I'd like VMs to have random IDs as their hostname/display name in nova list and horizon and not have nova boot name honored.
I want VMs to be anonymous, a la EC2, and discourage users from thinking in terms of a server, but as a process or component of a larger system.
It seems nova.conf:instance_name_template looks interesting but maybe not what I need.
Looking at nova/objects/instance.py:185 it seems a good place to start, but I suspect if I modify that things will break in lots of other places.
Ultimately I'd love to have a schema like tenant_name-instance_number, but I'm happy to settle for just an instance number.