This documentation is for a release that is no longer maintained
See documentation for the latest supported version 3 or the latest supported version 4.CLI tools
Learning how to use the command-line tools for OpenShift Container Platform
Abstract
Chapter 1. OpenShift Container Platform CLI tools overview Copy linkLink copied to clipboard!
A user performs a range of operations while working on OpenShift Container Platform such as the following:
- Managing clusters
- Building, deploying, and managing applications
- Managing deployment processes
- Developing Operators
- Creating and maintaining Operator catalogs
OpenShift Container Platform offers a set of command-line interface (CLI) tools that simplify these tasks by enabling users to perform various administration and development operations from the terminal. These tools expose simple commands to manage the applications, as well as interact with each component of the system.
1.1. List of CLI tools Copy linkLink copied to clipboard!
The following set of CLI tools are available in OpenShift Container Platform:
- OpenShift CLI (oc): This is the most commonly used CLI tool by OpenShift Container Platform users. It helps both cluster administrators and developers to perform end-to-end operations across OpenShift Container Platform using the terminal. Unlike the web console, it allows the user to work directly with the project source code using command scripts.
-
Developer CLI (odo): The
odo
CLI tool helps developers focus on their main goal of creating and maintaining applications on OpenShift Container Platform by abstracting away complex Kubernetes and OpenShift Container Platform concepts. It helps the developers to write, build, and debug applications on a cluster from the terminal without the need to administer the cluster. -
Knative CLI (kn): The Knative (
kn
) CLI tool provides simple and intuitive terminal commands that can be used to interact with OpenShift Serverless components, such as Knative Serving and Eventing. -
Pipelines CLI (tkn): OpenShift Pipelines is a continuous integration and continuous delivery (CI/CD) solution in OpenShift Container Platform, which internally uses Tekton. The
tkn
CLI tool provides simple and intuitive commands to interact with OpenShift Pipelines using the terminal. -
opm CLI: The
opm
CLI tool helps the Operator developers and cluster administrators to create and maintain the catalogs of Operators from the terminal. - Operator SDK: The Operator SDK, a component of the Operator Framework, provides a CLI tool that Operator developers can use to build, test, and deploy an Operator from the terminal. It simplifies the process of building Kubernetes-native applications, which can require deep, application-specific operational knowledge.
Chapter 2. OpenShift CLI (oc) Copy linkLink copied to clipboard!
2.1. Getting started with the OpenShift CLI Copy linkLink copied to clipboard!
2.1.1. About the OpenShift CLI Copy linkLink copied to clipboard!
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 Copy linkLink copied to clipboard!
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 Copy linkLink copied to clipboard!
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.
If you installed an earlier version of oc
, you cannot use it to complete all of the commands in OpenShift Container Platform 4.8. 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 next to the OpenShift v4.8 Linux Client entry and save the file.
Unpack the archive:
tar xvzf <file>
$ tar xvzf <file>
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Place the
oc
binary in a directory that is on yourPATH
.To check your
PATH
, execute the following command:echo $PATH
$ echo $PATH
Copy to Clipboard Copied! Toggle word wrap Toggle overflow
After you install the OpenShift CLI, it is available using the oc
command:
oc <command>
$ 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 next to the OpenShift v4.8 Windows Client entry and save the file.
- Unzip the archive with a ZIP program.
Move the
oc
binary to a directory that is on yourPATH
.To check your
PATH
, open the command prompt and execute the following command:path
C:\> path
Copy to Clipboard Copied! Toggle word wrap Toggle overflow
After you install the OpenShift CLI, it is available using the oc
command:
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 next to the OpenShift v4.8 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:echo $PATH
$ echo $PATH
Copy to Clipboard Copied! Toggle word wrap Toggle overflow
After you install the OpenShift CLI, it is available using the oc
command:
oc <command>
$ oc <command>
2.1.2.2. Installing the OpenShift CLI by using the web console Copy linkLink copied to clipboard!
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.
If you installed an earlier version of oc
, you cannot use it to complete all of the commands in OpenShift Container Platform 4.8. Download and install the new version of oc
.
2.1.2.2.1. Installing the OpenShift CLI on Linux using the web console Copy linkLink copied to clipboard!
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.
tar xvzf <file>
$ tar xvzf <file>
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Move the
oc
binary to a directory that is on yourPATH
.To check your
PATH
, execute the following command:echo $PATH
$ echo $PATH
Copy to Clipboard Copied! Toggle word wrap Toggle overflow
After you install the OpenShift CLI, it is available using the oc
command:
oc <command>
$ oc <command>
2.1.2.2.2. Installing the OpenShift CLI on Windows using the web console Copy linkLink copied to clipboard!
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 yourPATH
.To check your
PATH
, open the command prompt and execute the following command:path
C:\> path
Copy to Clipboard Copied! Toggle word wrap Toggle overflow
After you install the OpenShift CLI, it is available using the oc
command:
oc <command>
C:\> oc <command>
2.1.2.2.3. Installing the OpenShift CLI on macOS using the web console Copy linkLink copied to clipboard!
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:echo $PATH
$ echo $PATH
Copy to Clipboard Copied! Toggle word wrap Toggle overflow
After you install the OpenShift CLI, it is available using the oc
command:
oc <command>
$ oc <command>
2.1.2.3. Installing the OpenShift CLI by using an RPM Copy linkLink copied to clipboard!
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
# subscription-manager register
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Pull the latest subscription data:
subscription-manager refresh
# subscription-manager refresh
Copy to Clipboard Copied! Toggle word wrap Toggle overflow List the available subscriptions:
subscription-manager list --available --matches '*OpenShift*'
# subscription-manager list --available --matches '*OpenShift*'
Copy to Clipboard Copied! Toggle word wrap Toggle overflow In the output for the previous 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>
# subscription-manager attach --pool=<pool_id>
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Enable the repositories required by OpenShift Container Platform 4.8.
For Red Hat Enterprise Linux 8:
subscription-manager repos --enable="rhocp-4.8-for-rhel-8-x86_64-rpms"
# subscription-manager repos --enable="rhocp-4.8-for-rhel-8-x86_64-rpms"
Copy to Clipboard Copied! Toggle word wrap Toggle overflow For Red Hat Enterprise Linux 7:
subscription-manager repos --enable="rhel-7-server-ose-4.8-rpms"
# subscription-manager repos --enable="rhel-7-server-ose-4.8-rpms"
Copy to Clipboard Copied! Toggle word wrap Toggle overflow
Install the
openshift-clients
package:yum install openshift-clients
# yum install openshift-clients
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After you install the CLI, it is available using the oc
command:
oc <command>
$ oc <command>
2.1.2.4. Installing the OpenShift CLI by using Homebrew Copy linkLink copied to clipboard!
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:
brew install openshift-cli
$ brew install openshift-cli
Copy to Clipboard Copied! Toggle word wrap Toggle overflow
2.1.3. Logging in to the OpenShift CLI Copy linkLink copied to clipboard!
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
).
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:oc login -u user1
$ oc login -u user1
Copy to Clipboard Copied! Toggle word wrap Toggle overflow When prompted, enter the required information:
Example output
Copy to Clipboard Copied! Toggle word wrap Toggle overflow
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 Copy linkLink copied to clipboard!
Review the following sections to learn how to complete common tasks using the CLI.
2.1.4.1. Creating a project Copy linkLink copied to clipboard!
Use the oc new-project
command to create a new project.
oc new-project my-project
$ oc new-project my-project
Example output
Now using project "my-project" on server "https://openshift.example.com:6443".
Now using project "my-project" on server "https://openshift.example.com:6443".
2.1.4.2. Creating a new app Copy linkLink copied to clipboard!
Use the oc new-app
command to create a new application.
oc new-app https://github.com/sclorg/cakephp-ex
$ 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.
--> 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 Copy linkLink copied to clipboard!
Use the oc get pods
command to view the pods for the current project.
When you run oc
inside a pod and do not specify a namespace, the namespace of the pod is used by default.
oc get pods -o wide
$ 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>
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 Copy linkLink copied to clipboard!
Use the oc logs
command to view logs for a particular pod.
oc logs cakephp-ex-1-deploy
$ oc logs cakephp-ex-1-deploy
Example output
--> Scaling cakephp-ex-1 to 1 --> Success
--> Scaling cakephp-ex-1 to 1
--> Success
2.1.4.5. Viewing the current project Copy linkLink copied to clipboard!
Use the oc project
command to view the current project.
oc project
$ oc project
Example output
Using project "my-project" on server "https://openshift.example.com:6443".
Using project "my-project" on server "https://openshift.example.com:6443".
2.1.4.6. Viewing the status for the current project Copy linkLink copied to clipboard!
Use the oc status
command to view information about the current project, such as services, deployments, and build configs.
oc status
$ oc status
Example output
2.1.4.7. Listing supported API resources Copy linkLink copied to clipboard!
Use the oc api-resources
command to view the list of supported API resources on the server.
oc api-resources
$ oc api-resources
Example output
NAME SHORTNAMES APIGROUP NAMESPACED KIND bindings true Binding componentstatuses cs false ComponentStatus configmaps cm true ConfigMap ...
NAME SHORTNAMES APIGROUP NAMESPACED KIND
bindings true Binding
componentstatuses cs false ComponentStatus
configmaps cm true ConfigMap
...
2.1.5. Getting help Copy linkLink copied to clipboard!
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
oc help
$ oc help
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Example output
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Use the
--help
flag to get help about a specific CLI command:Example: Get help for the
oc create
commandoc create --help
$ oc create --help
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Example output
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Use the
oc explain
command to view the description and fields for a particular resource:Example: View documentation for the
Pod
resourceoc explain pods
$ oc explain pods
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Example output
Copy to Clipboard Copied! Toggle word wrap Toggle overflow
2.1.6. Logging out of the OpenShift CLI Copy linkLink copied to clipboard!
You can log out the OpenShift CLI to end your current session.
Use the
oc logout
command.oc logout
$ oc logout
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Example output
Logged "user1" out on "https://openshift.example.com"
Logged "user1" out on "https://openshift.example.com"
Copy to Clipboard Copied! Toggle word wrap Toggle overflow
This deletes the saved authentication token from the server and removes it from your configuration file.
2.2. Configuring the OpenShift CLI Copy linkLink copied to clipboard!
2.2.1. Enabling tab completion Copy linkLink copied to clipboard!
You can enable tab completion for the Bash or Zsh shells.
2.2.1.1. Enabling tab completion for Bash Copy linkLink copied to clipboard!
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:
oc completion bash > oc_bash_completion
$ oc completion bash > oc_bash_completion
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Copy the file to
/etc/bash_completion.d/
:sudo cp oc_bash_completion /etc/bash_completion.d/
$ sudo cp oc_bash_completion /etc/bash_completion.d/
Copy to Clipboard Copied! Toggle word wrap Toggle overflow 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 Copy linkLink copied to clipboard!
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:Copy to Clipboard Copied! Toggle word wrap Toggle overflow
Tab completion is enabled when you open a new terminal.
2.3. Managing CLI profiles Copy linkLink copied to clipboard!
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 Copy linkLink copied to clipboard!
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
- 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 nicknamedopenshift1.example.com:8443
and another is nicknamedopenshift2.example.com:8443
. - 2
- This
contexts
section defines two contexts: one nicknamedalice-project/openshift1.example.com:8443/alice
, using thealice-project
project,openshift1.example.com:8443
cluster, andalice
user, and another nicknamedjoe-project/openshift1.example.com:8443/alice
, using thejoe-project
project,openshift1.example.com:8443
cluster andalice
user. - 3
- The
current-context
parameter shows that thejoe-project/openshift1.example.com:8443/alice
context is currently in use, allowing thealice
user to work in thejoe-project
project on theopenshift1.example.com:8443
cluster. - 4
- The
users
section defines user credentials. In this example, the user nicknamealice/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
oc status
$ oc status
Example output
List the current project
oc project
$ 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".
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:
oc project alice-project
$ oc project alice-project
Example output
Now using project "alice-project" on server "https://openshift1.example.com:8443".
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.
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:
oc login -u system:admin -n default
$ oc login -u system:admin -n default
2.3.2. Manual configuration of CLI profiles Copy linkLink copied to clipboard!
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:
Subcommand | Usage |
---|---|
| Sets a cluster entry in the CLI config file. If the referenced cluster nickname already exists, the specified information is merged in. oc config set-cluster <cluster_nickname> [--server=<master_ip_or_fqdn>]
|
| Sets a context entry in the CLI config file. If the referenced context nickname already exists, the specified information is merged in. oc config set-context <context_nickname> [--cluster=<cluster_nickname>]
|
| Sets the current context using the specified context nickname. oc config use-context <context_nickname>
|
| Sets an individual value in the CLI config file. oc config set <property_name> <property_value>
The |
| Unsets individual values in the CLI config file. oc config unset <property_name>
The |
| Displays the merged CLI configuration currently in use. oc config view
Displays the result of the specified CLI config file. 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:
oc login https://openshift1.example.com --token=ns7yVhuRNpDM9cgzfhhxQ7bM5s7N2ZVrkZepSRf4LC0
$ oc login https://openshift1.example.com --token=ns7yVhuRNpDM9cgzfhhxQ7bM5s7N2ZVrkZepSRf4LC0
- View the cluster entry automatically created:
oc config view
$ oc config view
Example output
- Update the current context to have users log in to the desired namespace:
oc config set-context `oc config current-context` --namespace=<project_name>
$ oc config set-context `oc config current-context` --namespace=<project_name>
- Examine the current context, to confirm that the changes are implemented:
oc whoami -c
$ 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 Copy linkLink copied to clipboard!
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
$KUBECONFIG
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.
-
If the
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 value of the
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 value of the
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 Copy linkLink copied to clipboard!
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 Copy linkLink copied to clipboard!
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-
orkubectl-
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 ofoc foo bar
. You can also use underscores if you want the command to contain dashes. For example, a plugin with the file nameoc-foo_bar
can be invoked by a command ofoc foo-bar
.
-
The file must begin with
Add the following contents to the file.
Copy to Clipboard Copied! Toggle word wrap Toggle overflow
After you install this plugin for the OpenShift Container Platform CLI, it can be invoked using the oc foo
command.
2.4.2. Installing and using CLI plugins Copy linkLink copied to clipboard!
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-
orkubectl-
.
Procedure
If necessary, update the plugin file to be executable.
chmod +x <plugin_file>
$ chmod +x <plugin_file>
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Place the file anywhere in your
PATH
, such as/usr/local/bin/
.sudo mv <plugin_file> /usr/local/bin/.
$ sudo mv <plugin_file> /usr/local/bin/.
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Run
oc plugin list
to make sure that the plugin is listed.oc plugin list
$ oc plugin list
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Example output
The following compatible plugins are available: /usr/local/bin/<plugin_file>
The following compatible plugins are available: /usr/local/bin/<plugin_file>
Copy to Clipboard Copied! Toggle word wrap Toggle overflow If your plugin is not listed here, verify that the file begins with
oc-
orkubectl-
, is executable, and is on yourPATH
.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.oc ns
$ oc ns
Copy to Clipboard Copied! Toggle word wrap Toggle overflow 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 theoc foo bar
command.
2.5. OpenShift CLI developer command reference Copy linkLink copied to clipboard!
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 Copy linkLink copied to clipboard!
2.5.1.1. oc annotate Copy linkLink copied to clipboard!
Update the annotations on a resource
Example usage
2.5.1.2. oc api-resources Copy linkLink copied to clipboard!
Print the supported API resources on the server
Example usage
2.5.1.3. oc api-versions Copy linkLink copied to clipboard!
Print the supported API versions on the server, in the form of "group/version"
Example usage
Print the supported API versions
# Print the supported API versions
oc api-versions
2.5.1.4. oc apply Copy linkLink copied to clipboard!
Apply a configuration to a resource by filename or stdin
Example usage
2.5.1.5. oc apply edit-last-applied Copy linkLink copied to clipboard!
Edit latest last-applied-configuration annotations of a resource/object
Example usage
Edit the last-applied-configuration annotations by type/name in YAML.
# Edit the last-applied-configuration annotations by type/name in YAML.
oc apply edit-last-applied deployment/nginx
# Edit the last-applied-configuration annotations by file in JSON.
oc apply edit-last-applied -f deploy.yaml -o json
2.5.1.6. oc apply set-last-applied Copy linkLink copied to clipboard!
Set the last-applied-configuration annotation on a live object to match the contents of a file.
Example usage
2.5.1.7. oc apply view-last-applied Copy linkLink copied to clipboard!
View latest last-applied-configuration annotations of a resource/object
Example usage
View the last-applied-configuration annotations by type/name in YAML.
# View the last-applied-configuration annotations by type/name in YAML.
oc apply view-last-applied deployment/nginx
# View the last-applied-configuration annotations by file in JSON
oc apply view-last-applied -f deploy.yaml -o json
2.5.1.8. oc attach Copy linkLink copied to clipboard!
Attach to a running container
Example usage
2.5.1.9. oc auth can-i Copy linkLink copied to clipboard!
Check whether an action is allowed
Example usage
2.5.1.10. oc auth reconcile Copy linkLink copied to clipboard!
Reconciles rules for RBAC Role, RoleBinding, ClusterRole, and ClusterRoleBinding objects
Example usage
Reconcile rbac resources from a file
# Reconcile rbac resources from a file
oc auth reconcile -f my-rbac-rules.yaml
2.5.1.11. oc autoscale Copy linkLink copied to clipboard!
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:
# 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 Copy linkLink copied to clipboard!
Cancel running, pending, or new builds
Example usage
2.5.1.13. oc cluster-info Copy linkLink copied to clipboard!
Display cluster info
Example usage
Print the address of the control plane and cluster services
# Print the address of the control plane and cluster services
oc cluster-info
2.5.1.14. oc cluster-info dump Copy linkLink copied to clipboard!
Dump lots of relevant info for debugging and diagnosis
Example usage
2.5.1.15. oc completion Copy linkLink copied to clipboard!
Output shell completion code for the specified shell (bash or zsh)
Example usage
2.5.1.16. oc config current-context Copy linkLink copied to clipboard!
Displays the current-context
Example usage
Display the current-context
# Display the current-context
oc config current-context
2.5.1.17. oc config delete-cluster Copy linkLink copied to clipboard!
Delete the specified cluster from the kubeconfig
Example usage
Delete the minikube cluster
# Delete the minikube cluster
oc config delete-cluster minikube
2.5.1.18. oc config delete-context Copy linkLink copied to clipboard!
Delete the specified context from the kubeconfig
Example usage
Delete the context for the minikube cluster
# Delete the context for the minikube cluster
oc config delete-context minikube
2.5.1.19. oc config delete-user Copy linkLink copied to clipboard!
Delete the specified user from the kubeconfig
Example usage
Delete the minikube user
# Delete the minikube user
oc config delete-user minikube
2.5.1.20. oc config get-clusters Copy linkLink copied to clipboard!
Display clusters defined in the kubeconfig
Example usage
List the clusters oc knows about
# List the clusters oc knows about
oc config get-clusters
2.5.1.21. oc config get-contexts Copy linkLink copied to clipboard!
Describe one or many contexts
Example usage
List all the contexts in your kubeconfig file
# List all the contexts in your kubeconfig file
oc config get-contexts
# Describe one context in your kubeconfig file.
oc config get-contexts my-context
2.5.1.22. oc config get-users Copy linkLink copied to clipboard!
Display users defined in the kubeconfig
Example usage
List the users oc knows about
# List the users oc knows about
oc config get-users
2.5.1.23. oc config rename-context Copy linkLink copied to clipboard!
Renames a context from the kubeconfig file.
Example usage
Rename the context 'old-name' to 'new-name' in your kubeconfig file
# Rename the context 'old-name' to 'new-name' in your kubeconfig file
oc config rename-context old-name new-name
2.5.1.24. oc config set Copy linkLink copied to clipboard!
Sets an individual value in a kubeconfig file
Example usage
2.5.1.25. oc config set-cluster Copy linkLink copied to clipboard!
Sets a cluster entry in kubeconfig
Example usage
2.5.1.26. oc config set-context Copy linkLink copied to clipboard!
Sets a context entry in kubeconfig
Example usage
Set the user field on the gce context entry without touching other values
# Set the user field on the gce context entry without touching other values
oc config set-context gce --user=cluster-admin
2.5.1.27. oc config set-credentials Copy linkLink copied to clipboard!
Sets a user entry in kubeconfig
Example usage
2.5.1.28. oc config unset Copy linkLink copied to clipboard!
Unsets an individual value in a kubeconfig file
Example usage
Unset the current-context.
# 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 Copy linkLink copied to clipboard!
Sets the current-context in a kubeconfig file
Example usage
Use the context for the minikube cluster
# Use the context for the minikube cluster
oc config use-context minikube
2.5.1.30. oc config view Copy linkLink copied to clipboard!
Display merged kubeconfig settings or a specified kubeconfig file
Example usage
2.5.1.31. oc cp Copy linkLink copied to clipboard!
Copy files and directories to and from containers.
Example usage
2.5.1.32. oc create Copy linkLink copied to clipboard!
Create a resource from a file or from stdin.
Example usage
2.5.1.33. oc create build Copy linkLink copied to clipboard!
Create a new build
Example usage
Create a new build
# Create a new build
oc create build myapp
2.5.1.34. oc create clusterresourcequota Copy linkLink copied to clipboard!
Create a cluster resource quota
Example usage
Create a cluster resource quota limited to 10 pods
# Create a cluster resource quota limited to 10 pods
oc create clusterresourcequota limit-bob --project-annotation-selector=openshift.io/requester=user-bob --hard=pods=10
2.5.1.35. oc create clusterrole Copy linkLink copied to clipboard!
Create a ClusterRole.
Example usage
2.5.1.36. oc create clusterrolebinding Copy linkLink copied to clipboard!
Create a ClusterRoleBinding for a particular ClusterRole
Example usage
Create a ClusterRoleBinding for user1, user2, and group1 using the cluster-admin ClusterRole
# Create a ClusterRoleBinding for user1, user2, and group1 using the cluster-admin ClusterRole
oc create clusterrolebinding cluster-admin --clusterrole=cluster-admin --user=user1 --user=user2 --group=group1
2.5.1.37. oc create configmap Copy linkLink copied to clipboard!
Create a configmap from a local file, directory or literal value
Example usage
2.5.1.38. oc create cronjob Copy linkLink copied to clipboard!
Create a cronjob with the specified name.
Example usage
Create a cronjob
# Create a cronjob
oc create cronjob my-job --image=busybox --schedule="*/1 * * * *"
# Create a cronjob with command
oc create cronjob my-job --image=busybox --schedule="*/1 * * * *" -- date
2.5.1.39. oc create deployment Copy linkLink copied to clipboard!
Create a deployment with the specified name.
Example usage
2.5.1.40. oc create deploymentconfig Copy linkLink copied to clipboard!
Create a deployment config with default options that uses a given image
Example usage
Create an nginx deployment config named my-nginx
# Create an nginx deployment config named my-nginx
oc create deploymentconfig my-nginx --image=nginx
2.5.1.41. oc create identity Copy linkLink copied to clipboard!
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"
# 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 Copy linkLink copied to clipboard!
Create a new empty image stream
Example usage
Create a new image stream
# Create a new image stream
oc create imagestream mysql
2.5.1.43. oc create imagestreamtag Copy linkLink copied to clipboard!
Create a new image stream tag
Example usage
Create a new image stream tag based on an image in a remote registry
# Create a new image stream tag based on an image in a remote registry
oc create imagestreamtag mysql:latest --from-image=myregistry.local/mysql/mysql:5.0
2.5.1.44. oc create ingress Copy linkLink copied to clipboard!
Create an ingress with the specified name.
Example usage
2.5.1.45. oc create job Copy linkLink copied to clipboard!
Create a job with the specified name.
Example usage
2.5.1.46. oc create namespace Copy linkLink copied to clipboard!
Create a namespace with the specified name
Example usage
Create a new namespace named my-namespace
# Create a new namespace named my-namespace
oc create namespace my-namespace
2.5.1.47. oc create poddisruptionbudget Copy linkLink copied to clipboard!
Create a pod disruption budget with the specified name.
Example usage
2.5.1.48. oc create priorityclass Copy linkLink copied to clipboard!
Create a priorityclass with the specified name.
Example usage
2.5.1.49. oc create quota Copy linkLink copied to clipboard!
Create a quota with the specified name.
Example usage
Create a new resourcequota named my-quota
# Create a new resourcequota 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 resourcequota named best-effort
oc create quota best-effort --hard=pods=100 --scopes=BestEffort
2.5.1.50. oc create role Copy linkLink copied to clipboard!
Create a role with single rule.
Example usage
2.5.1.51. oc create rolebinding Copy linkLink copied to clipboard!
Create a RoleBinding for a particular Role or ClusterRole
Example usage
Create a RoleBinding for user1, user2, and group1 using the admin ClusterRole
# Create a RoleBinding for user1, user2, and group1 using the admin ClusterRole
oc create rolebinding admin --clusterrole=admin --user=user1 --user=user2 --group=group1
2.5.1.52. oc create route edge Copy linkLink copied to clipboard!
Create a route that uses edge TLS termination
Example usage
2.5.1.53. oc create route passthrough Copy linkLink copied to clipboard!
Create a route that uses passthrough TLS termination
Example usage
2.5.1.54. oc create route reencrypt Copy linkLink copied to clipboard!
Create a route that uses reencrypt TLS termination
Example usage
2.5.1.55. oc create secret docker-registry Copy linkLink copied to clipboard!
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:
# 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 Copy linkLink copied to clipboard!
Create a secret from a local file, directory or literal value
Example usage
2.5.1.57. oc create secret tls Copy linkLink copied to clipboard!
Create a TLS secret
Example usage
Create a new TLS secret named tls-secret with the given key pair:
# Create a new TLS secret named tls-secret with the given key pair:
oc create secret tls tls-secret --cert=path/to/tls.cert --key=path/to/tls.key
2.5.1.58. oc create service clusterip Copy linkLink copied to clipboard!
Create a ClusterIP service.
Example usage
Create a new ClusterIP service named my-cs
# Create a new ClusterIP service named my-cs
oc create service clusterip my-cs --tcp=5678:8080
# Create a new ClusterIP service named my-cs (in headless mode)
oc create service clusterip my-cs --clusterip="None"
2.5.1.59. oc create service externalname Copy linkLink copied to clipboard!
Create an ExternalName service.
Example usage
Create a new ExternalName service named my-ns
# Create a new ExternalName service named my-ns
oc create service externalname my-ns --external-name bar.com
2.5.1.60. oc create service loadbalancer Copy linkLink copied to clipboard!
Create a LoadBalancer service.
Example usage
Create a new LoadBalancer service named my-lbs
# Create a new LoadBalancer service named my-lbs
oc create service loadbalancer my-lbs --tcp=5678:8080
2.5.1.61. oc create service nodeport Copy linkLink copied to clipboard!
Create a NodePort service.
Example usage
Create a new NodePort service named my-ns
# Create a new NodePort service named my-ns
oc create service nodeport my-ns --tcp=5678:8080
2.5.1.62. oc create serviceaccount Copy linkLink copied to clipboard!
Create a service account with the specified name
Example usage
Create a new service account named my-service-account
# Create a new service account named my-service-account
oc create serviceaccount my-service-account
2.5.1.63. oc create user Copy linkLink copied to clipboard!
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"
# 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 Copy linkLink copied to clipboard!
Manually map an identity to a user
Example usage
Map the identity "acme_ldap:adamjones" to the user "ajones"
# Map the identity "acme_ldap:adamjones" to the user "ajones"
oc create useridentitymapping acme_ldap:adamjones ajones
2.5.1.65. oc debug Copy linkLink copied to clipboard!
Launch a new instance of a pod for debugging
Example usage
2.5.1.66. oc delete Copy linkLink copied to clipboard!
Delete resources by filenames, stdin, resources and names, or by resources and label selector
Example usage
2.5.1.67. oc describe Copy linkLink copied to clipboard!
Show details of a specific resource or group of resources
Example usage
2.5.1.68. oc diff Copy linkLink copied to clipboard!
Diff live version against would-be applied version
Example usage
Diff resources included in pod.json.
# Diff resources included in pod.json.
oc diff -f pod.json
# Diff file read from stdin
cat service.yaml | oc diff -f -
2.5.1.69. oc edit Copy linkLink copied to clipboard!
Edit a resource on the server
Example usage
2.5.1.70. oc ex dockergc Copy linkLink copied to clipboard!
Perform garbage collection to free space in docker storage
Example usage
Perform garbage collection with the default settings
# Perform garbage collection with the default settings
oc ex dockergc
2.5.1.71. oc exec Copy linkLink copied to clipboard!
Execute a command in a container
Example usage
2.5.1.72. oc explain Copy linkLink copied to clipboard!
Documentation of resources
Example usage
Get the documentation of the resource and its fields
# Get the documentation of the resource and its fields
oc explain pods
# Get the documentation of a specific field of a resource
oc explain pods.spec.containers
2.5.1.73. oc expose Copy linkLink copied to clipboard!
Expose a replicated application as a service or route
Example usage
2.5.1.74. oc extract Copy linkLink copied to clipboard!
Extract secrets or config maps to disk
Example usage
2.5.1.75. oc get Copy linkLink copied to clipboard!
Display one or many resources
Example usage
2.5.1.76. oc idle Copy linkLink copied to clipboard!
Idle scalable resources
Example usage
Idle the scalable controllers associated with the services listed in to-idle.txt
# Idle the scalable controllers associated with the services listed in to-idle.txt
$ oc idle --resource-names-file to-idle.txt
2.5.1.77. oc image append Copy linkLink copied to clipboard!
Add layers to images and push them to a registry
Example usage
2.5.1.78. oc image extract Copy linkLink copied to clipboard!
Copy files from an image to the file system
Example usage
2.5.1.79. oc image info Copy linkLink copied to clipboard!
Display information about an image
Example usage
2.5.1.80. oc image mirror Copy linkLink copied to clipboard!
Mirror images from one repository to another
Example usage
2.5.1.81. oc import-image Copy linkLink copied to clipboard!
Import images from a container image registry
Example usage
2.5.1.82. oc kustomize Copy linkLink copied to clipboard!
Build a kustomization target from a directory or URL.
Example usage
2.5.1.83. oc label Copy linkLink copied to clipboard!
Update the labels on a resource
Example usage
2.5.1.84. oc login Copy linkLink copied to clipboard!
Log in to a server
Example usage
2.5.1.85. oc logout Copy linkLink copied to clipboard!
End the current server session
Example usage
Log out
# Log out
oc logout
2.5.1.86. oc logs Copy linkLink copied to clipboard!
Print the logs for a container in a pod
Example usage
2.5.1.87. oc new-app Copy linkLink copied to clipboard!
Create a new application
Example usage
2.5.1.88. oc new-build Copy linkLink copied to clipboard!
Create a new build configuration
Example usage
2.5.1.89. oc new-project Copy linkLink copied to clipboard!
Request a new project
Example usage
Create a new project with minimal information
# Create a new project with minimal information
oc new-project web-team-dev
# Create a new project with a display name and description
oc new-project web-team-dev --display-name="Web Team Development" --description="Development project for the web team."
2.5.1.90. oc observe Copy linkLink copied to clipboard!
Observe changes to resources and react to them (experimental)
Example usage
2.5.1.91. oc patch Copy linkLink copied to clipboard!
Update field(s) of a resource
Example usage
2.5.1.92. oc policy add-role-to-user Copy linkLink copied to clipboard!
Add a role to users or service accounts for the current project
Example usage
Add the 'view' role to user1 for the current project
# Add the 'view' role to user1 for the current project
oc policy add-role-to-user view user1
# Add the 'edit' role to serviceaccount1 for the current project
oc policy add-role-to-user edit -z serviceaccount1
2.5.1.93. oc policy scc-review Copy linkLink copied to clipboard!
Check which service account can create a pod
Example usage
2.5.1.94. oc policy scc-subject-review Copy linkLink copied to clipboard!
Check whether a user or a service account can create a pod
Example usage
2.5.1.95. oc port-forward Copy linkLink copied to clipboard!
Forward one or more local ports to a pod
Example usage
2.5.1.96. oc process Copy linkLink copied to clipboard!
Process a template into list of resources
Example usage
2.5.1.97. oc project Copy linkLink copied to clipboard!
Switch to another project
Example usage
Switch to the 'myapp' project
# Switch to the 'myapp' project
oc project myapp
# Display the project currently in use
oc project
2.5.1.98. oc projects Copy linkLink copied to clipboard!
Display existing projects
Example usage
List all projects
# List all projects
oc projects
2.5.1.99. oc proxy Copy linkLink copied to clipboard!
Run a proxy to the Kubernetes API server
Example usage
2.5.1.100. oc registry info Copy linkLink copied to clipboard!
Print information about the integrated registry
Example usage
Display information about the integrated registry
# Display information about the integrated registry
oc registry info
2.5.1.101. oc registry login Copy linkLink copied to clipboard!
Log in to the integrated registry
Example usage
2.5.1.102. oc replace Copy linkLink copied to clipboard!
Replace a resource by filename or stdin
Example usage
2.5.1.103. oc rollback Copy linkLink copied to clipboard!
Revert part of an application back to a previous deployment
Example usage
2.5.1.104. oc rollout cancel Copy linkLink copied to clipboard!
Cancel the in-progress deployment
Example usage
Cancel the in-progress deployment based on 'nginx'
# Cancel the in-progress deployment based on 'nginx'
oc rollout cancel dc/nginx
2.5.1.105. oc rollout history Copy linkLink copied to clipboard!
View rollout history
Example usage
View the rollout history of a deployment
# View the rollout history of a deployment
oc rollout history dc/nginx
# View the details of deployment revision 3
oc rollout history dc/nginx --revision=3
2.5.1.106. oc rollout latest Copy linkLink copied to clipboard!
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
# 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
2.5.1.107. oc rollout pause Copy linkLink copied to clipboard!
Mark the provided resource as paused
Example usage
Mark the nginx deployment as paused. Any current state of
# Mark the nginx deployment as paused. Any current state of
# the deployment will continue its function, new updates to the deployment will not
# have an effect as long as the deployment is paused
oc rollout pause dc/nginx
2.5.1.108. oc rollout restart Copy linkLink copied to clipboard!
Restart a resource
Example usage
Restart a deployment
# Restart a deployment
oc rollout restart deployment/nginx
# Restart a daemonset
oc rollout restart daemonset/abc
2.5.1.109. oc rollout resume Copy linkLink copied to clipboard!
Resume a paused resource
Example usage
Resume an already paused deployment
# Resume an already paused deployment
oc rollout resume dc/nginx
2.5.1.110. oc rollout retry Copy linkLink copied to clipboard!
Retry the latest failed rollout
Example usage
Retry the latest failed deployment based on 'frontend'
# Retry the latest failed deployment based on 'frontend'
# The deployer pod and any hook pods are deleted for the latest failed deployment
oc rollout retry dc/frontend
2.5.1.111. oc rollout status Copy linkLink copied to clipboard!
Show the status of the rollout
Example usage
Watch the status of the latest rollout
# Watch the status of the latest rollout
oc rollout status dc/nginx
2.5.1.112. oc rollout undo Copy linkLink copied to clipboard!
Undo a previous rollout
Example usage
Roll back to the previous deployment
# Roll back to the previous deployment
oc rollout undo dc/nginx
# Roll back to deployment revision 3. The replication controller for that version must exist
oc rollout undo dc/nginx --to-revision=3
2.5.1.113. oc rsh Copy linkLink copied to clipboard!
Start a shell session in a container
Example usage
2.5.1.114. oc rsync Copy linkLink copied to clipboard!
Copy files between a local file system and a pod
Example usage
Synchronize a local directory with a pod directory
# Synchronize a local directory with a pod directory
oc rsync ./local/dir/ POD:/remote/dir
# Synchronize a pod directory with a local directory
oc rsync POD:/remote/dir/ ./local/dir
2.5.1.115. oc run Copy linkLink copied to clipboard!
Run a particular image on the cluster
Example usage
2.5.1.116. oc scale Copy linkLink copied to clipboard!
Set a new size for a Deployment, ReplicaSet or Replication Controller
Example usage
2.5.1.117. oc secrets link Copy linkLink copied to clipboard!
Link secrets to a service account
Example usage
2.5.1.118. oc secrets unlink Copy linkLink copied to clipboard!
Detach secrets from a service account
Example usage
Unlink a secret currently associated with a service account
# Unlink a secret currently associated with a service account
oc secrets unlink serviceaccount-name secret-name another-secret-name ...
2.5.1.119. oc serviceaccounts create-kubeconfig Copy linkLink copied to clipboard!
Generate a kubeconfig file for a service account
Example usage
Create a kubeconfig file for service account 'default'
# Create a kubeconfig file for service account 'default'
oc serviceaccounts create-kubeconfig 'default' > default.kubeconfig
2.5.1.120. oc serviceaccounts get-token Copy linkLink copied to clipboard!
Get a token assigned to a service account
Example usage
Get the service account token from service account 'default'
# Get the service account token from service account 'default'
oc serviceaccounts get-token 'default'
2.5.1.121. oc serviceaccounts new-token Copy linkLink copied to clipboard!
Generate a new token for a service account
Example usage
2.5.1.122. oc set build-hook Copy linkLink copied to clipboard!
Update a build hook on a build config
Example usage
2.5.1.123. oc set build-secret Copy linkLink copied to clipboard!
Update a build secret on a build config
Example usage
2.5.1.124. oc set data Copy linkLink copied to clipboard!
Update the data within a config map or secret
Example usage
2.5.1.125. oc set deployment-hook Copy linkLink copied to clipboard!
Update a deployment hook on a deployment config
Example usage
2.5.1.126. oc set env Copy linkLink copied to clipboard!
Update environment variables on a pod template
Example usage
2.5.1.127. oc set image Copy linkLink copied to clipboard!
Update image of a pod template
Example usage
2.5.1.128. oc set image-lookup Copy linkLink copied to clipboard!
Change how images are resolved when deploying applications
Example usage
2.5.1.129. oc set probe Copy linkLink copied to clipboard!
Update a probe on a pod template
Example usage
2.5.1.130. oc set resources Copy linkLink copied to clipboard!
Update resource requests/limits on objects with pod templates
Example usage
2.5.1.131. oc set route-backends Copy linkLink copied to clipboard!
Update the backends for a route
Example usage
2.5.1.132. oc set selector Copy linkLink copied to clipboard!
Set the selector on a resource
Example usage
Set the labels and selector before creating a deployment/service pair.
# Set the labels and selector before creating a deployment/service pair.
oc create service clusterip my-svc --clusterip="None" -o yaml --dry-run | oc set selector --local -f - 'environment=qa' -o yaml | oc create -f -
oc create deployment my-dep -o yaml --dry-run | oc label --local -f - environment=qa -o yaml | oc create -f -
2.5.1.133. oc set serviceaccount Copy linkLink copied to clipboard!
Update ServiceAccount of a resource
Example usage
Set deployment nginx-deployment's service account to serviceaccount1
# Set deployment nginx-deployment's service account to serviceaccount1
oc set serviceaccount deployment nginx-deployment serviceaccount1
# Print the result (in YAML format) of updated nginx deployment with service account from a local file, without hitting the API server
oc set sa -f nginx-deployment.yaml serviceaccount1 --local --dry-run -o yaml
2.5.1.134. oc set subject Copy linkLink copied to clipboard!
Update User, Group or ServiceAccount in a RoleBinding/ClusterRoleBinding
Example usage
2.5.1.135. oc set triggers Copy linkLink copied to clipboard!
Update the triggers on one or more objects
Example usage
2.5.1.136. oc set volumes Copy linkLink copied to clipboard!
Update volumes on a pod template
Example usage
2.5.1.137. oc start-build Copy linkLink copied to clipboard!
Start a new build
Example usage
2.5.1.138. oc status Copy linkLink copied to clipboard!
Show an overview of the current project
Example usage
2.5.1.139. oc tag Copy linkLink copied to clipboard!
Tag existing images into image streams
Example usage
2.5.1.140. oc version Copy linkLink copied to clipboard!
Print the client and server version information
Example usage
2.5.1.141. oc wait Copy linkLink copied to clipboard!
Experimental: Wait for a specific condition on one or many resources.
Example usage
2.5.1.142. oc whoami Copy linkLink copied to clipboard!
Return information about the current session
Example usage
Display the currently authenticated user
# Display the currently authenticated user
oc whoami
2.6. OpenShift CLI administrator command reference Copy linkLink copied to clipboard!
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 Copy linkLink copied to clipboard!
2.6.1.1. oc adm build-chain Copy linkLink copied to clipboard!
Output the inputs and dependencies of your builds
Example usage
2.6.1.2. oc adm catalog mirror Copy linkLink copied to clipboard!
Mirror an operator-registry catalog
Example usage
2.6.1.3. oc adm completion Copy linkLink copied to clipboard!
Output shell completion code for the specified shell (bash or zsh)
Example usage
2.6.1.4. oc adm config current-context Copy linkLink copied to clipboard!
Displays the current-context
Example usage
Display the current-context
# Display the current-context
oc config current-context
2.6.1.5. oc adm config delete-cluster Copy linkLink copied to clipboard!
Delete the specified cluster from the kubeconfig
Example usage
Delete the minikube cluster
# Delete the minikube cluster
oc config delete-cluster minikube
2.6.1.6. oc adm config delete-context Copy linkLink copied to clipboard!
Delete the specified context from the kubeconfig
Example usage
Delete the context for the minikube cluster
# Delete the context for the minikube cluster
oc config delete-context minikube
2.6.1.7. oc adm config delete-user Copy linkLink copied to clipboard!
Delete the specified user from the kubeconfig
Example usage
Delete the minikube user
# Delete the minikube user
oc config delete-user minikube
2.6.1.8. oc adm config get-clusters Copy linkLink copied to clipboard!
Display clusters defined in the kubeconfig
Example usage
List the clusters oc knows about
# List the clusters oc knows about
oc config get-clusters
2.6.1.9. oc adm config get-contexts Copy linkLink copied to clipboard!
Describe one or many contexts
Example usage
List all the contexts in your kubeconfig file
# List all the contexts in your kubeconfig file
oc config get-contexts
# Describe one context in your kubeconfig file.
oc config get-contexts my-context
2.6.1.10. oc adm config get-users Copy linkLink copied to clipboard!
Display users defined in the kubeconfig
Example usage
List the users oc knows about
# List the users oc knows about
oc config get-users
2.6.1.11. oc adm config rename-context Copy linkLink copied to clipboard!
Renames a context from the kubeconfig file.
Example usage
Rename the context 'old-name' to 'new-name' in your kubeconfig file
# Rename the context 'old-name' to 'new-name' in your kubeconfig file
oc config rename-context old-name new-name
2.6.1.12. oc adm config set Copy linkLink copied to clipboard!
Sets an individual value in a kubeconfig file
Example usage
2.6.1.13. oc adm config set-cluster Copy linkLink copied to clipboard!
Sets a cluster entry in kubeconfig
Example usage
2.6.1.14. oc adm config set-context Copy linkLink copied to clipboard!
Sets a context entry in kubeconfig
Example usage
Set the user field on the gce context entry without touching other values
# Set the user field on the gce context entry without touching other values
oc config set-context gce --user=cluster-admin
2.6.1.15. oc adm config set-credentials Copy linkLink copied to clipboard!
Sets a user entry in kubeconfig
Example usage
2.6.1.16. oc adm config unset Copy linkLink copied to clipboard!
Unsets an individual value in a kubeconfig file
Example usage
Unset the current-context.
# Unset the current-context.
oc config unset current-context
# Unset namespace in foo context.
oc config unset contexts.foo.namespace
2.6.1.17. oc adm config use-context Copy linkLink copied to clipboard!
Sets the current-context in a kubeconfig file
Example usage
Use the context for the minikube cluster
# Use the context for the minikube cluster
oc config use-context minikube
2.6.1.18. oc adm config view Copy linkLink copied to clipboard!
Display merged kubeconfig settings or a specified kubeconfig file
Example usage
2.6.1.19. oc adm cordon Copy linkLink copied to clipboard!
Mark node as unschedulable
Example usage
Mark node "foo" as unschedulable.
# Mark node "foo" as unschedulable.
oc adm cordon foo
2.6.1.20. oc adm create-bootstrap-project-template Copy linkLink copied to clipboard!
Create a bootstrap project template
Example usage
Output a bootstrap project template in YAML format to stdout
# Output a bootstrap project template in YAML format to stdout
oc adm create-bootstrap-project-template -o yaml
2.6.1.21. oc adm create-error-template Copy linkLink copied to clipboard!
Create an error page template
Example usage
Output a template for the error page to stdout
# Output a template for the error page to stdout
oc adm create-error-template
2.6.1.22. oc adm create-login-template Copy linkLink copied to clipboard!
Create a login template
Example usage
Output a template for the login page to stdout
# Output a template for the login page to stdout
oc adm create-login-template
2.6.1.23. oc adm create-provider-selection-template Copy linkLink copied to clipboard!
Create a provider selection template
Example usage
Output a template for the provider selection page to stdout
# Output a template for the provider selection page to stdout
oc adm create-provider-selection-template
2.6.1.24. oc adm drain Copy linkLink copied to clipboard!
Drain node in preparation for maintenance
Example usage
Drain node "foo", even if there are pods not managed by a ReplicationController, ReplicaSet, Job, DaemonSet or StatefulSet on it.
# Drain node "foo", even if there are pods not managed by a ReplicationController, ReplicaSet, Job, DaemonSet or StatefulSet on it.
$ oc adm drain foo --force
# As above, but abort if there are pods not managed by a ReplicationController, ReplicaSet, Job, DaemonSet or StatefulSet, and use a grace period of 15 minutes.
$ oc adm drain foo --grace-period=900
2.6.1.25. oc adm groups add-users Copy linkLink copied to clipboard!
Add users to a group
Example usage
Add user1 and user2 to my-group
# Add user1 and user2 to my-group
oc adm groups add-users my-group user1 user2
2.6.1.26. oc adm groups new Copy linkLink copied to clipboard!
Create a new group
Example usage
2.6.1.27. oc adm groups prune Copy linkLink copied to clipboard!
Remove old OpenShift groups referencing missing records from an external provider
Example usage
2.6.1.28. oc adm groups remove-users Copy linkLink copied to clipboard!
Remove users from a group
Example usage
Remove user1 and user2 from my-group
# Remove user1 and user2 from my-group
oc adm groups remove-users my-group user1 user2
2.6.1.29. oc adm groups sync Copy linkLink copied to clipboard!
Sync OpenShift groups with records from an external provider
Example usage
2.6.1.30. oc adm inspect Copy linkLink copied to clipboard!
Collect debugging data for a given resource
Example usage
2.6.1.31. oc adm migrate template-instances Copy linkLink copied to clipboard!
Update template instances to point to the latest group-version-kinds
Example usage
Perform a dry-run of updating all objects
# Perform a dry-run of updating all objects
oc adm migrate template-instances
# To actually perform the update, the confirm flag must be appended
oc adm migrate template-instances --confirm
2.6.1.32. oc adm must-gather Copy linkLink copied to clipboard!
Launch a new instance of a pod for gathering debug information
Example usage
2.6.1.33. oc adm new-project Copy linkLink copied to clipboard!
Create a new project
Example usage
Create a new project using a node selector
# Create a new project using a node selector
oc adm new-project myproject --node-selector='type=user-node,region=east'
2.6.1.34. oc adm node-logs Copy linkLink copied to clipboard!
Display and filter node logs
Example usage
2.6.1.35. oc adm pod-network isolate-projects Copy linkLink copied to clipboard!
Isolate project network
Example usage
Provide isolation for project p1
# 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'
2.6.1.36. oc adm pod-network join-projects Copy linkLink copied to clipboard!
Join project network
Example usage
Allow project p2 to use project p1 network
# 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'
2.6.1.37. oc adm pod-network make-projects-global Copy linkLink copied to clipboard!
Make project network global
Example usage
Allow project p1 to access all pods in the cluster and vice versa
# 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'
2.6.1.38. oc adm policy add-role-to-user Copy linkLink copied to clipboard!
Add a role to users or service accounts for the current project
Example usage
Add the 'view' role to user1 for the current project
# Add the 'view' role to user1 for the current project
oc policy add-role-to-user view user1
# Add the 'edit' role to serviceaccount1 for the current project
oc policy add-role-to-user edit -z serviceaccount1
2.6.1.39. oc adm policy add-scc-to-group Copy linkLink copied to clipboard!
Add a security context constraint to groups
Example usage
Add the 'restricted' security context constraint to group1 and group2
# Add the 'restricted' security context constraint to group1 and group2
oc adm policy add-scc-to-group restricted group1 group2
2.6.1.40. oc adm policy add-scc-to-user Copy linkLink copied to clipboard!
Add a security context constraint to users or a service account
Example usage
Add the 'restricted' security context constraint to user1 and user2
# 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
2.6.1.41. oc adm policy scc-review Copy linkLink copied to clipboard!
Check which service account can create a pod
Example usage
2.6.1.42. oc adm policy scc-subject-review Copy linkLink copied to clipboard!
Check whether a user or a service account can create a pod
Example usage
2.6.1.43. oc adm prune builds Copy linkLink copied to clipboard!
Remove old completed and failed builds
Example usage
2.6.1.44. oc adm prune deployments Copy linkLink copied to clipboard!
Remove old completed and failed deployment configs
Example usage
Dry run deleting all but the last complete deployment for every deployment config
# 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
2.6.1.45. oc adm prune groups Copy linkLink copied to clipboard!
Remove old OpenShift groups referencing missing records from an external provider
Example usage
2.6.1.46. oc adm prune images Copy linkLink copied to clipboard!
Remove unreferenced images
Example usage
2.6.1.47. oc adm release extract Copy linkLink copied to clipboard!
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
# 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
2.6.1.48. oc adm release info Copy linkLink copied to clipboard!
Display information about a release
Example usage
2.6.1.49. oc adm release mirror Copy linkLink copied to clipboard!
Mirror a release to a different image registry location
Example usage
2.6.1.50. oc adm release new Copy linkLink copied to clipboard!
Create a new OpenShift release
Example usage
2.6.1.51. oc adm taint Copy linkLink copied to clipboard!
Update the taints on one or more nodes
Example usage
2.6.1.52. oc adm top images Copy linkLink copied to clipboard!
Show usage statistics for images
Example usage
Show usage statistics for images
# Show usage statistics for images
oc adm top images
2.6.1.53. oc adm top imagestreams Copy linkLink copied to clipboard!
Show usage statistics for image streams
Example usage
Show usage statistics for image streams
# Show usage statistics for image streams
oc adm top imagestreams
2.6.1.54. oc adm top node Copy linkLink copied to clipboard!
Display Resource (CPU/Memory) usage of nodes
Example usage
Show metrics for all nodes
# Show metrics for all nodes
oc adm top node
# Show metrics for a given node
oc adm top node NODE_NAME
2.6.1.55. oc adm top pod Copy linkLink copied to clipboard!
Display Resource (CPU/Memory) usage of pods
Example usage
2.6.1.56. oc adm uncordon Copy linkLink copied to clipboard!
Mark node as schedulable
Example usage
Mark node "foo" as schedulable.
# Mark node "foo" as schedulable.
$ oc adm uncordon foo
2.6.1.57. oc adm verify-image-signature Copy linkLink copied to clipboard!
Verify the image identity contained in the image signature
Example usage
2.7. Usage of oc and kubectl commands Copy linkLink copied to clipboard!
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 Copy linkLink copied to clipboard!
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
, andImageStreamTag
objects are specific to OpenShift Container Platform distributions, and build upon standard Kubernetes primitives.Authentication
The
oc
binary offers a built-inlogin
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 commandoc new-project
makes it easier to start a project that you can switch to as your default.
If you installed an earlier version of the oc
binary, you cannot use it to complete all of the commands in OpenShift Container Platform 4.8. 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.
X.Y ( |
X.Y+N footnote:versionpolicyn[Where N is a number greater than or equal to 1.] ( | |
X.Y (Server) |
|
|
X.Y+N footnote:versionpolicyn[] (Server) |
|
|
Fully compatible.
oc
client might be unable 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 Copy linkLink copied to clipboard!
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.
Chapter 3. Developer CLI (odo) Copy linkLink copied to clipboard!
3.1. odo release notes Copy linkLink copied to clipboard!
3.1.1. Notable changes and improvements in odo version 2.5.0 Copy linkLink copied to clipboard!
-
Creates unique routes for each component, using
adler32
hashing Supports additional fields in the devfile for assigning resources:
- cpuRequest
- cpuLimit
- memoryRequest
- memoryLimit
Adds the
--deploy
flag to theodo delete
command, to remove components deployed using theodo deploy
command:odo delete --deploy
$ odo delete --deploy
Copy to Clipboard Copied! Toggle word wrap Toggle overflow -
Adds mapping support to the
odo link
command -
Supports ephemeral volumes using the
ephemeral
field involume
components -
Sets the default answer to
yes
when asking for telemetry opt-in - Improves metrics by sending additional telemetry data to the devfile registry
-
Updates the bootstrap image to
registry.access.redhat.com/ocp-tools-4/odo-init-container-rhel8:1.1.11
- The upstream repository is available at https://github.com/redhat-developer/odo
3.1.2. Bug fixes Copy linkLink copied to clipboard!
-
Previously,
odo deploy
would fail if the.odo/env
file did not exist. The command now creates the.odo/env
file if required. -
Previously, interactive component creation using the
odo create
command would fail if disconnect from the cluster. This issue is fixed in the latest release.
3.1.3. Getting support Copy linkLink copied to clipboard!
For Product
If you find an error, encounter a bug, or have suggestions for improving the functionality of odo
, file an issue in Bugzilla. Choose OpenShift Developer Tools and Services as a product type and odo as a component.
Provide as many details in the issue description as possible.
For Documentation
If you find an error or have suggestions for improving the documentation, file a Jira issue for the most relevant documentation component.
3.2. Understanding odo Copy linkLink copied to clipboard!
Red Hat OpenShift Developer CLI (odo
) is a tool for creating applications on OpenShift Container Platform and Kubernetes. With odo
, you can develop, test, debug, and deploy microservices-based applications on a Kubernetes cluster without having a deep understanding of the platform.
odo
follows a create and push workflow. As a user, when you create, the information (or manifest) is stored in a configuration file. When you push, the corresponding resources are created on the Kubernetes cluster. All of this configuration is stored in the Kubernetes API for seamless accessibility and functionality.
odo
uses service and link commands to link components and services together. odo
achieves this by creating and deploying services based on Kubernetes Operators in the cluster. Services can be created using any of the Operators available on the Operator Hub. After linking a service, odo
injects the service configuration into the component. Your application can then use this configuration to communicate with the Operator-backed service.
3.2.1. odo key features Copy linkLink copied to clipboard!
odo
is designed to be a developer-friendly interface to Kubernetes, with the ability to:
- Quickly deploy applications on a Kubernetes cluster by creating a new manifest or using an existing one
- Use commands to easily create and update the manifest, without the need to understand and maintain Kubernetes configuration files
- Provide secure access to applications running on a Kubernetes cluster
- Add and remove additional storage for applications on a Kubernetes cluster
- Create Operator-backed services and link your application to them
-
Create a link between multiple microservices that are deployed as
odo
components -
Remotely debug applications you deployed using
odo
in your IDE -
Easily test applications deployed on Kubernetes using
odo
3.2.2. odo core concepts Copy linkLink copied to clipboard!
odo
abstracts Kubernetes concepts into terminology that is familiar to developers:
- Application
A typical application, developed with a cloud-native approach, that is used to perform a particular task.
Examples of applications include online video streaming, online shopping, and hotel reservation systems.
- Component
A set of Kubernetes resources that can run and be deployed separately. A cloud-native application is a collection of small, independent, loosely coupled components.
Examples of components include an API back-end, a web interface, and a payment back-end.
- Project
- A single unit containing your source code, tests, and libraries.
- Context
-
A directory that contains the source code, tests, libraries, and
odo
config files for a single component. - URL
- A mechanism to expose a component for access from outside the cluster.
- Storage
- Persistent storage in the cluster. It persists the data across restarts and component rebuilds.
- Service
An external application that provides additional functionality to a component.
Examples of services include PostgreSQL, MySQL, Redis, and RabbitMQ.
In
odo
, services are provisioned from the OpenShift Service Catalog and must be enabled within your cluster.- devfile
An open standard for defining containerized development environments that enables developer tools to simplify and accelerate workflows. For more information, see the documentation at https://devfile.io.
You can connect to publicly available devfile registries, or you can install a Secure Registry.
3.2.3. Listing components in odo Copy linkLink copied to clipboard!
odo
uses the portable devfile format to describe components and their related URLs, storage, and services. odo
can connect to various devfile registries to download devfiles for different languages and frameworks. See the documentation for the odo registry
command for more information on how to manage the registries used by odo
to retrieve devfile information.
You can list all the devfiles available of the different registries with the odo catalog list components
command.
Procedure
Log in to the cluster with
odo
:odo login -u developer -p developer
$ odo login -u developer -p developer
Copy to Clipboard Copied! Toggle word wrap Toggle overflow List the available
odo
components:odo catalog list components
$ odo catalog list components
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Example output
Copy to Clipboard Copied! Toggle word wrap Toggle overflow
3.2.4. Telemetry in odo Copy linkLink copied to clipboard!
odo
collects information about how it is being used, including metrics on the operating system, RAM, CPU, number of cores, odo
version, errors, success/failures, and how long odo
commands take to complete.
You can modify your telemetry consent by using the odo preference
command:
-
odo preference set ConsentTelemetry true
consents to telemetry. -
odo preference unset ConsentTelemetry
disables telemetry. -
odo preference view
shows the current preferences.
3.3. Installing odo Copy linkLink copied to clipboard!
You can install the odo
CLI on Linux, Windows, or macOS by downloading a binary. You can also install the OpenShift VS Code extension, which uses both the odo
and the oc
binaries to interact with your OpenShift Container Platform cluster. For Red Hat Enterprise Linux (RHEL), you can install the odo
CLI as an RPM.
Currently, odo
does not support installation in a restricted network environment.
3.3.1. Installing odo on Linux Copy linkLink copied to clipboard!
The odo
CLI is available to download as a binary and as a tarball for multiple operating systems and architectures including:
Operating System | Binary | Tarball |
---|---|---|
Linux | ||
Linux on IBM Power | ||
Linux on IBM Z and LinuxONE |
Procedure
Navigate to the content gateway and download the appropriate file for your operating system and architecture.
If you download the binary, rename it to
odo
:curl -L https://developers.redhat.com/content-gateway/rest/mirror/pub/openshift-v4/clients/odo/latest/odo-linux-amd64 -o odo
$ curl -L https://developers.redhat.com/content-gateway/rest/mirror/pub/openshift-v4/clients/odo/latest/odo-linux-amd64 -o odo
Copy to Clipboard Copied! Toggle word wrap Toggle overflow If you download the tarball, extract the binary:
curl -L https://developers.redhat.com/content-gateway/rest/mirror/pub/openshift-v4/clients/odo/latest/odo-linux-amd64.tar.gz -o odo.tar.gz tar xvzf odo.tar.gz
$ curl -L https://developers.redhat.com/content-gateway/rest/mirror/pub/openshift-v4/clients/odo/latest/odo-linux-amd64.tar.gz -o odo.tar.gz $ tar xvzf odo.tar.gz
Copy to Clipboard Copied! Toggle word wrap Toggle overflow
Change the permissions on the binary:
chmod +x <filename>
$ chmod +x <filename>
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Place the
odo
binary in a directory that is on yourPATH
.To check your
PATH
, execute the following command:echo $PATH
$ echo $PATH
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Verify that
odo
is now available on your system:odo version
$ odo version
Copy to Clipboard Copied! Toggle word wrap Toggle overflow
3.3.2. Installing odo on Windows Copy linkLink copied to clipboard!
The odo
CLI for Windows is available to download as a binary and as an archive.
Operating System | Binary | Tarball |
---|---|---|
Windows |
Procedure
Navigate to the content gateway and download the appropriate file:
-
If you download the binary, rename it to
odo.exe
. -
If you download the archive, unzip the binary with a ZIP program and then rename it to
odo.exe
.
-
If you download the binary, rename it to
Move the
odo.exe
binary to a directory that is on yourPATH
.To check your
PATH
, open the command prompt and execute the following command:path
C:\> path
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Verify that
odo
is now available on your system:odo version
C:\> odo version
Copy to Clipboard Copied! Toggle word wrap Toggle overflow
3.3.3. Installing odo on macOS Copy linkLink copied to clipboard!
The odo
CLI for macOS is available to download as a binary and as a tarball.
Operating System | Binary | Tarball |
---|---|---|
macOS |
Procedure
Navigate to the content gateway and download the appropriate file:
If you download the binary, rename it to
odo
:curl -L https://developers.redhat.com/content-gateway/rest/mirror/pub/openshift-v4/clients/odo/latest/odo-darwin-amd64 -o odo
$ curl -L https://developers.redhat.com/content-gateway/rest/mirror/pub/openshift-v4/clients/odo/latest/odo-darwin-amd64 -o odo
Copy to Clipboard Copied! Toggle word wrap Toggle overflow If you download the tarball, extract the binary:
curl -L https://developers.redhat.com/content-gateway/rest/mirror/pub/openshift-v4/clients/odo/latest/odo-darwin-amd64.tar.gz -o odo.tar.gz tar xvzf odo.tar.gz
$ curl -L https://developers.redhat.com/content-gateway/rest/mirror/pub/openshift-v4/clients/odo/latest/odo-darwin-amd64.tar.gz -o odo.tar.gz $ tar xvzf odo.tar.gz
Copy to Clipboard Copied! Toggle word wrap Toggle overflow
Change the permissions on the binary:
chmod +x odo
# chmod +x odo
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Place the
odo
binary in a directory that is on yourPATH
.To check your
PATH
, execute the following command:echo $PATH
$ echo $PATH
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Verify that
odo
is now available on your system:odo version
$ odo version
Copy to Clipboard Copied! Toggle word wrap Toggle overflow
3.3.4. Installing odo on VS Code Copy linkLink copied to clipboard!
The OpenShift VS Code extension uses both odo
and the oc
binary to interact with your OpenShift Container Platform cluster. To work with these features, install the OpenShift VS Code extension on VS Code.
Prerequisites
- You have installed VS Code.
Procedure
- Open VS Code.
-
Launch VS Code Quick Open with
Ctrl
+P
. Enter the following command:
ext install redhat.vscode-openshift-connector
$ ext install redhat.vscode-openshift-connector
Copy to Clipboard Copied! Toggle word wrap Toggle overflow
3.3.5. Installing odo on Red Hat Enterprise Linux (RHEL) using an RPM Copy linkLink copied to clipboard!
For Red Hat Enterprise Linux (RHEL), you can install the odo
CLI as an RPM.
Procedure
Register with Red Hat Subscription Manager:
subscription-manager register
# subscription-manager register
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Pull the latest subscription data:
subscription-manager refresh
# subscription-manager refresh
Copy to Clipboard Copied! Toggle word wrap Toggle overflow List the available subscriptions:
subscription-manager list --available --matches '*OpenShift Developer Tools and Services*'
# subscription-manager list --available --matches '*OpenShift Developer Tools and Services*'
Copy to Clipboard Copied! Toggle word wrap Toggle overflow In the output of the previous command, find the
Pool ID
field for your OpenShift Container Platform subscription and attach the subscription to the registered system:subscription-manager attach --pool=<pool_id>
# subscription-manager attach --pool=<pool_id>
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Enable the repositories required by
odo
:subscription-manager repos --enable="ocp-tools-4.9-for-rhel-8-x86_64-rpms"
# subscription-manager repos --enable="ocp-tools-4.9-for-rhel-8-x86_64-rpms"
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Install the
odo
package:yum install odo
# yum install odo
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Verify that
odo
is now available on your system:odo version
$ odo version
Copy to Clipboard Copied! Toggle word wrap Toggle overflow
3.4. Configuring the odo CLI Copy linkLink copied to clipboard!
You can find the global settings for odo
in the preference.yaml
file which is located by default in your $HOME/.odo
directory.
You can set a different location for the preference.yaml
file by exporting the GLOBALODOCONFIG
variable.
3.4.1. Viewing the current configuration Copy linkLink copied to clipboard!
You can view the current odo
CLI configuration by using the following command:
odo preference view
$ odo preference view
Example output
3.4.2. Setting a value Copy linkLink copied to clipboard!
You can set a value for a preference key by using the following command:
odo preference set <key> <value>
$ odo preference set <key> <value>
Preference keys are case-insensitive.
Example command
odo preference set updatenotification false
$ odo preference set updatenotification false
Example output
Global preference was successfully updated
Global preference was successfully updated
3.4.3. Unsetting a value Copy linkLink copied to clipboard!
You can unset a value for a preference key by using the following command:
odo preference unset <key>
$ odo preference unset <key>
You can use the -f
flag to skip the confirmation.
Example command
odo preference unset updatenotification
$ odo preference unset updatenotification
? Do you want to unset updatenotification in the preference (y/N) y
Example output
Global preference was successfully updated
Global preference was successfully updated
3.4.4. Preference key table Copy linkLink copied to clipboard!
The following table shows the available options for setting preference keys for the odo
CLI:
Preference key | Description | Default value |
---|---|---|
|
Control whether a notification to update | True |
|
Set a default name prefix for an | Current directory name |
| Timeout for the Kubernetes server connection check. | 1 second |
| Timeout for waiting for a build of the git component to complete. | 300 seconds |
| Timeout for waiting for a component to start. | 240 seconds |
|
Controls whether | True |
|
Controls whether | False |
3.4.5. Ignoring files or patterns Copy linkLink copied to clipboard!
You can configure a list of files or patterns to ignore by modifying the .odoignore
file in the root directory of your application. This applies to both odo push
and odo watch
.
If the .odoignore
file does not exist, the .gitignore
file is used instead for ignoring specific files and folders.
To ignore .git
files, any files with the .js
extension, and the folder tests
, add the following to either the .odoignore
or the .gitignore
file:
.git *.js tests/
.git
*.js
tests/
The .odoignore
file allows any glob expressions.
3.5. odo CLI reference Copy linkLink copied to clipboard!
3.5.1. odo build-images Copy linkLink copied to clipboard!
odo
can build container images based on Dockerfiles, and push these images to their registries.
When running the odo build-images
command, odo
searches for all components in the devfile.yaml
with the image
type, for example:
- 1
- The
uri
field indicates the relative path of the Dockerfile to use, relative to the directory containing thedevfile.yaml
. The devfile specification indicates thaturi
could also be an HTTP URL, but this case is not supported by odo yet. - 2
- The
buildContext
indicates the directory used as build context. The default value is${PROJECTS_ROOT}
.
For each image component, odo executes either podman
or docker
(the first one found, in this order), to build the image with the specified Dockerfile, build context, and arguments.
If the --push
flag is passed to the command, the images are pushed to their registries after they are built.
3.5.2. odo catalog Copy linkLink copied to clipboard!
odo
uses different catalogs to deploy components and services.
3.5.2.1. Components Copy linkLink copied to clipboard!
odo
uses the portable devfile format to describe the components. It can connect to various devfile registries to download devfiles for different languages and frameworks. See odo registry
for more information.
3.5.2.1.1. Listing components Copy linkLink copied to clipboard!
To list all the devfiles available on the different registries, run the command:
odo catalog list components
$ odo catalog list components
Example output
3.5.2.1.2. Getting information about a component Copy linkLink copied to clipboard!
To get more information about a specific component, run the command:
odo catalog describe component
$ odo catalog describe component
For example, run the command:
odo catalog describe component nodejs
$ odo catalog describe component nodejs
Example output
See odo create
for more information on creating a project from a starter project.
3.5.2.2. Services Copy linkLink copied to clipboard!
odo
can deploy services with the help of Operators.
Only Operators deployed with the help of the Operator Lifecycle Manager are supported by odo.
3.5.2.2.1. Listing services Copy linkLink copied to clipboard!
To list the available Operators and their associated services, run the command:
odo catalog list services
$ odo catalog list services
Example output
Services available through Operators NAME CRDs postgresql-operator.v0.1.1 Backup, Database redis-operator.v0.8.0 RedisCluster, Redis
Services available through Operators
NAME CRDs
postgresql-operator.v0.1.1 Backup, Database
redis-operator.v0.8.0 RedisCluster, Redis
In this example, two Operators are installed in the cluster. The postgresql-operator.v0.1.1
Operator deploys services related to PostgreSQL: Backup
and Database
. The redis-operator.v0.8.0
Operator deploys services related to Redis: RedisCluster
and Redis
.
To get a list of all the available Operators, odo
fetches the ClusterServiceVersion (CSV) resources of the current namespace that are in a Succeeded phase. For Operators that support cluster-wide access, when a new namespace is created, these resources are automatically added to it. However, it may take some time before they are in the Succeeded phase, and odo
may return an empty list until the resources are ready.
3.5.2.2.2. Searching services Copy linkLink copied to clipboard!
To search for a specific service by a keyword, run the command:
odo catalog search service
$ odo catalog search service
For example, to retrieve the PostgreSQL services, run the command:
odo catalog search service postgres
$ odo catalog search service postgres
Example output
Services available through Operators NAME CRDs postgresql-operator.v0.1.1 Backup, Database
Services available through Operators
NAME CRDs
postgresql-operator.v0.1.1 Backup, Database
You will see a list of Operators that contain the searched keyword in their name.
3.5.2.2.3. Getting information about a service Copy linkLink copied to clipboard!
To get more information about a specific service, run the command:
odo catalog describe service
$ odo catalog describe service
For example:
odo catalog describe service postgresql-operator.v0.1.1/Database
$ odo catalog describe service postgresql-operator.v0.1.1/Database
Example output
A service is represented in the cluster by a CustomResourceDefinition (CRD) resource. The previous command displays the details about the CRD such as kind
, version
, and the list of fields available to define an instance of this custom resource.
The list of fields is extracted from the OpenAPI schema included in the CRD. This information is optional in a CRD, and if it is not present, it is extracted from the ClusterServiceVersion (CSV) resource representing the service instead.
It is also possible to request the description of an Operator-backed service, without providing CRD type information. To describe the Redis Operator on a cluster, without CRD, run the following command:
odo catalog describe service redis-operator.v0.8.0
$ odo catalog describe service redis-operator.v0.8.0
Example output
3.5.3. odo create Copy linkLink copied to clipboard!
odo
uses a devfile to store the configuration of a component and to describe the component’s resources such as storage and services. The odo create command generates this file.
3.5.3.1. Creating a component Copy linkLink copied to clipboard!
To create a devfile for an existing project, run the odo create
command with the name and type of your component (for example, nodejs
or go
):
odo create nodejs mynodejs
odo create nodejs mynodejs
In the example, nodejs
is the type of the component and mynodejs
is the name of the component that odo
creates for you.
For a list of all the supported component types, run the command odo catalog list components
.
If your source code exists outside the current directory, the --context
flag can be used to specify the path. For example, if the source for the nodejs component is in a folder called node-backend
relative to the current working directory, run the command:
odo create nodejs mynodejs --context ./node-backend
odo create nodejs mynodejs --context ./node-backend
The --context
flag supports relative and absolute paths.
To specify the project or app where your component will be deployed, use the --project
and --app
flags. For example, to create a component that is part of the myapp
app inside the backend
project, run the command:
odo create nodejs --app myapp --project backend
odo create nodejs --app myapp --project backend
If these flags are not specified, they will default to the active app and project.
3.5.3.2. Starter projects Copy linkLink copied to clipboard!
Use the starter projects if you do not have existing source code but want to get up and running quickly to experiment with devfiles and components. To use a starter project, add the --starter
flag to the odo create
command.
To get a list of available starter projects for a component type, run the odo catalog describe component
command. For example, to get all available starter projects for the nodejs component type, run the command:
odo catalog describe component nodejs
odo catalog describe component nodejs
Then specify the desired project using the --starter
flag on the odo create
command:
odo create nodejs --starter nodejs-starter
odo create nodejs --starter nodejs-starter
This will download the example template corresponding to the chosen component type, in this instance, nodejs
. The template is downloaded to your current directory, or to the location specified by the --context
flag. If a starter project has its own devfile, then this devfile will be preserved.
3.5.3.3. Using an existing devfile Copy linkLink copied to clipboard!
If you want to create a new component from an existing devfile, you can do so by specifying the path to the devfile using the --devfile
flag. For example, to create a component called mynodejs
, based on a devfile from GitHub, use the following command:
odo create mynodejs --devfile https://raw.githubusercontent.com/odo-devfiles/registry/master/devfiles/nodejs/devfile.yaml
odo create mynodejs --devfile https://raw.githubusercontent.com/odo-devfiles/registry/master/devfiles/nodejs/devfile.yaml
3.5.3.4. Interactive creation Copy linkLink copied to clipboard!
You can also run the odo create
command interactively, to guide you through the steps needed to create a component:
You are prompted to choose the component type, name, and the project for the component. You can also choose whether or not to download a starter project. Once finished, a new devfile.yaml
file is created in the working directory.
To deploy these resources to your cluster, run the command odo push
.
3.5.4. odo delete Copy linkLink copied to clipboard!
The odo delete
command is useful for deleting resources that are managed by odo
.
3.5.4.1. Deleting a component Copy linkLink copied to clipboard!
To delete a devfile component, run the odo delete
command:
odo delete
$ odo delete
If the component has been pushed to the cluster, the component is deleted from the cluster, along with its dependent storage, URL, secrets, and other resources. If the component has not been pushed, the command exits with an error stating that it could not find the resources on the cluster.
Use the -f
or --force
flag to avoid the confirmation questions.
3.5.4.2. Undeploying devfile Kubernetes components Copy linkLink copied to clipboard!
To undeploy the devfile Kubernetes components, that have been deployed with odo deploy
, execute the odo delete
command with the --deploy
flag:
odo delete --deploy
$ odo delete --deploy
Use the -f
or --force
flag to avoid the confirmation questions.
3.5.4.3. Delete all Copy linkLink copied to clipboard!
To delete all artifacts including the following items, run the odo delete
command with the --all
flag :
- devfile component
-
Devfile Kubernetes component that was deployed using the
odo deploy
command - Devfile
- Local configuration
odo delete --all
$ odo delete --all
3.5.4.4. Available flags Copy linkLink copied to clipboard!
-f
,--force
- Use this flag to avoid the confirmation questions.
-w
,--wait
- Use this flag to wait for component deletion and any dependencies. This flag does not work when undeploying.
The documentation on Common Flags provides more information on the flags available for commands.
3.5.5. odo deploy Copy linkLink copied to clipboard!
odo
can be used to deploy components in a manner similar to how they would be deployed using a CI/CD system. First, odo
builds the container images, and then it deploys the Kubernetes resources required to deploy the components.
When running the command odo deploy
, odo
searches for the default command of kind deploy
in the devfile, and executes this command. The kind deploy
is supported by the devfile format starting from version 2.2.0.
The deploy
command is typically a composite command, composed of several apply commands:
-
A command referencing an
image
component that, when applied, will build the image of the container to deploy, and then push it to its registry. - A command referencing a Kubernetes component that, when applied, will create a Kubernetes resource in the cluster.
With the following example devfile.yaml
file, a container image is built using the Dockerfile
present in the directory. The image is pushed to its registry and then a Kubernetes Deployment resource is created in the cluster, using this freshly built image.
3.5.6. odo link Copy linkLink copied to clipboard!
The odo link
command helps link an odo
component to an Operator-backed service or another odo
component. It does this by using the Service Binding Operator. Currently, odo
makes use of the Service Binding library and not the Operator itself to achieve the desired functionality.
3.5.6.1. Various linking options Copy linkLink copied to clipboard!
odo
provides various options for linking a component with an Operator-backed service or another odo
component. All these options (or flags) can be used whether you are linking a component to a service or to another component.
3.5.6.1.1. Default behavior Copy linkLink copied to clipboard!
By default, the odo link
command creates a directory named kubernetes/
in your component directory and stores the information (YAML manifests) about services and links there. When you use odo push
, odo
compares these manifests with the state of the resources on the Kubernetes cluster and decides whether it needs to create, modify or destroy resources to match what is specified by the user.
3.5.6.1.2. The --inlined flag Copy linkLink copied to clipboard!
If you specify the --inlined
flag to the odo link
command, odo
stores the link information inline in the devfile.yaml
in the component directory, instead of creating a file under the kubernetes/
directory. The behavior of the --inlined
flag is similar in both the odo link
and odo service create
commands. This flag is helpful if you want everything stored in a single devfile.yaml
. You have to remember to use --inlined
flag with each odo link
and odo service create
command that you execute for the component.
3.5.6.1.3. The --map flag Copy linkLink copied to clipboard!
Sometimes, you might want to add more binding information to the component, in addition to what is available by default. For example, if you are linking the component with a service and would like to bind some information from the service’s spec (short for specification), you could use the --map
flag. Note that odo
does not do any validation against the spec of the service or component being linked. Using this flag is only recommended if you are comfortable using the Kubernetes YAML manifests.
3.5.6.1.4. The --bind-as-files flag Copy linkLink copied to clipboard!
For all the linking options discussed so far, odo
injects the binding information into the component as environment variables. If you would like to mount this information as files instead, you can use the --bind-as-files
flag. This will make odo
inject the binding information as files into the /bindings
location within your component’s Pod. Compared to the environment variables scenario, when you use --bind-as-files
, the files are named after the keys and the value of these keys is stored as the contents of these files.
3.5.6.2. Examples Copy linkLink copied to clipboard!
3.5.6.2.1. Default odo link Copy linkLink copied to clipboard!
In the following example, the backend component is linked with the PostgreSQL service using the default odo link
command. For the backend component, make sure that your component and service are pushed to the cluster:
odo list
$ odo list
Sample output
APP NAME PROJECT TYPE STATE MANAGED BY ODO app backend myproject spring Pushed Yes
APP NAME PROJECT TYPE STATE MANAGED BY ODO
app backend myproject spring Pushed Yes
odo service list
$ odo service list
Sample output
NAME MANAGED BY ODO STATE AGE PostgresCluster/hippo Yes (backend) Pushed 59m41s
NAME MANAGED BY ODO STATE AGE
PostgresCluster/hippo Yes (backend) Pushed 59m41s
Now, run odo link
to link the backend component with the PostgreSQL service:
odo link PostgresCluster/hippo
$ odo link PostgresCluster/hippo
Example output
✓ Successfully created link between component "backend" and service "PostgresCluster/hippo" To apply the link, please use `odo push`
✓ Successfully created link between component "backend" and service "PostgresCluster/hippo"
To apply the link, please use `odo push`
And then run odo push
to actually create the link on the Kubernetes cluster.
After a successful odo push
, you will see a few outcomes:
When you open the URL for the application deployed by backend component, it shows a list of
todo
items in the database. For example, in the output for theodo url list
command, the path wheretodos
are listed is included:odo url list
$ odo url list
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Sample output
Found the following URLs for component backend NAME STATE URL PORT SECURE KIND 8080-tcp Pushed http://8080-tcp.192.168.39.112.nip.io 8080 false ingress
Found the following URLs for component backend NAME STATE URL PORT SECURE KIND 8080-tcp Pushed http://8080-tcp.192.168.39.112.nip.io 8080 false ingress
Copy to Clipboard Copied! Toggle word wrap Toggle overflow The correct path for the URL would be http://8080-tcp.192.168.39.112.nip.io/api/v1/todos. The exact URL depends on your setup. Also note that there are no
todos
in the database unless you add some, so the URL might just show an empty JSON object.You can see binding information related to the Postgres service injected into the backend component. This binding information is injected, by default, as environment variables. You can check it using the
odo describe
command from the backend component’s directory:odo describe
$ odo describe
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Example output:
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Some of these variables are used in the backend component’s
src/main/resources/application.properties
file so that the Java Spring Boot application can connect to the PostgreSQL database service.Lastly,
odo
has created a directory calledkubernetes/
in your backend component’s directory that contains the following files:ls kubernetes
$ ls kubernetes odo-service-backend-postgrescluster-hippo.yaml odo-service-hippo.yaml
Copy to Clipboard Copied! Toggle word wrap Toggle overflow These files contain the information (YAML manifests) for two resources:
-
odo-service-hippo.yaml
- the Postgres service created usingodo service create --from-file ../postgrescluster.yaml
command. -
odo-service-backend-postgrescluster-hippo.yaml
- the link created usingodo link
command.
-
3.5.6.2.2. Using odo link with the --inlined flag Copy linkLink copied to clipboard!
Using the --inlined
flag with the odo link
command has the same effect as an odo link
command without the flag, in that it injects binding information. However, the subtle difference is that in the above case, there are two manifest files under kubernetes/
directory, one for the Postgres service and another for the link between the backend component and this service. However, when you pass the --inlined
flag, odo
does not create a file under the kubernetes/
directory to store the YAML manifest, but rather stores it inline in the devfile.yaml
file.
To see this, unlink the component from the PostgreSQL service first:
odo unlink PostgresCluster/hippo
$ odo unlink PostgresCluster/hippo
Example output:
✓ Successfully unlinked component "backend" from service "PostgresCluster/hippo" To apply the changes, please use `odo push`
✓ Successfully unlinked component "backend" from service "PostgresCluster/hippo"
To apply the changes, please use `odo push`
To unlink them on the cluster, run odo push
. Now if you inspect the kubernetes/
directory, you see only one file:
ls kubernetes
$ ls kubernetes
odo-service-hippo.yaml
Next, use the --inlined
flag to create a link:
odo link PostgresCluster/hippo --inlined
$ odo link PostgresCluster/hippo --inlined
Example output:
✓ Successfully created link between component "backend" and service "PostgresCluster/hippo" To apply the link, please use `odo push`
✓ Successfully created link between component "backend" and service "PostgresCluster/hippo"
To apply the link, please use `odo push`
You need to run odo push
for the link to get created on the cluster, like the procedure that omits the --inlined
flag. odo
stores the configuration in devfile.yaml
. In this file, you can see an entry like the following:
Now if you were to run odo unlink PostgresCluster/hippo
, odo
would first remove the link information from the devfile.yaml
, and then a subsequent odo push
would delete the link from the cluster.
3.5.6.2.3. Custom bindings Copy linkLink copied to clipboard!
odo link
accepts the flag --map
which can inject custom binding information into the component. Such binding information will be fetched from the manifest of the resource that you are linking to your component. For example, in the context of the backend component and PostgreSQL service, you can inject information from the PostgreSQL service’s manifest postgrescluster.yaml
file into the backend component.
If the name of your PostgresCluster
service is hippo
(or the output of odo service list
, if your PostgresCluster service is named differently), when you want to inject the value of postgresVersion
from that YAML definition into your backend component, run the command:
odo link PostgresCluster/hippo --map pgVersion='{{ .hippo.spec.postgresVersion }}'
$ odo link PostgresCluster/hippo --map pgVersion='{{ .hippo.spec.postgresVersion }}'
Note that, if the name of your Postgres service is different from hippo
, you will have to specify that in the above command in the place of .hippo
in the value for pgVersion
.
After a link operation, run odo push
as usual. Upon successful completion of the push operation, you can run the following command from your backend component directory, to validate if the custom mapping got injected properly:
odo exec -- env | grep pgVersion
$ odo exec -- env | grep pgVersion
Example output:
pgVersion=13
pgVersion=13
Since you might want to inject more than just one piece of custom binding information, odo link
accepts multiple key-value pairs of mappings. The only constraint is that these should be specified as --map <key>=<value>
. For example, if you want to also inject PostgreSQL image information along with the version, you could run:
odo link PostgresCluster/hippo --map pgVersion='{{ .hippo.spec.postgresVersion }}' --map pgImage='{{ .hippo.spec.image }}'
$ odo link PostgresCluster/hippo --map pgVersion='{{ .hippo.spec.postgresVersion }}' --map pgImage='{{ .hippo.spec.image }}'
and then run odo push
. To validate if both the mappings got injected correctly, run the following command:
odo exec -- env | grep -e "pgVersion\|pgImage"
$ odo exec -- env | grep -e "pgVersion\|pgImage"
Example output:
pgVersion=13 pgImage=registry.developers.crunchydata.com/crunchydata/crunchy-postgres-ha:centos8-13.4-0
pgVersion=13
pgImage=registry.developers.crunchydata.com/crunchydata/crunchy-postgres-ha:centos8-13.4-0
3.5.6.2.3.1. To inline or not? Copy linkLink copied to clipboard!
You can accept the default behavior where odo link
generate a manifests file for the link under kubernetes/
directory. Alternatively, you can use the --inlined
flag if you prefer to store everything in a single devfile.yaml
file.
3.5.6.3. Binding as files Copy linkLink copied to clipboard!
Another helpful flag that odo link
provides is --bind-as-files
. When this flag is passed, the binding information is not injected into the component’s Pod as environment variables but is mounted as a filesystem.
Ensure that there are no existing links between the backend component and the PostgreSQL service. You could do this by running odo describe
in the backend component’s directory and check if you see output similar to the following:
Linked Services: · PostgresCluster/hippo
Linked Services:
· PostgresCluster/hippo
Unlink the service from the component using:
odo unlink PostgresCluster/hippo odo push
$ odo unlink PostgresCluster/hippo
$ odo push
3.5.6.4. --bind-as-files examples Copy linkLink copied to clipboard!
3.5.6.4.1. Using the default odo link Copy linkLink copied to clipboard!
By default, odo
creates the manifest file under the kubernetes/
directory, for storing the link information. Link the backend component and PostgreSQL service using:
odo link PostgresCluster/hippo --bind-as-files odo push
$ odo link PostgresCluster/hippo --bind-as-files
$ odo push
Example odo describe
output:
Everything that was an environment variable in the key=value
format in the earlier odo describe
output is now mounted as a file. Use the cat
command to view the contents of some of these files:
Example command:
odo exec -- cat /bindings/backend-postgrescluster-hippo/password
$ odo exec -- cat /bindings/backend-postgrescluster-hippo/password
Example output:
q({JC:jn^mm/Bw}eu+j.GX{k
q({JC:jn^mm/Bw}eu+j.GX{k
Example command:
odo exec -- cat /bindings/backend-postgrescluster-hippo/user
$ odo exec -- cat /bindings/backend-postgrescluster-hippo/user
Example output:
hippo
hippo
Example command:
odo exec -- cat /bindings/backend-postgrescluster-hippo/clusterIP
$ odo exec -- cat /bindings/backend-postgrescluster-hippo/clusterIP
Example output:
10.101.78.56
10.101.78.56
3.5.6.4.2. Using --inlined Copy linkLink copied to clipboard!
The result of using --bind-as-files
and --inlined
together is similar to using odo link --inlined
. The manifest of the link gets stored in the devfile.yaml
, instead of being stored in a separate file under kubernetes/
directory. Other than that, the odo describe
output would be the same as earlier.
3.5.6.4.3. Custom bindings Copy linkLink copied to clipboard!
When you pass custom bindings while linking the backend component with the PostgreSQL service, these custom bindings are injected not as environment variables but are mounted as files. For example:
odo link PostgresCluster/hippo --map pgVersion='{{ .hippo.spec.postgresVersion }}' --map pgImage='{{ .hippo.spec.image }}' --bind-as-files odo push
$ odo link PostgresCluster/hippo --map pgVersion='{{ .hippo.spec.postgresVersion }}' --map pgImage='{{ .hippo.spec.image }}' --bind-as-files
$ odo push
These custom bindings get mounted as files instead of being injected as environment variables. To validate that this worked, run the following command:
Example command:
odo exec -- cat /bindings/backend-postgrescluster-hippo/pgVersion
$ odo exec -- cat /bindings/backend-postgrescluster-hippo/pgVersion
Example output:
13
13
Example command:
odo exec -- cat /bindings/backend-postgrescluster-hippo/pgImage
$ odo exec -- cat /bindings/backend-postgrescluster-hippo/pgImage
Example output:
registry.developers.crunchydata.com/crunchydata/crunchy-postgres-ha:centos8-13.4-0
registry.developers.crunchydata.com/crunchydata/crunchy-postgres-ha:centos8-13.4-0
3.5.7. odo registry Copy linkLink copied to clipboard!
odo
uses the portable devfile format to describe the components. odo
can connect to various devfile registries, to download devfiles for different languages and frameworks.
You can connect to publicly available devfile registries, or you can install your own Secure Registry.
You can use the odo registry
command to manage the registries that are used by odo
to retrieve devfile information.
3.5.7.1. Listing the registries Copy linkLink copied to clipboard!
To list the registries currently contacted by odo
, run the command:
odo registry list
$ odo registry list
Example output:
NAME URL SECURE DefaultDevfileRegistry https://registry.devfile.io No
NAME URL SECURE
DefaultDevfileRegistry https://registry.devfile.io No
DefaultDevfileRegistry
is the default registry used by odo; it is provided by the devfile.io project.
3.5.7.2. Adding a registry Copy linkLink copied to clipboard!
To add a registry, run the command:
odo registry add
$ odo registry add
Example output:
odo registry add StageRegistry https://registry.stage.devfile.io
$ odo registry add StageRegistry https://registry.stage.devfile.io
New registry successfully added
If you are deploying your own Secure Registry, you can specify the personal access token to authenticate to the secure registry with the --token
flag:
odo registry add MyRegistry https://myregistry.example.com --token <access_token>
$ odo registry add MyRegistry https://myregistry.example.com --token <access_token>
New registry successfully added
3.5.7.3. Deleting a registry Copy linkLink copied to clipboard!
To delete a registry, run the command:
odo registry delete
$ odo registry delete
Example output:
odo registry delete StageRegistry
$ odo registry delete StageRegistry
? Are you sure you want to delete registry "StageRegistry" Yes
Successfully deleted registry
Use the --force
(or -f
) flag to force the deletion of the registry without confirmation.
3.5.7.4. Updating a registry Copy linkLink copied to clipboard!
To update the URL or the personal access token of a registry already registered, run the command:
odo registry update
$ odo registry update
Example output:
odo registry update MyRegistry https://otherregistry.example.com --token <other_access_token>
$ odo registry update MyRegistry https://otherregistry.example.com --token <other_access_token>
? Are you sure you want to update registry "MyRegistry" Yes
Successfully updated registry
Use the --force
(or -f
) flag to force the update of the registry without confirmation.
3.5.8. odo service Copy linkLink copied to clipboard!
odo
can deploy services with the help of Operators.
The list of available Operators and services available for installation can be found using the odo catalog
command.
Services are created in the context of a component, so run the odo create
command before you deploy services.
A service is deployed using two steps:
- Define the service and store its definition in the devfile.
-
Deploy the defined service to the cluster, using the
odo push
command.
3.5.8.1. Creating a new service Copy linkLink copied to clipboard!
To create a new service, run the command:
odo service create
$ odo service create
For example, to create an instance of a Redis service named my-redis-service
, you can run the following command:
Example output
This command creates a Kubernetes manifest in the kubernetes/
directory, containing the definition of the service, and this file is referenced from the devfile.yaml
file.
cat kubernetes/odo-service-my-redis-service.yaml
$ cat kubernetes/odo-service-my-redis-service.yaml
Example output
Example command
cat devfile.yaml
$ cat devfile.yaml
Example output
Note that the name of the created instance is optional. If you do not provide a name, it will be the lowercase name of the service. For example, the following command creates an instance of a Redis service named redis
:
odo service create redis-operator.v0.8.0/Redis
$ odo service create redis-operator.v0.8.0/Redis
3.5.8.1.1. Inlining the manifest Copy linkLink copied to clipboard!
By default, a new manifest is created in the kubernetes/
directory, referenced from the devfile.yaml
file. It is possible to inline the manifest inside the devfile.yaml
file using the --inlined
flag:
odo service create redis-operator.v0.8.0/Redis my-redis-service --inlined
$ odo service create redis-operator.v0.8.0/Redis my-redis-service --inlined
Successfully added service to the configuration; do 'odo push' to create service on the cluster
Example command
cat devfile.yaml
$ cat devfile.yaml
Example output
3.5.8.1.2. Configuring the service Copy linkLink copied to clipboard!
Without specific customization, the service will be created with a default configuration. You can use either command-line arguments or a file to specify your own configuration.
3.5.8.1.2.1. Using command-line arguments Copy linkLink copied to clipboard!
Use the --parameters
(or -p
) flag to specify your own configuration.
The following example configures the Redis service with three parameters:
odo service create redis-operator.v0.8.0/Redis my-redis-service \ -p kubernetesConfig.image=quay.io/opstree/redis:v6.2.5 \ -p kubernetesConfig.serviceType=ClusterIP \ -p redisExporter.image=quay.io/opstree/redis-exporter:1.0
$ odo service create redis-operator.v0.8.0/Redis my-redis-service \
-p kubernetesConfig.image=quay.io/opstree/redis:v6.2.5 \
-p kubernetesConfig.serviceType=ClusterIP \
-p redisExporter.image=quay.io/opstree/redis-exporter:1.0
Successfully added service to the configuration; do 'odo push' to create service on the cluster
Example command
cat kubernetes/odo-service-my-redis-service.yaml
$ cat kubernetes/odo-service-my-redis-service.yaml
Example output
You can obtain the possible parameters for a specific service using the odo catalog describe service
command.
3.5.8.1.2.2. Using a file Copy linkLink copied to clipboard!
Use a YAML manifest to configure your own specification. In the following example, the Redis service is configured with three parameters.
Create a manifest:
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Create the service from the manifest:
odo service create --from-file my-redis.yaml
$ odo service create --from-file my-redis.yaml Successfully added service to the configuration; do 'odo push' to create service on the cluster
Copy to Clipboard Copied! Toggle word wrap Toggle overflow
3.5.8.2. Deleting a service Copy linkLink copied to clipboard!
To delete a service, run the command:
odo service delete
$ odo service delete
Example output
odo service list
$ odo service list
NAME MANAGED BY ODO STATE AGE
Redis/my-redis-service Yes (api) Deleted locally 5m39s
odo service delete Redis/my-redis-service
$ odo service delete Redis/my-redis-service
? Are you sure you want to delete Redis/my-redis-service Yes
Service "Redis/my-redis-service" has been successfully deleted; do 'odo push' to delete service from the cluster
Use the --force
(or -f
) flag to force the deletion of the service without confirmation.
3.5.8.3. Listing services Copy linkLink copied to clipboard!
To list the services created for your component, run the command:
odo service list
$ odo service list
Example output
odo service list
$ odo service list
NAME MANAGED BY ODO STATE AGE
Redis/my-redis-service-1 Yes (api) Not pushed
Redis/my-redis-service-2 Yes (api) Pushed 52s
Redis/my-redis-service-3 Yes (api) Deleted locally 1m22s
For each service, STATE
indicates if the service has been pushed to the cluster using the odo push
command, or if the service is still running on the cluster but removed from the devfile locally using the odo service delete
command.
3.5.8.4. Getting information about a service Copy linkLink copied to clipboard!
To get details of a service such as its kind, version, name, and list of configured parameters, run the command:
odo service describe
$ odo service describe
Example output
3.5.9. odo storage Copy linkLink copied to clipboard!
odo
lets users manage storage volumes that are attached to the components. A storage volume can be either an ephemeral volume using an emptyDir
Kubernetes volume, or a Persistent Volume Claim (PVC). A PVC allows users to claim a persistent volume (such as a GCE PersistentDisk or an iSCSI volume) without understanding the details of the particular cloud environment. The persistent storage volume can be used to persist data across restarts and rebuilds of the component.
3.5.9.1. Adding a storage volume Copy linkLink copied to clipboard!
To add a storage volume to the cluster, run the command:
odo storage create
$ odo storage create
Example output:
In the above example, the first storage volume has been mounted to the /data
path and has a size of 1Gi
, and the second volume has been mounted to /tmp
and is ephemeral.
3.5.9.2. Listing the storage volumes Copy linkLink copied to clipboard!
To check the storage volumes currently used by the component, run the command:
odo storage list
$ odo storage list
Example output:
odo storage list
$ odo storage list
The component 'nodejs-project-ufyy' has the following storage attached:
NAME SIZE PATH STATE
store 1Gi /data Not Pushed
tempdir 2Gi /tmp Not Pushed
3.5.9.3. Deleting a storage volume Copy linkLink copied to clipboard!
To delete a storage volume, run the command:
odo storage delete
$ odo storage delete
Example output:
odo storage delete store -f
$ odo storage delete store -f
Deleted storage store from nodejs-project-ufyy
Please use `odo push` command to delete the storage from the cluster
In the above example, using the -f
flag force deletes the storage without asking user permission.
3.5.9.4. Adding storage to specific container Copy linkLink copied to clipboard!
If your devfile has multiple containers, you can specify which container you want the storage to attach to, using the --container
flag in the odo storage create
command.
The following example is an excerpt from a devfile with multiple containers :
In the example, there are two containers,nodejs1
and nodejs2
. To attach storage to the nodejs2
container, use the following command:
odo storage create --container
$ odo storage create --container
Example output:
odo storage create store --path /data --size 1Gi --container nodejs2
$ odo storage create store --path /data --size 1Gi --container nodejs2
✓ Added storage store to nodejs-testing-xnfg
Please use `odo push` command to make the storage accessible to the component
You can list the storage resources, using the odo storage list
command:
odo storage list
$ odo storage list
Example output:
The component 'nodejs-testing-xnfg' has the following storage attached: NAME SIZE PATH CONTAINER STATE store 1Gi /data nodejs2 Not Pushed
The component 'nodejs-testing-xnfg' has the following storage attached:
NAME SIZE PATH CONTAINER STATE
store 1Gi /data nodejs2 Not Pushed
3.5.10. Common flags Copy linkLink copied to clipboard!
The following flags are available with most odo
commands:
Command | Description |
---|---|
| Set the context directory where the component is defined. |
| Set the project for the component. Defaults to the project defined in the local configuration. If none is available, then current project on the cluster. |
| Set the application of the component. Defaults to the application defined in the local configuration. If none is available, then app. |
|
Set the path to the |
| Use this flag to see the logs. |
| Use this flag to tell the command not to prompt the user for confirmation. |
| Set the verbosity level. See Logging in odo for more information. |
| Output the help for a command. |
Some flags might not be available for some commands. Run the command with the --help
flag to get a list of all the available flags.
3.5.11. JSON output Copy linkLink copied to clipboard!
The odo
commands that output content generally accept a -o json
flag to output this content in JSON format, suitable for other programs to parse this output more easily.
The output structure is similar to Kubernetes resources, with the kind
, apiVersion
, metadata
, spec
, and status
fields.
List commands return a List
resource, containing an items
(or similar) field listing the items of the list, with each item also being similar to Kubernetes resources.
Delete commands return a Status
resource; see the Status Kubernetes resource.
Other commands return a resource associated with the command, for example, Application
, Storage
, URL
, and so on.
The full list of commands currently accepting the -o json
flag is:
Commands | Kind (version) | Kind (version) of list items | Complete content? |
---|---|---|---|
odo application describe | Application (odo.dev/v1alpha1) | n/a | no |
odo application list | List (odo.dev/v1alpha1) | Application (odo.dev/v1alpha1) | ? |
odo catalog list components | List (odo.dev/v1alpha1) | missing | yes |
odo catalog list services | List (odo.dev/v1alpha1) | ClusterServiceVersion (operators.coreos.com/v1alpha1) | ? |
odo catalog describe component | missing | n/a | yes |
odo catalog describe service | CRDDescription (odo.dev/v1alpha1) | n/a | yes |
odo component create | Component (odo.dev/v1alpha1) | n/a | yes |
odo component describe | Component (odo.dev/v1alpha1) | n/a | yes |
odo component list | List (odo.dev/v1alpha1) | Component (odo.dev/v1alpha1) | yes |
odo config view | DevfileConfiguration (odo.dev/v1alpha1) | n/a | yes |
odo debug info | OdoDebugInfo (odo.dev/v1alpha1) | n/a | yes |
odo env view | EnvInfo (odo.dev/v1alpha1) | n/a | yes |
odo preference view | PreferenceList (odo.dev/v1alpha1) | n/a | yes |
odo project create | Project (odo.dev/v1alpha1) | n/a | yes |
odo project delete | Status (v1) | n/a | yes |
odo project get | Project (odo.dev/v1alpha1) | n/a | yes |
odo project list | List (odo.dev/v1alpha1) | Project (odo.dev/v1alpha1) | yes |
odo registry list | List (odo.dev/v1alpha1) | missing | yes |
odo service create | Service | n/a | yes |
odo service describe | Service | n/a | yes |
odo service list | List (odo.dev/v1alpha1) | Service | yes |
odo storage create | Storage (odo.dev/v1alpha1) | n/a | yes |
odo storage delete | Status (v1) | n/a | yes |
odo storage list | List (odo.dev/v1alpha1) | Storage (odo.dev/v1alpha1) | yes |
odo url list | List (odo.dev/v1alpha1) | URL (odo.dev/v1alpha1) | yes |
Chapter 4. Knative CLI for use with OpenShift Serverless Copy linkLink copied to clipboard!
The Knative (kn
) CLI enables simple interaction with Knative components on OpenShift Container Platform.
4.1. Key features Copy linkLink copied to clipboard!
The Knative (kn
) CLI is designed to make serverless computing tasks simple and concise. Key features of the Knative CLI include:
- Deploy serverless applications from the command line.
- Manage features of Knative Serving, such as services, revisions, and traffic-splitting.
- Create and manage Knative Eventing components, such as event sources and triggers.
- Create sink bindings to connect existing Kubernetes applications and Knative services.
-
Extend the Knative CLI with flexible plugin architecture, similar to the
kubectl
CLI. - Configure autoscaling parameters for Knative services.
- Scripted usage, such as waiting for the results of an operation, or deploying custom rollout and rollback strategies.
4.2. Installing the Knative CLI Copy linkLink copied to clipboard!
Chapter 5. Pipelines CLI (tkn) Copy linkLink copied to clipboard!
5.1. Installing tkn Copy linkLink copied to clipboard!
Use the tkn
CLI to manage Red Hat OpenShift Pipelines from a terminal. The following section describes how to install tkn
on different platforms.
You can also find the URL to the latest binaries from the OpenShift Container Platform web console by clicking the ? icon in the upper-right corner and selecting Command Line Tools.
5.1.1. Installing Red Hat OpenShift Pipelines CLI (tkn) on Linux Copy linkLink copied to clipboard!
For Linux distributions, you can download the CLI directly as a tar.gz
archive.
Procedure
Download the relevant CLI.
Unpack the archive:
tar xvzf <file>
$ tar xvzf <file>
Copy to Clipboard Copied! Toggle word wrap Toggle overflow -
Place the
tkn
binary in a directory that is on yourPATH
. To check your
PATH
, run:echo $PATH
$ echo $PATH
Copy to Clipboard Copied! Toggle word wrap Toggle overflow
5.1.2. Installing Red Hat OpenShift Pipelines CLI (tkn) on Linux using an RPM Copy linkLink copied to clipboard!
For Red Hat Enterprise Linux (RHEL) version 8, you can install the Red Hat OpenShift Pipelines CLI (tkn
) as an RPM.
Prerequisites
- You have an active OpenShift Container Platform subscription on your Red Hat account.
- You have root or sudo privileges on your local system.
Procedure
Register with Red Hat Subscription Manager:
subscription-manager register
# subscription-manager register
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Pull the latest subscription data:
subscription-manager refresh
# subscription-manager refresh
Copy to Clipboard Copied! Toggle word wrap Toggle overflow List the available subscriptions:
subscription-manager list --available --matches '*pipelines*'
# subscription-manager list --available --matches '*pipelines*'
Copy to Clipboard Copied! Toggle word wrap Toggle overflow In the output for the previous command, find the pool ID for your OpenShift Container Platform subscription and attach the subscription to the registered system:
subscription-manager attach --pool=<pool_id>
# subscription-manager attach --pool=<pool_id>
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Enable the repositories required by Red Hat OpenShift Pipelines:
Linux (x86_64, amd64)
subscription-manager repos --enable="pipelines-1.5-for-rhel-8-x86_64-rpms"
# subscription-manager repos --enable="pipelines-1.5-for-rhel-8-x86_64-rpms"
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Linux on IBM Z and LinuxONE (s390x)
subscription-manager repos --enable="pipelines-1.5-for-rhel-8-s390x-rpms"
# subscription-manager repos --enable="pipelines-1.5-for-rhel-8-s390x-rpms"
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Linux on IBM Power Systems (ppc64le)
subscription-manager repos --enable="pipelines-1.5-for-rhel-8-ppc64le-rpms"
# subscription-manager repos --enable="pipelines-1.5-for-rhel-8-ppc64le-rpms"
Copy to Clipboard Copied! Toggle word wrap Toggle overflow
Install the
openshift-pipelines-client
package:yum install openshift-pipelines-client
# yum install openshift-pipelines-client
Copy to Clipboard Copied! Toggle word wrap Toggle overflow
After you install the CLI, it is available using the tkn
command:
tkn version
$ tkn version
5.1.3. Installing Red Hat OpenShift Pipelines CLI (tkn) on Windows Copy linkLink copied to clipboard!
For Windows, the tkn
CLI is provided as a zip
archive.
Procedure
- Download the CLI.
- Unzip the archive with a ZIP program.
-
Add the location of your
tkn.exe
file to yourPATH
environment variable. To check your
PATH
, open the command prompt and run the command:path
C:\> path
Copy to Clipboard Copied! Toggle word wrap Toggle overflow
5.1.4. Installing Red Hat OpenShift Pipelines CLI (tkn) on macOS Copy linkLink copied to clipboard!
For macOS, the tkn
CLI is provided as a tar.gz
archive.
Procedure
- Download the CLI.
- Unpack and unzip the archive.
-
Move the
tkn
binary to a directory on your PATH. To check your
PATH
, open a terminal window and run:echo $PATH
$ echo $PATH
Copy to Clipboard Copied! Toggle word wrap Toggle overflow
5.2. Configuring the OpenShift Pipelines tkn CLI Copy linkLink copied to clipboard!
Configure the Red Hat OpenShift Pipelines tkn
CLI to enable tab completion.
5.2.1. Enabling tab completion Copy linkLink copied to clipboard!
After you install the tkn
CLI, you can enable tab completion to automatically complete tkn
commands or suggest options when you press Tab.
Prerequisites
-
You must have the
tkn
CLI tool installed. -
You must have
bash-completion
installed on your local system.
Procedure
The following procedure enables tab completion for Bash.
Save the Bash completion code to a file:
tkn completion bash > tkn_bash_completion
$ tkn completion bash > tkn_bash_completion
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Copy the file to
/etc/bash_completion.d/
:sudo cp tkn_bash_completion /etc/bash_completion.d/
$ sudo cp tkn_bash_completion /etc/bash_completion.d/
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Alternatively, you can 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.
5.3. OpenShift Pipelines tkn reference Copy linkLink copied to clipboard!
This section lists the basic tkn
CLI commands.
5.3.1. Basic syntax Copy linkLink copied to clipboard!
tkn [command or options] [arguments…]
5.3.2. Global options Copy linkLink copied to clipboard!
--help, -h
5.3.3. Utility commands Copy linkLink copied to clipboard!
5.3.3.1. tkn Copy linkLink copied to clipboard!
Parent command for tkn
CLI.
Example: Display all options
tkn
$ tkn
5.3.3.2. completion [shell] Copy linkLink copied to clipboard!
Print shell completion code which must be evaluated to provide interactive completion. Supported shells are bash
and zsh
.
Example: Completion code for bash
shell
tkn completion bash
$ tkn completion bash
5.3.3.3. version Copy linkLink copied to clipboard!
Print version information of the tkn
CLI.
Example: Check the tkn
version
tkn version
$ tkn version
5.3.4. Pipelines management commands Copy linkLink copied to clipboard!
5.3.4.1. pipeline Copy linkLink copied to clipboard!
Manage pipelines.
Example: Display help
tkn pipeline --help
$ tkn pipeline --help
5.3.4.2. pipeline delete Copy linkLink copied to clipboard!
Delete a pipeline.
Example: Delete the mypipeline
pipeline from a namespace
tkn pipeline delete mypipeline -n myspace
$ tkn pipeline delete mypipeline -n myspace
5.3.4.3. pipeline describe Copy linkLink copied to clipboard!
Describe a pipeline.
Example: Describe the mypipeline
pipeline
tkn pipeline describe mypipeline
$ tkn pipeline describe mypipeline
5.3.4.4. pipeline list Copy linkLink copied to clipboard!
Display a list of pipelines.
Example: Display a list of pipelines
tkn pipeline list
$ tkn pipeline list
5.3.4.5. pipeline logs Copy linkLink copied to clipboard!
Display the logs for a specific pipeline.
Example: Stream the live logs for the mypipeline
pipeline
tkn pipeline logs -f mypipeline
$ tkn pipeline logs -f mypipeline
5.3.4.6. pipeline start Copy linkLink copied to clipboard!
Start a pipeline.
Example: Start the mypipeline
pipeline
tkn pipeline start mypipeline
$ tkn pipeline start mypipeline
5.3.5. Pipeline run commands Copy linkLink copied to clipboard!
5.3.5.1. pipelinerun Copy linkLink copied to clipboard!
Manage pipeline runs.
Example: Display help
tkn pipelinerun -h
$ tkn pipelinerun -h
5.3.5.2. pipelinerun cancel Copy linkLink copied to clipboard!
Cancel a pipeline run.
Example: Cancel the mypipelinerun
pipeline run from a namespace
tkn pipelinerun cancel mypipelinerun -n myspace
$ tkn pipelinerun cancel mypipelinerun -n myspace
5.3.5.3. pipelinerun delete Copy linkLink copied to clipboard!
Delete a pipeline run.
Example: Delete pipeline runs from a namespace
tkn pipelinerun delete mypipelinerun1 mypipelinerun2 -n myspace
$ tkn pipelinerun delete mypipelinerun1 mypipelinerun2 -n myspace
Example: Delete all pipeline runs from a namespace, except the five most recently executed pipeline runs
tkn pipelinerun delete -n myspace --keep 5
$ tkn pipelinerun delete -n myspace --keep 5
- 1
- Replace
5
with the number of most recently executed pipeline runs you want to retain.
5.3.5.4. pipelinerun describe Copy linkLink copied to clipboard!
Describe a pipeline run.
Example: Describe the mypipelinerun
pipeline run in a namespace
tkn pipelinerun describe mypipelinerun -n myspace
$ tkn pipelinerun describe mypipelinerun -n myspace
5.3.5.5. pipelinerun list Copy linkLink copied to clipboard!
List pipeline runs.
Example: Display a list of pipeline runs in a namespace
tkn pipelinerun list -n myspace
$ tkn pipelinerun list -n myspace
5.3.5.6. pipelinerun logs Copy linkLink copied to clipboard!
Display the logs of a pipeline run.
Example: Display the logs of the mypipelinerun
pipeline run with all tasks and steps in a namespace
tkn pipelinerun logs mypipelinerun -a -n myspace
$ tkn pipelinerun logs mypipelinerun -a -n myspace
5.3.6. Task management commands Copy linkLink copied to clipboard!
5.3.6.1. task Copy linkLink copied to clipboard!
Manage tasks.
Example: Display help
tkn task -h
$ tkn task -h
5.3.6.2. task delete Copy linkLink copied to clipboard!
Delete a task.
Example: Delete mytask1
and mytask2
tasks from a namespace
tkn task delete mytask1 mytask2 -n myspace
$ tkn task delete mytask1 mytask2 -n myspace
5.3.6.3. task describe Copy linkLink copied to clipboard!
Describe a task.
Example: Describe the mytask
task in a namespace
tkn task describe mytask -n myspace
$ tkn task describe mytask -n myspace
5.3.6.4. task list Copy linkLink copied to clipboard!
List tasks.
Example: List all the tasks in a namespace
tkn task list -n myspace
$ tkn task list -n myspace
5.3.6.5. task logs Copy linkLink copied to clipboard!
Display task logs.
Example: Display logs for the mytaskrun
task run of the mytask
task
tkn task logs mytask mytaskrun -n myspace
$ tkn task logs mytask mytaskrun -n myspace
5.3.6.6. task start Copy linkLink copied to clipboard!
Start a task.
Example: Start the mytask
task in a namespace
tkn task start mytask -s <ServiceAccountName> -n myspace
$ tkn task start mytask -s <ServiceAccountName> -n myspace
5.3.7. Task run commands Copy linkLink copied to clipboard!
5.3.7.1. taskrun Copy linkLink copied to clipboard!
Manage task runs.
Example: Display help
tkn taskrun -h
$ tkn taskrun -h
5.3.7.2. taskrun cancel Copy linkLink copied to clipboard!
Cancel a task run.
Example: Cancel the mytaskrun
task run from a namespace
tkn taskrun cancel mytaskrun -n myspace
$ tkn taskrun cancel mytaskrun -n myspace
5.3.7.3. taskrun delete Copy linkLink copied to clipboard!
Delete a TaskRun.
Example: Delete the mytaskrun1
and mytaskrun2
task runs from a namespace
tkn taskrun delete mytaskrun1 mytaskrun2 -n myspace
$ tkn taskrun delete mytaskrun1 mytaskrun2 -n myspace
Example: Delete all but the five most recently executed task runs from a namespace
tkn taskrun delete -n myspace --keep 5
$ tkn taskrun delete -n myspace --keep 5
- 1
- Replace
5
with the number of most recently executed task runs you want to retain.
5.3.7.4. taskrun describe Copy linkLink copied to clipboard!
Describe a task run.
Example: Describe the mytaskrun
task run in a namespace
tkn taskrun describe mytaskrun -n myspace
$ tkn taskrun describe mytaskrun -n myspace
5.3.7.5. taskrun list Copy linkLink copied to clipboard!
List task runs.
Example: List all the task runs in a namespace
tkn taskrun list -n myspace
$ tkn taskrun list -n myspace
5.3.7.6. taskrun logs Copy linkLink copied to clipboard!
Display task run logs.
Example: Display live logs for the mytaskrun
task run in a namespace
tkn taskrun logs -f mytaskrun -n myspace
$ tkn taskrun logs -f mytaskrun -n myspace
5.3.8. Condition management commands Copy linkLink copied to clipboard!
5.3.8.1. condition Copy linkLink copied to clipboard!
Manage Conditions.
Example: Display help
tkn condition --help
$ tkn condition --help
5.3.8.2. condition delete Copy linkLink copied to clipboard!
Delete a Condition.
Example: Delete the mycondition1
Condition from a namespace
tkn condition delete mycondition1 -n myspace
$ tkn condition delete mycondition1 -n myspace
5.3.8.3. condition describe Copy linkLink copied to clipboard!
Describe a Condition.
Example: Describe the mycondition1
Condition in a namespace
tkn condition describe mycondition1 -n myspace
$ tkn condition describe mycondition1 -n myspace
5.3.8.4. condition list Copy linkLink copied to clipboard!
List Conditions.
Example: List Conditions in a namespace
tkn condition list -n myspace
$ tkn condition list -n myspace
5.3.9. Pipeline Resource management commands Copy linkLink copied to clipboard!
5.3.9.1. resource Copy linkLink copied to clipboard!
Manage Pipeline Resources.
Example: Display help
tkn resource -h
$ tkn resource -h
5.3.9.2. resource create Copy linkLink copied to clipboard!
Create a Pipeline Resource.
Example: Create a Pipeline Resource in a namespace
tkn resource create -n myspace
$ tkn resource create -n myspace
This is an interactive command that asks for input on the name of the Resource, type of the Resource, and the values based on the type of the Resource.
5.3.9.3. resource delete Copy linkLink copied to clipboard!
Delete a Pipeline Resource.
Example: Delete the myresource
Pipeline Resource from a namespace
tkn resource delete myresource -n myspace
$ tkn resource delete myresource -n myspace
5.3.9.4. resource describe Copy linkLink copied to clipboard!
Describe a Pipeline Resource.
Example: Describe the myresource
Pipeline Resource
tkn resource describe myresource -n myspace
$ tkn resource describe myresource -n myspace
5.3.9.5. resource list Copy linkLink copied to clipboard!
List Pipeline Resources.
Example: List all Pipeline Resources in a namespace
tkn resource list -n myspace
$ tkn resource list -n myspace
5.3.10. ClusterTask management commands Copy linkLink copied to clipboard!
5.3.10.1. clustertask Copy linkLink copied to clipboard!
Manage ClusterTasks.
Example: Display help
tkn clustertask --help
$ tkn clustertask --help
5.3.10.2. clustertask delete Copy linkLink copied to clipboard!
Delete a ClusterTask resource in a cluster.
Example: Delete mytask1
and mytask2
ClusterTasks
tkn clustertask delete mytask1 mytask2
$ tkn clustertask delete mytask1 mytask2
5.3.10.3. clustertask describe Copy linkLink copied to clipboard!
Describe a ClusterTask.
Example: Describe the mytask
ClusterTask
tkn clustertask describe mytask1
$ tkn clustertask describe mytask1
5.3.10.4. clustertask list Copy linkLink copied to clipboard!
List ClusterTasks.
Example: List ClusterTasks
tkn clustertask list
$ tkn clustertask list
5.3.10.5. clustertask start Copy linkLink copied to clipboard!
Start ClusterTasks.
Example: Start the mytask
ClusterTask
tkn clustertask start mytask
$ tkn clustertask start mytask
5.3.11. Trigger management commands Copy linkLink copied to clipboard!
5.3.11.1. eventlistener Copy linkLink copied to clipboard!
Manage EventListeners.
Example: Display help
tkn eventlistener -h
$ tkn eventlistener -h
5.3.11.2. eventlistener delete Copy linkLink copied to clipboard!
Delete an EventListener.
Example: Delete mylistener1
and mylistener2
EventListeners in a namespace
tkn eventlistener delete mylistener1 mylistener2 -n myspace
$ tkn eventlistener delete mylistener1 mylistener2 -n myspace
5.3.11.3. eventlistener describe Copy linkLink copied to clipboard!
Describe an EventListener.
Example: Describe the mylistener
EventListener in a namespace
tkn eventlistener describe mylistener -n myspace
$ tkn eventlistener describe mylistener -n myspace
5.3.11.4. eventlistener list Copy linkLink copied to clipboard!
List EventListeners.
Example: List all the EventListeners in a namespace
tkn eventlistener list -n myspace
$ tkn eventlistener list -n myspace
5.3.11.5. eventlistener logs Copy linkLink copied to clipboard!
Display logs of an EventListener.
Example: Display the logs of the mylistener
EventListener in a namespace
tkn eventlistener logs mylistener -n myspace
$ tkn eventlistener logs mylistener -n myspace
5.3.11.6. triggerbinding Copy linkLink copied to clipboard!
Manage TriggerBindings.
Example: Display TriggerBindings help
tkn triggerbinding -h
$ tkn triggerbinding -h
5.3.11.7. triggerbinding delete Copy linkLink copied to clipboard!
Delete a TriggerBinding.
Example: Delete mybinding1
and mybinding2
TriggerBindings in a namespace
tkn triggerbinding delete mybinding1 mybinding2 -n myspace
$ tkn triggerbinding delete mybinding1 mybinding2 -n myspace
5.3.11.8. triggerbinding describe Copy linkLink copied to clipboard!
Describe a TriggerBinding.
Example: Describe the mybinding
TriggerBinding in a namespace
tkn triggerbinding describe mybinding -n myspace
$ tkn triggerbinding describe mybinding -n myspace
5.3.11.9. triggerbinding list Copy linkLink copied to clipboard!
List TriggerBindings.
Example: List all the TriggerBindings in a namespace
tkn triggerbinding list -n myspace
$ tkn triggerbinding list -n myspace
5.3.11.10. triggertemplate Copy linkLink copied to clipboard!
Manage TriggerTemplates.
Example: Display TriggerTemplate help
tkn triggertemplate -h
$ tkn triggertemplate -h
5.3.11.11. triggertemplate delete Copy linkLink copied to clipboard!
Delete a TriggerTemplate.
Example: Delete mytemplate1
and mytemplate2
TriggerTemplates in a namespace
tkn triggertemplate delete mytemplate1 mytemplate2 -n `myspace`
$ tkn triggertemplate delete mytemplate1 mytemplate2 -n `myspace`
5.3.11.12. triggertemplate describe Copy linkLink copied to clipboard!
Describe a TriggerTemplate.
Example: Describe the mytemplate
TriggerTemplate in a namespace
tkn triggertemplate describe mytemplate -n `myspace`
$ tkn triggertemplate describe mytemplate -n `myspace`
5.3.11.13. triggertemplate list Copy linkLink copied to clipboard!
List TriggerTemplates.
Example: List all the TriggerTemplates in a namespace
tkn triggertemplate list -n myspace
$ tkn triggertemplate list -n myspace
5.3.11.14. clustertriggerbinding Copy linkLink copied to clipboard!
Manage ClusterTriggerBindings.
Example: Display ClusterTriggerBindings help
tkn clustertriggerbinding -h
$ tkn clustertriggerbinding -h
5.3.11.15. clustertriggerbinding delete Copy linkLink copied to clipboard!
Delete a ClusterTriggerBinding.
Example: Delete myclusterbinding1
and myclusterbinding2
ClusterTriggerBindings
tkn clustertriggerbinding delete myclusterbinding1 myclusterbinding2
$ tkn clustertriggerbinding delete myclusterbinding1 myclusterbinding2
5.3.11.16. clustertriggerbinding describe Copy linkLink copied to clipboard!
Describe a ClusterTriggerBinding.
Example: Describe the myclusterbinding
ClusterTriggerBinding
tkn clustertriggerbinding describe myclusterbinding
$ tkn clustertriggerbinding describe myclusterbinding
5.3.11.17. clustertriggerbinding list Copy linkLink copied to clipboard!
List ClusterTriggerBindings.
Example: List all ClusterTriggerBindings
tkn clustertriggerbinding list
$ tkn clustertriggerbinding list
5.3.12. Hub interaction commands Copy linkLink copied to clipboard!
Interact with Tekton Hub for resources such as tasks and pipelines.
5.3.12.1. hub Copy linkLink copied to clipboard!
Interact with hub.
Example: Display help
tkn hub -h
$ tkn hub -h
Example: Interact with a hub API server
tkn hub --api-server https://api.hub.tekton.dev
$ tkn hub --api-server https://api.hub.tekton.dev
For each example, to get the corresponding sub-commands and flags, run tkn hub <command> --help
.
5.3.12.2. hub downgrade Copy linkLink copied to clipboard!
Downgrade an installed resource.
Example: Downgrade the mytask
task in the mynamespace
namespace to it’s older version
tkn hub downgrade task mytask --to version -n mynamespace
$ tkn hub downgrade task mytask --to version -n mynamespace
5.3.12.3. hub get Copy linkLink copied to clipboard!
Get a resource manifest by its name, kind, catalog, and version.
Example: Get the manifest for a specific version of the myresource
pipeline or task from the tekton
catalog
tkn hub get [pipeline | task] myresource --from tekton --version version
$ tkn hub get [pipeline | task] myresource --from tekton --version version
5.3.12.4. hub info Copy linkLink copied to clipboard!
Display information about a resource by its name, kind, catalog, and version.
Example: Display information about a specific version of the mytask
task from the tekton
catalog
tkn hub info task mytask --from tekton --version version
$ tkn hub info task mytask --from tekton --version version
5.3.12.5. hub install Copy linkLink copied to clipboard!
Install a resource from a catalog by its kind, name, and version.
Example: Install a specific version of the mytask
task from the tekton
catalog in the mynamespace
namespace
tkn hub install task mytask --from tekton --version version -n mynamespace
$ tkn hub install task mytask --from tekton --version version -n mynamespace
5.3.12.6. hub reinstall Copy linkLink copied to clipboard!
Reinstall a resource by its kind and name.
Example: Reinstall a specific version of the mytask
task from the tekton
catalog in the mynamespace
namespace
tkn hub reinstall task mytask --from tekton --version version -n mynamespace
$ tkn hub reinstall task mytask --from tekton --version version -n mynamespace
5.3.12.7. hub search Copy linkLink copied to clipboard!
Search a resource by a combination of name, kind, and tags.
Example: Search a resource with a tag cli
tkn hub search --tags cli
$ tkn hub search --tags cli
5.3.12.8. hub upgrade Copy linkLink copied to clipboard!
Upgrade an installed resource.
Example: Upgrade the installed mytask
task in the mynamespace
namespace to a new version
tkn hub upgrade task mytask --to version -n mynamespace
$ tkn hub upgrade task mytask --to version -n mynamespace
Chapter 6. opm CLI Copy linkLink copied to clipboard!
6.1. About opm Copy linkLink copied to clipboard!
The opm
CLI tool is provided by the Operator Framework for use with the Operator bundle format. This tool allows you to create and maintain catalogs of Operators from a list of bundles, called an index, that are similar to software repositories. The result is a container image, called an index image, which can be stored in a container registry and then installed on a cluster.
An index contains a database of pointers to Operator manifest content that can be queried through an included API that is served when the container image is run. On OpenShift Container Platform, Operator Lifecycle Manager (OLM) can use the index image as a catalog by referencing it in a CatalogSource
object, which polls the image at regular intervals to enable frequent updates to installed Operators on the cluster.
Additional resources
- See Operator Framework packaging formats for more information about the bundle format.
- To create a bundle image using the Operator SDK, see Working with bundle images.
6.2. Installing opm Copy linkLink copied to clipboard!
You can install the opm
CLI tool on your Linux, macOS, or Windows workstation.
Prerequisites
For Linux, you must provide the following packages. RHEL 8 meets these requirements:
-
podman
version 1.9.3+ (version 2.0+ recommended) -
glibc
version 2.28+
-
Procedure
- Navigate to the OpenShift mirror site and download the latest version of the tarball that matches your operating system.
Unpack the archive.
For Linux or macOS:
tar xvf <file>
$ tar xvf <file>
Copy to Clipboard Copied! Toggle word wrap Toggle overflow - For Windows, unzip the archive with a ZIP program.
Place the file anywhere in your
PATH
.For Linux or macOS:
Check your
PATH
:echo $PATH
$ echo $PATH
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Move the file. For example:
sudo mv ./opm /usr/local/bin/
$ sudo mv ./opm /usr/local/bin/
Copy to Clipboard Copied! Toggle word wrap Toggle overflow
For Windows:
Check your
PATH
:path
C:\> path
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Move the file:
move opm.exe <directory>
C:\> move opm.exe <directory>
Copy to Clipboard Copied! Toggle word wrap Toggle overflow
Verification
After you install the
opm
CLI, verify that it is available:opm version
$ opm version
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Example output
Version: version.Version{OpmVersion:"v1.15.4-2-g6183dbb3", GitCommit:"6183dbb3567397e759f25752011834f86f47a3ea", BuildDate:"2021-02-13T04:16:08Z", GoOs:"linux", GoArch:"amd64"}
Version: version.Version{OpmVersion:"v1.15.4-2-g6183dbb3", GitCommit:"6183dbb3567397e759f25752011834f86f47a3ea", BuildDate:"2021-02-13T04:16:08Z", GoOs:"linux", GoArch:"amd64"}
Copy to Clipboard Copied! Toggle word wrap Toggle overflow
Chapter 7. Operator SDK Copy linkLink copied to clipboard!
7.1. Installing the Operator SDK CLI Copy linkLink copied to clipboard!
The Operator SDK provides a command-line interface (CLI) tool that Operator developers can use to build, test, and deploy an Operator. You can install the Operator SDK CLI on your workstation so that you are prepared to start authoring your own Operators.
See Developing Operators for full documentation on the Operator SDK.
OpenShift Container Platform 4.8 and later supports Operator SDK v1.8.0.
7.1.1. Installing the Operator SDK CLI Copy linkLink copied to clipboard!
You can install the OpenShift SDK CLI tool on Linux.
Prerequisites
- Go v1.16+
-
docker
v17.03+,podman
v1.9.3+, orbuildah
v1.7+
Procedure
- Navigate to the OpenShift mirror site.
-
From the
4.8.4
directory, download the latest version of the tarball for Linux. Unpack the archive:
tar xvf operator-sdk-v1.8.0-ocp-linux-x86_64.tar.gz
$ tar xvf operator-sdk-v1.8.0-ocp-linux-x86_64.tar.gz
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Make the file executable:
chmod +x operator-sdk
$ chmod +x operator-sdk
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Move the extracted
operator-sdk
binary to a directory that is on yourPATH
.TipTo check your
PATH
:echo $PATH
$ echo $PATH
Copy to Clipboard Copied! Toggle word wrap Toggle overflow sudo mv ./operator-sdk /usr/local/bin/operator-sdk
$ sudo mv ./operator-sdk /usr/local/bin/operator-sdk
Copy to Clipboard Copied! Toggle word wrap Toggle overflow
Verification
After you install the Operator SDK CLI, verify that it is available:
operator-sdk version
$ operator-sdk version
Copy to Clipboard Copied! Toggle word wrap Toggle overflow Example output
operator-sdk version: "v1.8.0-ocp", ...
operator-sdk version: "v1.8.0-ocp", ...
Copy to Clipboard Copied! Toggle word wrap Toggle overflow
7.2. Operator SDK CLI reference Copy linkLink copied to clipboard!
The Operator SDK command-line interface (CLI) is a development kit designed to make writing Operators easier.
Operator SDK CLI syntax
operator-sdk <command> [<subcommand>] [<argument>] [<flags>]
$ operator-sdk <command> [<subcommand>] [<argument>] [<flags>]
Operator authors with cluster administrator access to a Kubernetes-based cluster (such as OpenShift Container Platform) can use the Operator SDK CLI to develop their own Operators based on Go, Ansible, or Helm. Kubebuilder is embedded into the Operator SDK as the scaffolding solution for Go-based Operators, which means existing Kubebuilder projects can be used as is with the Operator SDK and continue to work.
See Developing Operators for full documentation on the Operator SDK.
7.2.1. bundle Copy linkLink copied to clipboard!
The operator-sdk bundle
command manages Operator bundle metadata.
7.2.1.1. validate Copy linkLink copied to clipboard!
The bundle validate
subcommand validates an Operator bundle.
Flag | Description |
---|---|
|
Help output for the |
|
Tool to pull and unpack bundle images. Only used when validating a bundle image. Available options are |
| List all optional validators available. When set, no validators are run. |
|
Label selector to select optional validators to run. When run with the |
7.2.2. cleanup Copy linkLink copied to clipboard!
The operator-sdk cleanup
command destroys and removes resources that were created for an Operator that was deployed with the run
command.
Flag | Description |
---|---|
|
Help output for the |
|
Path to the |
| If present, namespace in which to run the CLI request. |
|
Time to wait for the command to complete before failing. The default value is |
7.2.3. completion Copy linkLink copied to clipboard!
The operator-sdk completion
command generates shell completions to make issuing CLI commands quicker and easier.
Subcommand | Description |
---|---|
| Generate bash completions. |
| Generate zsh completions. |
Flag | Description |
---|---|
| Usage help output. |
For example:
operator-sdk completion bash
$ operator-sdk completion bash
Example output
bash completion for operator-sdk -*- shell-script -*- ex: ts=4 sw=4 et filetype=sh
# bash completion for operator-sdk -*- shell-script -*-
...
# ex: ts=4 sw=4 et filetype=sh
7.2.4. create Copy linkLink copied to clipboard!
The operator-sdk create
command is used to create, or scaffold, a Kubernetes API.
7.2.4.1. api Copy linkLink copied to clipboard!
The create api
subcommand scaffolds a Kubernetes API. The subcommand must be run in a project that was initialized with the init
command.
Flag | Description |
---|---|
|
Help output for the |
7.2.5. generate Copy linkLink copied to clipboard!
The operator-sdk generate
command invokes a specific generator to generate code or manifests.
7.2.5.1. bundle Copy linkLink copied to clipboard!
The generate bundle
subcommand generates a set of bundle manifests, metadata, and a bundle.Dockerfile
file for your Operator project.
Typically, you run the generate kustomize manifests
subcommand first to generate the input Kustomize bases that are used by the generate bundle
subcommand. However, you can use the make bundle
command in an initialized project to automate running these commands in sequence.
Flag | Description |
---|---|
|
Comma-separated list of channels to which the bundle belongs. The default value is |
|
Root directory for |
| The default channel for the bundle. |
|
Root directory for Operator manifests, such as deployments and RBAC. This directory is different from the directory passed to the |
|
Help for |
|
Directory from which to read an existing bundle. This directory is the parent of your bundle |
|
Directory containing Kustomize bases and a |
| Generate bundle manifests. |
| Generate bundle metadata and Dockerfile. |
| Directory to write the bundle to. |
|
Overwrite the bundle metadata and Dockerfile if they exist. The default value is |
| Package name for the bundle. |
| Run in quiet mode. |
| Write bundle manifest to standard out. |
| Semantic version of the Operator in the generated bundle. Set only when creating a new bundle or upgrading the Operator. |
7.2.5.2. kustomize Copy linkLink copied to clipboard!
The generate kustomize
subcommand contains subcommands that generate Kustomize data for the Operator.
7.2.5.2.1. manifests Copy linkLink copied to clipboard!
The generate kustomize manifests
subcommand generates or regenerates Kustomize bases and a kustomization.yaml
file in the config/manifests
directory, which are used to build bundle manifests by other Operator SDK commands. This command interactively asks for UI metadata, an important component of manifest bases, by default unless a base already exists or you set the --interactive=false
flag.
Flag | Description |
---|---|
| Root directory for API type definitions. |
|
Help for |
| Directory containing existing Kustomize files. |
|
When set to |
| Directory where to write Kustomize files. |
| Package name. |
| Run in quiet mode. |
7.2.6. init Copy linkLink copied to clipboard!
The operator-sdk init
command initializes an Operator project and generates, or scaffolds, a default project directory layout for the given plugin.
This command writes the following files:
- Boilerplate license file
-
PROJECT
file with the domain and repository -
Makefile
to build the project -
go.mod
file with project dependencies -
kustomization.yaml
file for customizing manifests - Patch file for customizing images for manager manifests
- Patch file for enabling Prometheus metrics
-
main.go
file to run
Flag | Description |
---|---|
|
Help output for the |
|
Name and optionally version of the plugin to initialize the project with. Available plugins are |
|
Project version. Available values are |
7.2.7. run Copy linkLink copied to clipboard!
The operator-sdk run
command provides options that can launch the Operator in various environments.
7.2.7.1. bundle Copy linkLink copied to clipboard!
The run bundle
subcommand deploys an Operator in the bundle format with Operator Lifecycle Manager (OLM).
Flag | Description |
---|---|
|
Index image in which to inject a bundle. The default image is |
|
Install mode supported by the cluster service version (CSV) of the Operator, for example |
|
Install timeout. The default value is |
|
Path to the |
| If present, namespace in which to run the CLI request. |
|
Help output for the |
7.2.7.2. bundle-upgrade Copy linkLink copied to clipboard!
The run bundle-upgrade
subcommand upgrades an Operator that was previously installed in the bundle format with Operator Lifecycle Manager (OLM).
Flag | Description |
---|---|
|
Upgrade timeout. The default value is |
|
Path to the |
| If present, namespace in which to run the CLI request. |
|
Help output for the |
7.2.8. scorecard Copy linkLink copied to clipboard!
The operator-sdk scorecard
command runs the scorecard tool to validate an Operator bundle and provide suggestions for improvements. The command takes one argument, either a bundle image or directory containing manifests and metadata. If the argument holds an image tag, the image must be present remotely.
Flag | Description |
---|---|
|
Path to scorecard configuration file. The default path is |
|
Help output for the |
|
Path to |
| List which tests are available to run. |
| Namespace in which to run the test images. |
|
Output format for results. Available values are |
| Label selector to determine which tests are run. |
|
Service account to use for tests. The default value is |
| Disable resource cleanup after tests are run. |
|
Seconds to wait for tests to complete, for example |
Legal Notice
Copy linkLink copied to clipboard!
Copyright © 2025 Red Hat
OpenShift documentation is licensed under the Apache License 2.0 (https://www.apache.org/licenses/LICENSE-2.0).
Modified versions must remove all Red Hat trademarks.
Portions adapted from https://github.com/kubernetes-incubator/service-catalog/ with modifications by Red Hat.
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