Consider use of opencontainers spec metadata in container images

[planetf1]

          The opencontainers spec defines a list of standard annotations which could be used to add in important metadata. This superceeds the earlier label schema

See https://github.com/opencontainers/image-spec/blob/main/annotations.md

For instance this might be

LABEL org.opencontainers.image.version="5"

It may be worth opening a new issue just on this specific aspect

Originally posted by @planetf1 in #298 (comment)

[hawazyn]

@baentsch @ajbozarth I would like to take this issue. However, there are a lot of annotations in the OCI specification. Which of these should I prioritize, and are there any that should be left out for now? Looking forward to your guidance.

[baentsch]

Thanks for the offer @hawazyn -- but fwiw, I have no clue what this is about or what benefits this would bring. I'd thus suggest asking @planetf1 for guidance.

[hawazyn]

Thanks for the offer @hawazyn -- but fwiw, I have no clue what this is about or what benefits this would bring. I'd thus suggest asking @planetf1 for guidance.

Well, after a quick search, I don’t see it as a priority or something that would add significant value.