Description of problem:

After a system update/upgrade, the CNS images may be outdated.  We need to add instructions for determining older images and updating them

Version-Release number of selected component (if applicable):

3.9

How reproducible:

100%

Steps to Reproduce:
1. For target cluster, upgrade from older to newer version
2. Check CNS images

Actual results:

CNS images are the older versions

Expected results:

CNS images are the newer versions

Additional info:

May want to add (for more information) Red Hat Container Catalog links
Identified images:
* rhgs3/rhgs-gluster-blockprov-rhel7 https://access.redhat.com/containers/?tab=overview#/registry.access.redhat.com/rhgs3/rhgs-gluster-block-prov-rhel7
* rhgs3/rhgs-s3-server-rhel7 https://access.redhat.com/containers/?tab=overview#/registry.access.redhat.com/rhgs3/rhgs-s3-server-rhel7
* rhgs3/rhgs-server-rhel7 https://access.redhat.com/containers/?tab=overview#/registry.access.redhat.com/rhgs3/rhgs-server-rhel7
* rhgs3/rhgs-volmanager-rhel7 https://access.redhat.com/containers/?tab=overview#/registry.access.redhat.com/rhgs3/rhgs-volmanager-rhel7

Initial steps:
* oc get pods -o yaml | egrep 'image: '
* oc get dc -o yaml | egrep 'image: '
* oc get ds -o yaml | egrep 'image: '

Updating:
* Edit dc and ds for new tag:
   * For OpenShift 3.9, use tag: v3.9
   * Also ensure the image name is fully qualified (e.g. registry.access.redhat.com/rhgs3/rhgs-gluster-block-prov-rhel7 instead of rhgs3/rhgs-gluster-block-prov-rhel7)

Verify:
* oc get pods -o yaml | egrep 'image: '
* oc get dc -o yaml | egrep 'image: '
* oc get ds -o yaml | egrep 'image: '
and verify tags are correct