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Chapter 5. Pipelines CLI (tkn)

5.1. Installing tkn

Use the tkn CLI to manage 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 OpenShift Pipelines CLI (tkn) on Linux

For Linux distributions, you can download the CLI directly as a tar.gz archive.

Procedure

  1. Download the CLI.

  2. Unpack the archive: 

    $ tar xvzf <file>
  3. Place the tkn binary in a directory that is on your PATH.

  4. To check your PATH, run: 

    $ echo $PATH

5.1.2. Installing OpenShift Pipelines CLI (tkn) on Linux using an RPM

For Red Hat Enterprise Linux (RHEL) version 8, you can install the 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

  1. Register with Red Hat Subscription Manager: 

    # subscription-manager register

  2. Pull the latest subscription data: 

    # subscription-manager refresh

  3. List the available subscriptions: 

    # subscription-manager list --available --matches '*pipelines*'

  4. 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>

  5. Enable the repositories required by OpenShift Pipelines: 

    # subscription-manager repos --enable="pipelines-1.0-for-rhel-8-x86_64-rpms"

  6. Install the openshift-pipelines-client package: 

    # yum install openshift-pipelines-client

After you install the CLI, it is available using the tkn command: 

$ tkn version

5.1.3. Installing OpenShift Pipelines CLI (tkn) on Windows

For Windows, the tkn CLI is provided as a zip archive.

Procedure

  1. Download the CLI.
  2. Unzip the archive with a ZIP program.
  3. Add the location of your tkn.exe file to your PATH environment variable.

  4. To check your PATH, open the command prompt and run the command: 

    C:\> path

5.1.4. Installing OpenShift Pipelines CLI (tkn) on macOS

For macOS, the tkn CLI is provided as a tar.gz archive.

Procedure

  1. Download the CLI.
  2. Unpack and unzip the archive.
  3. Move the tkn binary to a directory on your PATH.

  4. To check your PATH, open a terminal window and run: 

    $ echo $PATH

5.2. Configuring the OpenShift Pipelines tkn CLI

Configure the OpenShift Pipelines tkn CLI to enable tab completion.

5.2.1. Enabling tab completion

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.

  1. Save the Bash completion code to a file: 

    $ tkn completion bash > tkn_bash_completion

  2. Copy the file to /etc/bash_completion.d/: 

    $ sudo cp tkn_bash_completion /etc/bash_completion.d/

    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

This section lists the basic tkn CLI commands.

5.3.1. Basic syntax

tkn [command or options] [arguments…​]

5.3.2. Global options

--help, -h

5.3.3. Utility commands

5.3.3.1. tkn

Parent command for tkn CLI.

Example: Display all options

$ tkn

5.3.3.2. completion [shell]

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

5.3.3.3. version

Print version information of the tkn CLI.

Example: Check the tkn version

$ tkn version

5.3.4. Pipelines management commands

5.3.4.1. pipeline

Manage Pipelines.

Example: Display help

$ tkn pipeline --help

5.3.4.2. pipeline create

Create a Pipeline.

Example: Create a Pipeline defined by the mypipeline.yaml file in a namespace

$ tkn pipeline create -f mypipeline.yaml -n myspace

5.3.4.3. pipeline delete

Delete a Pipeline.

Example: Delete the mypipeline Pipeline from a namespace

$ tkn pipeline delete mypipeline -n myspace

5.3.4.4. pipeline describe

Describe a Pipeline.

Example: Describe mypipeline Pipeline

$ tkn pipeline describe mypipeline

5.3.4.5. pipeline list

List Pipelines.

Example: Display a list of Pipelines

$ tkn pipeline list

5.3.4.6. pipeline logs

Display Pipeline logs for a specific Pipeline.

Example: Stream live logs for the mypipeline Pipeline

$ tkn pipeline logs -f mypipeline

5.3.4.7. pipeline start

Start a Pipeline.

Example: Start mypipeline Pipeline

$ tkn pipeline start mypipeline

5.3.5. PipelineRun commands

5.3.5.1. pipelinerun

Manage PipelineRuns.

Example: Display help

$ tkn pipelinerun -h

5.3.5.2. pipelinerun cancel

Cancel a PipelineRun.

Example: Cancel the mypipelinerun PipelineRun from a namespace

$ tkn pipelinerun cancel mypipelinerun -n myspace

5.3.5.3. pipelinerun delete

Delete a PipelineRun.

Example: Delete PipelineRuns from a namespace

$ tkn pipelinerun delete mypipelinerun1 mypipelinerun2 -n myspace

5.3.5.4. pipelinerun describe

Describe a PipelineRun.

Example: Describe the mypipelinerun PipelineRun in a namespace

tkn pipelinerun describe mypipelinerun -n myspace

5.3.5.5. pipelinerun list

List PipelineRuns.

Example: Display a list of PipelineRuns in a namespace

$ tkn pipelinerun list -n myspace

5.3.5.6. pipelinerun logs

Display the logs of a PipelineRun.

Example: Display the logs of the mypipelinerun PipelineRun with all tasks and steps in a namespace

$ tkn pipelinerun logs mypipelinerun -a -n myspace

5.3.6. Task management commands

5.3.6.1. task

Manage Tasks.

Example: Display help

$ tkn task -h

5.3.6.2. task create

Create a Task.

Example: Create a Task defined by the mytask.yaml file in a namespace

$ tkn task create -f mytask.yaml -n myspace

5.3.6.3. task delete

Delete a Task.

Example: Delete mytask1 and mytask2 Tasks from a namespace

$ tkn task delete mytask1 mytask2 -n myspace

5.3.6.4. task describe

Describe a Task.

Example: Describe the mytask Task in a namespace

$ tkn task describe mytask -n myspace

5.3.6.5. task list

List Tasks.

Example: List all the Tasks in a namespace

$ tkn task list -n myspace

5.3.6.6. task logs

Display Task logs.

Example: Display logs for the mytaskrun TaskRun of the mytask Task

$ tkn task logs mytask mytaskrun -n myspace

5.3.6.7. task start

Start a Task.

Example: Start the mytask Task in a namespace

$ tkn task start mytask -s <ServiceAccountName> -n myspace

5.3.7. TaskRun commands

5.3.7.1. taskrun

Manage TaskRuns.

Example: Display help

$ tkn taskrun -h

5.3.7.2. taskrun cancel

Cancel a TaskRun.

Example: Cancel the mytaskrun TaskRun from a namespace

$ tkn taskrun cancel mytaskrun -n myspace

5.3.7.3. taskrun delete

Delete a TaskRun.

Example: Delete mytaskrun1 and mytaskrun2 TaskRuns from a namespace

$ tkn taskrun delete mytaskrun1 mytaskrun2 -n myspace

5.3.7.4. taskrun describe

Describe a TaskRun.

Example: Describe the mytaskrun TaskRun in a namespace

$ tkn taskrun describe mytaskrun -n myspace

5.3.7.5. taskrun list

List TaskRuns.

Example: List all TaskRuns in a namespace

$ tkn taskrun list -n myspace

5.3.7.6. taskrun logs

Display TaskRun logs.

Example: Display live logs for the mytaskrun TaskRun in a namespace

$ tkn taskrun logs -f mytaskrun -n myspace

5.3.8. Condition management commands

5.3.8.1. condition

Manage Conditions.

Example: Display help

$ tkn condition --help

5.3.8.2. condition delete

Delete a Condition.

Example: Delete the mycondition1 Condition from a namespace

$ tkn condition delete mycondition1 -n myspace

5.3.8.3. condition describe

Describe a Condition.

Example: Describe the mycondition1 Condition in a namespace

$ tkn condition describe mycondition1 -n myspace

5.3.8.4. condition list

List Conditions.

Example: List Conditions in a namespace

$ tkn condition list -n myspace

5.3.9. Pipeline Resource management commands

5.3.9.1. resource

Manage Pipeline Resources.

Example: Display help

$ tkn resource -h

5.3.9.2. resource create

Create a Pipeline Resource.

Example: Create Pipeline Resource defined by the myresource.yaml file in a namespace

$ tkn resource create -f myresource.yaml -n myspace

5.3.9.3. resource delete

Delete a Pipeline Resource.

Example: Delete the myresource Pipeline Resource from a namespace

$ tkn resource delete myresource -n myspace

5.3.9.4. resource describe

Describe a Pipeline Resource.

Example: Describe the myresource Pipeline Resource

$ tkn resource describe myresource -n myspace

5.3.9.5. resource list

List Pipeline Resources.

Example: List all Pipeline Resources in a namespace

$ tkn resource list -n myspace

5.3.10. ClusterTask management commands

5.3.10.1. clustertask

Manage ClusterTasks.

Example: Display help

$ tkn clustertask --help

5.3.10.2. clustertask delete

Delete a ClusterTask resource in a cluster.

Example: Delete mytask1 and mytask2 ClusterTasks

$ tkn clustertask delete mytask1 mytask2

5.3.10.3. clustertask describe

Describe a ClusterTask.

Example: Describe the mytask ClusterTask

$ tkn clustertask describe mytask1

5.3.10.4. clustertask list

List ClusterTasks.

Example: List ClusterTasks

$ tkn clustertask list

5.3.10.5. clustertask start

Start ClusterTasks.

Example: Start the mytask ClusterTask

$ tkn clustertask start mytask

5.3.11. Trigger management commands

5.3.11.1. eventlistener

Manage EventListeners.

Example: Display help

$ tkn eventlistener -h

5.3.11.2. eventlistener delete

Delete an EventListener.

Example: Delete mylistener1 and mylistener2 EventListeners in a namespace

$ tkn eventlistener delete mylistener1 mylistener2 -n myspace

5.3.11.3. eventlistener describe

Describe an EventListener.

Example: Describe the mylistener EventListener in a namespace

$ tkn eventlistener describe mylistener -n myspace

5.3.11.4. eventlistener list

List EventListeners.

Example: List all the EventListeners in a namespace

$ tkn eventlistener list -n myspace

5.3.11.5. triggerbinding

Manage TriggerBindings.

Example: Display TriggerBindings help

$ tkn triggerbinding -h

5.3.11.6. triggerbinding delete

Delete a TriggerBinding.

Example: Delete mybinding1 and mybinding2 TriggerBindings in a namespace

$ tkn triggerbinding delete mybinding1 mybinding2 -n myspace

5.3.11.7. triggerbinding describe

Describe a TriggerBinding.

Example: Describe the mybinding TriggerBinding in a namespace

$ tkn triggerbinding describe mybinding -n myspace

5.3.11.8. triggerbinding list

List TriggerBindings.

Example: List all the TriggerBindings in a namespace

$ tkn triggerbinding list -n myspace

5.3.11.9. triggertemplate

Manage TriggerTemplates.

Example: Display TriggerTemplate help

$ tkn triggertemplate -h

5.3.11.10. triggertemplate delete

Delete a TriggerTemplate.

Example: Delete mytemplate1 and mytemplate2 TriggerTemplates in a namespace

$ tkn triggertemplate delete mytemplate1 mytemplate2 -n `myspace`

5.3.11.11. triggertemplate describe

Describe a TriggerTemplate.

Example: Describe the mytemplate TriggerTemplate in a namespace

$ tkn triggertemplate describe mytemplate -n `myspace`

5.3.11.12. triggertemplate list

List TriggerTemplates.

Example: List all the TriggerTemplates in a namespace

$ tkn triggertemplate list -n myspace

5.3.11.13. clustertriggerbinding

Manage ClusterTriggerBindings.

Example: Display ClusterTriggerBindings help

$ tkn clustertriggerbinding -h

5.3.11.14. clustertriggerbinding delete

Delete a ClusterTriggerBinding.

Example: Delete myclusterbinding1 and myclusterbinding2 ClusterTriggerBindings

$ tkn clustertriggerbinding delete myclusterbinding1 myclusterbinding2

5.3.11.15. clustertriggerbinding describe

Describe a ClusterTriggerBinding.

Example: Describe the myclusterbinding ClusterTriggerBinding

$ tkn clustertriggerbinding describe myclusterbinding

5.3.11.16. clustertriggerbinding list

List ClusterTriggerBindings.

Example: List all ClusterTriggerBindings

$ tkn clustertriggerbinding list

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