Switch compute to use different inventory_hostname

Our role tests execute as non-root users, and the roles
need to access the environment variables for that non-root
user. Ansible, when targeting localhost, changes to
'connection: local' and thus breaks everything we need
to do against localhost as root unless we use 'become: true',
but we if generally use that against remote hosts we lose
the environment variables for the non-root user.

As such, we switch the inventory to target 'compute1' instead,
which has the address '10.1.1.1' (br-mgmt), so that we do not
have to deal with the implict connection type changes implemented
by Ansible.

Depends-On: https://review.openstack.org/584033
Change-Id: I79256f9cb542732cfdff6439768f94769ee33b1c

tests/host_vars/compute1.yml

@@ -0,0 +1,17 @@
+---
+# Copyright 2016, Rackspace US, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+ansible_host: 10.1.1.1
+neutron_local_ip:  10.1.2.1

tests/host_vars/localhost.yml

@@ -13,9 +13,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-ansible_host: 127.0.0.1
-neutron_local_ip:  10.1.2.1
-ansible_python_interpreter: "/usr/bin/python2"
 bridges:
   - name: "br-mgmt"
     ip_addr: "10.1.1.1"

tests/inventory

@@ -3,6 +3,7 @@ localhost
 infra1
 openstack1
 tempest1
+compute1
 
 [all_containers]
 infra1
@@ -44,7 +45,7 @@ openstack1
 
 [neutron_linuxbridge_agent]
 openstack1
-localhost
+compute1
 
 [neutron_openvswitch_agent]
 
@@ -87,7 +88,7 @@ openstack1
 openstack1
 
 [nova_compute]
-localhost
+compute1
 
 [nova_conductor]
 openstack1