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4.7. Installing the Knative CLI (kn)

注意

kn does not have its own login mechanism. To log in to the cluster, you must install the oc CLI and use oc login.

Installation options for the oc CLI will vary depending on your operating system.

For more information on installing the oc CLI for your operating system and logging in with oc, see the CLI getting started documentation.

Once the OpenShift Serverless Operator is installed, you will see a link to download the kn CLI for Linux, macOS and Windows from the Command Line Tools page in the OpenShift Container Platform web console.

You can access the Command Line Tools page by clicking the question circle icon in the top right corner of the web console and selecting Command Line Tools in the drop down menu.

Procedure

  1. Download the kn CLI from the Command Line Tools page.

  2. Unpack the archive: 

    $ tar -xf <file>
    Copy to Clipboard Toggle word wrap
  3. Move the kn binary to a directory on your PATH.

  4. To check your path, run: 

    $ echo $PATH
    Copy to Clipboard Toggle word wrap
    注意

    If you do not use RHEL or Fedora, ensure that libc is installed in a directory on your library path. If libc is not available, you might see the following error when you run CLI commands: 

    $ kn: No such file or directory
    Copy to Clipboard Toggle word wrap

4.7.2. Installing the kn CLI for Linux using an RPM
复制链接

For Red Hat Enterprise Linux (RHEL), you can install kn as an RPM if you have an active OpenShift Container Platform subscription on your Red Hat account.

Procedure

  • Use the following command to install kn: 
# subscription-manager register
# subscription-manager refresh
# subscription-manager attach --pool=<pool_id>
1 

# subscription-manager repos --enable="openshift-serverless-1-for-rhel-8-x86_64-rpms"
# yum install openshift-serverless-clients
Copy to Clipboard Toggle word wrap
1
Pool ID for an active OpenShift Container Platform subscription

4.7.3. Installing the kn CLI for Linux
复制链接

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

Procedure

  1. Download the CLI.

  2. Unpack the archive: 

    $ tar -xf <file>
    Copy to Clipboard Toggle word wrap
  3. Move the kn binary to a directory on your PATH.

  4. To check your path, run: 

    $ echo $PATH
    Copy to Clipboard Toggle word wrap
    注意

    If you do not use RHEL or Fedora, ensure that libc is installed in a directory on your library path. If libc is not available, you might see the following error when you run CLI commands: 

    $ kn: No such file or directory
    Copy to Clipboard Toggle word wrap

4.7.4. Installing the kn CLI for macOS
复制链接

kn for macOS is provided as a tar.gz archive.

Procedure

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

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

    $ echo $PATH
    Copy to Clipboard Toggle word wrap

4.7.5. Installing the kn CLI for Windows
复制链接

The CLI for Windows is provided as a zip archive.

Procedure

  1. Download the CLI.
  2. Unzip the archive with a ZIP program.
  3. Move the kn binary to a directory on your PATH.

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

    C:\> path
    Copy to Clipboard Toggle word wrap
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