2.5. OpenShift CLI 개발자 명령 참조
이 참조는 OpenShift CLI (oc
) developer 명령에 대한 설명 및 예제 명령을 제공합니다. 관리자 명령의 경우 OpenShift CLI 관리자 명령 참조를 참조하십시오.
oc help
를 실행하여 모든 명령을 나열하거나 oc <command> --help
를 실행하여 특정 명령에 대한 추가 세부 정보를 가져옵니다.
2.5.1. OpenShift CLI (oc) 개발자 명령
2.5.1.1. oc annotate
리소스에서 주석을 업데이트
사용 예
# 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-
2.5.1.2. oc api-resources
서버에서 지원되는 API 리소스를 인쇄
사용 예
# 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=extensions
2.5.1.3. oc api-versions
"group/version" 형식으로 서버에서 지원되는 API 버전을 인쇄
사용 예
# Print the supported API versions oc api-versions
2.5.1.4. oc apply
파일 이름 또는 stdin을 통해 리소스에 구성을 적용합니다.
사용 예
# 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-whitelist=core/v1/ConfigMap
2.5.1.5. oc apply edit-last-applied
리소스/오브젝트의 최신 last-applied-configuration 주석을 편집
사용 예
# 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
2.5.1.6. oc apply set-last-applied
파일의 내용과 일치하도록 라이브 오브젝트에 last-applied-configuration 주석을 설정
사용 예
# 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
2.5.1.7. oc apply view-last-applied
리소스/오브젝트의 최신 last-applied-configuration 주석을 확인합니다.
사용 예
# 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
2.5.1.8. oc attach
실행 중인 컨테이너에 연결
사용 예
# 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
2.5.1.9. oc auth can-i
작업이 허용되는지 확인
사용 예
# 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 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
2.5.1.10. oc auth reconcile
RBAC 역할, 역할 바인딩, 클러스터 역할 및 클러스터 역할 바인딩 오브젝트에 대한 규칙 조정
사용 예
# Reconcile RBAC resources from a file oc auth reconcile -f my-rbac-rules.yaml
2.5.1.11. oc autoscale
배포 구성, 배포, 복제본 세트, 상태 저장 세트 또는 복제 컨트롤러를 자동 스케일링
사용 예
# Auto scale a deployment "foo", with the number of pods between 2 and 10, no target CPU utilization specified so a default autoscaling policy will be used oc autoscale deployment foo --min=2 --max=10 # Auto scale a replication controller "foo", with the number of pods between 1 and 5, target CPU utilization at 80% oc autoscale rc foo --max=5 --cpu-percent=80
2.5.1.12. oc cancel-build
실행 중이거나 보류 중인 빌드 또는 새 빌드를 취소
사용 예
# Cancel the build with the given name oc cancel-build ruby-build-2 # Cancel the named build and print the build logs oc cancel-build ruby-build-2 --dump-logs # Cancel the named build and create a new one with the same parameters oc cancel-build ruby-build-2 --restart # Cancel multiple builds oc cancel-build ruby-build-1 ruby-build-2 ruby-build-3 # Cancel all builds created from the 'ruby-build' build config that are in the 'new' state oc cancel-build bc/ruby-build --state=new
2.5.1.13. oc cluster-info
클러스터 정보 표시
사용 예
# Print the address of the control plane and cluster services oc cluster-info
2.5.1.14. oc cluster-info dump
디버깅 및 진단을 위해 관련 정보 덤프
사용 예
# 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
2.5.1.15. oc completion
지정된 쉘(bash, zsh 또는 fish)의 쉘 완료 코드를 출력합니다.
사용 예
# 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
2.5.1.16. oc config current-context
current-context를 표시
사용 예
# Display the current-context oc config current-context
2.5.1.17. oc config delete-cluster
kubeconfig에서 지정된 클러스터를 삭제
사용 예
# Delete the minikube cluster oc config delete-cluster minikube
2.5.1.18. oc config delete-context
kubeconfig에서 지정된 컨텍스트를 삭제
사용 예
# Delete the context for the minikube cluster oc config delete-context minikube
2.5.1.19. oc config delete-user
kubeconfig에서 지정된 사용자를 삭제
사용 예
# Delete the minikube user oc config delete-user minikube
2.5.1.20. oc config get-clusters
kubeconfig에 정의된 클러스터를 표시
사용 예
# List the clusters that oc knows about oc config get-clusters
2.5.1.21. oc config get-contexts
하나 또는 여러 컨텍스트를 설명
사용 예
# 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
2.5.1.22. oc config get-users
kubeconfig에 정의된 사용자를 표시
사용 예
# List the users that oc knows about oc config get-users
2.5.1.23. oc config rename-context
kubeconfig 파일에서 컨텍스트 이름 변경
사용 예
# Rename the context 'old-name' to 'new-name' in your kubeconfig file oc config rename-context old-name new-name
2.5.1.24. oc config set
kubeconfig 파일에서 개별 값 설정
사용 예
# 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
2.5.1.25. oc config set-cluster
kubeconfig에서 클러스터 항목을 설정
사용 예
# 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
2.5.1.26. oc config set-context
kubeconfig에서 컨텍스트 항목을 설정
사용 예
# Set the user field on the gce context entry without touching other values oc config set-context gce --user=cluster-admin
2.5.1.27. oc config set-credentials
kubeconfig에서 사용자 항목을 설정
사용 예
# 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-
2.5.1.28. oc config unset
kubeconfig 파일에서 개별 값 설정 해제
사용 예
# Unset the current-context oc config unset current-context # Unset namespace in foo context oc config unset contexts.foo.namespace
2.5.1.29. oc config use-context
kubeconfig 파일에서 current-context 설정
사용 예
# Use the context for the minikube cluster oc config use-context minikube
2.5.1.30. oc config view
병합된 kubeconfig 설정 또는 지정된 kubeconfig 파일을 표시
사용 예
# Show merged kubeconfig settings oc config view # Show merged kubeconfig settings and raw certificate data oc config view --raw # Get the password for the e2e user oc config view -o jsonpath='{.users[?(@.name == "e2e")].user.password}'
2.5.1.31. oc cp
컨테이너 간에 파일 및 디렉터리 복사
사용 예
# !!!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
2.5.1.32. oc create
파일 또는 stdin에서 리소스를 생성
사용 예
# 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
2.5.1.33. oc create build
새 빌드를 생성
사용 예
# Create a new build oc create build myapp
2.5.1.34. oc create clusterresourcequota
클러스터 리소스 쿼터를 생성
사용 예
# Create a cluster resource quota limited to 10 pods oc create clusterresourcequota limit-bob --project-annotation-selector=openshift.io/requester=user-bob --hard=pods=10
2.5.1.35. oc create clusterrole
클러스터 역할 생성
사용 예
# 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.extensions # 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"
2.5.1.36. oc create clusterrolebinding
특정 클러스터 역할에 대한 클러스터 역할 바인딩 생성
사용 예
# 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
2.5.1.37. oc create configmap
로컬 파일, 디렉터리 또는 리터럴 값에서 구성 맵을 생성
사용 예
# 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
2.5.1.38. oc create cronjob
지정된 이름으로 cron 작업 생성
사용 예
# 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
2.5.1.39. oc create deployment
지정된 이름으로 배포 생성
사용 예
# 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
2.5.1.40. oc create deploymentconfig
지정된 이미지를 사용하는 기본 옵션으로 배포 구성을 생성
사용 예
# Create an nginx deployment config named my-nginx oc create deploymentconfig my-nginx --image=nginx
2.5.1.41. oc create identity
수동으로 ID를 생성 (자동 생성이 비활성화된 경우에만 필요)
사용 예
# Create an identity with identity provider "acme_ldap" and the identity provider username "adamjones" oc create identity acme_ldap:adamjones
2.5.1.42. oc create imagestream
비어 있는 새 이미지 스트림을 생성
사용 예
# Create a new image stream oc create imagestream mysql
2.5.1.43. oc create imagestreamtag
새 이미지 스트림 태그를 생성
사용 예
# Create a new image stream tag based on an image in a remote registry oc create imagestreamtag mysql:latest --from-image=myregistry.local/mysql/mysql:5.0
2.5.1.44. oc create ingress
지정된 이름으로 수신 생성
사용 예
# 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"
2.5.1.45. oc create job
지정된 이름으로 작업 생성
사용 예
# 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
2.5.1.46. oc create namespace
지정된 이름으로 네임 스페이스를 생성
사용 예
# Create a new namespace named my-namespace oc create namespace my-namespace
2.5.1.47. oc create poddisruptionbudget
지정된 이름으로 Pod 중단 예산 생성
사용 예
# 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%
2.5.1.48. oc create priorityclass
지정된 이름으로 우선순위 클래스 생성
사용 예
# 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"
2.5.1.49. oc create quota
지정된 이름으로 할당량 생성
사용 예
# 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
2.5.1.50. oc create role
단일 규칙으로 역할 생성
사용 예
# 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.extensions # Create a role named "foo" with SubResource specified oc create role foo --verb=get,list,watch --resource=pods,pods/status
2.5.1.51. oc create rolebinding
특정 역할 또는 클러스터 역할에 대한 역할 바인딩 생성
사용 예
# 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
2.5.1.52. oc create route edge
엣지 TLS 종료를 사용하는 경로를 생성
사용 예
# 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
2.5.1.53. oc create route passthrough
패스스루 TLS 종료를 사용하는 경로를 생성
사용 예
# 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
2.5.1.54. oc create route reencrypt
재암호화 TLS 종료를 사용하는 경로를 생성
사용 예
# 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
2.5.1.55. oc create secret docker-registry
Docker 레지스트리와 함께 사용할 시크릿을 생성
사용 예
# 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
2.5.1.56. oc create secret generic
로컬 파일, 디렉터리 또는 리터럴 값에서 시크릿을 생성
사용 예
# 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
2.5.1.57. oc create secret tls
TLS 시크릿을 생성
사용 예
# 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
2.5.1.58. oc create service clusterip
ClusterIP 서비스 생성
사용 예
# 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"
2.5.1.59. oc create service externalname
ExternalName 서비스 생성
사용 예
# Create a new ExternalName service named my-ns oc create service externalname my-ns --external-name bar.com
2.5.1.60. oc create service loadbalancer
LoadBalancer 서비스 생성
사용 예
# Create a new LoadBalancer service named my-lbs oc create service loadbalancer my-lbs --tcp=5678:8080
2.5.1.61. oc create service nodeport
NodePort 서비스 생성
사용 예
# Create a new NodePort service named my-ns oc create service nodeport my-ns --tcp=5678:8080
2.5.1.62. oc create serviceaccount
지정된 이름으로 서비스 계정을 생성
사용 예
# Create a new service account named my-service-account oc create serviceaccount my-service-account
2.5.1.63. oc create token
서비스 계정 토큰 요청
사용 예
# 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
2.5.1.64. oc create user
사용자를 수동으로 생성 (자동 생성이 비활성화된 경우에만 필요)
사용 예
# Create a user with the username "ajones" and the display name "Adam Jones" oc create user ajones --full-name="Adam Jones"
2.5.1.65. oc create useridentitymapping
ID를 사용자에게 수동으로 매핑
사용 예
# Map the identity "acme_ldap:adamjones" to the user "ajones" oc create useridentitymapping acme_ldap:adamjones ajones
2.5.1.66. oc debug
디버깅을 위해 Pod의 새 인스턴스를 시작
사용 예
# 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
2.5.1.67. oc delete
파일 이름, stdin, 리소스 및 이름별 또는 리소스 및 레이블 선택기별 리소스 삭제
사용 예
# 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 apply -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
2.5.1.68. oc describe
특정 리소스 또는 리소스 그룹의 세부 정보를 표시
사용 예
# 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
2.5.1.69. oc diff
적용된 버전에 대한 라이브 버전 diff the live version against a would-be applied version
사용 예
# Diff resources included in pod.json oc diff -f pod.json # Diff file read from stdin cat service.yaml | oc diff -f -
2.5.1.70. oc edit
서버에서 리소스를 편집
사용 예
# 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'
2.5.1.71. oc exec
컨테이너에서 명령을 실행
사용 예
# 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
2.5.1.72. oc explain
리소스에 대한 문서 가져오기
사용 예
# 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
2.5.1.73. oc expose
복제된 애플리케이션을 서비스 또는 경로로 노출
사용 예
# 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
2.5.1.74. oc extract
시크릿 또는 구성 맵을 디스크에 추출
사용 예
# 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
2.5.1.75. oc get
리소스를 하나 이상 표시
사용 예
# 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
2.5.1.76. oc idle
확장 가능한 리소스를 유휴 상태로 설정
사용 예
# Idle the scalable controllers associated with the services listed in to-idle.txt $ oc idle --resource-names-file to-idle.txt
2.5.1.77. oc image append
이미지에 레이어를 추가하고 레지스트리에 푸시
사용 예
# 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: Wildcard filter is not supported with append. Pass a single os/arch to append oc image append --from docker.io/library/busybox:latest --filter-by-os=linux/s390x --to myregistry.com/myimage:latest layer.tar.gz
2.5.1.78. oc image extract
이미지에서 파일 시스템으로 파일을 복사
사용 예
# 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:]
2.5.1.79. oc image info
이미지에 대한 정보 표시
사용 예
# 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
2.5.1.80. oc image mirror
한 저장소에서 다른 저장소로 이미지를 미러링
사용 예
# 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=.*
2.5.1.81. oc import-image
컨테이너 이미지 레지스트리에서 이미지를 가져옵니다
사용 예
# Import tag latest into a new image stream oc import-image mystream --from=registry.io/repo/image:latest --confirm # Update imported data for tag latest in an already existing image stream oc import-image mystream # Update imported data for tag stable in an already existing image stream oc import-image mystream:stable # Update imported data for all tags in an existing image stream oc import-image mystream --all # Import all tags into a new image stream oc import-image mystream --from=registry.io/repo/image --all --confirm # Import all tags into a new image stream using a custom timeout oc --request-timeout=5m import-image mystream --from=registry.io/repo/image --all --confirm
2.5.1.82. oc kustomize
디렉터리 또는 URL에서 kustomization 대상을 빌드
사용 예
# 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
2.5.1.83. oc label
리소스에서 레이블을 업데이트
사용 예
# 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-
2.5.1.84. oc login
서버에 로그인
사용 예
# Log in interactively oc login --username=myuser # Log in to the given server with the given certificate authority file oc login localhost:8443 --certificate-authority=/path/to/cert.crt # Log in to the given server with the given credentials (will not prompt interactively) oc login localhost:8443 --username=myuser --password=mypass
2.5.1.85. oc logout
현재 서버 세션을 종료
사용 예
# Log out oc logout
2.5.1.86. oc logs
Pod에서 컨테이너의 로그를 출력
사용 예
# 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
2.5.1.87. oc new-app
새 애플리케이션을 생성
사용 예
# List all local templates and image streams that can be used to create an app oc new-app --list # Create an application based on the source code in the current git repository (with a public remote) and a container image oc new-app . --image=registry/repo/langimage # Create an application myapp with Docker based build strategy expecting binary input oc new-app --strategy=docker --binary --name myapp # Create a Ruby application based on the provided [image]~[source code] combination oc new-app centos/ruby-25-centos7~https://github.com/sclorg/ruby-ex.git # Use the public container registry MySQL image to create an app. Generated artifacts will be labeled with db=mysql oc new-app mysql MYSQL_USER=user MYSQL_PASSWORD=pass MYSQL_DATABASE=testdb -l db=mysql # Use a MySQL image in a private registry to create an app and override application artifacts' names oc new-app --image=myregistry.com/mycompany/mysql --name=private # Create an application from a remote repository using its beta4 branch oc new-app https://github.com/openshift/ruby-hello-world#beta4 # Create an application based on a stored template, explicitly setting a parameter value oc new-app --template=ruby-helloworld-sample --param=MYSQL_USER=admin # Create an application from a remote repository and specify a context directory oc new-app https://github.com/youruser/yourgitrepo --context-dir=src/build # Create an application from a remote private repository and specify which existing secret to use oc new-app https://github.com/youruser/yourgitrepo --source-secret=yoursecret # Create an application based on a template file, explicitly setting a parameter value oc new-app --file=./example/myapp/template.json --param=MYSQL_USER=admin # Search all templates, image streams, and container images for the ones that match "ruby" oc new-app --search ruby # Search for "ruby", but only in stored templates (--template, --image-stream and --image # can be used to filter search results) oc new-app --search --template=ruby # Search for "ruby" in stored templates and print the output as YAML oc new-app --search --template=ruby --output=yaml
2.5.1.88. oc new-build
새 빌드 구성을 생성
사용 예
# Create a build config based on the source code in the current git repository (with a public # remote) and a container image oc new-build . --image=repo/langimage # Create a NodeJS build config based on the provided [image]~[source code] combination oc new-build centos/nodejs-8-centos7~https://github.com/sclorg/nodejs-ex.git # Create a build config from a remote repository using its beta2 branch oc new-build https://github.com/openshift/ruby-hello-world#beta2 # Create a build config using a Dockerfile specified as an argument oc new-build -D $'FROM centos:7\nRUN yum install -y httpd' # Create a build config from a remote repository and add custom environment variables oc new-build https://github.com/openshift/ruby-hello-world -e RACK_ENV=development # Create a build config from a remote private repository and specify which existing secret to use oc new-build https://github.com/youruser/yourgitrepo --source-secret=yoursecret # Create a build config from a remote repository and inject the npmrc into a build oc new-build https://github.com/openshift/ruby-hello-world --build-secret npmrc:.npmrc # Create a build config from a remote repository and inject environment data into a build oc new-build https://github.com/openshift/ruby-hello-world --build-config-map env:config # Create a build config that gets its input from a remote repository and another container image oc new-build https://github.com/openshift/ruby-hello-world --source-image=openshift/jenkins-1-centos7 --source-image-path=/var/lib/jenkins:tmp
2.5.1.89. oc new-project
새 프로젝트를 요청
사용 예
# Create a new project with minimal information oc new-project web-team-dev # Create a new project with a display name and description oc new-project web-team-dev --display-name="Web Team Development" --description="Development project for the web team."
2.5.1.90. oc observe
리소스에 대한 변경 사항을 관찰하고 이에 대응합니다(시험적)
사용 예
# 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 namespaces -l regist-dns=true --template '{ .spec.clusterIP }' -- register_dns.sh
2.5.1.91. oc patch
리소스의 필드 업데이트
사용 예
# 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}}'
2.5.1.92. oc plugin list
사용자 PATH의 모든 표시되는 플러그인 실행 파일 나열
사용 예
# List all available plugins oc plugin list
2.5.1.93. oc policy add-role-to-user
현재 프로젝트의 사용자 또는 서비스 계정에 역할을 추가
사용 예
# 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
2.5.1.94. oc policy scc-review
Pod를 생성할 수 있는 서비스 계정을 확인
사용 예
# 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
2.5.1.95. oc policy scc-subject-review
사용자 또는 서비스 계정의 Pod 생성 가능 여부 확인
사용 예
# 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
2.5.1.96. oc port-forward
Pod에 하나 이상의 로컬 포트를 전달
사용 예
# 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
2.5.1.97. oc process
템플릿을 리소스 목록으로 처리
사용 예
# Convert the template.json file into a resource list and pass to create oc process -f template.json | oc create -f - # Process a file locally instead of contacting the server oc process -f template.json --local -o yaml # Process template while passing a user-defined label oc process -f template.json -l name=mytemplate # Convert a stored template into a resource list oc process foo # Convert a stored template into a resource list by setting/overriding parameter values oc process foo PARM1=VALUE1 PARM2=VALUE2 # Convert a template stored in different namespace into a resource list oc process openshift//foo # Convert template.json into a resource list cat template.json | oc process -f -
2.5.1.98. oc project
다른 프로젝트로 전환
사용 예
# Switch to the 'myapp' project oc project myapp # Display the project currently in use oc project
2.5.1.99. oc projects
기존 프로젝트를 표시
사용 예
# List all projects oc projects
2.5.1.100. oc proxy
Kubernetes API 서버에 대해 프록시를 실행
사용 예
# 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
2.5.1.101. oc registry info
통합 레지스트리에 대한 정보를 인쇄
사용 예
# Display information about the integrated registry oc registry info
2.5.1.102. oc registry login
통합 레지스트리에 로그인
사용 예
# Log in to the integrated registry oc registry login # Log in to different registry using BASIC auth credentials oc registry login --registry quay.io/myregistry --auth-basic=USER:PASS
2.5.1.103. oc replace
리소스를 파일 이름 또는 stdin으로 교체
사용 예
# Replace a pod using the data in pod.json oc replace -f ./pod.json # Replace a pod based on the JSON passed into stdin cat pod.json | oc replace -f - # Update a single-container pod's image version (tag) to v4 oc get pod mypod -o yaml | sed 's/\(image: myimage\):.*$/\1:v4/' | oc replace -f - # Force replace, delete and then re-create the resource oc replace --force -f ./pod.json
2.5.1.104. oc rollback
애플리케이션의 일부를 이전 배포로 되돌립니다
사용 예
# 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
2.5.1.105. oc rollout cancel
진행 중인 배포를 취소
사용 예
# Cancel the in-progress deployment based on 'nginx' oc rollout cancel dc/nginx
2.5.1.106. oc rollout history
롤아웃 내역 보기
사용 예
# 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
2.5.1.107. oc rollout latest
트리거의 최신 상태로 배포 구성에 대한 새 롤아웃 시작
사용 예
# 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
2.5.1.108. oc rollout pause
제공된 리소스를 일시 중지됨으로 표시
사용 예
# 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
2.5.1.109. oc rollout restart
리소스를 다시 시작
사용 예
# 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
2.5.1.110. oc rollout resume
일시 중지된 리소스 재개
사용 예
# Resume an already paused deployment oc rollout resume dc/nginx
2.5.1.111. oc rollout retry
가장 최근에 실패한 롤아웃 재시도
사용 예
# 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
2.5.1.112. oc rollout status
롤아웃 상태를 표시
사용 예
# Watch the status of the latest rollout oc rollout status dc/nginx
2.5.1.113. oc rollout undo
이전 롤아웃 실행 취소
사용 예
# 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
2.5.1.114. oc rsh
컨테이너에서 쉘 세션 시작
사용 예
# 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/sheduled
2.5.1.115. oc rsync
로컬 파일 시스템과 Pod 간 파일 복사
사용 예
# 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
2.5.1.116. oc run
클러스터에서 특정 이미지 실행
사용 예
# 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>
2.5.1.117. oc scale
배포, 복제본 세트 또는 복제 컨트롤러의 새 크기 설정
사용 예
# 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
2.5.1.118. oc secrets link
서비스 계정에 시크릿 연결
사용 예
# 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
2.5.1.119. oc secrets unlink
서비스 계정에서 시크릿 분리
사용 예
# Unlink a secret currently associated with a service account oc secrets unlink serviceaccount-name secret-name another-secret-name ...
2.5.1.120. oc set build-hook
빌드 구성에서 빌드 후크를 업데이트
사용 예
# Clear post-commit hook on a build config oc set build-hook bc/mybuild --post-commit --remove # Set the post-commit hook to execute a test suite using a new entrypoint oc set build-hook bc/mybuild --post-commit --command -- /bin/bash -c /var/lib/test-image.sh # Set the post-commit hook to execute a shell script oc set build-hook bc/mybuild --post-commit --script="/var/lib/test-image.sh param1 param2 && /var/lib/done.sh"
2.5.1.121. oc set build-secret
빌드 구성에서 빌드 보안을 업데이트
사용 예
# Clear the push secret on a build config oc set build-secret --push --remove bc/mybuild # Set the pull secret on a build config oc set build-secret --pull bc/mybuild mysecret # Set the push and pull secret on a build config oc set build-secret --push --pull bc/mybuild mysecret # Set the source secret on a set of build configs matching a selector oc set build-secret --source -l app=myapp gitsecret
2.5.1.122. oc set data
구성 맵 또는 시크릿 내의 데이터를 업데이트
사용 예
# 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
2.5.1.123. oc set deployment-hook
배포 구성에서 배포 후크를 업데이트
사용 예
# Clear pre and post hooks on a deployment config oc set deployment-hook dc/myapp --remove --pre --post # Set the pre deployment hook to execute a db migration command for an application # using the data volume from the application oc set deployment-hook dc/myapp --pre --volumes=data -- /var/lib/migrate-db.sh # Set a mid deployment hook along with additional environment variables oc set deployment-hook dc/myapp --mid --volumes=data -e VAR1=value1 -e VAR2=value2 -- /var/lib/prepare-deploy.sh
2.5.1.124. oc set env
Pod 템플릿에서 환경 변수를 업데이트
사용 예
# 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
2.5.1.125. oc set image
Pod 템플릿 이미지를 업데이트
사용 예
# Set a deployment configs'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 configs'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
2.5.1.126. oc set image-lookup
애플리케이션을 배포할 때 이미지가 해결되는 방법 변경
사용 예
# 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
2.5.1.127. oc set probe
Pod 템플릿에서 프로브 업데이트
사용 예
# 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
2.5.1.128. oc set resources
Pod 템플릿을 사용하여 오브젝트에서 리소스 요청/제한 업데이트
사용 예
# 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
2.5.1.129. oc set route-backends
경로의 백엔드 업데이트
사용 예
# 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
2.5.1.130. oc set selector
리소스에 선택기 설정
사용 예
# 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 -
2.5.1.131. oc set serviceaccount
리소스의 서비스 계정을 업데이트
사용 예
# 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
2.5.1.132. oc set subject
역할 바인딩 또는 클러스터 역할 바인딩에서 사용자, 그룹 또는 서비스 계정을 업데이트
사용 예
# 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
2.5.1.133. oc set triggers
하나 이상의 오브젝트에서 트리거 업데이트
사용 예
# Print the triggers on the deployment config 'myapp' oc set triggers dc/myapp # Set all triggers to manual oc set triggers dc/myapp --manual # Enable all automatic triggers oc set triggers dc/myapp --auto # Reset the GitHub webhook on a build to a new, generated secret oc set triggers bc/webapp --from-github oc set triggers bc/webapp --from-webhook # Remove all triggers oc set triggers bc/webapp --remove-all # Stop triggering on config change oc set triggers dc/myapp --from-config --remove # Add an image trigger to a build config oc set triggers bc/webapp --from-image=namespace1/image:latest # Add an image trigger to a stateful set on the main container oc set triggers statefulset/db --from-image=namespace1/image:latest -c main
2.5.1.134. oc set volumes
Pod 템플릿에서 볼륨 업데이트
사용 예
# 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>
2.5.1.135. oc start-build
새 빌드를 시작
사용 예
# Starts build from build config "hello-world" oc start-build hello-world # Starts build from a previous build "hello-world-1" oc start-build --from-build=hello-world-1 # Use the contents of a directory as build input oc start-build hello-world --from-dir=src/ # Send the contents of a Git repository to the server from tag 'v2' oc start-build hello-world --from-repo=../hello-world --commit=v2 # Start a new build for build config "hello-world" and watch the logs until the build # completes or fails oc start-build hello-world --follow # Start a new build for build config "hello-world" and wait until the build completes. It # exits with a non-zero return code if the build fails oc start-build hello-world --wait
2.5.1.136. oc status
현재 프로젝트의 개요를 표시
사용 예
# See an overview of the current project oc status # Export the overview of the current project in an svg file oc status -o dot | dot -T svg -o project.svg # See an overview of the current project including details for any identified issues oc status --suggest
2.5.1.137. oc tag
기존 이미지를 이미지 스트림에 태깅
사용 예
# 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 # Remove the specified spec tag from an image stream oc tag openshift/origin-control-plane:latest -d
2.5.1.138. oc version
클라이언트 및 서버 버전 정보를 인쇄
사용 예
# 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
2.5.1.139. oc wait
실험적: 하나 이상의 리소스에서 특정 조건을 대기
사용 예
# 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
2.5.1.140. oc whoami
현재 세션에 대한 정보를 반환
사용 예
# Display the currently authenticated user oc whoami