Docs: What do all these Dockerfiles do?

[flickerfly]

There are several Dockerfiles in this repo. It would be helpful to have a comment at the top of each Dockerfile that gave some indication of the purpose for each one. Maybe some of them are old and can be removed?

The only Dockerfile mentioned in the README doesn't appear to me to be any of the ones in the repo.

[flickerfly]

I'm trying my hand at commenting the Dockerfiles with what I think is going on. Here is my commit. If it even begins to make sense, I'll be glad to put in a PR for further review.
https://github.com/flickerfly/operator-registry/commit/5e59618d372dbe606509810421384300b241cdf2

[kapooklovely]

There are several Dockerfiles in this repo. It would be helpful to have a comment at the top of each Dockerfile that gave some indication of the purpose for each one. Maybe some of them are old and can be removed?

The only Dockerfile mentioned in the README doesn't appear to me to be any of the ones in the repo.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[flickerfly]

This probably shouldn't get marked stale.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.