This adds a bit to the post.yaml for docker to write out a json file
containing all the information on how we are start docker containers
(thanks Dan!). I've then written a script that parses this that can
be used to execute docker run commands in various ways for debugging
purposes.
Change-Id: I36d66b42d1ac5030db8841820d4fc512a71d1285
Co-Authored-by: Dan Prince <dprince@redhat.com>