Chapter 2. OpenShift CLI (oc) 2.1. Getting started with the OpenShift CLI 2.1.1. About the OpenShift CLI With the OpenShift command-line interface (CLI), the oc command, you can create applications and manage OpenShift Container Platform projects from a terminal. The OpenShift CLI is ideal in the following situations: Working directly with project source code Scripting OpenShift Container Platform operations Managing projects while restricted by bandwidth resources and the web console is unavailable 2.1.2. Installing the OpenShift CLI You can install the OpenShift CLI ( oc ) either by downloading the binary or by using an RPM. 2.1.2.1. Installing the OpenShift CLI by downloading the binary You can install the OpenShift CLI ( oc ) to interact with OpenShift Container Platform from a command-line interface. You can install oc on Linux, Windows, or macOS. Important If you installed an earlier version of oc , you cannot use it to complete all of the commands in OpenShift Container Platform 4.10. Download and install the new version of oc . Installing the OpenShift CLI on Linux You can install the OpenShift CLI ( oc ) binary on Linux by using the following procedure. Procedure Navigate to the OpenShift Container Platform downloads page on the Red Hat Customer Portal. Select the appropriate version in the Version drop-down menu. Click Download Now to the OpenShift v4.10 Linux Client entry and save the file. Unpack the archive: USD tar xvf <file> Place the oc binary in a directory that is on your PATH . To check your PATH , execute the following command: USD echo USDPATH After you install the OpenShift CLI, it is available using the oc command: USD oc <command> Installing the OpenShift CLI on Windows You can install the OpenShift CLI ( oc ) binary on Windows by using the following procedure. Procedure Navigate to the OpenShift Container Platform downloads page on the Red Hat Customer Portal. Select the appropriate version in the Version drop-down menu. Click Download Now to the OpenShift v4.10 Windows Client entry and save the file. Unzip the archive with a ZIP program. Move the oc binary to a directory that is on your PATH . To check your PATH , open the command prompt and execute the following command: C:\> path After you install the OpenShift CLI, it is available using the oc command: C:\> oc <command> Installing the OpenShift CLI on macOS You can install the OpenShift CLI ( oc ) binary on macOS by using the following procedure. Procedure Navigate to the OpenShift Container Platform downloads page on the Red Hat Customer Portal. Select the appropriate version in the Version drop-down menu. Click Download Now to the OpenShift v4.10 MacOSX Client entry and save the file. Unpack and unzip the archive. Move the oc binary to a directory on your PATH. To check your PATH , open a terminal and execute the following command: USD echo USDPATH After you install the OpenShift CLI, it is available using the oc command: USD oc <command> 2.1.2.2. Installing the OpenShift CLI by using the web console You can install the OpenShift CLI ( oc ) to interact with OpenShift Container Platform from a web console. You can install oc on Linux, Windows, or macOS. Important If you installed an earlier version of oc , you cannot use it to complete all of the commands in OpenShift Container Platform 4.10. Download and install the new version of oc . 2.1.2.2.1. Installing the OpenShift CLI on Linux using the web console You can install the OpenShift CLI ( oc ) binary on Linux by using the following procedure. Procedure From the web console, click ? . Click Command Line Tools . Select appropriate oc binary for your Linux platform, and then click Download oc for Linux . Save the file. Unpack the archive. USD tar xvf <file> Move the oc binary to a directory that is on your PATH . To check your PATH , execute the following command: USD echo USDPATH After you install the OpenShift CLI, it is available using the oc command: USD oc <command> 2.1.2.2.2. Installing the OpenShift CLI on Windows using the web console You can install the OpenShift CLI ( oc ) binary on Winndows by using the following procedure. Procedure From the web console, click ? . Click Command Line Tools . Select the oc binary for Windows platform, and then click Download oc for Windows for x86_64 . Save the file. Unzip the archive with a ZIP program. Move the oc binary to a directory that is on your PATH . To check your PATH , open the command prompt and execute the following command: C:\> path After you install the OpenShift CLI, it is available using the oc command: C:\> oc <command> 2.1.2.2.3. Installing the OpenShift CLI on macOS using the web console You can install the OpenShift CLI ( oc ) binary on macOS by using the following procedure. Procedure From the web console, click ? . Click Command Line Tools . Select the oc binary for macOS platform, and then click Download oc for Mac for x86_64 . Save the file. Unpack and unzip the archive. Move the oc binary to a directory on your PATH. To check your PATH , open a terminal and execute the following command: USD echo USDPATH After you install the OpenShift CLI, it is available using the oc command: USD oc <command> 2.1.2.3. Installing the OpenShift CLI by using an RPM For Red Hat Enterprise Linux (RHEL), you can install the OpenShift CLI ( oc ) as an RPM if you have an active OpenShift Container Platform subscription on your Red Hat account. Prerequisites Must have root or sudo privileges. Procedure Register with Red Hat Subscription Manager: # subscription-manager register Pull the latest subscription data: # subscription-manager refresh List the available subscriptions: # subscription-manager list --available --matches '*OpenShift*' In the output for the command, find the pool ID for an OpenShift Container Platform subscription and attach the subscription to the registered system: # subscription-manager attach --pool=<pool_id> Enable the repositories required by OpenShift Container Platform 4.10. For Red Hat Enterprise Linux 8: # subscription-manager repos --enable="rhocp-4.10-for-rhel-8-x86_64-rpms" For Red Hat Enterprise Linux 7: # subscription-manager repos --enable="rhel-7-server-ose-4.10-rpms" Install the openshift-clients package: # yum install openshift-clients After you install the CLI, it is available using the oc command: USD oc <command> 2.1.2.4. Installing the OpenShift CLI by using Homebrew For macOS, you can install the OpenShift CLI ( oc ) by using the Homebrew package manager. Prerequisites You must have Homebrew ( brew ) installed. Procedure Run the following command to install the openshift-cli package: USD brew install openshift-cli 2.1.3. Logging in to the OpenShift CLI You can log in to the OpenShift CLI ( oc ) to access and manage your cluster. Prerequisites You must have access to an OpenShift Container Platform cluster. You must have installed the OpenShift CLI ( oc ). Note To access a cluster that is accessible only over an HTTP proxy server, you can set the HTTP_PROXY , HTTPS_PROXY and NO_PROXY variables. These environment variables are respected by the oc CLI so that all communication with the cluster goes through the HTTP proxy. Authentication headers are sent only when using HTTPS transport. Procedure Enter the oc login command and pass in a user name: USD oc login -u user1 When prompted, enter the required information: Example output Server [https://localhost:8443]: https://openshift.example.com:6443 1 The server uses a certificate signed by an unknown authority. You can bypass the certificate check, but any data you send to the server could be intercepted by others. Use insecure connections? (y/n): y 2 Authentication required for https://openshift.example.com:6443 (openshift) Username: user1 Password: 3 Login successful. You don't have any projects. You can try to create a new project, by running oc new-project <projectname> Welcome! See 'oc help' to get started. 1 Enter the OpenShift Container Platform server URL. 2 Enter whether to use insecure connections. 3 Enter the user's password. Note If you are logged in to the web console, you can generate an oc login command that includes your token and server information. You can use the command to log in to the OpenShift Container Platform CLI without the interactive prompts. To generate the command, select Copy login command from the username drop-down menu at the top right of the web console. You can now create a project or issue other commands for managing your cluster. 2.1.4. Using the OpenShift CLI Review the following sections to learn how to complete common tasks using the CLI. 2.1.4.1. Creating a project Use the oc new-project command to create a new project. USD oc new-project my-project Example output Now using project "my-project" on server "https://openshift.example.com:6443". 2.1.4.2. Creating a new app Use the oc new-app command to create a new application. USD oc new-app https://github.com/sclorg/cakephp-ex Example output --> Found image 40de956 (9 days old) in imagestream "openshift/php" under tag "7.2" for "php" ... Run 'oc status' to view your app. 2.1.4.3. Viewing pods Use the oc get pods command to view the pods for the current project. Note When you run oc inside a pod and do not specify a namespace, the namespace of the pod is used by default. USD oc get pods -o wide Example output NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE cakephp-ex-1-build 0/1 Completed 0 5m45s 10.131.0.10 ip-10-0-141-74.ec2.internal <none> cakephp-ex-1-deploy 0/1 Completed 0 3m44s 10.129.2.9 ip-10-0-147-65.ec2.internal <none> cakephp-ex-1-ktz97 1/1 Running 0 3m33s 10.128.2.11 ip-10-0-168-105.ec2.internal <none> 2.1.4.4. Viewing pod logs Use the oc logs command to view logs for a particular pod. USD oc logs cakephp-ex-1-deploy Example output --> Scaling cakephp-ex-1 to 1 --> Success 2.1.4.5. Viewing the current project Use the oc project command to view the current project. USD oc project Example output Using project "my-project" on server "https://openshift.example.com:6443". 2.1.4.6. Viewing the status for the current project Use the oc status command to view information about the current project, such as services, deployments, and build configs. USD oc status Example output In project my-project on server https://openshift.example.com:6443 svc/cakephp-ex - 172.30.236.80 ports 8080, 8443 dc/cakephp-ex deploys istag/cakephp-ex:latest <- bc/cakephp-ex source builds https://github.com/sclorg/cakephp-ex on openshift/php:7.2 deployment #1 deployed 2 minutes ago - 1 pod 3 infos identified, use 'oc status --suggest' to see details. 2.1.4.7. Listing supported API resources Use the oc api-resources command to view the list of supported API resources on the server. USD oc api-resources Example output NAME SHORTNAMES APIGROUP NAMESPACED KIND bindings true Binding componentstatuses cs false ComponentStatus configmaps cm true ConfigMap ... 2.1.5. Getting help You can get help with CLI commands and OpenShift Container Platform resources in the following ways. Use oc help to get a list and description of all available CLI commands: Example: Get general help for the CLI USD oc help Example output OpenShift Client This client helps you develop, build, deploy, and run your applications on any OpenShift or Kubernetes compatible platform. It also includes the administrative commands for managing a cluster under the 'adm' subcommand. Usage: oc [flags] Basic Commands: login Log in to a server new-project Request a new project new-app Create a new application ... Use the --help flag to get help about a specific CLI command: Example: Get help for the oc create command USD oc create --help Example output Create a resource by filename or stdin JSON and YAML formats are accepted. Usage: oc create -f FILENAME [flags] ... Use the oc explain command to view the description and fields for a particular resource: Example: View documentation for the Pod resource USD oc explain pods Example output KIND: Pod VERSION: v1 DESCRIPTION: Pod is a collection of containers that can run on a host. This resource is created by clients and scheduled onto hosts. FIELDS: apiVersion <string> APIVersion defines the versioned schema of this representation of an object. Servers should convert recognized schemas to the latest internal value, and may reject unrecognized values. More info: https://git.k8s.io/community/contributors/devel/api-conventions.md#resources ... 2.1.6. Logging out of the OpenShift CLI You can log out the OpenShift CLI to end your current session. Use the oc logout command. USD oc logout Example output Logged "user1" out on "https://openshift.example.com" This deletes the saved authentication token from the server and removes it from your configuration file. 2.2. Configuring the OpenShift CLI 2.2.1. Enabling tab completion You can enable tab completion for the Bash or Zsh shells. 2.2.1.1. Enabling tab completion for Bash After you install the OpenShift CLI ( oc ), you can enable tab completion to automatically complete oc commands or suggest options when you press Tab. The following procedure enables tab completion for the Bash shell. Prerequisites You must have the OpenShift CLI ( oc ) installed. You must have the package bash-completion installed. Procedure Save the Bash completion code to a file: USD oc completion bash > oc_bash_completion Copy the file to /etc/bash_completion.d/ : USD sudo cp oc_bash_completion /etc/bash_completion.d/ You can also save the file to a local directory and source it from your .bashrc file instead. Tab completion is enabled when you open a new terminal. 2.2.1.2. Enabling tab completion for Zsh After you install the OpenShift CLI ( oc ), you can enable tab completion to automatically complete oc commands or suggest options when you press Tab. The following procedure enables tab completion for the Zsh shell. Prerequisites You must have the OpenShift CLI ( oc ) installed. Procedure To add tab completion for oc to your .zshrc file, run the following command: USD cat >>~/.zshrc<<EOF if [ USDcommands[oc] ]; then source <(oc completion zsh) compdef _oc oc fi EOF Tab completion is enabled when you open a new terminal. 2.3. Managing CLI profiles A CLI configuration file allows you to configure different profiles, or contexts, for use with the CLI tools overview . A context consists of user authentication and OpenShift Container Platform server information associated with a nickname . 2.3.1. About switches between CLI profiles Contexts allow you to easily switch between multiple users across multiple OpenShift Container Platform servers, or clusters, when using CLI operations. Nicknames make managing CLI configurations easier by providing short-hand references to contexts, user credentials, and cluster details. After logging in with the CLI for the first time, OpenShift Container Platform creates a ~/.kube/config file if one does not already exist. As more authentication and connection details are provided to the CLI, either automatically during an oc login operation or by manually configuring CLI profiles, the updated information is stored in the configuration file: CLI config file apiVersion: v1 clusters: 1 - cluster: insecure-skip-tls-verify: true server: https://openshift1.example.com:8443 name: openshift1.example.com:8443 - cluster: insecure-skip-tls-verify: true server: https://openshift2.example.com:8443 name: openshift2.example.com:8443 contexts: 2 - context: cluster: openshift1.example.com:8443 namespace: alice-project user: alice/openshift1.example.com:8443 name: alice-project/openshift1.example.com:8443/alice - context: cluster: openshift1.example.com:8443 namespace: joe-project user: alice/openshift1.example.com:8443 name: joe-project/openshift1/alice current-context: joe-project/openshift1.example.com:8443/alice 3 kind: Config preferences: {} users: 4 - name: alice/openshift1.example.com:8443 user: token: xZHd2piv5_9vQrg-SKXRJ2Dsl9SceNJdhNTljEKTb8k 1 The clusters section defines connection details for OpenShift Container Platform clusters, including the address for their master server. In this example, one cluster is nicknamed openshift1.example.com:8443 and another is nicknamed openshift2.example.com:8443 . 2 This contexts section defines two contexts: one nicknamed alice-project/openshift1.example.com:8443/alice , using the alice-project project, openshift1.example.com:8443 cluster, and alice user, and another nicknamed joe-project/openshift1.example.com:8443/alice , using the joe-project project, openshift1.example.com:8443 cluster and alice user. 3 The current-context parameter shows that the joe-project/openshift1.example.com:8443/alice context is currently in use, allowing the alice user to work in the joe-project project on the openshift1.example.com:8443 cluster. 4 The users section defines user credentials. In this example, the user nickname alice/openshift1.example.com:8443 uses an access token. The CLI can support multiple configuration files which are loaded at runtime and merged together along with any override options specified from the command line. After you are logged in, you can use the oc status or oc project command to verify your current working environment: Verify the current working environment USD oc status Example output oc status In project Joe's Project (joe-project) service database (172.30.43.12:5434 -> 3306) database deploys docker.io/openshift/mysql-55-centos7:latest #1 deployed 25 minutes ago - 1 pod service frontend (172.30.159.137:5432 -> 8080) frontend deploys origin-ruby-sample:latest <- builds https://github.com/openshift/ruby-hello-world with joe-project/ruby-20-centos7:latest #1 deployed 22 minutes ago - 2 pods To see more information about a service or deployment, use 'oc describe service <name>' or 'oc describe dc <name>'. You can use 'oc get all' to see lists of each of the types described in this example. List the current project USD oc project Example output Using project "joe-project" from context named "joe-project/openshift1.example.com:8443/alice" on server "https://openshift1.example.com:8443". You can run the oc login command again and supply the required information during the interactive process, to log in using any other combination of user credentials and cluster details. A context is constructed based on the supplied information if one does not already exist. If you are already logged in and want to switch to another project the current user already has access to, use the oc project command and enter the name of the project: USD oc project alice-project Example output Now using project "alice-project" on server "https://openshift1.example.com:8443". At any time, you can use the oc config view command to view your current CLI configuration, as seen in the output. Additional CLI configuration commands are also available for more advanced usage. Note If you have access to administrator credentials but are no longer logged in as the default system user system:admin , you can log back in as this user at any time as long as the credentials are still present in your CLI config file. The following command logs in and switches to the default project: USD oc login -u system:admin -n default 2.3.2. Manual configuration of CLI profiles Note This section covers more advanced usage of CLI configurations. In most situations, you can use the oc login and oc project commands to log in and switch between contexts and projects. If you want to manually configure your CLI config files, you can use the oc config command instead of directly modifying the files. The oc config command includes a number of helpful sub-commands for this purpose: Table 2.1. CLI configuration subcommands Subcommand Usage set-cluster Sets a cluster entry in the CLI config file. If the referenced cluster nickname already exists, the specified information is merged in. USD oc config set-cluster <cluster_nickname> [--server=<master_ip_or_fqdn>] [--certificate-authority=<path/to/certificate/authority>] [--api-version=<apiversion>] [--insecure-skip-tls-verify=true] set-context Sets a context entry in the CLI config file. If the referenced context nickname already exists, the specified information is merged in. USD oc config set-context <context_nickname> [--cluster=<cluster_nickname>] [--user=<user_nickname>] [--namespace=<namespace>] use-context Sets the current context using the specified context nickname. USD oc config use-context <context_nickname> set Sets an individual value in the CLI config file. USD oc config set <property_name> <property_value> The <property_name> is a dot-delimited name where each token represents either an attribute name or a map key. The <property_value> is the new value being set. unset Unsets individual values in the CLI config file. USD oc config unset <property_name> The <property_name> is a dot-delimited name where each token represents either an attribute name or a map key. view Displays the merged CLI configuration currently in use. USD oc config view Displays the result of the specified CLI config file. USD oc config view --config=<specific_filename> Example usage Log in as a user that uses an access token. This token is used by the alice user: USD oc login https://openshift1.example.com --token=ns7yVhuRNpDM9cgzfhhxQ7bM5s7N2ZVrkZepSRf4LC0 View the cluster entry automatically created: USD oc config view Example output apiVersion: v1 clusters: - cluster: insecure-skip-tls-verify: true server: https://openshift1.example.com name: openshift1-example-com contexts: - context: cluster: openshift1-example-com namespace: default user: alice/openshift1-example-com name: default/openshift1-example-com/alice current-context: default/openshift1-example-com/alice kind: Config preferences: {} users: - name: alice/openshift1.example.com user: token: ns7yVhuRNpDM9cgzfhhxQ7bM5s7N2ZVrkZepSRf4LC0 Update the current context to have users log in to the desired namespace: USD oc config set-context `oc config current-context` --namespace=<project_name> Examine the current context, to confirm that the changes are implemented: USD oc whoami -c All subsequent CLI operations uses the new context, unless otherwise specified by overriding CLI options or until the context is switched. 2.3.3. Load and merge rules You can follow these rules, when issuing CLI operations for the loading and merging order for the CLI configuration: CLI config files are retrieved from your workstation, using the following hierarchy and merge rules: If the --config option is set, then only that file is loaded. The flag is set once and no merging takes place. If the USDKUBECONFIG environment variable is set, then it is used. The variable can be a list of paths, and if so the paths are merged together. When a value is modified, it is modified in the file that defines the stanza. When a value is created, it is created in the first file that exists. If no files in the chain exist, then it creates the last file in the list. Otherwise, the ~/.kube/config file is used and no merging takes place. The context to use is determined based on the first match in the following flow: The value of the --context option. The current-context value from the CLI config file. An empty value is allowed at this stage. The user and cluster to use is determined. At this point, you may or may not have a context; they are built based on the first match in the following flow, which is run once for the user and once for the cluster: The value of the --user for user name and --cluster option for cluster name. If the --context option is present, then use the context's value. An empty value is allowed at this stage. The actual cluster information to use is determined. At this point, you may or may not have cluster information. Each piece of the cluster information is built based on the first match in the following flow: The values of any of the following command line options: --server , --api-version --certificate-authority --insecure-skip-tls-verify If cluster information and a value for the attribute is present, then use it. If you do not have a server location, then there is an error. The actual user information to use is determined. Users are built using the same rules as clusters, except that you can only have one authentication technique per user; conflicting techniques cause the operation to fail. Command line options take precedence over config file values. Valid command line options are: --auth-path --client-certificate --client-key --token For any information that is still missing, default values are used and prompts are given for additional information. 2.4. Extending the OpenShift CLI with plugins You can write and install plugins to build on the default oc commands, allowing you to perform new and more complex tasks with the OpenShift Container Platform CLI. 2.4.1. Writing CLI plugins You can write a plugin for the OpenShift Container Platform CLI in any programming language or script that allows you to write command-line commands. Note that you can not use a plugin to overwrite an existing oc command. Procedure This procedure creates a simple Bash plugin that prints a message to the terminal when the oc foo command is issued. Create a file called oc-foo . When naming your plugin file, keep the following in mind: The file must begin with oc- or kubectl- to be recognized as a plugin. The file name determines the command that invokes the plugin. For example, a plugin with the file name oc-foo-bar can be invoked by a command of oc foo bar . You can also use underscores if you want the command to contain dashes. For example, a plugin with the file name oc-foo_bar can be invoked by a command of oc foo-bar . Add the following contents to the file. #!/bin/bash # optional argument handling if [[ "USD1" == "version" ]] then echo "1.0.0" exit 0 fi # optional argument handling if [[ "USD1" == "config" ]] then echo USDKUBECONFIG exit 0 fi echo "I am a plugin named kubectl-foo" After you install this plugin for the OpenShift Container Platform CLI, it can be invoked using the oc foo command. Additional resources Review the Sample plugin repository for an example of a plugin written in Go. Review the CLI runtime repository for a set of utilities to assist in writing plugins in Go. 2.4.2. Installing and using CLI plugins After you write a custom plugin for the OpenShift Container Platform CLI, you must install it to use the functionality that it provides. Prerequisites You must have the oc CLI tool installed. You must have a CLI plugin file that begins with oc- or kubectl- . Procedure If necessary, update the plugin file to be executable. USD chmod +x <plugin_file> Place the file anywhere in your PATH , such as /usr/local/bin/ . USD sudo mv <plugin_file> /usr/local/bin/. Run oc plugin list to make sure that the plugin is listed. USD oc plugin list Example output The following compatible plugins are available: /usr/local/bin/<plugin_file> If your plugin is not listed here, verify that the file begins with oc- or kubectl- , is executable, and is on your PATH . Invoke the new command or option introduced by the plugin. For example, if you built and installed the kubectl-ns plugin from the Sample plugin repository , you can use the following command to view the current namespace. USD oc ns Note that the command to invoke the plugin depends on the plugin file name. For example, a plugin with the file name of oc-foo-bar is invoked by the oc foo bar command. 2.5. OpenShift CLI developer command reference This reference provides descriptions and example commands for OpenShift CLI ( oc ) developer commands. For administrator commands, see the OpenShift CLI administrator command reference . Run oc help to list all commands or run oc <command> --help to get additional details for a specific command. 2.5.1. OpenShift CLI (oc) developer commands 2.5.1.1. oc annotate Update the annotations on a resource Example usage # Update pod 'foo' with the annotation 'description' and the value 'my frontend' # If the same annotation is set multiple times, only the last value will be applied oc annotate pods foo description='my frontend' # Update a pod identified by type and name in "pod.json" oc annotate -f pod.json description='my frontend' # Update pod 'foo' with the annotation 'description' and the value 'my frontend running nginx', overwriting any existing value oc annotate --overwrite pods foo description='my frontend running nginx' # Update all pods in the namespace oc annotate pods --all description='my frontend running nginx' # Update pod 'foo' only if the resource is unchanged from version 1 oc annotate pods foo description='my frontend running nginx' --resource-version=1 # Update pod 'foo' by removing an annotation named 'description' if it exists # Does not require the --overwrite flag oc annotate pods foo description- 2.5.1.2. oc api-resources Print the supported API resources on the server Example usage # Print the supported API resources oc api-resources # Print the supported API resources with more information oc api-resources -o wide # Print the supported API resources sorted by a column oc api-resources --sort-by=name # Print the supported namespaced resources oc api-resources --namespaced=true # Print the supported non-namespaced resources oc api-resources --namespaced=false # Print the supported API resources with a specific APIGroup oc api-resources --api-group=extensions 2.5.1.3. oc api-versions Print the supported API versions on the server, in the form of "group/version" Example usage # Print the supported API versions oc api-versions 2.5.1.4. oc apply Apply a configuration to a resource by file name or stdin Example usage # Apply the configuration in pod.json to a pod oc apply -f ./pod.json # Apply resources from a directory containing kustomization.yaml - e.g. dir/kustomization.yaml oc apply -k dir/ # Apply the JSON passed into stdin to a pod cat pod.json | oc apply -f - # 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 Edit latest last-applied-configuration annotations of a resource/object Example usage # Edit the last-applied-configuration annotations by type/name in YAML oc apply edit-last-applied deployment/nginx # Edit the last-applied-configuration annotations by file in JSON oc apply edit-last-applied -f deploy.yaml -o json 2.5.1.6. oc apply set-last-applied Set the last-applied-configuration annotation on a live object to match the contents of a file Example usage # Set the last-applied-configuration of a resource to match the contents of a file oc apply set-last-applied -f deploy.yaml # Execute set-last-applied against each configuration file in a directory oc apply set-last-applied -f path/ # Set the last-applied-configuration of a resource to match the contents of a file; will create the annotation if it does not already exist oc apply set-last-applied -f deploy.yaml --create-annotation=true 2.5.1.7. oc apply view-last-applied View the latest last-applied-configuration annotations of a resource/object Example usage # View the last-applied-configuration annotations by type/name in YAML oc apply view-last-applied deployment/nginx # View the last-applied-configuration annotations by file in JSON oc apply view-last-applied -f deploy.yaml -o json 2.5.1.8. oc attach Attach to a running container Example usage # Get output from running pod mypod; use the 'oc.kubernetes.io/default-container' annotation # for selecting the container to be attached or the first container in the pod will be chosen oc attach mypod # Get output from ruby-container from pod mypod oc attach mypod -c ruby-container # Switch to raw terminal mode; sends stdin to 'bash' in ruby-container from pod mypod # and sends stdout/stderr from 'bash' back to the client oc attach mypod -c ruby-container -i -t # Get output from the first pod of a replica set named nginx oc attach rs/nginx 2.5.1.9. oc auth can-i Check whether an action is allowed Example usage # Check to see if I can create pods in any namespace oc auth can-i create pods --all-namespaces # Check to see if I can list deployments in my current namespace oc auth can-i list deployments.apps # Check to see if 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 Reconciles rules for RBAC role, role binding, cluster role, and cluster role binding objects Example usage # Reconcile RBAC resources from a file oc auth reconcile -f my-rbac-rules.yaml 2.5.1.11. oc autoscale Autoscale a deployment config, deployment, replica set, stateful set, or replication controller Example usage # 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 Cancel running, pending, or new builds Example usage # 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 Display cluster information Example usage # Print the address of the control plane and cluster services oc cluster-info 2.5.1.14. oc cluster-info dump Dump relevant information for debugging and diagnosis Example usage # Dump current cluster state to stdout oc cluster-info dump # Dump current cluster state to /path/to/cluster-state oc cluster-info dump --output-directory=/path/to/cluster-state # Dump all namespaces to stdout oc cluster-info dump --all-namespaces # Dump a set of namespaces to /path/to/cluster-state oc cluster-info dump --namespaces default,kube-system --output-directory=/path/to/cluster-state 2.5.1.15. oc completion Output shell completion code for the specified shell (bash, zsh or fish) Example usage # Installing bash completion on macOS using homebrew ## If running Bash 3.2 included with macOS brew install bash-completion ## or, if running Bash 4.1+ brew install bash-completion@2 ## If oc is installed via homebrew, this should start working immediately ## If you've installed via other means, you may need add the completion to your completion directory oc completion bash > USD(brew --prefix)/etc/bash_completion.d/oc # Installing bash completion on Linux ## If bash-completion is not installed on Linux, install the 'bash-completion' package ## via your distribution's package manager. ## Load the oc completion code for bash into the current shell source <(oc completion bash) ## Write bash completion code to a file and source it from .bash_profile oc completion bash > ~/.kube/completion.bash.inc printf " # Kubectl shell completion source 'USDHOME/.kube/completion.bash.inc' " >> USDHOME/.bash_profile source USDHOME/.bash_profile # Load the oc completion code for zsh[1] into the current shell source <(oc completion zsh) # Set the oc completion code for zsh[1] to autoload on startup oc completion zsh > "USD{fpath[1]}/_oc" # Load the oc completion code for fish[2] into the current shell oc completion fish | source # To load completions for each session, execute once: oc completion fish > ~/.config/fish/completions/oc.fish # Load the oc completion code for powershell into the current shell oc completion powershell | Out-String | Invoke-Expression # Set oc completion code for powershell to run on startup ## Save completion code to a script and execute in the profile oc completion powershell > USDHOME\.kube\completion.ps1 Add-Content USDPROFILE "USDHOME\.kube\completion.ps1" ## Execute completion code in the profile Add-Content USDPROFILE "if (Get-Command oc -ErrorAction SilentlyContinue) { oc completion powershell | Out-String | Invoke-Expression }" ## Add completion code directly to the USDPROFILE script oc completion powershell >> USDPROFILE 2.5.1.16. oc config current-context Display the current-context Example usage # Display the current-context oc config current-context 2.5.1.17. oc config delete-cluster Delete the specified cluster from the kubeconfig Example usage # Delete the minikube cluster oc config delete-cluster minikube 2.5.1.18. oc config delete-context Delete the specified context from the kubeconfig Example usage # Delete the context for the minikube cluster oc config delete-context minikube 2.5.1.19. oc config delete-user Delete the specified user from the kubeconfig Example usage # Delete the minikube user oc config delete-user minikube 2.5.1.20. oc config get-clusters Display clusters defined in the kubeconfig Example usage # List the clusters that oc knows about oc config get-clusters 2.5.1.21. oc config get-contexts Describe one or many contexts Example usage # List all the contexts in your kubeconfig file oc config get-contexts # Describe one context in your kubeconfig file oc config get-contexts my-context 2.5.1.22. oc config get-users Display users defined in the kubeconfig Example usage # List the users that oc knows about oc config get-users 2.5.1.23. oc config rename-context Rename a context from the kubeconfig file Example usage # Rename the context 'old-name' to 'new-name' in your kubeconfig file oc config rename-context old-name new-name 2.5.1.24. oc config set Set an individual value in a kubeconfig file Example usage # Set the server field on the my-cluster cluster to https://1.2.3.4 oc config set clusters.my-cluster.server https://1.2.3.4 # Set the certificate-authority-data field on the my-cluster cluster oc config set clusters.my-cluster.certificate-authority-data USD(echo "cert_data_here" | base64 -i -) # Set the cluster field in the my-context context to my-cluster oc config set contexts.my-context.cluster my-cluster # Set the client-key-data field in the cluster-admin user using --set-raw-bytes option oc config set users.cluster-admin.client-key-data cert_data_here --set-raw-bytes=true 2.5.1.25. oc config set-cluster Set a cluster entry in kubeconfig Example usage # Set only the server field on the e2e cluster entry without touching other values oc config set-cluster e2e --server=https://1.2.3.4 # Embed certificate authority data for the e2e cluster entry oc config set-cluster e2e --embed-certs --certificate-authority=~/.kube/e2e/kubernetes.ca.crt # Disable cert checking for the dev 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 2.5.1.26. oc config set-context Set a context entry in kubeconfig Example usage # Set the user field on the gce context entry without touching other values oc config set-context gce --user=cluster-admin 2.5.1.27. oc config set-credentials Set a user entry in kubeconfig Example usage # Set only the "client-key" field on the "cluster-admin" # entry, without touching other values oc config set-credentials cluster-admin --client-key=~/.kube/admin.key # Set basic auth for the "cluster-admin" entry oc config set-credentials cluster-admin --username=admin --password=uXFGweU9l35qcif # Embed client certificate data in the "cluster-admin" entry oc config set-credentials cluster-admin --client-certificate=~/.kube/admin.crt --embed-certs=true # Enable the Google Compute Platform auth provider for the "cluster-admin" entry oc config set-credentials cluster-admin --auth-provider=gcp # Enable the OpenID Connect auth provider for the "cluster-admin" entry with additional args oc config set-credentials cluster-admin --auth-provider=oidc --auth-provider-arg=client-id=foo --auth-provider-arg=client-secret=bar # Remove the "client-secret" config value for the OpenID Connect auth provider for the "cluster-admin" entry oc config set-credentials cluster-admin --auth-provider=oidc --auth-provider-arg=client-secret- # Enable new exec auth plugin for the "cluster-admin" entry oc config set-credentials cluster-admin --exec-command=/path/to/the/executable --exec-api-version=client.authentication.k8s.io/v1beta1 # Define new exec auth plugin args for the "cluster-admin" entry oc config set-credentials cluster-admin --exec-arg=arg1 --exec-arg=arg2 # Create or update exec auth plugin environment variables for the "cluster-admin" entry oc config set-credentials cluster-admin --exec-env=key1=val1 --exec-env=key2=val2 # Remove exec auth plugin environment variables for the "cluster-admin" entry oc config set-credentials cluster-admin --exec-env=var-to-remove- 2.5.1.28. oc config unset Unset an individual value in a kubeconfig file Example usage # Unset the current-context oc config unset current-context # Unset namespace in foo context oc config unset contexts.foo.namespace 2.5.1.29. oc config use-context Set the current-context in a kubeconfig file Example usage # Use the context for the minikube cluster oc config use-context minikube 2.5.1.30. oc config view Display merged kubeconfig settings or a specified kubeconfig file Example usage # Show merged kubeconfig settings oc config view # Show merged kubeconfig settings and raw certificate data 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 Copy files and directories to and from containers Example usage # !!!Important Note!!! # Requires that the 'tar' binary is present in your container # image. If 'tar' is not present, 'oc cp' will fail. # # For advanced use cases, such as symlinks, wildcard expansion or # file mode preservation, consider using 'oc exec'. # Copy /tmp/foo local file to /tmp/bar in a remote pod in namespace <some-namespace> tar cf - /tmp/foo | oc exec -i -n <some-namespace> <some-pod> -- tar xf - -C /tmp/bar # Copy /tmp/foo from a remote pod to /tmp/bar locally oc exec -n <some-namespace> <some-pod> -- tar cf - /tmp/foo | tar xf - -C /tmp/bar # Copy /tmp/foo_dir local directory to /tmp/bar_dir in a remote pod in the default namespace oc cp /tmp/foo_dir <some-pod>:/tmp/bar_dir # Copy /tmp/foo local file to /tmp/bar in a remote pod in a specific container oc cp /tmp/foo <some-pod>:/tmp/bar -c <specific-container> # Copy /tmp/foo local file to /tmp/bar in a remote pod in namespace <some-namespace> oc cp /tmp/foo <some-namespace>/<some-pod>:/tmp/bar # Copy /tmp/foo from a remote pod to /tmp/bar locally oc cp <some-namespace>/<some-pod>:/tmp/foo /tmp/bar 2.5.1.32. oc create Create a resource from a file or from stdin Example usage # Create a pod using the data in pod.json oc create -f ./pod.json # Create a pod based on the JSON passed into stdin cat pod.json | oc create -f - # Edit the data in docker-registry.yaml in JSON then create the resource using the edited data oc create -f docker-registry.yaml --edit -o json 2.5.1.33. oc create build Create a new build Example usage # Create a new build oc create build myapp 2.5.1.34. oc create clusterresourcequota Create a cluster resource quota Example usage # 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 Create a cluster role Example usage # Create a cluster role named "pod-reader" that allows user to perform "get", "watch" and "list" on pods oc create clusterrole pod-reader --verb=get,list,watch --resource=pods # Create a cluster role named "pod-reader" with ResourceName specified oc create clusterrole pod-reader --verb=get --resource=pods --resource-name=readablepod --resource-name=anotherpod # Create a cluster role named "foo" with API Group specified oc create clusterrole foo --verb=get,list,watch --resource=rs.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 Create a cluster role binding for a particular cluster role Example usage # Create a cluster role binding for user1, user2, and group1 using the cluster-admin cluster role oc create clusterrolebinding cluster-admin --clusterrole=cluster-admin --user=user1 --user=user2 --group=group1 2.5.1.37. oc create configmap Create a config map from a local file, directory or literal value Example usage # Create a new config map named my-config based on folder bar oc create configmap my-config --from-file=path/to/bar # Create a new config map named my-config with specified keys instead of file basenames on disk oc create configmap my-config --from-file=key1=/path/to/bar/file1.txt --from-file=key2=/path/to/bar/file2.txt # Create a new config map named my-config with key1=config1 and key2=config2 oc create configmap my-config --from-literal=key1=config1 --from-literal=key2=config2 # Create a new config map named my-config from the key=value pairs in the file oc create configmap my-config --from-file=path/to/bar # Create a new config map named my-config from an env file oc create configmap my-config --from-env-file=path/to/foo.env --from-env-file=path/to/bar.env 2.5.1.38. oc create cronjob Create a cron job with the specified name Example usage # Create a cron job oc create cronjob my-job --image=busybox --schedule="*/1 * * * *" # Create a cron job with a command oc create cronjob my-job --image=busybox --schedule="*/1 * * * *" -- date 2.5.1.39. oc create deployment Create a deployment with the specified name Example usage # Create a deployment named my-dep that runs the busybox image oc create deployment my-dep --image=busybox # Create a deployment with a command oc create deployment my-dep --image=busybox -- date # Create a deployment named my-dep that runs the nginx image with 3 replicas oc create deployment my-dep --image=nginx --replicas=3 # Create a deployment named my-dep that runs the busybox image and expose port 5701 oc create deployment my-dep --image=busybox --port=5701 2.5.1.40. oc create deploymentconfig Create a deployment config with default options that uses a given image Example usage # Create an nginx deployment config named my-nginx oc create deploymentconfig my-nginx --image=nginx 2.5.1.41. oc create identity Manually create an identity (only needed if automatic creation is disabled) Example usage # 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 Create a new empty image stream Example usage # Create a new image stream oc create imagestream mysql 2.5.1.43. oc create imagestreamtag Create a new image stream tag Example usage # 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 Create an ingress with the specified name Example usage # Create a single ingress called 'simple' that directs requests to foo.com/bar to svc # svc1:8080 with a tls secret "my-cert" oc create ingress simple --rule="foo.com/bar=svc1:8080,tls=my-cert" # Create a catch all ingress of "/path" pointing to service svc:port and Ingress Class as "otheringress" oc create ingress catch-all --class=otheringress --rule="/path=svc:port" # Create an ingress with two annotations: ingress.annotation1 and ingress.annotations2 oc create ingress annotated --class=default --rule="foo.com/bar=svc:port" \ --annotation ingress.annotation1=foo \ --annotation ingress.annotation2=bla # Create an ingress with the same host and multiple paths oc create ingress multipath --class=default \ --rule="foo.com/=svc:port" \ --rule="foo.com/admin/=svcadmin:portadmin" # Create an ingress with multiple hosts and the pathType as Prefix oc create ingress ingress1 --class=default \ --rule="foo.com/path*=svc:8080" \ --rule="bar.com/admin*=svc2:http" # Create an ingress with TLS enabled using the default ingress certificate and different path types oc create ingress ingtls --class=default \ --rule="foo.com/=svc:https,tls" \ --rule="foo.com/path/subpath*=othersvc:8080" # Create an ingress with TLS enabled using a specific secret and pathType as Prefix oc create ingress ingsecret --class=default \ --rule="foo.com/*=svc:8080,tls=secret1" # Create an ingress with a default backend oc create ingress ingdefault --class=default \ --default-backend=defaultsvc:http \ --rule="foo.com/*=svc:8080,tls=secret1" 2.5.1.45. oc create job Create a job with the specified name Example usage # Create a job oc create job my-job --image=busybox # Create a job with a command oc create job my-job --image=busybox -- date # Create a job from a cron job named "a-cronjob" oc create job test-job --from=cronjob/a-cronjob 2.5.1.46. oc create namespace Create a namespace with the specified name Example usage # Create a new namespace named my-namespace oc create namespace my-namespace 2.5.1.47. oc create poddisruptionbudget Create a pod disruption budget with the specified name Example usage # Create a pod disruption budget named my-pdb that will select all pods with the app=rails label # and require at least one of them being available at any point in time oc create poddisruptionbudget my-pdb --selector=app=rails --min-available=1 # Create a pod disruption budget named my-pdb that will select all pods with the app=nginx label # and require at least half of the pods selected to be available at any point in time oc create pdb my-pdb --selector=app=nginx --min-available=50% 2.5.1.48. oc create priorityclass Create a priority class with the specified name Example usage # Create a priority class named high-priority oc create priorityclass high-priority --value=1000 --description="high priority" # Create a priority class named default-priority that is considered as the global default priority oc create priorityclass default-priority --value=1000 --global-default=true --description="default priority" # Create a priority class named high-priority that cannot preempt pods with lower priority oc create priorityclass high-priority --value=1000 --description="high priority" --preemption-policy="Never" 2.5.1.49. oc create quota Create a quota with the specified name Example usage # Create a new resource quota named my-quota oc create quota my-quota --hard=cpu=1,memory=1G,pods=2,services=3,replicationcontrollers=2,resourcequotas=1,secrets=5,persistentvolumeclaims=10 # Create a new resource quota named best-effort oc create quota best-effort --hard=pods=100 --scopes=BestEffort 2.5.1.50. oc create role Create a role with single rule Example usage # Create a role named "pod-reader" that allows user to perform "get", "watch" and "list" on pods oc create role pod-reader --verb=get --verb=list --verb=watch --resource=pods # Create a role named "pod-reader" with ResourceName specified oc create role pod-reader --verb=get --resource=pods --resource-name=readablepod --resource-name=anotherpod # Create a role named "foo" with API Group specified oc create role foo --verb=get,list,watch --resource=rs.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 Create a role binding for a particular role or cluster role Example usage # Create a role binding for user1, user2, and group1 using the admin cluster role oc create rolebinding admin --clusterrole=admin --user=user1 --user=user2 --group=group1 2.5.1.52. oc create route edge Create a route that uses edge TLS termination Example usage # Create an edge route named "my-route" that exposes the frontend service oc create route edge my-route --service=frontend # Create an edge route that exposes the frontend service and specify a path # If the route name is omitted, the service name will be used oc create route edge --service=frontend --path /assets 2.5.1.53. oc create route passthrough Create a route that uses passthrough TLS termination Example usage # Create a passthrough route named "my-route" that exposes the frontend service oc create route passthrough my-route --service=frontend # Create a passthrough route that exposes the frontend service and specify # a host name. If the route name is omitted, the service name will be used oc create route passthrough --service=frontend --hostname=www.example.com 2.5.1.54. oc create route reencrypt Create a route that uses reencrypt TLS termination Example usage # Create a route named "my-route" that exposes the frontend service oc create route reencrypt my-route --service=frontend --dest-ca-cert cert.cert # Create a reencrypt route that exposes the frontend service, letting the # route name default to the service name and the destination CA certificate # default to the service CA oc create route reencrypt --service=frontend 2.5.1.55. oc create secret docker-registry Create a secret for use with a Docker registry Example usage # If you don't already have a .dockercfg file, you can create a dockercfg secret directly by using: oc create secret docker-registry my-secret --docker-server=DOCKER_REGISTRY_SERVER --docker-username=DOCKER_USER --docker-password=DOCKER_PASSWORD --docker-email=DOCKER_EMAIL # Create a new secret named my-secret from ~/.docker/config.json oc create secret docker-registry my-secret --from-file=.dockerconfigjson=path/to/.docker/config.json 2.5.1.56. oc create secret generic Create a secret from a local file, directory, or literal value Example usage # Create a new secret named my-secret with keys for each file in folder bar oc create secret generic my-secret --from-file=path/to/bar # Create a new secret named my-secret with specified keys instead of names on disk oc create secret generic my-secret --from-file=ssh-privatekey=path/to/id_rsa --from-file=ssh-publickey=path/to/id_rsa.pub # Create a new secret named my-secret with key1=supersecret and key2=topsecret oc create secret generic my-secret --from-literal=key1=supersecret --from-literal=key2=topsecret # Create a new secret named my-secret using a combination of a file and a literal oc create secret generic my-secret --from-file=ssh-privatekey=path/to/id_rsa --from-literal=passphrase=topsecret # Create a new secret named my-secret from env files oc create secret generic my-secret --from-env-file=path/to/foo.env --from-env-file=path/to/bar.env 2.5.1.57. oc create secret tls Create a TLS secret Example usage # Create a new TLS secret named tls-secret with the given key pair oc create secret tls tls-secret --cert=path/to/tls.cert --key=path/to/tls.key 2.5.1.58. oc create service clusterip Create a ClusterIP service Example usage # Create a new ClusterIP service named my-cs oc create service clusterip my-cs --tcp=5678:8080 # Create a new ClusterIP service named my-cs (in headless mode) oc create service clusterip my-cs --clusterip="None" 2.5.1.59. oc create service externalname Create an ExternalName service Example usage # Create a new ExternalName service named my-ns oc create service externalname my-ns --external-name bar.com 2.5.1.60. oc create service loadbalancer Create a LoadBalancer service Example usage # Create a new LoadBalancer service named my-lbs oc create service loadbalancer my-lbs --tcp=5678:8080 2.5.1.61. oc create service nodeport Create a NodePort service Example usage # Create a new NodePort service named my-ns oc create service nodeport my-ns --tcp=5678:8080 2.5.1.62. oc create serviceaccount Create a service account with the specified name Example usage # Create a new service account named my-service-account oc create serviceaccount my-service-account 2.5.1.63. oc create user Manually create a user (only needed if automatic creation is disabled) Example usage # Create a user with the username "ajones" and the display name "Adam Jones" oc create user ajones --full-name="Adam Jones" 2.5.1.64. oc create useridentitymapping Manually map an identity to a user Example usage # Map the identity "acme_ldap:adamjones" to the user "ajones" oc create useridentitymapping acme_ldap:adamjones ajones 2.5.1.65. oc debug Launch a new instance of a pod for debugging Example usage # Start a shell session into a pod using the OpenShift tools image oc debug # Debug a currently running deployment by creating a new pod oc debug deploy/test # Debug a node as an administrator oc debug node/master-1 # Launch a shell in a pod using the provided image stream tag oc debug istag/mysql:latest -n openshift # Test running a job as a non-root user oc debug job/test --as-user=1000000 # Debug a specific failing container by running the env command in the 'second' container oc debug daemonset/test -c second -- /bin/env # See the pod that would be created to debug oc debug mypod-9xbc -o yaml # Debug a resource but launch the debug pod in another namespace # Note: Not all resources can be debugged using --to-namespace without modification. For example, # volumes and service accounts are namespace-dependent. Add '-o yaml' to output the debug pod definition # to disk. If necessary, edit the definition then run 'oc debug -f -' or run without --to-namespace oc debug mypod-9xbc --to-namespace testns 2.5.1.66. oc delete Delete resources by file names, stdin, resources and names, or by resources and label selector Example usage # Delete a pod using the type and name specified in pod.json oc delete -f ./pod.json # Delete resources from a directory containing kustomization.yaml - e.g. dir/kustomization.yaml oc delete -k dir # Delete 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 2.5.1.67. oc describe Show details of a specific resource or group of resources Example usage # Describe a node oc describe nodes kubernetes-node-emt8.c.myproject.internal # Describe a pod oc describe pods/nginx # Describe a pod identified by type and name in "pod.json" oc describe -f pod.json # Describe all pods oc describe pods # Describe pods by label name=myLabel oc describe po -l name=myLabel # Describe all pods managed by the 'frontend' replication controller # (rc-created pods get the name of the rc as a prefix in the pod name) oc describe pods frontend 2.5.1.68. oc diff Diff the live version against a would-be applied version Example usage # Diff resources included in pod.json oc diff -f pod.json # Diff file read from stdin cat service.yaml | oc diff -f - 2.5.1.69. oc edit Edit a resource on the server Example usage # Edit the service named 'docker-registry' oc edit svc/docker-registry # Use an alternative editor KUBE_EDITOR="nano" oc edit svc/docker-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 2.5.1.70. oc exec Execute a command in a container Example usage # Get output from running the 'date' command from pod mypod, using the first container by default oc exec mypod -- date # Get output from running the 'date' command in ruby-container from pod mypod oc exec mypod -c ruby-container -- date # Switch to raw terminal mode; sends stdin to 'bash' in ruby-container from pod mypod # and sends stdout/stderr from 'bash' back to the client oc exec mypod -c ruby-container -i -t -- bash -il # List contents of /usr from the first container of pod mypod and sort by modification time # If the command you want to execute in the pod has any flags in common (e.g. -i), # you must use two dashes (--) to separate your command's flags/arguments # Also note, do not surround your command and its flags/arguments with quotes # unless that is how you would execute it normally (i.e., do ls -t /usr, not "ls -t /usr") oc exec mypod -i -t -- ls -t /usr # Get output from running 'date' command from the first pod of the deployment mydeployment, using the first container by default oc exec deploy/mydeployment -- date # Get output from running 'date' command from the first pod of the service myservice, using the first container by default oc exec svc/myservice -- date 2.5.1.71. oc explain Get documentation for a resource Example usage # Get the documentation of the resource and its fields oc explain pods # Get the documentation of a specific field of a resource oc explain pods.spec.containers 2.5.1.72. oc expose Expose a replicated application as a service or route Example usage # Create a route based on service nginx. The new route will reuse nginx's labels oc expose service nginx # Create a route and specify your own label and route name oc expose service nginx -l name=myroute --name=fromdowntown # Create a route and specify a host name oc expose service nginx --hostname=www.example.com # Create a route with a wildcard oc expose service nginx --hostname=x.example.com --wildcard-policy=Subdomain # This would be equivalent to *.example.com. NOTE: only hosts are matched by the wildcard; subdomains would not be included # Expose a deployment configuration as a service and use the specified port oc expose dc ruby-hello-world --port=8080 # Expose a service as a route in the specified path oc expose service nginx --path=/nginx # Expose a service using different generators oc expose service nginx --name=exposed-svc --port=12201 --protocol="TCP" --generator="service/v2" oc expose service nginx --name=my-route --port=12201 --generator="route/v1" # Exposing a service using the "route/v1" generator (default) will create a new exposed route with the "--name" provided # (or the name of the service otherwise). You may not specify a "--protocol" or "--target-port" option when using this generator 2.5.1.73. oc extract Extract secrets or config maps to disk Example usage # Extract the secret "test" to the current directory oc extract secret/test # Extract the config map "nginx" to the /tmp directory oc extract configmap/nginx --to=/tmp # Extract the config map "nginx" to STDOUT oc extract configmap/nginx --to=- # Extract only the key "nginx.conf" from config map "nginx" to the /tmp directory oc extract configmap/nginx --to=/tmp --keys=nginx.conf 2.5.1.74. oc get Display one or many resources Example usage # List all pods in ps output format oc get pods # List all pods in ps output format with more information (such as node name) oc get pods -o wide # List a single replication controller with specified NAME in ps output format oc get replicationcontroller web # List deployments in JSON output format, in the "v1" version of the "apps" API group oc get deployments.v1.apps -o json # List a single pod in JSON output format oc get -o json pod web-pod-13je7 # List a pod identified by type and name specified in "pod.yaml" in JSON output format oc get -f pod.yaml -o json # List resources from a directory with kustomization.yaml - e.g. dir/kustomization.yaml oc get -k dir/ # Return only the phase value of the specified pod oc get -o template pod/web-pod-13je7 --template={{.status.phase}} # List resource information in custom columns oc get pod test-pod -o custom-columns=CONTAINER:.spec.containers[0].name,IMAGE:.spec.containers[0].image # List all replication controllers and services together in ps output format oc get rc,services # List one or more resources by their type and names oc get rc/web service/frontend pods/web-pod-13je7 2.5.1.75. oc idle Idle scalable resources Example usage # Idle the scalable controllers associated with the services listed in to-idle.txt USD oc idle --resource-names-file to-idle.txt 2.5.1.76. oc image append Add layers to images and push them to a registry Example usage # Remove the entrypoint on the mysql:latest image oc image append --from mysql:latest --to myregistry.com/myimage:latest --image '{"Entrypoint":null}' # Add a new layer to the image oc image append --from mysql:latest --to myregistry.com/myimage:latest layer.tar.gz # Add a new layer to the image and store the result on disk # This results in USD(pwd)/v2/mysql/blobs,manifests oc image append --from mysql:latest --to file://mysql:local layer.tar.gz # Add a new layer to the image and store the result on disk in a designated directory # This will result in USD(pwd)/mysql-local/v2/mysql/blobs,manifests oc image append --from mysql:latest --to file://mysql:local --dir mysql-local layer.tar.gz # Add a new layer to an image that is stored on disk (~/mysql-local/v2/image exists) oc image append --from-dir ~/mysql-local --to myregistry.com/myimage:latest layer.tar.gz # Add a new layer to an image that was mirrored to the current directory on disk (USD(pwd)/v2/image exists) oc image append --from-dir v2 --to myregistry.com/myimage:latest layer.tar.gz # Add a new layer to a multi-architecture image for an os/arch that is different from the system's os/arch # Note: 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 2.5.1.77. oc image extract Copy files from an image to the file system Example usage # Extract the busybox image into the current directory oc image extract docker.io/library/busybox:latest # Extract the busybox image into a designated directory (must exist) oc image extract docker.io/library/busybox:latest --path /:/tmp/busybox # Extract the busybox image into the current directory for linux/s390x platform # Note: Wildcard filter is not supported with extract. Pass a single os/arch to extract oc image extract docker.io/library/busybox:latest --filter-by-os=linux/s390x # Extract a single file from the image into the current directory oc image extract docker.io/library/centos:7 --path /bin/bash:. # Extract all .repo files from the image's /etc/yum.repos.d/ folder into the current directory oc image extract docker.io/library/centos:7 --path /etc/yum.repos.d/*.repo:. # Extract all .repo files from the image's /etc/yum.repos.d/ folder into a designated directory (must exist) # This results in /tmp/yum.repos.d/*.repo on local system oc image extract docker.io/library/centos:7 --path /etc/yum.repos.d/*.repo:/tmp/yum.repos.d # Extract an image stored on disk into the current directory (USD(pwd)/v2/busybox/blobs,manifests exists) # --confirm is required because the current directory is not empty oc image extract file://busybox:local --confirm # Extract an image stored on disk in a directory other than USD(pwd)/v2 into the current directory # --confirm is required because the current directory is not empty (USD(pwd)/busybox-mirror-dir/v2/busybox exists) oc image extract file://busybox:local --dir busybox-mirror-dir --confirm # Extract an image stored on disk in a directory other than USD(pwd)/v2 into a designated directory (must exist) oc image extract file://busybox:local --dir busybox-mirror-dir --path /:/tmp/busybox # Extract the last layer in the image oc image extract docker.io/library/centos:7[-1] # Extract the first three layers of the image oc image extract docker.io/library/centos:7[:3] # Extract the last three layers of the image oc image extract docker.io/library/centos:7[-3:] 2.5.1.78. oc image info Display information about an image Example usage # Show information about an image oc image info quay.io/openshift/cli:latest # Show information about images matching a wildcard oc image info quay.io/openshift/cli:4.* # Show information about a file mirrored to disk under DIR oc image info --dir=DIR file://library/busybox:latest # Select which image from a multi-OS image to show oc image info library/busybox:latest --filter-by-os=linux/arm64 2.5.1.79. oc image mirror Mirror images from one repository to another Example usage # Copy image to another tag oc image mirror myregistry.com/myimage:latest myregistry.com/myimage:stable # Copy image to another registry oc image mirror myregistry.com/myimage:latest docker.io/myrepository/myimage:stable # Copy all tags starting with mysql to the destination repository oc image mirror myregistry.com/myimage:mysql* docker.io/myrepository/myimage # Copy image to disk, creating a directory structure that can be served as a registry oc image mirror myregistry.com/myimage:latest file://myrepository/myimage:latest # Copy image to S3 (pull from <bucket>.s3.amazonaws.com/image:latest) oc image mirror myregistry.com/myimage:latest s3://s3.amazonaws.com/<region>/<bucket>/image:latest # Copy image to S3 without setting a tag (pull via @<digest>) oc image mirror myregistry.com/myimage:latest s3://s3.amazonaws.com/<region>/<bucket>/image # Copy image to multiple locations oc image mirror myregistry.com/myimage:latest docker.io/myrepository/myimage:stable \ docker.io/myrepository/myimage:dev # Copy multiple images oc image mirror myregistry.com/myimage:latest=myregistry.com/other:test \ myregistry.com/myimage:new=myregistry.com/other:target # Copy manifest list of a multi-architecture image, even if only a single image is found oc image mirror myregistry.com/myimage:latest=myregistry.com/other:test \ --keep-manifest-list=true # Copy specific os/arch manifest of a multi-architecture image # Run 'oc image info myregistry.com/myimage:latest' to see available os/arch for multi-arch images # Note that with multi-arch images, this results in a new manifest list digest that includes only # the filtered manifests oc image mirror myregistry.com/myimage:latest=myregistry.com/other:test \ --filter-by-os=os/arch # Copy all os/arch manifests of a multi-architecture image # Run 'oc image info myregistry.com/myimage:latest' to see list of os/arch manifests that will be mirrored oc image mirror myregistry.com/myimage:latest=myregistry.com/other:test \ --keep-manifest-list=true # Note the above command is equivalent to oc image mirror myregistry.com/myimage:latest=myregistry.com/other:test \ --filter-by-os=.* 2.5.1.80. oc import-image Import images from a container image registry Example usage # 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 2.5.1.81. oc kustomize Build a kustomization target from a directory or URL. Example usage # Build the current working directory oc kustomize # Build some shared configuration directory oc kustomize /home/config/production # Build from github oc kustomize https://github.com/kubernetes-sigs/kustomize.git/examples/helloWorld?ref=v1.0.6 2.5.1.82. oc label Update the labels on a resource Example usage # Update pod 'foo' with the label 'unhealthy' and the value 'true' oc label pods foo unhealthy=true # Update pod 'foo' with the label 'status' and the value 'unhealthy', overwriting any existing value oc label --overwrite pods foo status=unhealthy # Update all pods in the namespace oc label pods --all status=unhealthy # Update a pod identified by the type and name in "pod.json" oc label -f pod.json status=unhealthy # Update pod 'foo' only if the resource is unchanged from version 1 oc label pods foo status=unhealthy --resource-version=1 # Update pod 'foo' by removing a label named 'bar' if it exists # Does not require the --overwrite flag oc label pods foo bar- 2.5.1.83. oc login Log in to a server Example usage # 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 2.5.1.84. oc logout End the current server session Example usage # Log out oc logout 2.5.1.85. oc logs Print the logs for a container in a pod Example usage # Start streaming the logs of the most recent build of the openldap build config oc logs -f bc/openldap # Start streaming the logs of the latest deployment of the mysql deployment config oc logs -f dc/mysql # Get the logs of the first deployment for the mysql deployment config. Note that logs # from older deployments may not exist either because the deployment was successful # or due to deployment pruning or manual deletion of the deployment oc logs --version=1 dc/mysql # Return a snapshot of ruby-container logs from pod backend oc logs backend -c ruby-container # Start streaming of ruby-container logs from pod backend oc logs -f pod/backend -c ruby-container 2.5.1.86. oc new-app Create a new application Example usage # 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 2.5.1.87. oc new-build Create a new build configuration Example usage # 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 USD'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 2.5.1.88. oc new-project Request a new project Example usage # 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." 2.5.1.89. oc observe Observe changes to resources and react to them (experimental) Example usage # Observe changes to services oc observe services # Observe changes to services, including the clusterIP and invoke a script for each oc observe services --template '{ .spec.clusterIP }' -- register_dns.sh # Observe changes to services filtered by a label selector oc observe namespaces -l regist-dns=true --template '{ .spec.clusterIP }' -- register_dns.sh 2.5.1.90. oc patch Update fields of a resource Example usage # Partially update a node using a strategic merge patch, specifying the patch as JSON oc patch node k8s-node-1 -p '{"spec":{"unschedulable":true}}' # Partially update a node using a strategic merge patch, specifying the patch as YAML oc patch node k8s-node-1 -p USD'spec:\n unschedulable: true' # Partially update a node identified by the type and name specified in "node.json" using strategic merge patch oc patch -f node.json -p '{"spec":{"unschedulable":true}}' # Update a container's image; spec.containers[*].name is required because it's a merge key oc patch pod valid-pod -p '{"spec":{"containers":[{"name":"kubernetes-serve-hostname","image":"new image"}]}}' # Update a container's image using a JSON patch with positional arrays oc patch pod valid-pod --type='json' -p='[{"op": "replace", "path": "/spec/containers/0/image", "value":"new image"}]' 2.5.1.91. oc policy add-role-to-user Add a role to users or service accounts for the current project Example usage # Add the 'view' role to user1 for the current project oc policy add-role-to-user view user1 # Add the 'edit' role to serviceaccount1 for the current project oc policy add-role-to-user edit -z serviceaccount1 2.5.1.92. oc policy scc-review Check which service account can create a pod Example usage # Check whether service accounts sa1 and sa2 can admit a pod with a template pod spec specified in my_resource.yaml # Service Account specified in myresource.yaml file is ignored oc policy scc-review -z sa1,sa2 -f my_resource.yaml # Check whether service accounts system:serviceaccount:bob:default can admit a pod with a template pod spec specified in my_resource.yaml oc policy scc-review -z system:serviceaccount:bob:default -f my_resource.yaml # Check whether the service account specified in my_resource_with_sa.yaml can admit the pod oc policy scc-review -f my_resource_with_sa.yaml # Check whether the default service account can admit the pod; default is taken since no service account is defined in myresource_with_no_sa.yaml oc policy scc-review -f myresource_with_no_sa.yaml 2.5.1.93. oc policy scc-subject-review Check whether a user or a service account can create a pod Example usage # Check whether user bob can create a pod specified in myresource.yaml oc policy scc-subject-review -u bob -f myresource.yaml # Check whether user bob who belongs to projectAdmin group can create a pod specified in myresource.yaml oc policy scc-subject-review -u bob -g projectAdmin -f myresource.yaml # Check whether a service account specified in the pod template spec in myresourcewithsa.yaml can create the pod oc policy scc-subject-review -f myresourcewithsa.yaml 2.5.1.94. oc port-forward Forward one or more local ports to a pod Example usage # Listen on ports 5000 and 6000 locally, forwarding data to/from ports 5000 and 6000 in the pod oc port-forward pod/mypod 5000 6000 # Listen on ports 5000 and 6000 locally, forwarding data to/from ports 5000 and 6000 in a pod selected by the deployment oc port-forward deployment/mydeployment 5000 6000 # Listen on port 8443 locally, forwarding to the targetPort of the service's port named "https" in a pod selected by the service oc port-forward service/myservice 8443:https # Listen on port 8888 locally, forwarding to 5000 in the pod oc port-forward pod/mypod 8888:5000 # Listen on port 8888 on all addresses, forwarding to 5000 in the pod oc port-forward --address 0.0.0.0 pod/mypod 8888:5000 # Listen on port 8888 on localhost and selected IP, forwarding to 5000 in the pod oc port-forward --address localhost,10.19.21.23 pod/mypod 8888:5000 # Listen on a random port locally, forwarding to 5000 in the pod oc port-forward pod/mypod :5000 2.5.1.95. oc process Process a template into list of resources Example usage # 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 - 2.5.1.96. oc project Switch to another project Example usage # Switch to the 'myapp' project oc project myapp # Display the project currently in use oc project 2.5.1.97. oc projects Display existing projects Example usage # List all projects oc projects 2.5.1.98. oc proxy Run a proxy to the Kubernetes API server Example usage # To proxy all of the Kubernetes API and nothing else oc proxy --api-prefix=/ # To proxy only part of the Kubernetes API and also some static files # You can get pods info with 'curl localhost:8001/api/v1/pods' oc proxy --www=/my/files --www-prefix=/static/ --api-prefix=/api/ # To proxy the entire Kubernetes API at a different root # You can get pods info with 'curl localhost:8001/custom/api/v1/pods' oc proxy --api-prefix=/custom/ # Run a proxy to the Kubernetes API server on port 8011, serving static content from ./local/www/ oc proxy --port=8011 --www=./local/www/ # Run a proxy to the Kubernetes API server on an arbitrary local port # The chosen port for the server will be output to stdout oc proxy --port=0 # Run a proxy to the Kubernetes API server, changing the API prefix to k8s-api # This makes e.g. the pods API available at localhost:8001/k8s-api/v1/pods/ oc proxy --api-prefix=/k8s-api 2.5.1.99. oc registry info Print information about the integrated registry Example usage # Display information about the integrated registry oc registry info 2.5.1.100. oc registry login Log in to the integrated registry Example usage # Log in to the integrated registry oc registry login # Log in as the default service account in the current namespace oc registry login -z default # Log in to different registry using BASIC auth credentials oc registry login --registry quay.io/myregistry --auth-basic=USER:PASS 2.5.1.101. oc replace Replace a resource by file name or stdin Example usage # 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/\(image: myimage\):.*USD/\1:v4/' | oc replace -f - # Force replace, delete and then re-create the resource oc replace --force -f ./pod.json 2.5.1.102. oc rollback Revert part of an application back to a deployment Example usage # Perform a rollback to the last successfully completed deployment for a deployment config oc rollback frontend # See what a rollback to version 3 will look like, but do not perform the rollback oc rollback frontend --to-version=3 --dry-run # Perform a rollback to a specific deployment oc rollback frontend-2 # Perform the rollback manually by piping the JSON of the new config back to oc oc rollback frontend -o json | oc replace dc/frontend -f - # Print the updated deployment configuration in JSON format instead of performing the rollback oc rollback frontend -o json 2.5.1.103. oc rollout cancel Cancel the in-progress deployment Example usage # Cancel the in-progress deployment based on 'nginx' oc rollout cancel dc/nginx 2.5.1.104. oc rollout history View rollout history Example usage # View the rollout history of a deployment oc rollout history dc/nginx # View the details of deployment revision 3 oc rollout history dc/nginx --revision=3 2.5.1.105. oc rollout latest Start a new rollout for a deployment config with the latest state from its triggers Example usage # Start a new rollout based on the latest images defined in the image change triggers oc rollout latest dc/nginx # Print the rolled out deployment config oc rollout latest dc/nginx -o json 2.5.1.106. oc rollout pause Mark the provided resource as paused Example usage # Mark the nginx deployment as paused. Any current state of # the deployment will continue its function, new updates to the deployment will not # have an effect as long as the deployment is paused oc rollout pause dc/nginx 2.5.1.107. oc rollout restart Restart a resource Example usage # Restart a deployment oc rollout restart deployment/nginx # Restart a daemon set oc rollout restart daemonset/abc 2.5.1.108. oc rollout resume Resume a paused resource Example usage # Resume an already paused deployment oc rollout resume dc/nginx 2.5.1.109. oc rollout retry Retry the latest failed rollout Example usage # Retry the latest failed deployment based on 'frontend' # The deployer pod and any hook pods are deleted for the latest failed deployment oc rollout retry dc/frontend 2.5.1.110. oc rollout status Show the status of the rollout Example usage # Watch the status of the latest rollout oc rollout status dc/nginx 2.5.1.111. oc rollout undo Undo a rollout Example usage # Roll back to the deployment oc rollout undo dc/nginx # Roll back to deployment revision 3. The replication controller for that version must exist oc rollout undo dc/nginx --to-revision=3 2.5.1.112. oc rsh Start a shell session in a container Example usage # Open a shell session on the first container in pod 'foo' oc rsh foo # Open a shell session on the first container in pod 'foo' and namespace 'bar' # (Note that oc client specific arguments must come before the resource name and its arguments) oc rsh -n bar foo # Run the command 'cat /etc/resolv.conf' inside pod 'foo' oc rsh foo cat /etc/resolv.conf # See the configuration of your internal registry oc rsh dc/docker-registry cat config.yml # Open a shell session on the container named 'index' inside a pod of your job oc rsh -c index job/sheduled 2.5.1.113. oc rsync Copy files between a local file system and a pod Example usage # Synchronize a local directory with a pod directory oc rsync ./local/dir/ POD:/remote/dir # Synchronize a pod directory with a local directory oc rsync POD:/remote/dir/ ./local/dir 2.5.1.114. oc run Run a particular image on the cluster Example usage # Start a nginx pod oc run nginx --image=nginx # Start a hazelcast pod and let the container expose port 5701 oc run hazelcast --image=hazelcast/hazelcast --port=5701 # Start a hazelcast pod and set environment variables "DNS_DOMAIN=cluster" and "POD_NAMESPACE=default" in the container oc run hazelcast --image=hazelcast/hazelcast --env="DNS_DOMAIN=cluster" --env="POD_NAMESPACE=default" # Start a hazelcast pod and set labels "app=hazelcast" and "env=prod" in the container oc run hazelcast --image=hazelcast/hazelcast --labels="app=hazelcast,env=prod" # Dry run; print the corresponding API objects without creating them oc run nginx --image=nginx --dry-run=client # Start a nginx pod, but overload the spec with a partial set of values parsed from JSON oc run nginx --image=nginx --overrides='{ "apiVersion": "v1", "spec": { ... } }' # Start a busybox pod and keep it in the foreground, don't restart it if it exits oc run -i -t busybox --image=busybox --restart=Never # Start the nginx pod using the default command, but use custom arguments (arg1 .. argN) for that command oc run nginx --image=nginx -- <arg1> <arg2> ... <argN> # Start the nginx pod using a different command and custom arguments oc run nginx --image=nginx --command -- <cmd> <arg1> ... <argN> 2.5.1.115. oc scale Set a new size for a deployment, replica set, or replication controller Example usage # Scale a replica set named 'foo' to 3 oc scale --replicas=3 rs/foo # Scale a resource identified by type and name specified in "foo.yaml" to 3 oc scale --replicas=3 -f foo.yaml # If the deployment named mysql's current size is 2, scale mysql to 3 oc scale --current-replicas=2 --replicas=3 deployment/mysql # Scale multiple replication controllers oc scale --replicas=5 rc/foo rc/bar rc/baz # Scale stateful set named 'web' to 3 oc scale --replicas=3 statefulset/web 2.5.1.116. oc secrets link Link secrets to a service account Example usage # Add an image pull secret to a service account to automatically use it for pulling pod images oc secrets link serviceaccount-name pull-secret --for=pull # Add an image pull secret to a service account to automatically use it for both pulling and pushing build images oc secrets link builder builder-image-secret --for=pull,mount 2.5.1.117. oc secrets unlink Detach secrets from a service account Example usage # Unlink a secret currently associated with a service account oc secrets unlink serviceaccount-name secret-name another-secret-name ... 2.5.1.118. oc serviceaccounts create-kubeconfig Generate a kubeconfig file for a service account Example usage # Create a kubeconfig file for service account 'default' oc serviceaccounts create-kubeconfig 'default' > default.kubeconfig 2.5.1.119. oc serviceaccounts get-token Get a token assigned to a service account Example usage # Get the service account token from service account 'default' oc serviceaccounts get-token 'default' 2.5.1.120. oc serviceaccounts new-token Generate a new token for a service account Example usage # Generate a new token for service account 'default' oc serviceaccounts new-token 'default' # Generate a new token for service account 'default' and apply # labels 'foo' and 'bar' to the new token for identification oc serviceaccounts new-token 'default' --labels foo=foo-value,bar=bar-value 2.5.1.121. oc set build-hook Update a build hook on a build config Example usage # 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" 2.5.1.122. oc set build-secret Update a build secret on a build config Example usage # 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 2.5.1.123. oc set data Update the data within a config map or secret Example usage # Set the 'password' key of a secret oc set data secret/foo password=this_is_secret # Remove the 'password' key from a secret oc set data secret/foo password- # Update the 'haproxy.conf' key of a config map from a file on disk oc set data configmap/bar --from-file=../haproxy.conf # Update a secret with the contents of a directory, one key per file oc set data secret/foo --from-file=secret-dir 2.5.1.124. oc set deployment-hook Update a deployment hook on a deployment config Example usage # 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 2.5.1.125. oc set env Update environment variables on a pod template Example usage # Update deployment config 'myapp' with a new environment variable oc set env dc/myapp STORAGE_DIR=/local # List the environment variables defined on a build config 'sample-build' oc set env bc/sample-build --list # List the environment variables defined on all pods oc set env pods --all --list # Output modified build config in YAML oc set env bc/sample-build STORAGE_DIR=/data -o yaml # Update all containers in all replication controllers in the project to have ENV=prod oc set env rc --all ENV=prod # Import environment from a secret oc set env --from=secret/mysecret dc/myapp # Import environment from a config map with a prefix oc set env --from=configmap/myconfigmap --prefix=MYSQL_ dc/myapp # Remove the environment variable ENV from container 'c1' in all deployment configs oc set env dc --all --containers="c1" ENV- # Remove the environment variable ENV from a deployment config definition on disk and # update the deployment config on the server oc set env -f dc.json ENV- # Set some of the local shell environment into a deployment config on the server oc set env | grep RAILS_ | oc env -e - dc/myapp 2.5.1.126. oc set image Update the image of a pod template Example usage # 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 2.5.1.127. oc set image-lookup Change how images are resolved when deploying applications Example usage # Print all of the image streams and whether they resolve local names oc set image-lookup # Use local name lookup on image stream mysql oc set image-lookup mysql # Force a deployment to use local name lookup oc set image-lookup deploy/mysql # Show the current status of the deployment lookup oc set image-lookup deploy/mysql --list # Disable local name lookup on image stream mysql oc set image-lookup mysql --enabled=false # Set local name lookup on all image streams oc set image-lookup --all 2.5.1.128. oc set probe Update a probe on a pod template Example usage # Clear both readiness and liveness probes off all containers oc set probe dc/myapp --remove --readiness --liveness # Set an exec action as a liveness probe to run 'echo ok' oc set probe dc/myapp --liveness -- echo ok # Set a readiness probe to try to open a TCP socket on 3306 oc set probe rc/mysql --readiness --open-tcp=3306 # Set an HTTP startup probe for port 8080 and path /healthz over HTTP on the pod IP oc set probe dc/webapp --startup --get-url=http://:8080/healthz # Set an HTTP readiness probe for port 8080 and path /healthz over HTTP on the pod IP oc set probe dc/webapp --readiness --get-url=http://:8080/healthz # Set an HTTP readiness probe over HTTPS on 127.0.0.1 for a hostNetwork pod oc set probe dc/router --readiness --get-url=https://127.0.0.1:1936/stats # Set only the initial-delay-seconds field on all deployments oc set probe dc --all --readiness --initial-delay-seconds=30 2.5.1.129. oc set resources Update resource requests/limits on objects with pod templates Example usage # Set a deployments nginx container CPU limits to "200m and memory to 512Mi" oc set resources deployment nginx -c=nginx --limits=cpu=200m,memory=512Mi # Set the resource request and limits for all containers in nginx oc set resources deployment nginx --limits=cpu=200m,memory=512Mi --requests=cpu=100m,memory=256Mi # Remove the resource requests for resources on containers in nginx oc set resources deployment nginx --limits=cpu=0,memory=0 --requests=cpu=0,memory=0 # Print the result (in YAML format) of updating nginx container limits locally, without hitting the server oc set resources -f path/to/file.yaml --limits=cpu=200m,memory=512Mi --local -o yaml 2.5.1.130. oc set route-backends Update the backends for a route Example usage # Print the backends on the route 'web' oc set route-backends web # Set two backend services on route 'web' with 2/3rds of traffic going to 'a' oc set route-backends web a=2 b=1 # Increase the traffic percentage going to b by 10%% relative to a oc set route-backends web --adjust b=+10%% # Set traffic percentage going to b to 10%% of the traffic going to a oc set route-backends web --adjust b=10%% # Set weight of b to 10 oc set route-backends web --adjust b=10 # Set the weight to all backends to zero oc set route-backends web --zero 2.5.1.131. oc set selector Set the selector on a resource Example usage # Set the labels and selector before creating a deployment/service pair. oc create service clusterip my-svc --clusterip="None" -o yaml --dry-run | oc set selector --local -f - 'environment=qa' -o yaml | oc create -f - oc create deployment my-dep -o yaml --dry-run | oc label --local -f - environment=qa -o yaml | oc create -f - 2.5.1.132. oc set serviceaccount Update the service account of a resource Example usage # Set deployment nginx-deployment's service account to serviceaccount1 oc set serviceaccount deployment nginx-deployment serviceaccount1 # Print the result (in YAML format) of updated nginx deployment with service account from a local file, without hitting the API server oc set sa -f nginx-deployment.yaml serviceaccount1 --local --dry-run -o yaml 2.5.1.133. oc set subject Update the user, group, or service account in a role binding or cluster role binding Example usage # Update a cluster role binding for serviceaccount1 oc set subject clusterrolebinding admin --serviceaccount=namespace:serviceaccount1 # Update a role binding for user1, user2, and group1 oc set subject rolebinding admin --user=user1 --user=user2 --group=group1 # Print the result (in YAML format) of updating role binding subjects locally, without hitting the server oc create rolebinding admin --role=admin --user=admin -o yaml --dry-run | oc set subject --local -f - --user=foo -o yaml 2.5.1.134. oc set triggers Update the triggers on one or more objects Example usage # 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 2.5.1.135. oc set volumes Update volumes on a pod template Example usage # List volumes defined on all deployment configs in the current project oc set volume dc --all # Add a new empty dir volume to deployment config (dc) 'myapp' mounted under # /var/lib/myapp oc set volume dc/myapp --add --mount-path=/var/lib/myapp # Use an existing persistent volume claim (pvc) to overwrite an existing volume 'v1' oc set volume dc/myapp --add --name=v1 -t pvc --claim-name=pvc1 --overwrite # Remove volume 'v1' from deployment config 'myapp' oc set volume dc/myapp --remove --name=v1 # Create a new persistent volume claim that overwrites an existing volume 'v1' oc set volume dc/myapp --add --name=v1 -t pvc --claim-size=1G --overwrite # Change the mount point for volume 'v1' to /data oc set volume dc/myapp --add --name=v1 -m /data --overwrite # Modify the deployment config by removing volume mount "v1" from container "c1" # (and by removing the volume "v1" if no other containers have volume mounts that reference it) oc set volume dc/myapp --remove --name=v1 --containers=c1 # Add new volume based on a more complex volume source (AWS EBS, GCE PD, # Ceph, Gluster, NFS, ISCSI, ...) oc set volume dc/myapp --add -m /data --source=<json-string> 2.5.1.136. oc start-build Start a new build Example usage # Starts build from build config "hello-world" oc start-build hello-world # Starts build from a 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 2.5.1.137. oc status Show an overview of the current project Example usage # 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 2.5.1.138. oc tag Tag existing images into image streams Example usage # Tag the current image for the image stream 'openshift/ruby' and tag '2.0' into the image stream 'yourproject/ruby with tag 'tip' oc tag openshift/ruby:2.0 yourproject/ruby:tip # Tag a specific image oc tag openshift/ruby@sha256:6b646fa6bf5e5e4c7fa41056c27910e679c03ebe7f93e361e6515a9da7e258cc yourproject/ruby:tip # Tag an external container image oc tag --source=docker openshift/origin-control-plane:latest yourproject/ruby:tip # Tag an external container image and request pullthrough for it oc tag --source=docker openshift/origin-control-plane:latest yourproject/ruby:tip --reference-policy=local # Remove the specified spec tag from an image stream oc tag openshift/origin-control-plane:latest -d 2.5.1.139. oc version Print the client and server version information Example usage # Print the OpenShift client, kube-apiserver, and openshift-apiserver version information for the current context oc version # Print the OpenShift client, kube-apiserver, and openshift-apiserver version numbers for the current context oc version --short # Print the OpenShift client version information for the current context oc version --client 2.5.1.140. oc wait Experimental: Wait for a specific condition on one or many resources Example usage # Wait for the pod "busybox1" to contain the status condition of type "Ready" oc wait --for=condition=Ready pod/busybox1 # The default value of status condition is true; you can set it to false 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 2.5.1.141. oc whoami Return information about the current session Example usage # Display the currently authenticated user oc whoami 2.5.2. Additional resources OpenShift CLI administrator command reference 2.6. OpenShift CLI administrator command reference This reference provides descriptions and example commands for OpenShift CLI ( oc ) administrator commands. You must have cluster-admin or equivalent permissions to use these commands. For developer commands, see the OpenShift CLI developer command reference . Run oc adm -h to list all administrator commands or run oc <command> --help to get additional details for a specific command. 2.6.1. OpenShift CLI (oc) administrator commands 2.6.1.1. oc adm build-chain Output the inputs and dependencies of your builds Example usage # Build the dependency tree for the 'latest' tag in <image-stream> oc adm build-chain <image-stream> # Build the dependency tree for the 'v2' tag in dot format and visualize it via the dot utility oc adm build-chain <image-stream>:v2 -o dot | dot -T svg -o deps.svg # Build the dependency tree across all namespaces for the specified image stream tag found in the 'test' namespace oc adm build-chain <image-stream> -n test --all 2.6.1.2. oc adm catalog mirror Mirror an operator-registry catalog Example usage # Mirror an operator-registry image and its contents to a registry oc adm catalog mirror quay.io/my/image:latest myregistry.com # Mirror an operator-registry image and its contents to a particular namespace in a registry oc adm catalog mirror quay.io/my/image:latest myregistry.com/my-namespace # Mirror to an airgapped registry by first mirroring to files oc adm catalog mirror quay.io/my/image:latest file:///local/index oc adm catalog mirror file:///local/index/my/image:latest my-airgapped-registry.com # Configure a cluster to use a mirrored registry oc apply -f manifests/imageContentSourcePolicy.yaml # Edit the mirroring mappings and mirror with "oc image mirror" manually oc adm catalog mirror --manifests-only quay.io/my/image:latest myregistry.com oc image mirror -f manifests/mapping.txt # Delete all ImageContentSourcePolicies generated by oc adm catalog mirror oc delete imagecontentsourcepolicy -l operators.openshift.org/catalog=true 2.6.1.3. oc adm certificate approve Approve a certificate signing request Example usage # Approve CSR 'csr-sqgzp' oc adm certificate approve csr-sqgzp 2.6.1.4. oc adm certificate deny Deny a certificate signing request Example usage # Deny CSR 'csr-sqgzp' oc adm certificate deny csr-sqgzp 2.6.1.5. oc adm cordon Mark node as unschedulable Example usage # Mark node "foo" as unschedulable oc adm cordon foo 2.6.1.6. oc adm create-bootstrap-project-template Create a bootstrap project template Example usage # Output a bootstrap project template in YAML format to stdout oc adm create-bootstrap-project-template -o yaml 2.6.1.7. oc adm create-error-template Create an error page template Example usage # Output a template for the error page to stdout oc adm create-error-template 2.6.1.8. oc adm create-login-template Create a login template Example usage # Output a template for the login page to stdout oc adm create-login-template 2.6.1.9. oc adm create-provider-selection-template Create a provider selection template Example usage # Output a template for the provider selection page to stdout oc adm create-provider-selection-template 2.6.1.10. oc adm drain Drain node in preparation for maintenance Example usage # Drain node "foo", even if there are pods not managed by a replication controller, replica set, job, daemon set or stateful set on it oc adm drain foo --force # As above, but abort if there are pods not managed by a replication controller, replica set, job, daemon set or stateful set, and use a grace period of 15 minutes oc adm drain foo --grace-period=900 2.6.1.11. oc adm groups add-users Add users to a group Example usage # Add user1 and user2 to my-group oc adm groups add-users my-group user1 user2 2.6.1.12. oc adm groups new Create a new group Example usage # Add a group with no users oc adm groups new my-group # Add a group with two users oc adm groups new my-group user1 user2 # Add a group with one user and shorter output oc adm groups new my-group user1 -o name 2.6.1.13. oc adm groups prune Remove old OpenShift groups referencing missing records from an external provider Example usage # Prune all orphaned groups oc adm groups prune --sync-config=/path/to/ldap-sync-config.yaml --confirm # Prune all orphaned groups except the ones from the blacklist file oc adm groups prune --blacklist=/path/to/blacklist.txt --sync-config=/path/to/ldap-sync-config.yaml --confirm # Prune all orphaned groups from a list of specific groups specified in a whitelist file oc adm groups prune --whitelist=/path/to/whitelist.txt --sync-config=/path/to/ldap-sync-config.yaml --confirm # Prune all orphaned groups from a list of specific groups specified in a whitelist oc adm groups prune groups/group_name groups/other_name --sync-config=/path/to/ldap-sync-config.yaml --confirm 2.6.1.14. oc adm groups remove-users Remove users from a group Example usage # Remove user1 and user2 from my-group oc adm groups remove-users my-group user1 user2 2.6.1.15. oc adm groups sync Sync OpenShift groups with records from an external provider Example usage # Sync all groups with an LDAP server oc adm groups sync --sync-config=/path/to/ldap-sync-config.yaml --confirm # Sync all groups except the ones from the blacklist file with an LDAP server oc adm groups sync --blacklist=/path/to/blacklist.txt --sync-config=/path/to/ldap-sync-config.yaml --confirm # Sync specific groups specified in a whitelist file with an LDAP server oc adm groups sync --whitelist=/path/to/whitelist.txt --sync-config=/path/to/sync-config.yaml --confirm # Sync all OpenShift groups that have been synced previously with an LDAP server oc adm groups sync --type=openshift --sync-config=/path/to/ldap-sync-config.yaml --confirm # Sync specific OpenShift groups if they have been synced previously with an LDAP server oc adm groups sync groups/group1 groups/group2 groups/group3 --sync-config=/path/to/sync-config.yaml --confirm 2.6.1.16. oc adm inspect Collect debugging data for a given resource Example usage # Collect debugging data for the "openshift-apiserver" clusteroperator oc adm inspect clusteroperator/openshift-apiserver # Collect debugging data for the "openshift-apiserver" and "kube-apiserver" clusteroperators oc adm inspect clusteroperator/openshift-apiserver clusteroperator/kube-apiserver # Collect debugging data for all clusteroperators oc adm inspect clusteroperator # Collect debugging data for all clusteroperators and clusterversions oc adm inspect clusteroperators,clusterversions 2.6.1.17. oc adm migrate template-instances Update template instances to point to the latest group-version-kinds Example usage # Perform a dry-run of updating all objects oc adm migrate template-instances # To actually perform the update, the confirm flag must be appended oc adm migrate template-instances --confirm 2.6.1.18. oc adm must-gather Launch a new instance of a pod for gathering debug information Example usage # Gather information using the default plug-in image and command, writing into ./must-gather.local.<rand> oc adm must-gather # Gather information with a specific local folder to copy to oc adm must-gather --dest-dir=/local/directory # Gather audit information oc adm must-gather -- /usr/bin/gather_audit_logs # Gather information using multiple plug-in images oc adm must-gather --image=quay.io/kubevirt/must-gather --image=quay.io/openshift/origin-must-gather # Gather information using a specific image stream plug-in oc adm must-gather --image-stream=openshift/must-gather:latest # Gather information using a specific image, command, and pod-dir oc adm must-gather --image=my/image:tag --source-dir=/pod/directory -- myspecial-command.sh 2.6.1.19. oc adm new-project Create a new project Example usage # Create a new project using a node selector oc adm new-project myproject --node-selector='type=user-node,region=east' 2.6.1.20. oc adm node-logs Display and filter node logs Example usage # Show kubelet logs from all masters oc adm node-logs --role master -u kubelet # See what logs are available in masters in /var/logs oc adm node-logs --role master --path=/ # Display cron log file from all masters oc adm node-logs --role master --path=cron 2.6.1.21. oc adm pod-network isolate-projects Isolate project network Example usage # Provide isolation for project p1 oc adm pod-network isolate-projects <p1> # Allow all projects with label name=top-secret to have their own isolated project network oc adm pod-network isolate-projects --selector='name=top-secret' 2.6.1.22. oc adm pod-network join-projects Join project network Example usage # Allow project p2 to use project p1 network oc adm pod-network join-projects --to=<p1> <p2> # Allow all projects with label name=top-secret to use project p1 network oc adm pod-network join-projects --to=<p1> --selector='name=top-secret' 2.6.1.23. oc adm pod-network make-projects-global Make project network global Example usage # Allow project p1 to access all pods in the cluster and vice versa oc adm pod-network make-projects-global <p1> # Allow all projects with label name=share to access all pods in the cluster and vice versa oc adm pod-network make-projects-global --selector='name=share' 2.6.1.24. oc adm policy add-role-to-user Add a role to users or service accounts for the current project Example usage # Add the 'view' role to user1 for the current project oc adm policy add-role-to-user view user1 # Add the 'edit' role to serviceaccount1 for the current project oc adm policy add-role-to-user edit -z serviceaccount1 2.6.1.25. oc adm policy add-scc-to-group Add a security context constraint to groups Example usage # Add the 'restricted' security context constraint to group1 and group2 oc adm policy add-scc-to-group restricted group1 group2 2.6.1.26. oc adm policy add-scc-to-user Add a security context constraint to users or a service account Example usage # Add the 'restricted' security context constraint to user1 and user2 oc adm policy add-scc-to-user restricted user1 user2 # Add the 'privileged' security context constraint to serviceaccount1 in the current namespace oc adm policy add-scc-to-user privileged -z serviceaccount1 2.6.1.27. oc adm policy scc-review Check which service account can create a pod Example usage # Check whether service accounts sa1 and sa2 can admit a pod with a template pod spec specified in my_resource.yaml # Service Account specified in myresource.yaml file is ignored oc adm 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 adm 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 adm 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 adm policy scc-review -f myresource_with_no_sa.yaml 2.6.1.28. oc adm policy scc-subject-review Check whether a user or a service account can create a pod Example usage # Check whether user bob can create a pod specified in myresource.yaml oc adm 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 adm 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 adm policy scc-subject-review -f myresourcewithsa.yaml 2.6.1.29. oc adm prune builds Remove old completed and failed builds Example usage # Dry run deleting older completed and failed builds and also including # all builds whose associated build config no longer exists oc adm prune builds --orphans # To actually perform the prune operation, the confirm flag must be appended oc adm prune builds --orphans --confirm 2.6.1.30. oc adm prune deployments Remove old completed and failed deployment configs Example usage # Dry run deleting all but the last complete deployment for every deployment config oc adm prune deployments --keep-complete=1 # To actually perform the prune operation, the confirm flag must be appended oc adm prune deployments --keep-complete=1 --confirm 2.6.1.31. oc adm prune groups Remove old OpenShift groups referencing missing records from an external provider Example usage # Prune all orphaned groups oc adm prune groups --sync-config=/path/to/ldap-sync-config.yaml --confirm # Prune all orphaned groups except the ones from the blacklist file oc adm prune groups --blacklist=/path/to/blacklist.txt --sync-config=/path/to/ldap-sync-config.yaml --confirm # Prune all orphaned groups from a list of specific groups specified in a whitelist file oc adm prune groups --whitelist=/path/to/whitelist.txt --sync-config=/path/to/ldap-sync-config.yaml --confirm # Prune all orphaned groups from a list of specific groups specified in a whitelist oc adm prune groups groups/group_name groups/other_name --sync-config=/path/to/ldap-sync-config.yaml --confirm 2.6.1.32. oc adm prune images Remove unreferenced images Example usage # See what the prune command would delete if only images and their referrers were more than an hour old # and obsoleted by 3 newer revisions under the same tag were considered oc adm prune images --keep-tag-revisions=3 --keep-younger-than=60m # To actually perform the prune operation, the confirm flag must be appended oc adm prune images --keep-tag-revisions=3 --keep-younger-than=60m --confirm # See what the prune command would delete if we are interested in removing images # exceeding currently set limit ranges ('openshift.io/Image') oc adm prune images --prune-over-size-limit # To actually perform the prune operation, the confirm flag must be appended oc adm prune images --prune-over-size-limit --confirm # Force the insecure http protocol with the particular registry host name oc adm prune images --registry-url=http://registry.example.org --confirm # Force a secure connection with a custom certificate authority to the particular registry host name oc adm prune images --registry-url=registry.example.org --certificate-authority=/path/to/custom/ca.crt --confirm 2.6.1.33. oc adm release extract Extract the contents of an update payload to disk Example usage # Use git to check out the source code for the current cluster release to DIR oc adm release extract --git=DIR # Extract cloud credential requests for AWS oc adm release extract --credentials-requests --cloud=aws 2.6.1.34. oc adm release info Display information about a release Example usage # Show information about the cluster's current release oc adm release info # Show the source code that comprises a release oc adm release info 4.2.2 --commit-urls # Show the source code difference between two releases oc adm release info 4.2.0 4.2.2 --commits # Show where the images referenced by the release are located oc adm release info quay.io/openshift-release-dev/ocp-release:4.2.2 --pullspecs 2.6.1.35. oc adm release mirror Mirror a release to a different image registry location Example usage # Perform a dry run showing what would be mirrored, including the mirror objects oc adm release mirror 4.3.0 --to myregistry.local/openshift/release \ --release-image-signature-to-dir /tmp/releases --dry-run # Mirror a release into the current directory oc adm release mirror 4.3.0 --to file://openshift/release \ --release-image-signature-to-dir /tmp/releases # Mirror a release to another directory in the default location oc adm release mirror 4.3.0 --to-dir /tmp/releases # Upload a release from the current directory to another server oc adm release mirror --from file://openshift/release --to myregistry.com/openshift/release \ --release-image-signature-to-dir /tmp/releases # Mirror the 4.3.0 release to repository registry.example.com and apply signatures to connected cluster oc adm release mirror --from=quay.io/openshift-release-dev/ocp-release:4.3.0-x86_64 \ --to=registry.example.com/your/repository --apply-release-image-signature 2.6.1.36. oc adm release new Create a new OpenShift release Example usage # Create a release from the latest origin images and push to a DockerHub repo oc adm release new --from-image-stream=4.1 -n origin --to-image docker.io/mycompany/myrepo:latest # Create a new release with updated metadata from a release oc adm release new --from-release registry.svc.ci.openshift.org/origin/release:v4.1 --name 4.1.1 \ -- 4.1.0 --metadata ... --to-image docker.io/mycompany/myrepo:latest # Create a new release and override a single image oc adm release new --from-release registry.svc.ci.openshift.org/origin/release:v4.1 \ cli=docker.io/mycompany/cli:latest --to-image docker.io/mycompany/myrepo:latest # Run a verification pass to ensure the release can be reproduced oc adm release new --from-release registry.svc.ci.openshift.org/origin/release:v4.1 2.6.1.37. oc adm taint Update the taints on one or more nodes Example usage # Update node 'foo' with a taint with key 'dedicated' and value 'special-user' and effect 'NoSchedule' # If a taint with that key and effect already exists, its value is replaced as specified oc adm taint nodes foo dedicated=special-user:NoSchedule # Remove from node 'foo' the taint with key 'dedicated' and effect 'NoSchedule' if one exists oc adm taint nodes foo dedicated:NoSchedule- # Remove from node 'foo' all the taints with key 'dedicated' oc adm taint nodes foo dedicated- # Add a taint with key 'dedicated' on nodes having label mylabel=X oc adm taint node -l myLabel=X dedicated=foo:PreferNoSchedule # Add to node 'foo' a taint with key 'bar' and no value oc adm taint nodes foo bar:NoSchedule 2.6.1.38. oc adm top images Show usage statistics for images Example usage # Show usage statistics for images oc adm top images 2.6.1.39. oc adm top imagestreams Show usage statistics for image streams Example usage # Show usage statistics for image streams oc adm top imagestreams 2.6.1.40. oc adm top node Display resource (CPU/memory) usage of nodes Example usage # Show metrics for all nodes oc adm top node # Show metrics for a given node oc adm top node NODE_NAME 2.6.1.41. oc adm top pod Display resource (CPU/memory) usage of pods Example usage # Show metrics for all pods in the default namespace oc adm top pod # Show metrics for all pods in the given namespace oc adm top pod --namespace=NAMESPACE # Show metrics for a given pod and its containers oc adm top pod POD_NAME --containers # Show metrics for the pods defined by label name=myLabel oc adm top pod -l name=myLabel 2.6.1.42. oc adm uncordon Mark node as schedulable Example usage # Mark node "foo" as schedulable oc adm uncordon foo 2.6.1.43. oc adm upgrade Upgrade a cluster Example usage # Review the available cluster updates oc adm upgrade # Update to the latest version oc adm upgrade --to-latest=true 2.6.1.44. oc adm verify-image-signature Verify the image identity contained in the image signature Example usage # Verify the image signature and identity using the local GPG keychain oc adm verify-image-signature sha256:c841e9b64e4579bd56c794bdd7c36e1c257110fd2404bebbb8b613e4935228c4 \ --expected-identity=registry.local:5000/foo/bar:v1 # Verify the image signature and identity using the local GPG keychain and save the status oc adm verify-image-signature sha256:c841e9b64e4579bd56c794bdd7c36e1c257110fd2404bebbb8b613e4935228c4 \ --expected-identity=registry.local:5000/foo/bar:v1 --save # Verify the image signature and identity via exposed registry route oc adm verify-image-signature sha256:c841e9b64e4579bd56c794bdd7c36e1c257110fd2404bebbb8b613e4935228c4 \ --expected-identity=registry.local:5000/foo/bar:v1 \ --registry-url=docker-registry.foo.com # Remove all signature verifications from the image oc adm verify-image-signature sha256:c841e9b64e4579bd56c794bdd7c36e1c257110fd2404bebbb8b613e4935228c4 --remove-all 2.6.2. Additional resources OpenShift CLI developer command reference 2.7. Usage of oc and kubectl commands The Kubernetes command-line interface (CLI), kubectl , can be used to run commands against a Kubernetes cluster. Because OpenShift Container Platform is a certified Kubernetes distribution, you can use the supported kubectl binaries that ship with OpenShift Container Platform, or you can gain extended functionality by using the oc binary. 2.7.1. The oc binary The oc binary offers the same capabilities as the kubectl binary, but it extends to natively support additional OpenShift Container Platform features, including: Full support for OpenShift Container Platform resources Resources such as DeploymentConfig , BuildConfig , Route , ImageStream , and ImageStreamTag objects are specific to OpenShift Container Platform distributions, and build upon standard Kubernetes primitives. Authentication The oc binary offers a built-in login command that allows authentication and enables you to work with OpenShift Container Platform projects, which map Kubernetes namespaces to authenticated users. See Understanding authentication for more information. Additional commands The additional command oc new-app , for example, makes it easier to get new applications started using existing source code or pre-built images. Similarly, the additional command oc new-project makes it easier to start a project that you can switch to as your default. Important If you installed an earlier version of the oc binary, you cannot use it to complete all of the commands in OpenShift Container Platform 4.10. If you want the latest features, you must download and install the latest version of the oc binary corresponding to your OpenShift Container Platform server version. Non-security API changes will involve, at minimum, two minor releases (4.1 to 4.2 to 4.3, for example) to allow older oc binaries to update. Using new capabilities might require newer oc binaries. A 4.3 server might have additional capabilities that a 4.2 oc binary cannot use and a 4.3 oc binary might have additional capabilities that are unsupported by a 4.2 server. Table 2.2. Compatibility Matrix X.Y ( oc Client) X.Y+N footnote:versionpolicyn[Where N is a number greater than or equal to 1.] ( oc Client) X.Y (Server) X.Y+N footnote:versionpolicyn[] (Server) Fully compatible. oc client might not be able to access server features. oc client might provide options and features that might not be compatible with the accessed server. 2.7.2. The kubectl binary The kubectl binary is provided as a means to support existing workflows and scripts for new OpenShift Container Platform users coming from a standard Kubernetes environment, or for those who prefer to use the kubectl CLI. Existing users of kubectl can continue to use the binary to interact with Kubernetes primitives, with no changes required to the OpenShift Container Platform cluster. You can install the supported kubectl binary by following the steps to Install the OpenShift CLI . The kubectl binary is included in the archive if you download the binary, or is installed when you install the CLI by using an RPM. For more information, see the kubectl documentation .

Commands:
tar xvf <file>
echo USDPATH
oc <command>
C:\> path
C:\> oc <command>
echo USDPATH
oc <command>
tar xvf <file>
echo USDPATH
oc <command>
C:\> path
C:\> oc <command>
echo USDPATH
oc <command>
subscription-manager register
subscription-manager refresh
subscription-manager list --available --matches '*OpenShift*'
subscription-manager attach --pool=<pool_id>
subscription-manager repos --enable="rhocp-4.10-for-rhel-8-x86_64-rpms"
subscription-manager repos --enable="rhel-7-server-ose-4.10-rpms"
yum install openshift-clients
oc <command>
brew install openshift-cli
oc login -u user1
Server [https://localhost:8443]: https://openshift.example.com:6443 1 The server uses a certificate signed by an unknown authority. You can bypass the certificate check, but any data you send to the server could be intercepted by others. Use insecure connections? (y/n): y 2 Authentication required for https://openshift.example.com:6443 (openshift) Username: user1 Password: 3 Login successful. You don't have any projects. You can try to create a new project, by running oc new-project <projectname> Welcome! See 'oc help' to get started.
oc new-project my-project
Now using project "my-project" on server "https://openshift.example.com:6443".
oc new-app https://github.com/sclorg/cakephp-ex
--> Found image 40de956 (9 days old) in imagestream "openshift/php" under tag "7.2" for "php" Run 'oc status' to view your app.
oc get pods -o wide
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE cakephp-ex-1-build 0/1 Completed 0 5m45s 10.131.0.10 ip-10-0-141-74.ec2.internal <none> cakephp-ex-1-deploy 0/1 Completed 0 3m44s 10.129.2.9 ip-10-0-147-65.ec2.internal <none> cakephp-ex-1-ktz97 1/1 Running 0 3m33s 10.128.2.11 ip-10-0-168-105.ec2.internal <none>
oc logs cakephp-ex-1-deploy
--> Scaling cakephp-ex-1 to 1 --> Success
oc project
Using project "my-project" on server "https://openshift.example.com:6443".
oc status
In project my-project on server https://openshift.example.com:6443 svc/cakephp-ex - 172.30.236.80 ports 8080, 8443 dc/cakephp-ex deploys istag/cakephp-ex:latest <- bc/cakephp-ex source builds https://github.com/sclorg/cakephp-ex on openshift/php:7.2 deployment #1 deployed 2 minutes ago - 1 pod 3 infos identified, use 'oc status --suggest' to see details.
oc api-resources
NAME SHORTNAMES APIGROUP NAMESPACED KIND bindings true Binding componentstatuses cs false ComponentStatus configmaps cm true ConfigMap
oc help
OpenShift Client This client helps you develop, build, deploy, and run your applications on any OpenShift or Kubernetes compatible platform. It also includes the administrative commands for managing a cluster under the 'adm' subcommand. Usage: oc [flags] Basic Commands: login Log in to a server new-project Request a new project new-app Create a new application
oc create --help
Create a resource by filename or stdin JSON and YAML formats are accepted. Usage: oc create -f FILENAME [flags]
oc explain pods
KIND: Pod VERSION: v1 DESCRIPTION: Pod is a collection of containers that can run on a host. This resource is created by clients and scheduled onto hosts. FIELDS: apiVersion <string> APIVersion defines the versioned schema of this representation of an object. Servers should convert recognized schemas to the latest internal value, and may reject unrecognized values. More info: https://git.k8s.io/community/contributors/devel/api-conventions.md#resources
oc logout
Logged "user1" out on "https://openshift.example.com"
oc completion bash > oc_bash_completion
sudo cp oc_bash_completion /etc/bash_completion.d/
cat >>~/.zshrc<<EOF if [ USDcommands[oc] ]; then source <(oc completion zsh) compdef _oc oc fi EOF
apiVersion: v1 clusters: 1 - cluster: insecure-skip-tls-verify: true server: https://openshift1.example.com:8443 name: openshift1.example.com:8443 - cluster: insecure-skip-tls-verify: true server: https://openshift2.example.com:8443 name: openshift2.example.com:8443 contexts: 2 - context: cluster: openshift1.example.com:8443 namespace: alice-project user: alice/openshift1.example.com:8443 name: alice-project/openshift1.example.com:8443/alice - context: cluster: openshift1.example.com:8443 namespace: joe-project user: alice/openshift1.example.com:8443 name: joe-project/openshift1/alice current-context: joe-project/openshift1.example.com:8443/alice 3 kind: Config preferences: {} users: 4 - name: alice/openshift1.example.com:8443 user: token: xZHd2piv5_9vQrg-SKXRJ2Dsl9SceNJdhNTljEKTb8k
oc status
status In project Joe's Project (joe-project) service database (172.30.43.12:5434 -> 3306) database deploys docker.io/openshift/mysql-55-centos7:latest #1 deployed 25 minutes ago - 1 pod service frontend (172.30.159.137:5432 -> 8080) frontend deploys origin-ruby-sample:latest <- builds https://github.com/openshift/ruby-hello-world with joe-project/ruby-20-centos7:latest #1 deployed 22 minutes ago - 2 pods To see more information about a service or deployment, use 'oc describe service <name>' or 'oc describe dc <name>'. You can use 'oc get all' to see lists of each of the types described in this example.
oc project
Using project "joe-project" from context named "joe-project/openshift1.example.com:8443/alice" on server "https://openshift1.example.com:8443".
oc project alice-project
Now using project "alice-project" on server "https://openshift1.example.com:8443".
oc login -u system:admin -n default
oc config set-cluster <cluster_nickname> [--server=<master_ip_or_fqdn>] [--certificate-authority=<path/to/certificate/authority>] [--api-version=<apiversion>] [--insecure-skip-tls-verify=true]
oc config set-context <context_nickname> [--cluster=<cluster_nickname>] [--user=<user_nickname>] [--namespace=<namespace>]
oc config use-context <context_nickname>
oc config set <property_name> <property_value>
oc config unset <property_name>
oc config view
oc config view --config=<specific_filename>
oc login https://openshift1.example.com --token=ns7yVhuRNpDM9cgzfhhxQ7bM5s7N2ZVrkZepSRf4LC0
oc config view
apiVersion: v1 clusters: - cluster: insecure-skip-tls-verify: true server: https://openshift1.example.com name: openshift1-example-com contexts: - context: cluster: openshift1-example-com namespace: default user: alice/openshift1-example-com name: default/openshift1-example-com/alice current-context: default/openshift1-example-com/alice kind: Config preferences: {} users: - name: alice/openshift1.example.com user: token: ns7yVhuRNpDM9cgzfhhxQ7bM5s7N2ZVrkZepSRf4LC0
oc config set-context `oc config current-context` --namespace=<project_name>
oc whoami -c
#!/bin/bash optional argument handling if [[ "USD1" == "version" ]] then echo "1.0.0" exit 0 fi optional argument handling if [[ "USD1" == "config" ]] then echo USDKUBECONFIG exit 0 fi echo "I am a plugin named kubectl-foo"
chmod +x <plugin_file>
sudo mv <plugin_file> /usr/local/bin/.
oc plugin list
The following compatible plugins are available: /usr/local/bin/<plugin_file>
oc ns
Update pod 'foo' with the annotation 'description' and the value 'my frontend' # If the same annotation is set multiple times, only the last value will be applied oc annotate pods foo description='my frontend' # Update a pod identified by type and name in "pod.json" oc annotate -f pod.json description='my frontend' # Update pod 'foo' with the annotation 'description' and the value 'my frontend running nginx', overwriting any existing value oc annotate --overwrite pods foo description='my frontend running nginx' # Update all pods in the namespace oc annotate pods --all description='my frontend running nginx' # Update pod 'foo' only if the resource is unchanged from version 1 oc annotate pods foo description='my frontend running nginx' --resource-version=1 # Update pod 'foo' by removing an annotation named 'description' if it exists # Does not require the --overwrite flag oc annotate pods foo description-
Print the supported API resources oc api-resources # Print the supported API resources with more information oc api-resources -o wide # Print the supported API resources sorted by a column oc api-resources --sort-by=name # Print the supported namespaced resources oc api-resources --namespaced=true # Print the supported non-namespaced resources oc api-resources --namespaced=false # Print the supported API resources with a specific APIGroup oc api-resources --api-group=extensions
Print the supported API versions oc api-versions
Apply the configuration in pod.json to a pod oc apply -f ./pod.json # Apply resources from a directory containing kustomization.yaml - e.g. dir/kustomization.yaml oc apply -k dir/ # Apply the JSON passed into stdin to a pod cat pod.json | oc apply -f - # 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
Edit the last-applied-configuration annotations by type/name in YAML oc apply edit-last-applied deployment/nginx # Edit the last-applied-configuration annotations by file in JSON oc apply edit-last-applied -f deploy.yaml -o json
Set the last-applied-configuration of a resource to match the contents of a file oc apply set-last-applied -f deploy.yaml # Execute set-last-applied against each configuration file in a directory oc apply set-last-applied -f path/ # Set the last-applied-configuration of a resource to match the contents of a file; will create the annotation if it does not already exist oc apply set-last-applied -f deploy.yaml --create-annotation=true
View the last-applied-configuration annotations by type/name in YAML oc apply view-last-applied deployment/nginx # View the last-applied-configuration annotations by file in JSON oc apply view-last-applied -f deploy.yaml -o json
Get output from running pod mypod; use the 'oc.kubernetes.io/default-container' annotation # for selecting the container to be attached or the first container in the pod will be chosen oc attach mypod # Get output from ruby-container from pod mypod oc attach mypod -c ruby-container # Switch to raw terminal mode; sends stdin to 'bash' in ruby-container from pod mypod # and sends stdout/stderr from 'bash' back to the client oc attach mypod -c ruby-container -i -t # Get output from the first pod of a replica set named nginx oc attach rs/nginx
Check to see if I can create pods in any namespace oc auth can-i create pods --all-namespaces # Check to see if I can list deployments in my current namespace oc auth can-i list deployments.apps # Check to see if I can do everything in my current namespace ("*" means all) oc auth can-i '*' '*' # Check to see if I can get the job named "bar" in namespace "foo" oc auth can-i list jobs.batch/bar -n foo # Check to see if I can read pod logs oc auth can-i get pods --subresource=log # Check to see if I can access the URL /logs/ oc auth can-i get /logs/ # List all allowed actions in namespace "foo" oc auth can-i --list --namespace=foo
Reconcile RBAC resources from a file oc auth reconcile -f my-rbac-rules.yaml
Auto scale a deployment "foo", with the number of pods between 2 and 10, no target CPU utilization specified so a default autoscaling policy will be used oc autoscale deployment foo --min=2 --max=10 # Auto scale a replication controller "foo", with the number of pods between 1 and 5, target CPU utilization at 80% oc autoscale rc foo --max=5 --cpu-percent=80
Cancel the build with the given name oc cancel-build ruby-build-2 # Cancel the named build and print the build logs oc cancel-build ruby-build-2 --dump-logs # Cancel the named build and create a new one with the same parameters oc cancel-build ruby-build-2 --restart # Cancel multiple builds oc cancel-build ruby-build-1 ruby-build-2 ruby-build-3 # Cancel all builds created from the 'ruby-build' build config that are in the 'new' state oc cancel-build bc/ruby-build --state=new
Print the address of the control plane and cluster services oc cluster-info
Dump current cluster state to stdout oc cluster-info dump # Dump current cluster state to /path/to/cluster-state oc cluster-info dump --output-directory=/path/to/cluster-state # Dump all namespaces to stdout oc cluster-info dump --all-namespaces # Dump a set of namespaces to /path/to/cluster-state oc cluster-info dump --namespaces default,kube-system --output-directory=/path/to/cluster-state
Installing bash completion on macOS using homebrew ## If running Bash 3.2 included with macOS brew install bash-completion ## or, if running Bash 4.1+ brew install bash-completion@2 ## If oc is installed via homebrew, this should start working immediately ## If you've installed via other means, you may need add the completion to your completion directory oc completion bash > USD(brew --prefix)/etc/bash_completion.d/oc # Installing bash completion on Linux ## If bash-completion is not installed on Linux, install the 'bash-completion' package ## via your distribution's package manager. ## Load the oc completion code for bash into the current shell source <(oc completion bash) ## Write bash completion code to a file and source it from .bash_profile oc completion bash > ~/.kube/completion.bash.inc printf " # Kubectl shell completion source 'USDHOME/.kube/completion.bash.inc' " >> USDHOME/.bash_profile source USDHOME/.bash_profile # Load the oc completion code for zsh[1] into the current shell source <(oc completion zsh) # Set the oc completion code for zsh[1] to autoload on startup oc completion zsh > "USD{fpath[1]}/_oc" # Load the oc completion code for fish[2] into the current shell oc completion fish | source # To load completions for each session, execute once: oc completion fish > ~/.config/fish/completions/oc.fish # Load the oc completion code for powershell into the current shell oc completion powershell | Out-String | Invoke-Expression # Set oc completion code for powershell to run on startup ## Save completion code to a script and execute in the profile oc completion powershell > USDHOME\.kube\completion.ps1 Add-Content USDPROFILE "USDHOME\.kube\completion.ps1" ## Execute completion code in the profile Add-Content USDPROFILE "if (Get-Command oc -ErrorAction SilentlyContinue) { oc completion powershell | Out-String | Invoke-Expression }" ## Add completion code directly to the USDPROFILE script oc completion powershell >> USDPROFILE
Display the current-context oc config current-context
Delete the minikube cluster oc config delete-cluster minikube
Delete the context for the minikube cluster oc config delete-context minikube
Delete the minikube user oc config delete-user minikube
List the clusters that oc knows about oc config get-clusters
List all the contexts in your kubeconfig file oc config get-contexts # Describe one context in your kubeconfig file oc config get-contexts my-context
List the users that oc knows about oc config get-users
Rename the context 'old-name' to 'new-name' in your kubeconfig file oc config rename-context old-name new-name
Set the server field on the my-cluster cluster to https://1.2.3.4 oc config set clusters.my-cluster.server https://1.2.3.4 # Set the certificate-authority-data field on the my-cluster cluster oc config set clusters.my-cluster.certificate-authority-data USD(echo "cert_data_here" | base64 -i -) # Set the cluster field in the my-context context to my-cluster oc config set contexts.my-context.cluster my-cluster # Set the client-key-data field in the cluster-admin user using --set-raw-bytes option oc config set users.cluster-admin.client-key-data cert_data_here --set-raw-bytes=true
Set only the server field on the e2e cluster entry without touching other values oc config set-cluster e2e --server=https://1.2.3.4 # Embed certificate authority data for the e2e cluster entry oc config set-cluster e2e --embed-certs --certificate-authority=~/.kube/e2e/kubernetes.ca.crt # Disable cert checking for the dev 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 the user field on the gce context entry without touching other values oc config set-context gce --user=cluster-admin
Set only the "client-key" field on the "cluster-admin" # entry, without touching other values oc config set-credentials cluster-admin --client-key=~/.kube/admin.key # Set basic auth for the "cluster-admin" entry oc config set-credentials cluster-admin --username=admin --password=uXFGweU9l35qcif # Embed client certificate data in the "cluster-admin" entry oc config set-credentials cluster-admin --client-certificate=~/.kube/admin.crt --embed-certs=true # Enable the Google Compute Platform auth provider for the "cluster-admin" entry oc config set-credentials cluster-admin --auth-provider=gcp # Enable the OpenID Connect auth provider for the "cluster-admin" entry with additional args oc config set-credentials cluster-admin --auth-provider=oidc --auth-provider-arg=client-id=foo --auth-provider-arg=client-secret=bar # Remove the "client-secret" config value for the OpenID Connect auth provider for the "cluster-admin" entry oc config set-credentials cluster-admin --auth-provider=oidc --auth-provider-arg=client-secret- # Enable new exec auth plugin for the "cluster-admin" entry oc config set-credentials cluster-admin --exec-command=/path/to/the/executable --exec-api-version=client.authentication.k8s.io/v1beta1 # Define new exec auth plugin args for the "cluster-admin" entry oc config set-credentials cluster-admin --exec-arg=arg1 --exec-arg=arg2 # Create or update exec auth plugin environment variables for the "cluster-admin" entry oc config set-credentials cluster-admin --exec-env=key1=val1 --exec-env=key2=val2 # Remove exec auth plugin environment variables for the "cluster-admin" entry oc config set-credentials cluster-admin --exec-env=var-to-remove-
Unset the current-context oc config unset current-context # Unset namespace in foo context oc config unset contexts.foo.namespace
Use the context for the minikube cluster oc config use-context minikube
Show merged kubeconfig settings oc config view # Show merged kubeconfig settings and raw certificate data oc config view --raw # Get the password for the e2e user oc config view -o jsonpath='{.users[?(@.name == "e2e")].user.password}'
!!!Important Note!!! # Requires that the 'tar' binary is present in your container # image. If 'tar' is not present, 'oc cp' will fail. # # For advanced use cases, such as symlinks, wildcard expansion or # file mode preservation, consider using 'oc exec'. # Copy /tmp/foo local file to /tmp/bar in a remote pod in namespace <some-namespace> tar cf - /tmp/foo | oc exec -i -n <some-namespace> <some-pod> -- tar xf - -C /tmp/bar # Copy /tmp/foo from a remote pod to /tmp/bar locally oc exec -n <some-namespace> <some-pod> -- tar cf - /tmp/foo | tar xf - -C /tmp/bar # Copy /tmp/foo_dir local directory to /tmp/bar_dir in a remote pod in the default namespace oc cp /tmp/foo_dir <some-pod>:/tmp/bar_dir # Copy /tmp/foo local file to /tmp/bar in a remote pod in a specific container oc cp /tmp/foo <some-pod>:/tmp/bar -c <specific-container> # Copy /tmp/foo local file to /tmp/bar in a remote pod in namespace <some-namespace> oc cp /tmp/foo <some-namespace>/<some-pod>:/tmp/bar # Copy /tmp/foo from a remote pod to /tmp/bar locally oc cp <some-namespace>/<some-pod>:/tmp/foo /tmp/bar
Create a pod using the data in pod.json oc create -f ./pod.json # Create a pod based on the JSON passed into stdin cat pod.json | oc create -f - # Edit the data in docker-registry.yaml in JSON then create the resource using the edited data oc create -f docker-registry.yaml --edit -o json
Create a new build oc create build myapp
Create a cluster resource quota limited to 10 pods oc create clusterresourcequota limit-bob --project-annotation-selector=openshift.io/requester=user-bob --hard=pods=10
Create a cluster role named "pod-reader" that allows user to perform "get", "watch" and "list" on pods 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"
Create a cluster role binding for user1, user2, and group1 using the cluster-admin cluster role oc create clusterrolebinding cluster-admin --clusterrole=cluster-admin --user=user1 --user=user2 --group=group1
Create a new config map named my-config based on folder bar oc create configmap my-config --from-file=path/to/bar # Create a new config map named my-config with specified keys instead of file basenames on disk oc create configmap my-config --from-file=key1=/path/to/bar/file1.txt --from-file=key2=/path/to/bar/file2.txt # Create a new config map named my-config with key1=config1 and key2=config2 oc create configmap my-config --from-literal=key1=config1 --from-literal=key2=config2 # Create a new config map named my-config from the key=value pairs in the file oc create configmap my-config --from-file=path/to/bar # Create a new config map named my-config from an env file oc create configmap my-config --from-env-file=path/to/foo.env --from-env-file=path/to/bar.env
Create a cron job oc create cronjob my-job --image=busybox --schedule="*/1 * * * *" # Create a cron job with a command oc create cronjob my-job --image=busybox --schedule="*/1 * * * *" -- date
Create a deployment named my-dep that runs the busybox image oc create deployment my-dep --image=busybox # Create a deployment with a command oc create deployment my-dep --image=busybox -- date # Create a deployment named my-dep that runs the nginx image with 3 replicas oc create deployment my-dep --image=nginx --replicas=3 # Create a deployment named my-dep that runs the busybox image and expose port 5701 oc create deployment my-dep --image=busybox --port=5701
Create an nginx deployment config named my-nginx oc create deploymentconfig my-nginx --image=nginx
Create an identity with identity provider "acme_ldap" and the identity provider username "adamjones" oc create identity acme_ldap:adamjones
Create a new image stream oc create imagestream mysql
Create a new image stream tag based on an image in a remote registry oc create imagestreamtag mysql:latest --from-image=myregistry.local/mysql/mysql:5.0
Create a single ingress called 'simple' that directs requests to foo.com/bar to svc # svc1:8080 with a tls secret "my-cert" oc create ingress simple --rule="foo.com/bar=svc1:8080,tls=my-cert" # Create a catch all ingress of "/path" pointing to service svc:port and Ingress Class as "otheringress" oc create ingress catch-all --class=otheringress --rule="/path=svc:port" # Create an ingress with two annotations: ingress.annotation1 and ingress.annotations2 oc create ingress annotated --class=default --rule="foo.com/bar=svc:port" --annotation ingress.annotation1=foo --annotation ingress.annotation2=bla # Create an ingress with the same host and multiple paths oc create ingress multipath --class=default --rule="foo.com/=svc:port" --rule="foo.com/admin/=svcadmin:portadmin" # Create an ingress with multiple hosts and the pathType as Prefix oc create ingress ingress1 --class=default --rule="foo.com/path*=svc:8080" --rule="bar.com/admin*=svc2:http" # Create an ingress with TLS enabled using the default ingress certificate and different path types oc create ingress ingtls --class=default --rule="foo.com/=svc:https,tls" --rule="foo.com/path/subpath*=othersvc:8080" # Create an ingress with TLS enabled using a specific secret and pathType as Prefix oc create ingress ingsecret --class=default --rule="foo.com/*=svc:8080,tls=secret1" # Create an ingress with a default backend oc create ingress ingdefault --class=default --default-backend=defaultsvc:http --rule="foo.com/*=svc:8080,tls=secret1"
Create a job oc create job my-job --image=busybox # Create a job with a command oc create job my-job --image=busybox -- date # Create a job from a cron job named "a-cronjob" oc create job test-job --from=cronjob/a-cronjob
Create a new namespace named my-namespace oc create namespace my-namespace
Create a pod disruption budget named my-pdb that will select all pods with the app=rails label # and require at least one of them being available at any point in time oc create poddisruptionbudget my-pdb --selector=app=rails --min-available=1 # Create a pod disruption budget named my-pdb that will select all pods with the app=nginx label # and require at least half of the pods selected to be available at any point in time oc create pdb my-pdb --selector=app=nginx --min-available=50%
Create a priority class named high-priority oc create priorityclass high-priority --value=1000 --description="high priority" # Create a priority class named default-priority that is considered as the global default priority oc create priorityclass default-priority --value=1000 --global-default=true --description="default priority" # Create a priority class named high-priority that cannot preempt pods with lower priority oc create priorityclass high-priority --value=1000 --description="high priority" --preemption-policy="Never"
Create a new resource quota named my-quota oc create quota my-quota --hard=cpu=1,memory=1G,pods=2,services=3,replicationcontrollers=2,resourcequotas=1,secrets=5,persistentvolumeclaims=10 # Create a new resource quota named best-effort oc create quota best-effort --hard=pods=100 --scopes=BestEffort
Create a role named "pod-reader" that allows user to perform "get", "watch" and "list" on pods oc create role pod-reader --verb=get --verb=list --verb=watch --resource=pods # Create a role named "pod-reader" with ResourceName specified oc create role pod-reader --verb=get --resource=pods --resource-name=readablepod --resource-name=anotherpod # Create a role named "foo" with API Group specified oc create role foo --verb=get,list,watch --resource=rs.extensions # Create a role named "foo" with SubResource specified oc create role foo --verb=get,list,watch --resource=pods,pods/status
Create a role binding for user1, user2, and group1 using the admin cluster role oc create rolebinding admin --clusterrole=admin --user=user1 --user=user2 --group=group1
Create an edge route named "my-route" that exposes the frontend service oc create route edge my-route --service=frontend # Create an edge route that exposes the frontend service and specify a path # If the route name is omitted, the service name will be used oc create route edge --service=frontend --path /assets
Create a passthrough route named "my-route" that exposes the frontend service oc create route passthrough my-route --service=frontend # Create a passthrough route that exposes the frontend service and specify # a host name. If the route name is omitted, the service name will be used oc create route passthrough --service=frontend --hostname=www.example.com
Create a route named "my-route" that exposes the frontend service oc create route reencrypt my-route --service=frontend --dest-ca-cert cert.cert # Create a reencrypt route that exposes the frontend service, letting the # route name default to the service name and the destination CA certificate # default to the service CA oc create route reencrypt --service=frontend
If you don't already have a .dockercfg file, you can create a dockercfg secret directly by using: oc create secret docker-registry my-secret --docker-server=DOCKER_REGISTRY_SERVER --docker-username=DOCKER_USER --docker-password=DOCKER_PASSWORD --docker-email=DOCKER_EMAIL # Create a new secret named my-secret from ~/.docker/config.json oc create secret docker-registry my-secret --from-file=.dockerconfigjson=path/to/.docker/config.json
Create a new secret named my-secret with keys for each file in folder bar oc create secret generic my-secret --from-file=path/to/bar # Create a new secret named my-secret with specified keys instead of names on disk oc create secret generic my-secret --from-file=ssh-privatekey=path/to/id_rsa --from-file=ssh-publickey=path/to/id_rsa.pub # Create a new secret named my-secret with key1=supersecret and key2=topsecret oc create secret generic my-secret --from-literal=key1=supersecret --from-literal=key2=topsecret # Create a new secret named my-secret using a combination of a file and a literal oc create secret generic my-secret --from-file=ssh-privatekey=path/to/id_rsa --from-literal=passphrase=topsecret # Create a new secret named my-secret from env files oc create secret generic my-secret --from-env-file=path/to/foo.env --from-env-file=path/to/bar.env
Create a new TLS secret named tls-secret with the given key pair oc create secret tls tls-secret --cert=path/to/tls.cert --key=path/to/tls.key
Create a new ClusterIP service named my-cs oc create service clusterip my-cs --tcp=5678:8080 # Create a new ClusterIP service named my-cs (in headless mode) oc create service clusterip my-cs --clusterip="None"
Create a new ExternalName service named my-ns oc create service externalname my-ns --external-name bar.com
Create a new LoadBalancer service named my-lbs oc create service loadbalancer my-lbs --tcp=5678:8080
Create a new NodePort service named my-ns oc create service nodeport my-ns --tcp=5678:8080
Create a new service account named my-service-account oc create serviceaccount my-service-account
Create a user with the username "ajones" and the display name "Adam Jones" oc create user ajones --full-name="Adam Jones"
Map the identity "acme_ldap:adamjones" to the user "ajones" oc create useridentitymapping acme_ldap:adamjones ajones
Start a shell session into a pod using the OpenShift tools image oc debug # Debug a currently running deployment by creating a new pod oc debug deploy/test # Debug a node as an administrator oc debug node/master-1 # Launch a shell in a pod using the provided image stream tag oc debug istag/mysql:latest -n openshift # Test running a job as a non-root user oc debug job/test --as-user=1000000 # Debug a specific failing container by running the env command in the 'second' container oc debug daemonset/test -c second -- /bin/env # See the pod that would be created to debug oc debug mypod-9xbc -o yaml # Debug a resource but launch the debug pod in another namespace # Note: Not all resources can be debugged using --to-namespace without modification. For example, # volumes and service accounts are namespace-dependent. Add '-o yaml' to output the debug pod definition # to disk. If necessary, edit the definition then run 'oc debug -f -' or run without --to-namespace oc debug mypod-9xbc --to-namespace testns
Delete a pod using the type and name specified in pod.json oc delete -f ./pod.json # Delete resources from a directory containing kustomization.yaml - e.g. dir/kustomization.yaml oc delete -k dir # Delete a pod based on the type and name in the JSON passed into stdin cat pod.json | oc delete -f - # Delete pods and services with same names "baz" and "foo" oc delete pod,service baz foo # Delete pods and services with label name=myLabel oc delete pods,services -l name=myLabel # Delete a pod with minimal delay oc delete pod foo --now # Force delete a pod on a dead node oc delete pod foo --force # Delete all pods oc delete pods --all
Describe a node oc describe nodes kubernetes-node-emt8.c.myproject.internal # Describe a pod oc describe pods/nginx # Describe a pod identified by type and name in "pod.json" oc describe -f pod.json # Describe all pods oc describe pods # Describe pods by label name=myLabel oc describe po -l name=myLabel # Describe all pods managed by the 'frontend' replication controller # (rc-created pods get the name of the rc as a prefix in the pod name) oc describe pods frontend
Diff resources included in pod.json oc diff -f pod.json # Diff file read from stdin cat service.yaml | oc diff -f -
Edit the service named 'docker-registry' oc edit svc/docker-registry # Use an alternative editor KUBE_EDITOR="nano" oc edit svc/docker-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
Get output from running the 'date' command from pod mypod, using the first container by default oc exec mypod -- date # Get output from running the 'date' command in ruby-container from pod mypod oc exec mypod -c ruby-container -- date # Switch to raw terminal mode; sends stdin to 'bash' in ruby-container from pod mypod # and sends stdout/stderr from 'bash' back to the client oc exec mypod -c ruby-container -i -t -- bash -il # List contents of /usr from the first container of pod mypod and sort by modification time # If the command you want to execute in the pod has any flags in common (e.g. -i), # you must use two dashes (--) to separate your command's flags/arguments # Also note, do not surround your command and its flags/arguments with quotes # unless that is how you would execute it normally (i.e., do ls -t /usr, not "ls -t /usr") oc exec mypod -i -t -- ls -t /usr # Get output from running 'date' command from the first pod of the deployment mydeployment, using the first container by default oc exec deploy/mydeployment -- date # Get output from running 'date' command from the first pod of the service myservice, using the first container by default oc exec svc/myservice -- date
Get the documentation of the resource and its fields oc explain pods # Get the documentation of a specific field of a resource oc explain pods.spec.containers
Create a route based on service nginx. The new route will reuse nginx's labels oc expose service nginx # Create a route and specify your own label and route name oc expose service nginx -l name=myroute --name=fromdowntown # Create a route and specify a host name oc expose service nginx --hostname=www.example.com # Create a route with a wildcard oc expose service nginx --hostname=x.example.com --wildcard-policy=Subdomain # This would be equivalent to *.example.com. NOTE: only hosts are matched by the wildcard; subdomains would not be included # Expose a deployment configuration as a service and use the specified port oc expose dc ruby-hello-world --port=8080 # Expose a service as a route in the specified path oc expose service nginx --path=/nginx # Expose a service using different generators oc expose service nginx --name=exposed-svc --port=12201 --protocol="TCP" --generator="service/v2" oc expose service nginx --name=my-route --port=12201 --generator="route/v1" # Exposing a service using the "route/v1" generator (default) will create a new exposed route with the "--name" provided # (or the name of the service otherwise). You may not specify a "--protocol" or "--target-port" option when using this generator
Extract the secret "test" to the current directory oc extract secret/test # Extract the config map "nginx" to the /tmp directory oc extract configmap/nginx --to=/tmp # Extract the config map "nginx" to STDOUT oc extract configmap/nginx --to=- # Extract only the key "nginx.conf" from config map "nginx" to the /tmp directory oc extract configmap/nginx --to=/tmp --keys=nginx.conf
List all pods in ps output format oc get pods # List all pods in ps output format with more information (such as node name) oc get pods -o wide # List a single replication controller with specified NAME in ps output format oc get replicationcontroller web # List deployments in JSON output format, in the "v1" version of the "apps" API group oc get deployments.v1.apps -o json # List a single pod in JSON output format oc get -o json pod web-pod-13je7 # List a pod identified by type and name specified in "pod.yaml" in JSON output format oc get -f pod.yaml -o json # List resources from a directory with kustomization.yaml - e.g. dir/kustomization.yaml oc get -k dir/ # Return only the phase value of the specified pod oc get -o template pod/web-pod-13je7 --template={{.status.phase}} # List resource information in custom columns oc get pod test-pod -o custom-columns=CONTAINER:.spec.containers[0].name,IMAGE:.spec.containers[0].image # List all replication controllers and services together in ps output format oc get rc,services # List one or more resources by their type and names oc get rc/web service/frontend pods/web-pod-13je7
Idle the scalable controllers associated with the services listed in to-idle.txt USD oc idle --resource-names-file to-idle.txt
Remove the entrypoint on the mysql:latest image oc image append --from mysql:latest --to myregistry.com/myimage:latest --image '{"Entrypoint":null}' # Add a new layer to the image oc image append --from mysql:latest --to myregistry.com/myimage:latest layer.tar.gz # Add a new layer to the image and store the result on disk # This results in USD(pwd)/v2/mysql/blobs,manifests oc image append --from mysql:latest --to file://mysql:local layer.tar.gz # Add a new layer to the image and store the result on disk in a designated directory # This will result in USD(pwd)/mysql-local/v2/mysql/blobs,manifests oc image append --from mysql:latest --to file://mysql:local --dir mysql-local layer.tar.gz # Add a new layer to an image that is stored on disk (~/mysql-local/v2/image exists) oc image append --from-dir ~/mysql-local --to myregistry.com/myimage:latest layer.tar.gz # Add a new layer to an image that was mirrored to the current directory on disk (USD(pwd)/v2/image exists) oc image append --from-dir v2 --to myregistry.com/myimage:latest layer.tar.gz # Add a new layer to a multi-architecture image for an os/arch that is different from the system's os/arch # Note: 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
Extract the busybox image into the current directory oc image extract docker.io/library/busybox:latest # Extract the busybox image into a designated directory (must exist) oc image extract docker.io/library/busybox:latest --path /:/tmp/busybox # Extract the busybox image into the current directory for linux/s390x platform # Note: Wildcard filter is not supported with extract. Pass a single os/arch to extract oc image extract docker.io/library/busybox:latest --filter-by-os=linux/s390x # Extract a single file from the image into the current directory oc image extract docker.io/library/centos:7 --path /bin/bash:. # Extract all .repo files from the image's /etc/yum.repos.d/ folder into the current directory oc image extract docker.io/library/centos:7 --path /etc/yum.repos.d/*.repo:. # Extract all .repo files from the image's /etc/yum.repos.d/ folder into a designated directory (must exist) # This results in /tmp/yum.repos.d/*.repo on local system oc image extract docker.io/library/centos:7 --path /etc/yum.repos.d/*.repo:/tmp/yum.repos.d # Extract an image stored on disk into the current directory (USD(pwd)/v2/busybox/blobs,manifests exists) # --confirm is required because the current directory is not empty oc image extract file://busybox:local --confirm # Extract an image stored on disk in a directory other than USD(pwd)/v2 into the current directory # --confirm is required because the current directory is not empty (USD(pwd)/busybox-mirror-dir/v2/busybox exists) oc image extract file://busybox:local --dir busybox-mirror-dir --confirm # Extract an image stored on disk in a directory other than USD(pwd)/v2 into a designated directory (must exist) oc image extract file://busybox:local --dir busybox-mirror-dir --path /:/tmp/busybox # Extract the last layer in the image oc image extract docker.io/library/centos:7[-1] # Extract the first three layers of the image oc image extract docker.io/library/centos:7[:3] # Extract the last three layers of the image oc image extract docker.io/library/centos:7[-3:]
Show information about an image oc image info quay.io/openshift/cli:latest # Show information about images matching a wildcard oc image info quay.io/openshift/cli:4.* # Show information about a file mirrored to disk under DIR oc image info --dir=DIR file://library/busybox:latest # Select which image from a multi-OS image to show oc image info library/busybox:latest --filter-by-os=linux/arm64
Copy image to another tag oc image mirror myregistry.com/myimage:latest myregistry.com/myimage:stable # Copy image to another registry oc image mirror myregistry.com/myimage:latest docker.io/myrepository/myimage:stable # Copy all tags starting with mysql to the destination repository oc image mirror myregistry.com/myimage:mysql* docker.io/myrepository/myimage # Copy image to disk, creating a directory structure that can be served as a registry oc image mirror myregistry.com/myimage:latest file://myrepository/myimage:latest # Copy image to S3 (pull from <bucket>.s3.amazonaws.com/image:latest) oc image mirror myregistry.com/myimage:latest s3://s3.amazonaws.com/<region>/<bucket>/image:latest # Copy image to S3 without setting a tag (pull via @<digest>) oc image mirror myregistry.com/myimage:latest s3://s3.amazonaws.com/<region>/<bucket>/image # Copy image to multiple locations oc image mirror myregistry.com/myimage:latest docker.io/myrepository/myimage:stable docker.io/myrepository/myimage:dev # Copy multiple images oc image mirror myregistry.com/myimage:latest=myregistry.com/other:test myregistry.com/myimage:new=myregistry.com/other:target # Copy manifest list of a multi-architecture image, even if only a single image is found oc image mirror myregistry.com/myimage:latest=myregistry.com/other:test --keep-manifest-list=true # Copy specific os/arch manifest of a multi-architecture image # Run 'oc image info myregistry.com/myimage:latest' to see available os/arch for multi-arch images # Note that with multi-arch images, this results in a new manifest list digest that includes only # the filtered manifests oc image mirror myregistry.com/myimage:latest=myregistry.com/other:test --filter-by-os=os/arch # Copy all os/arch manifests of a multi-architecture image # Run 'oc image info myregistry.com/myimage:latest' to see list of os/arch manifests that will be mirrored oc image mirror myregistry.com/myimage:latest=myregistry.com/other:test --keep-manifest-list=true # Note the above command is equivalent to oc image mirror myregistry.com/myimage:latest=myregistry.com/other:test --filter-by-os=.*
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
Build the current working directory oc kustomize # Build some shared configuration directory oc kustomize /home/config/production # Build from github oc kustomize https://github.com/kubernetes-sigs/kustomize.git/examples/helloWorld?ref=v1.0.6
Update pod 'foo' with the label 'unhealthy' and the value 'true' oc label pods foo unhealthy=true # Update pod 'foo' with the label 'status' and the value 'unhealthy', overwriting any existing value oc label --overwrite pods foo status=unhealthy # Update all pods in the namespace oc label pods --all status=unhealthy # Update a pod identified by the type and name in "pod.json" oc label -f pod.json status=unhealthy # Update pod 'foo' only if the resource is unchanged from version 1 oc label pods foo status=unhealthy --resource-version=1 # Update pod 'foo' by removing a label named 'bar' if it exists # Does not require the --overwrite flag oc label pods foo bar-
Log in interactively oc login --username=myuser # Log in to the given server with the given certificate authority file oc login localhost:8443 --certificate-authority=/path/to/cert.crt # Log in to the given server with the given credentials (will not prompt interactively) oc login localhost:8443 --username=myuser --password=mypass
Log out oc logout
Start streaming the logs of the most recent build of the openldap build config oc logs -f bc/openldap # Start streaming the logs of the latest deployment of the mysql deployment config oc logs -f dc/mysql # Get the logs of the first deployment for the mysql deployment config. Note that logs # from older deployments may not exist either because the deployment was successful # or due to deployment pruning or manual deletion of the deployment oc logs --version=1 dc/mysql # Return a snapshot of ruby-container logs from pod backend oc logs backend -c ruby-container # Start streaming of ruby-container logs from pod backend oc logs -f pod/backend -c ruby-container
List all local templates and image streams that can be used to create an app 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
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 USD'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
Create a new project with minimal information oc new-project web-team-dev # Create a new project with a display name and description oc new-project web-team-dev --display-name="Web Team Development" --description="Development project for the web team."
Observe changes to services 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
Partially update a node using a strategic merge patch, specifying the patch as JSON oc patch node k8s-node-1 -p '{"spec":{"unschedulable":true}}' # Partially update a node using a strategic merge patch, specifying the patch as YAML oc patch node k8s-node-1 -p USD'spec:\n unschedulable: true' # Partially update a node identified by the type and name specified in "node.json" using strategic merge patch oc patch -f node.json -p '{"spec":{"unschedulable":true}}' # Update a container's image; spec.containers[*].name is required because it's a merge key oc patch pod valid-pod -p '{"spec":{"containers":[{"name":"kubernetes-serve-hostname","image":"new image"}]}}' # Update a container's image using a JSON patch with positional arrays oc patch pod valid-pod --type='json' -p='[{"op": "replace", "path": "/spec/containers/0/image", "value":"new image"}]'
Add the 'view' role to user1 for the current project oc policy add-role-to-user view user1 # Add the 'edit' role to serviceaccount1 for the current project oc policy add-role-to-user edit -z serviceaccount1
Check whether service accounts sa1 and sa2 can admit a pod with a template pod spec specified in my_resource.yaml # Service Account specified in myresource.yaml file is ignored oc policy scc-review -z sa1,sa2 -f my_resource.yaml # Check whether service accounts system:serviceaccount:bob:default can admit a pod with a template pod spec specified in my_resource.yaml oc policy scc-review -z system:serviceaccount:bob:default -f my_resource.yaml # Check whether the service account specified in my_resource_with_sa.yaml can admit the pod oc policy scc-review -f my_resource_with_sa.yaml # Check whether the default service account can admit the pod; default is taken since no service account is defined in myresource_with_no_sa.yaml oc policy scc-review -f myresource_with_no_sa.yaml
Check whether user bob can create a pod specified in myresource.yaml oc policy scc-subject-review -u bob -f myresource.yaml # Check whether user bob who belongs to projectAdmin group can create a pod specified in myresource.yaml oc policy scc-subject-review -u bob -g projectAdmin -f myresource.yaml # Check whether a service account specified in the pod template spec in myresourcewithsa.yaml can create the pod oc policy scc-subject-review -f myresourcewithsa.yaml
Listen on ports 5000 and 6000 locally, forwarding data to/from ports 5000 and 6000 in the pod oc port-forward pod/mypod 5000 6000 # Listen on ports 5000 and 6000 locally, forwarding data to/from ports 5000 and 6000 in a pod selected by the deployment oc port-forward deployment/mydeployment 5000 6000 # Listen on port 8443 locally, forwarding to the targetPort of the service's port named "https" in a pod selected by the service oc port-forward service/myservice 8443:https # Listen on port 8888 locally, forwarding to 5000 in the pod oc port-forward pod/mypod 8888:5000 # Listen on port 8888 on all addresses, forwarding to 5000 in the pod oc port-forward --address 0.0.0.0 pod/mypod 8888:5000 # Listen on port 8888 on localhost and selected IP, forwarding to 5000 in the pod oc port-forward --address localhost,10.19.21.23 pod/mypod 8888:5000 # Listen on a random port locally, forwarding to 5000 in the pod oc port-forward pod/mypod :5000
Convert the template.json file into a resource list and pass to create oc process -f template.json | oc create -f - # Process a file locally instead of contacting the server oc process -f template.json --local -o yaml # Process template while passing a user-defined label oc process -f template.json -l name=mytemplate # Convert a stored template into a resource list oc process foo # Convert a stored template into a resource list by setting/overriding parameter values oc process foo PARM1=VALUE1 PARM2=VALUE2 # Convert a template stored in different namespace into a resource list oc process openshift//foo # Convert template.json into a resource list cat template.json | oc process -f -
Switch to the 'myapp' project oc project myapp # Display the project currently in use oc project
List all projects oc projects
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
Display information about the integrated registry oc registry info
Log in to the integrated registry oc registry login # Log in as the default service account in the current namespace oc registry login -z default # Log in to different registry using BASIC auth credentials oc registry login --registry quay.io/myregistry --auth-basic=USER:PASS
Replace a pod using the data in pod.json 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/\(image: myimage\):.*USD/\1:v4/' | oc replace -f - # Force replace, delete and then re-create the resource oc replace --force -f ./pod.json
Perform a rollback to the last successfully completed deployment for a deployment config oc rollback frontend # See what a rollback to version 3 will look like, but do not perform the rollback oc rollback frontend --to-version=3 --dry-run # Perform a rollback to a specific deployment oc rollback frontend-2 # Perform the rollback manually by piping the JSON of the new config back to oc oc rollback frontend -o json | oc replace dc/frontend -f - # Print the updated deployment configuration in JSON format instead of performing the rollback oc rollback frontend -o json
Cancel the in-progress deployment based on 'nginx' oc rollout cancel dc/nginx
View the rollout history of a deployment oc rollout history dc/nginx # View the details of deployment revision 3 oc rollout history dc/nginx --revision=3
Start a new rollout based on the latest images defined in the image change triggers oc rollout latest dc/nginx # Print the rolled out deployment config oc rollout latest dc/nginx -o json
Mark the nginx deployment as paused. Any current state of # the deployment will continue its function, new updates to the deployment will not # have an effect as long as the deployment is paused oc rollout pause dc/nginx
Restart a deployment oc rollout restart deployment/nginx # Restart a daemon set oc rollout restart daemonset/abc
Resume an already paused deployment oc rollout resume dc/nginx
Retry the latest failed deployment based on 'frontend' # The deployer pod and any hook pods are deleted for the latest failed deployment oc rollout retry dc/frontend
Watch the status of the latest rollout oc rollout status dc/nginx
Roll back to the previous deployment oc rollout undo dc/nginx # Roll back to deployment revision 3. The replication controller for that version must exist oc rollout undo dc/nginx --to-revision=3
Open a shell session on the first container in pod 'foo' oc rsh foo # Open a shell session on the first container in pod 'foo' and namespace 'bar' # (Note that oc client specific arguments must come before the resource name and its arguments) oc rsh -n bar foo # Run the command 'cat /etc/resolv.conf' inside pod 'foo' oc rsh foo cat /etc/resolv.conf # See the configuration of your internal registry oc rsh dc/docker-registry cat config.yml # Open a shell session on the container named 'index' inside a pod of your job oc rsh -c index job/sheduled
Synchronize a local directory with a pod directory oc rsync ./local/dir/ POD:/remote/dir # Synchronize a pod directory with a local directory oc rsync POD:/remote/dir/ ./local/dir
Start a nginx pod oc run nginx --image=nginx # Start a hazelcast pod and let the container expose port 5701 oc run hazelcast --image=hazelcast/hazelcast --port=5701 # Start a hazelcast pod and set environment variables "DNS_DOMAIN=cluster" and "POD_NAMESPACE=default" in the container oc run hazelcast --image=hazelcast/hazelcast --env="DNS_DOMAIN=cluster" --env="POD_NAMESPACE=default" # Start a hazelcast pod and set labels "app=hazelcast" and "env=prod" in the container oc run hazelcast --image=hazelcast/hazelcast --labels="app=hazelcast,env=prod" # Dry run; print the corresponding API objects without creating them oc run nginx --image=nginx --dry-run=client # Start a nginx pod, but overload the spec with a partial set of values parsed from JSON oc run nginx --image=nginx --overrides='{ "apiVersion": "v1", "spec": { ... } }' # Start a busybox pod and keep it in the foreground, don't restart it if it exits oc run -i -t busybox --image=busybox --restart=Never # Start the nginx pod using the default command, but use custom arguments (arg1 .. argN) for that command oc run nginx --image=nginx -- <arg1> <arg2> ... <argN> # Start the nginx pod using a different command and custom arguments oc run nginx --image=nginx --command -- <cmd> <arg1> ... <argN>
Scale a replica set named 'foo' to 3 oc scale --replicas=3 rs/foo # Scale a resource identified by type and name specified in "foo.yaml" to 3 oc scale --replicas=3 -f foo.yaml # If the deployment named mysql's current size is 2, scale mysql to 3 oc scale --current-replicas=2 --replicas=3 deployment/mysql # Scale multiple replication controllers oc scale --replicas=5 rc/foo rc/bar rc/baz # Scale stateful set named 'web' to 3 oc scale --replicas=3 statefulset/web
Add an image pull secret to a service account to automatically use it for pulling pod images oc secrets link serviceaccount-name pull-secret --for=pull # Add an image pull secret to a service account to automatically use it for both pulling and pushing build images oc secrets link builder builder-image-secret --for=pull,mount
Unlink a secret currently associated with a service account oc secrets unlink serviceaccount-name secret-name another-secret-name
Create a kubeconfig file for service account 'default' oc serviceaccounts create-kubeconfig 'default' > default.kubeconfig
Get the service account token from service account 'default' oc serviceaccounts get-token 'default'
Generate a new token for service account 'default' oc serviceaccounts new-token 'default' # Generate a new token for service account 'default' and apply # labels 'foo' and 'bar' to the new token for identification oc serviceaccounts new-token 'default' --labels foo=foo-value,bar=bar-value
Clear post-commit hook on a build config oc set build-hook bc/mybuild --post-commit --remove # Set the post-commit hook to execute a test suite using a new entrypoint oc set build-hook bc/mybuild --post-commit --command -- /bin/bash -c /var/lib/test-image.sh # Set the post-commit hook to execute a shell script oc set build-hook bc/mybuild --post-commit --script="/var/lib/test-image.sh param1 param2 && /var/lib/done.sh"
Clear the push secret on a build config oc set build-secret --push --remove bc/mybuild # Set the pull secret on a build config oc set build-secret --pull bc/mybuild mysecret # Set the push and pull secret on a build config oc set build-secret --push --pull bc/mybuild mysecret # Set the source secret on a set of build configs matching a selector oc set build-secret --source -l app=myapp gitsecret
Set the 'password' key of a secret oc set data secret/foo password=this_is_secret # Remove the 'password' key from a secret oc set data secret/foo password- # Update the 'haproxy.conf' key of a config map from a file on disk oc set data configmap/bar --from-file=../haproxy.conf # Update a secret with the contents of a directory, one key per file oc set data secret/foo --from-file=secret-dir
Clear pre and post hooks on a deployment config oc set deployment-hook dc/myapp --remove --pre --post # Set the pre deployment hook to execute a db migration command for an application # using the data volume from the application oc set deployment-hook dc/myapp --pre --volumes=data -- /var/lib/migrate-db.sh # Set a mid deployment hook along with additional environment variables oc set deployment-hook dc/myapp --mid --volumes=data -e VAR1=value1 -e VAR2=value2 -- /var/lib/prepare-deploy.sh
Update deployment config 'myapp' with a new environment variable oc set env dc/myapp STORAGE_DIR=/local # List the environment variables defined on a build config 'sample-build' oc set env bc/sample-build --list # List the environment variables defined on all pods oc set env pods --all --list # Output modified build config in YAML oc set env bc/sample-build STORAGE_DIR=/data -o yaml # Update all containers in all replication controllers in the project to have ENV=prod oc set env rc --all ENV=prod # Import environment from a secret oc set env --from=secret/mysecret dc/myapp # Import environment from a config map with a prefix oc set env --from=configmap/myconfigmap --prefix=MYSQL_ dc/myapp # Remove the environment variable ENV from container 'c1' in all deployment configs oc set env dc --all --containers="c1" ENV- # Remove the environment variable ENV from a deployment config definition on disk and # update the deployment config on the server oc set env -f dc.json ENV- # Set some of the local shell environment into a deployment config on the server oc set env | grep RAILS_ | oc env -e - dc/myapp
Set a deployment 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
Print all of the image streams and whether they resolve local names oc set image-lookup # Use local name lookup on image stream mysql oc set image-lookup mysql # Force a deployment to use local name lookup oc set image-lookup deploy/mysql # Show the current status of the deployment lookup oc set image-lookup deploy/mysql --list # Disable local name lookup on image stream mysql oc set image-lookup mysql --enabled=false # Set local name lookup on all image streams oc set image-lookup --all
Clear both readiness and liveness probes off all containers oc set probe dc/myapp --remove --readiness --liveness # Set an exec action as a liveness probe to run 'echo ok' oc set probe dc/myapp --liveness -- echo ok # Set a readiness probe to try to open a TCP socket on 3306 oc set probe rc/mysql --readiness --open-tcp=3306 # Set an HTTP startup probe for port 8080 and path /healthz over HTTP on the pod IP oc set probe dc/webapp --startup --get-url=http://:8080/healthz # Set an HTTP readiness probe for port 8080 and path /healthz over HTTP on the pod IP oc set probe dc/webapp --readiness --get-url=http://:8080/healthz # Set an HTTP readiness probe over HTTPS on 127.0.0.1 for a hostNetwork pod oc set probe dc/router --readiness --get-url=https://127.0.0.1:1936/stats # Set only the initial-delay-seconds field on all deployments oc set probe dc --all --readiness --initial-delay-seconds=30
Set a deployments nginx container CPU limits to "200m and memory to 512Mi" oc set resources deployment nginx -c=nginx --limits=cpu=200m,memory=512Mi # Set the resource request and limits for all containers in nginx oc set resources deployment nginx --limits=cpu=200m,memory=512Mi --requests=cpu=100m,memory=256Mi # Remove the resource requests for resources on containers in nginx oc set resources deployment nginx --limits=cpu=0,memory=0 --requests=cpu=0,memory=0 # Print the result (in YAML format) of updating nginx container limits locally, without hitting the server oc set resources -f path/to/file.yaml --limits=cpu=200m,memory=512Mi --local -o yaml
Print the backends on the route 'web' oc set route-backends web # Set two backend services on route 'web' with 2/3rds of traffic going to 'a' oc set route-backends web a=2 b=1 # Increase the traffic percentage going to b by 10%% relative to a oc set route-backends web --adjust b=+10%% # Set traffic percentage going to b to 10%% of the traffic going to a oc set route-backends web --adjust b=10%% # Set weight of b to 10 oc set route-backends web --adjust b=10 # Set the weight to all backends to zero oc set route-backends web --zero
Set the labels and selector before creating a deployment/service pair. oc create service clusterip my-svc --clusterip="None" -o yaml --dry-run | oc set selector --local -f - 'environment=qa' -o yaml | oc create -f - oc create deployment my-dep -o yaml --dry-run | oc label --local -f - environment=qa -o yaml | oc create -f -
Set deployment nginx-deployment's service account to serviceaccount1 oc set serviceaccount deployment nginx-deployment serviceaccount1 # Print the result (in YAML format) of updated nginx deployment with service account from a local file, without hitting the API server oc set sa -f nginx-deployment.yaml serviceaccount1 --local --dry-run -o yaml
Update a cluster role binding for serviceaccount1 oc set subject clusterrolebinding admin --serviceaccount=namespace:serviceaccount1 # Update a role binding for user1, user2, and group1 oc set subject rolebinding admin --user=user1 --user=user2 --group=group1 # Print the result (in YAML format) of updating role binding subjects locally, without hitting the server oc create rolebinding admin --role=admin --user=admin -o yaml --dry-run | oc set subject --local -f - --user=foo -o yaml
Print the triggers on the deployment config 'myapp' oc set triggers dc/myapp # Set all triggers to manual oc set triggers dc/myapp --manual # Enable all automatic triggers oc set triggers dc/myapp --auto # Reset the GitHub webhook on a build to a new, generated secret oc set triggers bc/webapp --from-github oc set triggers bc/webapp --from-webhook # Remove all triggers oc set triggers bc/webapp --remove-all # Stop triggering on config change oc set triggers dc/myapp --from-config --remove # Add an image trigger to a build config oc set triggers bc/webapp --from-image=namespace1/image:latest # Add an image trigger to a stateful set on the main container oc set triggers statefulset/db --from-image=namespace1/image:latest -c main
List volumes defined on all deployment configs in the current project oc set volume dc --all # Add a new empty dir volume to deployment config (dc) 'myapp' mounted under # /var/lib/myapp oc set volume dc/myapp --add --mount-path=/var/lib/myapp # Use an existing persistent volume claim (pvc) to overwrite an existing volume 'v1' oc set volume dc/myapp --add --name=v1 -t pvc --claim-name=pvc1 --overwrite # Remove volume 'v1' from deployment config 'myapp' oc set volume dc/myapp --remove --name=v1 # Create a new persistent volume claim that overwrites an existing volume 'v1' oc set volume dc/myapp --add --name=v1 -t pvc --claim-size=1G --overwrite # Change the mount point for volume 'v1' to /data oc set volume dc/myapp --add --name=v1 -m /data --overwrite # Modify the deployment config by removing volume mount "v1" from container "c1" # (and by removing the volume "v1" if no other containers have volume mounts that reference it) oc set volume dc/myapp --remove --name=v1 --containers=c1 # Add new volume based on a more complex volume source (AWS EBS, GCE PD, # Ceph, Gluster, NFS, ISCSI, ...) oc set volume dc/myapp --add -m /data --source=<json-string>
Starts build from build config "hello-world" oc start-build hello-world # Starts build from a previous build "hello-world-1" oc start-build --from-build=hello-world-1 # Use the contents of a directory as build input oc start-build hello-world --from-dir=src/ # Send the contents of a Git repository to the server from tag 'v2' oc start-build hello-world --from-repo=../hello-world --commit=v2 # Start a new build for build config "hello-world" and watch the logs until the build # completes or fails oc start-build hello-world --follow # Start a new build for build config "hello-world" and wait until the build completes. It # exits with a non-zero return code if the build fails oc start-build hello-world --wait
See an overview of the current project oc status # Export the overview of the current project in an svg file oc status -o dot | dot -T svg -o project.svg # See an overview of the current project including details for any identified issues oc status --suggest
Tag the current image for the image stream 'openshift/ruby' and tag '2.0' into the image stream 'yourproject/ruby with tag 'tip' 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
Print the OpenShift client, kube-apiserver, and openshift-apiserver version information for the current context oc version # Print the OpenShift client, kube-apiserver, and openshift-apiserver version numbers for the current context oc version --short # Print the OpenShift client version information for the current context oc version --client
Wait for the pod "busybox1" to contain the status condition of type "Ready" oc wait --for=condition=Ready pod/busybox1 # The default value of status condition is true; you can set it to false 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
Display the currently authenticated user oc whoami
Build the dependency tree for the 'latest' tag in <image-stream> oc adm build-chain <image-stream> # Build the dependency tree for the 'v2' tag in dot format and visualize it via the dot utility oc adm build-chain <image-stream>:v2 -o dot | dot -T svg -o deps.svg # Build the dependency tree across all namespaces for the specified image stream tag found in the 'test' namespace oc adm build-chain <image-stream> -n test --all
Mirror an operator-registry image and its contents to a registry oc adm catalog mirror quay.io/my/image:latest myregistry.com # Mirror an operator-registry image and its contents to a particular namespace in a registry oc adm catalog mirror quay.io/my/image:latest myregistry.com/my-namespace # Mirror to an airgapped registry by first mirroring to files oc adm catalog mirror quay.io/my/image:latest file:///local/index oc adm catalog mirror file:///local/index/my/image:latest my-airgapped-registry.com # Configure a cluster to use a mirrored registry oc apply -f manifests/imageContentSourcePolicy.yaml # Edit the mirroring mappings and mirror with "oc image mirror" manually oc adm catalog mirror --manifests-only quay.io/my/image:latest myregistry.com oc image mirror -f manifests/mapping.txt # Delete all ImageContentSourcePolicies generated by oc adm catalog mirror oc delete imagecontentsourcepolicy -l operators.openshift.org/catalog=true
Approve CSR 'csr-sqgzp' oc adm certificate approve csr-sqgzp
Deny CSR 'csr-sqgzp' oc adm certificate deny csr-sqgzp
Mark node "foo" as unschedulable oc adm cordon foo
Output a bootstrap project template in YAML format to stdout oc adm create-bootstrap-project-template -o yaml
Output a template for the error page to stdout oc adm create-error-template
Output a template for the login page to stdout oc adm create-login-template
Output a template for the provider selection page to stdout oc adm create-provider-selection-template
Drain node "foo", even if there are pods not managed by a replication controller, replica set, job, daemon set or stateful set on it oc adm drain foo --force # As above, but abort if there are pods not managed by a replication controller, replica set, job, daemon set or stateful set, and use a grace period of 15 minutes oc adm drain foo --grace-period=900
Add user1 and user2 to my-group oc adm groups add-users my-group user1 user2
Add a group with no users oc adm groups new my-group # Add a group with two users oc adm groups new my-group user1 user2 # Add a group with one user and shorter output oc adm groups new my-group user1 -o name
Prune all orphaned groups oc adm groups prune --sync-config=/path/to/ldap-sync-config.yaml --confirm # Prune all orphaned groups except the ones from the blacklist file oc adm groups prune --blacklist=/path/to/blacklist.txt --sync-config=/path/to/ldap-sync-config.yaml --confirm # Prune all orphaned groups from a list of specific groups specified in a whitelist file oc adm groups prune --whitelist=/path/to/whitelist.txt --sync-config=/path/to/ldap-sync-config.yaml --confirm # Prune all orphaned groups from a list of specific groups specified in a whitelist oc adm groups prune groups/group_name groups/other_name --sync-config=/path/to/ldap-sync-config.yaml --confirm
Remove user1 and user2 from my-group oc adm groups remove-users my-group user1 user2
Sync all groups with an LDAP server oc adm groups sync --sync-config=/path/to/ldap-sync-config.yaml --confirm # Sync all groups except the ones from the blacklist file with an LDAP server oc adm groups sync --blacklist=/path/to/blacklist.txt --sync-config=/path/to/ldap-sync-config.yaml --confirm # Sync specific groups specified in a whitelist file with an LDAP server oc adm groups sync --whitelist=/path/to/whitelist.txt --sync-config=/path/to/sync-config.yaml --confirm # Sync all OpenShift groups that have been synced previously with an LDAP server oc adm groups sync --type=openshift --sync-config=/path/to/ldap-sync-config.yaml --confirm # Sync specific OpenShift groups if they have been synced previously with an LDAP server oc adm groups sync groups/group1 groups/group2 groups/group3 --sync-config=/path/to/sync-config.yaml --confirm
Collect debugging data for the "openshift-apiserver" clusteroperator oc adm inspect clusteroperator/openshift-apiserver # Collect debugging data for the "openshift-apiserver" and "kube-apiserver" clusteroperators oc adm inspect clusteroperator/openshift-apiserver clusteroperator/kube-apiserver # Collect debugging data for all clusteroperators oc adm inspect clusteroperator # Collect debugging data for all clusteroperators and clusterversions oc adm inspect clusteroperators,clusterversions
Perform a dry-run of updating all objects oc adm migrate template-instances # To actually perform the update, the confirm flag must be appended oc adm migrate template-instances --confirm
Gather information using the default plug-in image and command, writing into ./must-gather.local.<rand> oc adm must-gather # Gather information with a specific local folder to copy to oc adm must-gather --dest-dir=/local/directory # Gather audit information oc adm must-gather -- /usr/bin/gather_audit_logs # Gather information using multiple plug-in images oc adm must-gather --image=quay.io/kubevirt/must-gather --image=quay.io/openshift/origin-must-gather # Gather information using a specific image stream plug-in oc adm must-gather --image-stream=openshift/must-gather:latest # Gather information using a specific image, command, and pod-dir oc adm must-gather --image=my/image:tag --source-dir=/pod/directory -- myspecial-command.sh
Create a new project using a node selector oc adm new-project myproject --node-selector='type=user-node,region=east'
Show kubelet logs from all masters oc adm node-logs --role master -u kubelet # See what logs are available in masters in /var/logs oc adm node-logs --role master --path=/ # Display cron log file from all masters oc adm node-logs --role master --path=cron
Provide isolation for project p1 oc adm pod-network isolate-projects <p1> # Allow all projects with label name=top-secret to have their own isolated project network oc adm pod-network isolate-projects --selector='name=top-secret'
Allow project p2 to use project p1 network oc adm pod-network join-projects --to=<p1> <p2> # Allow all projects with label name=top-secret to use project p1 network oc adm pod-network join-projects --to=<p1> --selector='name=top-secret'
Allow project p1 to access all pods in the cluster and vice versa oc adm pod-network make-projects-global <p1> # Allow all projects with label name=share to access all pods in the cluster and vice versa oc adm pod-network make-projects-global --selector='name=share'
Add the 'view' role to user1 for the current project oc adm policy add-role-to-user view user1 # Add the 'edit' role to serviceaccount1 for the current project oc adm policy add-role-to-user edit -z serviceaccount1
Add the 'restricted' security context constraint to group1 and group2 oc adm policy add-scc-to-group restricted group1 group2
Add the 'restricted' security context constraint to user1 and user2 oc adm policy add-scc-to-user restricted user1 user2 # Add the 'privileged' security context constraint to serviceaccount1 in the current namespace oc adm policy add-scc-to-user privileged -z serviceaccount1
Check whether service accounts sa1 and sa2 can admit a pod with a template pod spec specified in my_resource.yaml # Service Account specified in myresource.yaml file is ignored oc adm 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 adm 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 adm 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 adm policy scc-review -f myresource_with_no_sa.yaml
Check whether user bob can create a pod specified in myresource.yaml oc adm 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 adm 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 adm policy scc-subject-review -f myresourcewithsa.yaml
Dry run deleting older completed and failed builds and also including # all builds whose associated build config no longer exists oc adm prune builds --orphans # To actually perform the prune operation, the confirm flag must be appended oc adm prune builds --orphans --confirm
Dry run deleting all but the last complete deployment for every deployment config oc adm prune deployments --keep-complete=1 # To actually perform the prune operation, the confirm flag must be appended oc adm prune deployments --keep-complete=1 --confirm
Prune all orphaned groups oc adm prune groups --sync-config=/path/to/ldap-sync-config.yaml --confirm # Prune all orphaned groups except the ones from the blacklist file oc adm prune groups --blacklist=/path/to/blacklist.txt --sync-config=/path/to/ldap-sync-config.yaml --confirm # Prune all orphaned groups from a list of specific groups specified in a whitelist file oc adm prune groups --whitelist=/path/to/whitelist.txt --sync-config=/path/to/ldap-sync-config.yaml --confirm # Prune all orphaned groups from a list of specific groups specified in a whitelist oc adm prune groups groups/group_name groups/other_name --sync-config=/path/to/ldap-sync-config.yaml --confirm
See what the prune command would delete if only images and their referrers were more than an hour old # and obsoleted by 3 newer revisions under the same tag were considered oc adm prune images --keep-tag-revisions=3 --keep-younger-than=60m # To actually perform the prune operation, the confirm flag must be appended oc adm prune images --keep-tag-revisions=3 --keep-younger-than=60m --confirm # See what the prune command would delete if we are interested in removing images # exceeding currently set limit ranges ('openshift.io/Image') oc adm prune images --prune-over-size-limit # To actually perform the prune operation, the confirm flag must be appended oc adm prune images --prune-over-size-limit --confirm # Force the insecure http protocol with the particular registry host name oc adm prune images --registry-url=http://registry.example.org --confirm # Force a secure connection with a custom certificate authority to the particular registry host name oc adm prune images --registry-url=registry.example.org --certificate-authority=/path/to/custom/ca.crt --confirm
Use git to check out the source code for the current cluster release to DIR oc adm release extract --git=DIR # Extract cloud credential requests for AWS oc adm release extract --credentials-requests --cloud=aws
Show information about the cluster's current release oc adm release info # Show the source code that comprises a release oc adm release info 4.2.2 --commit-urls # Show the source code difference between two releases oc adm release info 4.2.0 4.2.2 --commits # Show where the images referenced by the release are located oc adm release info quay.io/openshift-release-dev/ocp-release:4.2.2 --pullspecs
Perform a dry run showing what would be mirrored, including the mirror objects oc adm release mirror 4.3.0 --to myregistry.local/openshift/release --release-image-signature-to-dir /tmp/releases --dry-run # Mirror a release into the current directory oc adm release mirror 4.3.0 --to file://openshift/release --release-image-signature-to-dir /tmp/releases # Mirror a release to another directory in the default location oc adm release mirror 4.3.0 --to-dir /tmp/releases # Upload a release from the current directory to another server oc adm release mirror --from file://openshift/release --to myregistry.com/openshift/release --release-image-signature-to-dir /tmp/releases # Mirror the 4.3.0 release to repository registry.example.com and apply signatures to connected cluster oc adm release mirror --from=quay.io/openshift-release-dev/ocp-release:4.3.0-x86_64 --to=registry.example.com/your/repository --apply-release-image-signature
Create a release from the latest origin images and push to a DockerHub repo oc adm release new --from-image-stream=4.1 -n origin --to-image docker.io/mycompany/myrepo:latest # Create a new release with updated metadata from a previous release oc adm release new --from-release registry.svc.ci.openshift.org/origin/release:v4.1 --name 4.1.1 --previous 4.1.0 --metadata ... --to-image docker.io/mycompany/myrepo:latest # Create a new release and override a single image oc adm release new --from-release registry.svc.ci.openshift.org/origin/release:v4.1 cli=docker.io/mycompany/cli:latest --to-image docker.io/mycompany/myrepo:latest # Run a verification pass to ensure the release can be reproduced oc adm release new --from-release registry.svc.ci.openshift.org/origin/release:v4.1
Update node 'foo' with a taint with key 'dedicated' and value 'special-user' and effect 'NoSchedule' # If a taint with that key and effect already exists, its value is replaced as specified oc adm taint nodes foo dedicated=special-user:NoSchedule # Remove from node 'foo' the taint with key 'dedicated' and effect 'NoSchedule' if one exists oc adm taint nodes foo dedicated:NoSchedule- # Remove from node 'foo' all the taints with key 'dedicated' oc adm taint nodes foo dedicated- # Add a taint with key 'dedicated' on nodes having label mylabel=X oc adm taint node -l myLabel=X dedicated=foo:PreferNoSchedule # Add to node 'foo' a taint with key 'bar' and no value oc adm taint nodes foo bar:NoSchedule
Show usage statistics for images oc adm top images
Show usage statistics for image streams oc adm top imagestreams
Show metrics for all nodes oc adm top node # Show metrics for a given node oc adm top node NODE_NAME
Show metrics for all pods in the default namespace oc adm top pod # Show metrics for all pods in the given namespace oc adm top pod --namespace=NAMESPACE # Show metrics for a given pod and its containers oc adm top pod POD_NAME --containers # Show metrics for the pods defined by label name=myLabel oc adm top pod -l name=myLabel
Mark node "foo" as schedulable oc adm uncordon foo
Review the available cluster updates oc adm upgrade # Update to the latest version oc adm upgrade --to-latest=true
Verify the image signature and identity using the local GPG keychain oc adm verify-image-signature sha256:c841e9b64e4579bd56c794bdd7c36e1c257110fd2404bebbb8b613e4935228c4 --expected-identity=registry.local:5000/foo/bar:v1 # Verify the image signature and identity using the local GPG keychain and save the status oc adm verify-image-signature sha256:c841e9b64e4579bd56c794bdd7c36e1c257110fd2404bebbb8b613e4935228c4 --expected-identity=registry.local:5000/foo/bar:v1 --save # Verify the image signature and identity via exposed registry route oc adm verify-image-signature sha256:c841e9b64e4579bd56c794bdd7c36e1c257110fd2404bebbb8b613e4935228c4 --expected-identity=registry.local:5000/foo/bar:v1 --registry-url=docker-registry.foo.com # Remove all signature verifications from the image oc adm verify-image-signature sha256:c841e9b64e4579bd56c794bdd7c36e1c257110fd2404bebbb8b613e4935228c4 --remove-all