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.

Change-Id: I4f582ec3edd6ccff9573d4fb5e40e6274ea38847

tests/host_vars/compute1.yml

@@ -0,0 +1,22 @@
+---
+# Copyright 2018, 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
+
+neutron_provider_networks:
+  network_types: "vxlan,flat"
+  network_mappings: "flat:eth12"
+  network_vxlan_ranges: "1:1000"

tests/host_vars/localhost.yml

@@ -13,14 +13,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-ansible_host: 10.1.1.1
-
-neutron_provider_networks:
-  network_types: "vxlan,flat"
-  network_mappings: "flat:eth12"
-  network_vxlan_ranges: "1:1000"
-neutron_local_ip:  10.1.2.1
-
 bridges:
   - name: "br-mgmt"
     ip_addr: "10.1.1.1"

tests/inventory

@@ -2,6 +2,7 @@
 localhost
 infra1
 openstack1
+compute1
 
 [all_containers]
 infra1
@@ -76,7 +77,7 @@ neutron_server
 openstack1
 
 [zun_compute]
-localhost
+compute1
 
 [zun_all:children]
 zun_api

tests/test-zun-check.yml

@@ -15,7 +15,7 @@
 
 - name: Create a zun image
   hosts: zun_compute
-  become: true
+  remote_user: root
   tasks:
     - name: Pull cirros image
       command: docker pull cirros
@@ -33,7 +33,7 @@
 
 - name: Run zun service check
   hosts: zun_api[0]
-  become: true
+  remote_user: root
   tasks:
     - name: Check zun service is functional
       shell: |