Container Exporter: Add metadata labels to containers

[christophermaier]

To help integrate into automated tooling better, we can start adding labels to our container images, along the lines of the recommendations of http://label-schema.org/rc1/

A non-exhaustive list of potential pieces of metadata we could add would include:

• core/hab version in the container
• core/hab-launcher version in the container
• core/hab-sup version in the container
• exported package version
• container creation date
• core/hab-pkg-export-container version version used to create the image
• Whether Docker or Buildah was used to create the image (and the identifier of the corresponding package)

If we were to tackle #7662, we could extract more information out of the main service package, as well.

Aha! Link: https://chef.aha.io/features/APPDL-123

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[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. We value your input and contribution. Please leave a comment if this issue still affects you.