Feature to opt out from RPM tracking automatically updating the images

[dharmit]

Do we want to provide a feature for users to opt out of RPM tracking so that an update in RPM doesn't automatically update the container images? This also involves adding a configuration option to yaml files being added to container-index.

[navidshaikh]

+1

IMO, we should keep the default to True <-- rebuild_on_rpm_update. The default being, even if the config option is not mentioned in the index entry.

If a user wants to opt out, it sets it explicitly. False <- rebuild_on_rpm_update.

The more control on build config as optional parameters while keeping the needed params set small should keep it simple.