Base Ubuntu version changing

[circleci-public]

Base Ubuntu version changing

[JalexChen]

Hey @wyardley, Just to confirm, what you're trying to say is you would like to have a new node version e.g 14.21, but use an older ubuntu version (20.04) vs what the default base image has (22.04)?

If so, I think this is a good idea, and I think @felicianotech would agree, especially when there are breaking changes introduced or in the case of our base image changing from 20.04 to 22.04 in October.

The ability to do this already exists. However, it has not been implemented directly. For example, in cimg-base, there are directories for 18.04, 20.04, and 22.04.

So for your use-case, FROM cimg/base:2022.11-20.04 would be what you're looking for.

This is an example for Ruby to address OpenSSL compatibility. 2.7 vs 3.1

I'm going to put this in the backlog as a future task to work on

[wyardley]

Yes, confirming that’s what I’d like!
Also if there were a way to bake in an OpenSSL v1 compatibility layer into the base image that has 22.x, that would make my more specific issue a lot less of an issue (could file a separate issue for that if it’s something you’d consider)