Emit warning when instances have ports not ACTIVE

This changes the tempest logic to request all ports rather than
just ACTIVE ports for a server and then filters them locally so
we can log an warning message when a server has ports not in the
ACTIVE state. This will help debug cases in the future where the
Neutron port status is in an unstable state due to agent wiring
errors.

Change-Id: I979a06688a5dfecaaef5e7e4a85cb8494095c754
Closes-Bug: #1523638
1 file changed