Support for healthcheck settings

[davidcassany]

I am wondering if there is any chance to implement healthcheck configurations in umoci. The demand is originated from user demand on KIWI (see OSInside/kiwi#1639). I did a quick check on umoci and I could not see any way to specify the healthcheck from the command line.

Is this feature part of the umoci roadmap? Could it be included into the roadmap if it is not already there?

[cyphar]

Healthchecks aren't part of the OCI image-spec at the moment, and buildah actually ignores healthcheck options if generating OCI images. Maybe we could provide them as annotations or something, but not other tool would understand them.

Maybe we should add them to the image-spec...

[olof-nord]

I arrived here thinking, well maybe there is an issue tracking this in the OCI image-spec project, and sure there is:

opencontainers/image-spec#749