Using a Service Account to prune images and other resources in OpenShift

Issue

• A user is needed with permissions to prune images, builds, and deployments across a cluster
• A non-expiring token is needed for pruning operations

• The prune operation is failing with the following error - as reported in Error when trying to prune images in OpenShift: "You must use a client config with a token":

  $ oc adm prune images --confirm=true
  error: You must use a client config with a token