Pulling images using oc ibm-pak generate mirror-manifests

[rajdeepsingh1]

Issue Summary

This is regarding the ibm-guardium-insights case bundle that uses the ibm-cp-common-services case bundle.

When performing a mirror for airgap offline registries, the mirror pulls down current and older versions of microservices and middleware images. This results in a massive list of images not acceptable to clients. This also requires large time consumption and delay in upgrade procedure, for Guardium Insights (now known as Guardium Data Security Center).

Is it possible to cut down which images we require? For instance, for the

ibmCommonServiceOperatorSetup - we only want images for Kafka &

ibm-im-operator
ibm-commonui-operator
ibm-events-operator
ibm-platformui-operator

instead of all.

Is this something the oc ibm-pak command could support?

We've tested using the --filter option as well, however a step further to gather select images instead of all would be idea.
Issue Details
Steps to reproduce

export CASE_NAME=ibm-guardium-insights
export CASE_VERSION=2.3.5

oc ibm-pak generate mirror-manifests \ $CASE_NAME \ $LOCAL_REGISTRY_HOST \ --version $CASE_VERSION

oc ibm-pak describe $CASE_NAME --version $CASE_VERSION --list-mirror-images

400+ images are mirrored.

Expected behavior

We are looking to minimize the amount of images produced, require only a select few instead of all.