comparison to stable/grizzly is not numeric

the current d-g code uses -ne which is an explicitly numeric
opperator. Make this != to do the right thing with strings. Use variable
that is local to setup_localrc().
Without this there we get:

[[: stable/grizzly: division by 0 (error token is "grizzly")

Change-Id: Ie338b33e4bc655cb8e06b8bf80ab75bb58bf0e5e
Cut tempest concurrency in half

While a group of us were investigating the top gate bugs today, at least
half of them are due to performance issues where nova isn't able to keep
up.  This change is to test the theory that dialing back the test load
will increase reliability of the gate.

We also have a lot of good data and ideas on how we can improve nova
performance (in particular, nova-network).  Hopefully we could turn this
back up in the future.

Change-Id: I2338ebf5df8bced935e9ed9b0ebd2d4e859b5dbe
Enable Firewall as a Service plugin

Aims to enable FWaaS plugin when using Neutron in the gate.
It will allow us to run Tempest tests against devstack-gate.

Change-Id: Iaf751730554c226a750d4deea61d7011a180d669
Signed-off-by: Emilien Macchi <emilien.macchi@enovance.com>
Merge "Enable Firewall as a Service plugin"
Enable Neutron metering service plugin

Aims to enable Metering plugin when using Neutron in the gate. It will allow
us to run Tempest tests against devstack-gate.

Change-Id: Id61aa17f2d66a5a56e8421dc63c3017d75198461
Signed-off-by: Emilien Macchi <emilien.macchi@enovance.com>
Merge "Cut tempest concurrency in half"
Merge "comparison to stable/grizzly is not numeric"
Merge "Enable Neutron metering service plugin"
disable error log enforcement

error log enforcement is a good goal, however given how long this
was off, we've got a few new errors that crept in, like the
nova-conductor race to set up topics (which shouldn't actually be
an error, as it actually is fine).

for now, let's do no harm.

Change-Id: Ic2f22afb6cd5a1ddeb858fe39b180d39d347242e
disable errexit for the test run phase of the script

we'd like to be able to control things with more granularity
towards the end of runs, not just blow up on errexit. So disable
this for the end of the runs before we go into tempest.

Change-Id: Ibe0e56f3ffd7d084d549562bcfd0069b32fef6df
Add support XenAPI driver

While there will be many more required changes, adding the initial hooks
to support selecting the XenAPI driver when building a localrc file.

Change-Id: I16639141008a07f8241952b9b2f3d3760f9716b9