Update farm build to directly push images to a registry
after all the builds are complete on all the nodes.
A manifest list is then created locally and pushed to
the registry as well.
Signed-off-by: Urvashi Mohnani <umohnani@redhat.com>
Followup from #20050. Lots of tiny problems in tests, all of
them adding up to significant maintainability problems.
These tests are currently impossible to run in a dev environment,
and super-painful to set up in 1mt, so I've just done a few hours
of cleanup and am giving up for the week.
This is ready for merge, in the sense that it's much better than
what exists now, but it still needs boatloads more work.
Signed-off-by: Ed Santiago <santiago@redhat.com>