2장. OpenShift CLI (oc)

Procedure

1. Navigate to the Download OpenShift Container Platform page on the Red Hat Customer Portal.
2. Select the architecture from the Product Variant list.
3. Select the appropriate version from the Version list.
4. Click Download Now next to the OpenShift v4.21 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

Procedure

1. Navigate to the Download OpenShift Container Platform page on the Red Hat Customer Portal.
2. Select the appropriate version from the Version list.
3. Click Download Now next to the OpenShift v4.21 Windows Client entry and save the file.
4. Extract the archive with a ZIP program.

5. Move the oc binary to a directory that is on your PATH variable.

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

   C:\> path

Procedure

1. Navigate to the Download OpenShift Container Platform page on the Red Hat Customer Portal.
2. Select the architecture from the Product Variant list.
3. Select the appropriate version from the Version list.

4. Click Download Now next to the OpenShift v4.21 macOS Clients entry and save the file.

   참고

   For macOS arm64, choose the OpenShift v4.21 macOS arm64 Client entry.

5. Unpack and unzip the archive.

6. Move the oc binary to a directory on your PATH variable.

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

   $ echo $PATH

Procedure

1. Enter the oc login command and pass in a user name:

   $ oc login -u user1

2. When prompted, enter the required information:

   Example output

   Server [https://localhost:8443]: https://openshift.example.com:6443 

   1

   
   The server uses a certificate signed by an unknown authority.
   You can bypass the certificate check, but any data you send to the server could be intercepted by others.
   Use insecure connections? (y/n): y 

   2

   
   
   Authentication required for https://openshift.example.com:6443 (openshift)
   Username: user1
   Password: 

   3

   
   Login successful.
   
   You don't have any projects. You can try to create a new project, by running
   
       oc new-project <projectname>
   
   Welcome! See 'oc help' to get started.

   1

   Enter the OpenShift Container Platform server URL.

   2

   Enter whether to use insecure connections.

   3

   Enter the user’s password.

Procedure

1. Enter the oc login command with the --web flag:

   $ oc login <cluster_url> --web 

   1

   1

   Optionally, you can specify the server URL and callback port. For example, oc login <cluster_url> --web --callback-port 8280 localhost:8443.

2. The web browser opens automatically. If it does not, click the link in the command output. If you do not specify the OpenShift Container Platform server oc tries to open the web console of the cluster specified in the current oc configuration file. If no oc configuration exists, oc prompts interactively for the server URL.

   Example output

   Opening login URL in the default browser: https://openshift.example.com
   Opening in existing browser session.

3. If more than one identity provider is available, select your choice from the options provided.
4. Enter your username and password into the corresponding browser fields. After you are logged in, the browser displays the text access token received successfully; please return to your terminal.

5. Check the CLI for a login confirmation.

   Example output

   Login successful.
   
   You don't have any projects. You can try to create a new project, by running
   
       oc new-project <projectname>