There is a race where the libvirtd.pid file appears but the socket has
not (yet) been created; this adds a timeout-loop waiting specifically
for the socket.
Change-Id: Ib2ede3b8d5c49bc650bf8a64cbffc03444bb2dd0
This PS moves libvirt into its own chart - decoupling it from nova,
both making it easier to deploy and use seperately and permitting
use of other compute backends.
Partially implements: blueprint split-nova-and-neutron-infra
Change-Id: I06237157244c3cdb5503eafa01229d061b1614f0