tree 015402ba225b5e58a72ec4b7c3f8cbbd038cbf71
parent 2963b681d81e259fdea28db466c90e204be00e4b
author Jan Schär <jan@monogon.tech> 1752824785 +0200
committer Jan Schär <jan@monogon.tech> 1753887146 +0000

osbase/build/mkoci/index: add package

This adds the mkoci/index package, which contains a Bazel rule for
building a multi-platform OCI index for an image.

rules_oci also has an image index rule, but it is not suitable for us.
That rule tries to read the platform from the container image config,
meaning it only works for container images. The rule here works for
arbitrary OCI artifact types. To make this work, the rule which
generates the image must put the platform into the descriptor in
index.json.

Because the index is not for any specific platform, there is a new "all"
platform where the index is generated.

Change-Id: I4ab1b87609d10b77c2f7fc42ee427f87d9f5ddc2
Reviewed-on: https://review.monogon.dev/c/monogon/+/4476
Reviewed-by: Tim Windelschmidt <tim@monogon.tech>
Tested-by: Jenkins CI