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Preparing to install on IBM Power Virtual Server

Prerequisites

Requirements for installing OpenShift Container Platform on IBM Power Virtual Server

Before installing OpenShift Container Platform on IBM Power® Virtual Server you must create a service account and configure an IBM Cloud® account. See Configuring an IBM Cloud® account for details about creating an account, configuring DNS and supported IBM Power® Virtual Server regions.

You must manually manage your cloud credentials when installing a cluster to IBM Power® Virtual Server. Do this by configuring the Cloud Credential Operator (CCO) for manual mode before you install the cluster.

Choosing a method to install OpenShift Container Platform on IBM Power Virtual Server

You can install OpenShift Container Platform on IBM Power® Virtual Server using installer-provisioned infrastructure. This process involves using an installation program to provision the underlying infrastructure for your cluster. Installing OpenShift Container Platform on IBM Power® Virtual Server using user-provisioned infrastructure is not supported at this time.

See Installation process for more information about installer-provisioned installation processes.

Installing a cluster on installer-provisioned infrastructure

You can install a cluster on IBM Power® Virtual Server infrastructure that is provisioned by the OpenShift Container Platform installation program by using one of the following methods:

Configuring the Cloud Credential Operator utility

The Cloud Credential Operator (CCO) manages cloud provider credentials as Kubernetes custom resource definitions (CRDs). To install a cluster on IBM Power® Virtual Server, you must set the CCO to manual mode as part of the installation process.

To create and manage cloud credentials from outside of the cluster when the Cloud Credential Operator (CCO) is operating in manual mode, extract and prepare the CCO utility (ccoctl) binary.

The ccoctl utility is a Linux binary that must run in a Linux environment.
Prerequisites

  • You have access to an OpenShift Container Platform account with cluster administrator access.

  • You have installed the OpenShift CLI (oc).

Procedure

  1. Set a variable for the OpenShift Container Platform release image by running the following command:

    $ RELEASE_IMAGE=$(./openshift-install version | awk '/release image/ {print $3}')

  2. Obtain the CCO container image from the OpenShift Container Platform release image by running the following command:

    $ CCO_IMAGE=$(oc adm release info --image-for='cloud-credential-operator' $RELEASE_IMAGE -a ~/.pull-secret)

    Ensure that the architecture of the $RELEASE_IMAGE matches the architecture of the environment in which you will use the ccoctl tool.

  3. Extract the ccoctl binary from the CCO container image within the OpenShift Container Platform release image by running the following command:

    $ oc image extract $CCO_IMAGE \
  --file="/usr/bin/ccoctl.<rhel_version>" \(1)
  -a ~/.pull-secret
    1 For <rhel_version>, specify the value that corresponds to the version of Red Hat Enterprise Linux (RHEL) that the host uses. If no value is specified, ccoctl.rhel8 is used by default. The following values are valid:

    • rhel8: Specify this value for hosts that use RHEL 8.

    • rhel9: Specify this value for hosts that use RHEL 9.

  4. Change the permissions to make ccoctl executable by running the following command:

    $ chmod 775 ccoctl.<rhel_version>
Verification

  • To verify that ccoctl is ready to use, display the help file. Use a relative file name when you run the command, for example:

    $ ./ccoctl.rhel9
    Example output
    OpenShift credentials provisioning tool

Usage:
  ccoctl [command]

Available Commands:
  aws          Manage credentials objects for AWS cloud
  azure        Manage credentials objects for Azure
  gcp          Manage credentials objects for Google cloud
  help         Help about any command
  ibmcloud     Manage credentials objects for IBM Cloud
  nutanix      Manage credentials objects for Nutanix

Flags:
  -h, --help   help for ccoctl

Use "ccoctl [command] --help" for more information about a command.
Additional resources

Next steps