containers: Generate container metadata when requested.
Generate ContainerImageInfo message to a jsonpb file when requested
on the command line.
BUG=b:200473935
TEST=local build_api run
Cq-Depend: chromium:3214703
Change-Id: I502daad3d7bdb90ba50a48f05c996db059e6d3c3
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/dev-util/+/3216859
Tested-by: Sean McAllister <smcallis@google.com>
Commit-Queue: Sean McAllister <smcallis@google.com>
Reviewed-by: Seewai Fu <seewaifu@google.com>
Reviewed-by: Otabek Kasimov <otabek@google.com>
Reviewed-by: Derek Beckett <dbeckett@chromium.org>
4 files changed
