第2章 Getting started with the OpenShift CLI


To use the OpenShift CLI (oc) tool, you must download and install it separately from your MicroShift installation. You can install oc by downloading the binary or by using Homebrew.

2.1. Installing the OpenShift CLI

You can install the OpenShift CLI (oc) to interact with Red Hat build of MicroShift from a command-line interface. You can install oc on Linux, Windows, or macOS.

重要

If you installed an earlier version of oc, you cannot use it to complete all of the commands in Red Hat build of MicroShift 4.17. 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.

注記

Red Hat build of MicroShift version numbering matches OpenShift Container Platform version numbering. Use the oc binary that matches your MicroShift version and has the appropriate RHEL compatibility.

Procedure

  1. Navigate to the OpenShift Container Platform downloads page on the Red Hat Customer Portal.
  2. Select the architecture from the Product Variant drop-down list.
  3. Select the appropriate version from the Version drop-down list.
  4. Click Download Now next to the OpenShift v4.17 Linux Clients entry and save the file.
  5. Unpack the archive:

    $ tar xvf <file>
  6. Place the oc binary in a directory that is on your PATH.

    To check your PATH, execute the following command:

    $ echo $PATH

Verification

  • After you install the OpenShift CLI, it is available using the 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.

注記

Red Hat build of MicroShift version numbering matches OpenShift Container Platform version numbering. Use the oc binary that matches your MicroShift version and has the appropriate RHEL compatibility.

Procedure

  1. Navigate to the OpenShift Container Platform downloads page on the Red Hat Customer Portal.
  2. Select the appropriate version from the Version drop-down list.
  3. Click Download Now next to the OpenShift v4.17 Windows Client entry and save the file.
  4. Unzip the archive with a ZIP program.
  5. Move the oc binary to a directory that is on your PATH.

    To check your PATH, open the command prompt and execute the following command:

    C:\> path

Verification

  • After you install the OpenShift CLI, it is available using the oc command:

    C:\> oc <command>

Installing the OpenShift CLI on macOS

You can install the OpenShift CLI (oc) binary on macOS by using the following procedure.

注記

Red Hat build of MicroShift version numbering matches OpenShift Container Platform version numbering. Use the oc binary that matches your MicroShift version and has the appropriate RHEL compatibility.

Procedure

  1. Navigate to the OpenShift Container Platform downloads page on the Red Hat Customer Portal.
  2. Select the appropriate version from the Version drop-down list.
  3. Click Download Now next to the OpenShift v4.17 macOS Clients entry and save the file.
  4. Unpack and unzip the archive.
  5. Move the oc binary to a directory on your PATH.

    To check your PATH, open a terminal and execute the following command:

    $ echo $PATH

Verification

  • Verify your installation by using an oc command:

    $ oc <command>
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