Building Images with Supportable Enterprise Distros

Let’s say I’ve got a license for SLES. If you need tech support, it pretty much has to be for an application that they officially support. I’ve been trying to write Dockerfiles to create images that would only incorporate officially supported RPM’s and it’s really difficult because in order to write much of anything, you need unsupported RPM’s.

I’m wondering if anyone else here is writing Dockerfiles for RHEL or SLES and if you are running into the same kinds of obstacles? If so, do you care that you’re image might be unsupportable?