The process of switching hosts to Ansible backups got a little
... backed up. I think the idea was that we would move these legacy
hosts to an all-Ansible configuration a little faster than what has
ended up happening.
In the mean time, we have done a better job of merging our environment
so puppet hosts are just a regular host that runs a puppet step rather
than separate entities.
So there is no problem running these roles on these older servers.
This will bring consistency to our backup story with everything being
managed from Ansible.
This will currently setup these hosts to backup to the only opendev
backup server in vexxhost. As a follow-on, we will add another
opendev backup host in another provider to provide dual-redundancy.
After that, we can remove the bup::site calls from these hosts and
retire the puppet-based backups.
Change-Id: Ieaea46d312056bf34992826d673356c56abfc87a