Create CentOS Neutron job

Change-Id: I782889abff80eb5ed71910694ccfc165b6c821c9

tox.ini

@@ -47,7 +47,6 @@ whitelist_externals=
 
 
 [testenv:neutron]
-basepython = python3
 
 commands =
     tobiko-delete --all

zuul.d/nodes.yaml

@@ -31,3 +31,38 @@
          nodes:
            - compute1
            - compute2
+
+
+- nodeset:
+     name: openstack-three-node-centos-7
+     nodes:
+       - name: controller
+         label: centos-7
+       - name: compute1
+         label: centos-7
+       - name: compute2
+         label: centos-7
+     groups:
+       # Node where tests are executed and test results collected
+       - name: tempest
+         nodes:
+           - controller
+       # Nodes running the compute service
+       - name: compute
+         nodes:
+           - compute1
+           - compute2
+       # Nodes that are not the controller
+       - name: subnode
+         nodes:
+           - compute1
+           - compute2
+       # Switch node for multinode networking setup
+       - name: switch
+         nodes:
+           - controller
+       # Peer nodes for multinode networking setup
+       - name: peers
+         nodes:
+           - compute1
+           - compute2

zuul.d/project.yaml

@@ -11,6 +11,7 @@
         - openstack-tox-py36
         - openstack-tox-py37
         - openstack-tox-py27
+        - tobiko-devstack-neutron-centos
         - tobiko-devstack-neutron
         - tobiko-devstack-neutron-fedora
     gate:

zuul.d/tobiko-devstack.yaml

@@ -131,3 +131,19 @@
       subnode:
         devstack_services:
           tls-proxy: false
+
+- job:
+    name: tobiko-devstack-neutron-centos
+    parent: tobiko-devstack-neutron
+    nodeset: openstack-three-node-centos-7
+    vars:
+      devstack_localrc:
+        USE_PYTHON3: false
+      devstack_services:
+        tls-proxy: false
+    group-vars:
+      subnode:
+        devstack_localrc:
+          USE_PYTHON3: false
+        devstack_services:
+          tls-proxy: false