The compute service list is polled until all expected hosts are reported or a
timeout occurs (600s).
Adds a cellv2_discovery flag to puppet services. Used to generate a list of
hosts that should have cellv2 host mappings.
Adds a canonical fqdn and that should match the fqdn reported by a host.
Adds the ability to upload a config script for docker config instead of using
complex bash on-liners.
Closes-bug: 1720821
Change-Id: I33e2f296526c957cb5f96dff19682a4e60c6a0f0
61fcfca045