Chapter 2. Ensuring the availability of image streams and the image registry

Procedure

1. Determine whether Red Hat OpenShift Container Platform is configured with the user name and password for Red Hat registry access. For details about the required configuration, see Configuring a Registry Location. If you are using an OpenShift Online subscription, it is configured for Red Hat registry access.

2. If Red Hat OpenShift Container Platform is configured with the user name and password for Red Hat registry access, enter the following commands:

   $ oc get imagestreamtag -n openshift | grep rhdm74-decisioncentral-openshift
   $ oc get imagestreamtag -n openshift | grep rhdm74-kieserver-openshift

   If the outputs of both commands are not empty, the required image streams are available in the openshift namespace and no further action is required.

3. If the output of one or both of the commands is empty or if OpenShift is not configured with the user name and password for Red Hat registry access, complete the following steps:

   1. Ensure you are logged in to OpenShift with the oc command and that your project is active.
   2. Complete the steps documented in Registry Service Accounts for Shared Environments. You must log in to the Red Hat Customer Portal to access the document and to complete the steps to create a registry service account.
   3. Select the OpenShift Secret tab and click the link under Download secret to download the YAML secret file.
   4. View the downloaded file and note the name that is listed in the name: entry.

   5. Enter the following commands:

      oc create -f <file_name>.yaml
      oc secrets link default <secret_name> --for=pull
      oc secrets link builder <secret_name> --for=pull

      Replace <file_name> with the name of the downloaded file and <secret_name> with the name that is listed in the name: entry of the file.

   6. Download the rhdm-7.4.0-openshift-templates.zip product deliverable file from the Software Downloads page and extract the rhdm74-image-streams.yaml file.

   7. Complete one of the following actions:

      • Enter the following command:

        $ oc create -f rhdm74-image-streams.yaml

      • In the OpenShift Web UI, select Add to Project Import YAML / JSON and then choose the file or paste its contents.

        Note

        If you complete these steps, you install the image streams into the namespace of your project. In this case, when you deploy the templates, you must set the IMAGE_STREAM_NAMESPACE parameter to the name of this project.