE script oc completion powershell >> USDPROFILE
Display the current-context oc config current-context
Delete the minikube cluster oc config delete-cluster minikube
Delete the context for the minikube cluster oc config delete-context minikube
Delete the minikube user oc config delete-user minikube
List the clusters that oc knows about oc config get-clusters
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 oc config get-users
Generate a new admin kubeconfig oc config new-admin-kubeconfig
Generate a new kubelet bootstrap kubeconfig oc config new-kubelet-bootstrap-kubeconfig
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 oc config rename-context old-name new-name
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 USD(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 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 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 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 oc config set-context gce --user=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 args 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 args 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 oc config unset current-context # Unset namespace in foo context oc config unset contexts.foo.namespace
Use the context for the minikube cluster oc config use-context minikube
Show merged kubeconfig settings oc config view # Show merged kubeconfig settings and 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!!! # 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 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 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 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 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 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 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 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 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 oc create namespace my-namespace
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 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 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 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 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 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 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 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 don't already have a .dockercfg file, you can create a dockercfg secret directly by using: 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 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 oc create secret tls tls-secret --cert=path/to/tls.cert --key=path/to/tls.key
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 oc create service externalname my-ns --external-name bar.com
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 oc create service nodeport my-ns --tcp=5678:8080
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 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
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 # 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 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' - i.e. expand wildcard characters in file names 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 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 po -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 oc diff -f pod.json # Diff file read from stdin cat service.yaml | oc diff -f -
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 deployment/mydeployment's status subresource oc edit deployment mydeployment --subresource='status'
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 given format. Supported ones, apart from default, are json and yaml. oc events -oyaml # List recent only events in given event types oc events --types=Warning,Normal
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 oc explain pods # Get the documentation of a specific field of a resource oc explain pods.spec.containers
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 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 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 status subresource for a single pod. oc get pod web-pod-13je7 --subresource status
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 USD(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 USD(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 (USD(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 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 (USD(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 USD(pwd)/v2 into the current directory # --confirm is required because the current directory is not empty (USD(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 USD(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 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 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=os/arch --keep-manifest-list=true
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' 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-
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
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 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 USD'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 oc plugin list
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 # 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 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 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
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
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' oc rollout cancel dc/nginx
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 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 # 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 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 oc rollout resume dc/nginx
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 oc rollout status dc/nginx
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' 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 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 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 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/foo rc/bar rc/baz # 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 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 oc secrets unlink serviceaccount-name secret-name another-secret-name
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
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'. 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 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 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" 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' 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. 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 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 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
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>
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 oc version # Print the OpenShift client, kube-apiserver, and openshift-apiserver version numbers for the current context oc version --short # 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" 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 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
Collect debugging data for a kubernetes service oc adm inspect service/kubernetes # Collect debugging data for a node oc adm inspect node/<node_name> # Collect debugging data for logicalvolumes in a CRD oc adm inspect crd/logicalvolumes.topolvm.io # Collect debugging data for routes.route.openshift.io in a CRD oc adm inspect crd/routes.route.openshift.io
Use git to check out the source code for the current cluster release to DIR oc adm release extract --git=DIR # Extract cloud credential requests for AWS oc adm release extract --credentials-requests --cloud=aws # Use git to check out the source code for the current cluster release to DIR from linux/s390x image # Note: Wildcard filter is not supported; pass a single os/arch to extract oc adm release extract --git=DIR quay.io/openshift-release-dev/ocp-release:4.11.2 --filter-by-os=linux/s390x
Show information about the cluster's current release oc adm release info # Show the source code that comprises a release oc adm release info 4.11.2 --commit-urls # Show the source code difference between two releases oc adm release info 4.11.0 4.11.2 --commits # Show where the images referenced by the release are located oc adm release info quay.io/openshift-release-dev/ocp-release:4.11.2 --pullspecs # Show information about linux/s390x image # Note: Wildcard filter is not supported; pass a single os/arch to extract oc adm release info quay.io/openshift-release-dev/ocp-release:4.11.2 --filter-by-os=linux/s390x
Update node 'foo' with a taint with key 'dedicated' and value 'special-user' and effect 'NoSchedule' # If a taint with that key and effect already exists, its value is replaced as specified oc adm taint nodes foo dedicated=special-user:NoSchedule # Remove from node 'foo' the taint with key 'dedicated' and effect 'NoSchedule' if one exists oc adm taint nodes foo dedicated:NoSchedule- # Remove from node 'foo' all the taints with key 'dedicated' oc adm taint nodes foo dedicated- # Add a taint with key 'dedicated' on nodes having label mylabel=X oc adm taint node -l myLabel=X dedicated=foo:PreferNoSchedule # Add to node 'foo' a taint with key 'bar' and no value oc adm taint nodes foo bar:NoSchedule