第 6 章 OpenShift CLI 命令参考

用法示例

  # 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-

用法示例

  # 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

用法示例

  # Print the supported API versions
  oc api-versions

用法示例

  # 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

用法示例

  # 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

用法示例

  # 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

用法示例

  # 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

用法示例

  # 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

用法示例

  # 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

用法示例

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

用法示例

  # Get your subject attributes.
  oc auth whoami

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

用法示例

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

用法示例

  # 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

用法示例

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


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

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


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

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

用法示例

  # Display the current-context
  oc config current-context

用法示例

  # Delete the minikube cluster
  oc config delete-cluster minikube

用法示例

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

用法示例

  # Delete the minikube user
  oc config delete-user minikube

用法示例

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

用法示例

  # 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

用法示例

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

用法示例

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

用法示例

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

用法示例

  # 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

用法示例

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

用法示例

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

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

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

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

用法示例

  # 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

用法示例

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

用法示例

  # 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-

用法示例

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

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

用法示例

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

用法示例

  # 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}'

用法示例

  # !!!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

用法示例

  # 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

用法示例

  # 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"

用法示例

  # 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

用法示例

  # 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

用法示例

  # 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

用法示例

  # 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

用法示例

  # 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"

用法示例

  # 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

用法示例

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

用法示例

  # 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%

用法示例

  # 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"

用法示例

  # 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

用法示例

  # 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

用法示例

  # 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

用法示例

  # 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

用法示例

  # 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

用法示例

  # 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

用法示例

  # 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

用法示例

  # 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

用法示例

  # 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

用法示例

  # 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"

用法示例

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

用法示例

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

用法示例

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

用法示例

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

用法示例

  # 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

用法示例

  # 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

用法示例

  # 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

用法示例

  # 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

用法示例

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

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

用法示例

  # 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'

用法示例

  # 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

用法示例

  # 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

用法示例

  # 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

用法示例

  # 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

用法示例

  # 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

用法示例

  # 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

用法示例

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

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

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

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

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

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

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

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

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

用法示例

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

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

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

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

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

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

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

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

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

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

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

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

用法示例

  # 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

用法示例

  # 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

用法示例

  # 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

用法示例

  # 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-

用法示例

  # 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

用法示例

  # 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

用法示例

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

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

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

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

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

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

用法示例

  # List all available plugins
  oc plugin list

用法示例

  # 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

用法示例

  # 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

用法示例

  # 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

用法示例

  # 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

用法示例

  # 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

用法示例

  # 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

用法示例

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

用法示例

  # 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

用法示例

  # 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

用法示例

  # 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

用法示例

  # 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

用法示例

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

用法示例

  # 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

用法示例

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

用法示例

  # 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

用法示例

  # 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

用法示例

  # 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

用法示例

  # 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>

用法示例

  # 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

用法示例

  # 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

用法示例

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

用法示例

  # 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

用法示例

  # 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

用法示例

  # 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

用法示例

  # 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

用法示例

  # 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

用法示例

  # 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

用法示例

  # 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

用法示例

  # 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 -

用法示例

  # 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

用法示例

  # 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

用法示例

  # 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>

用法示例

  # 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

用法示例

  # 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

用法示例

  # 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