Set CentOS-8 as reference DevStack job

Change-Id: I30a6bb63269f031a74f9bff6c765d59d91088797

zuul.d/devstack.yaml

@@ -146,13 +146,20 @@
     name: tobiko-devstack-functional-centos-8
     parent: tobiko-devstack-functional
     nodeset: devstack-single-node-centos-8
-    voting: false
 
 
 - job:
     name: tobiko-devstack-functional-ubuntu-bionic
     parent: tobiko-devstack-functional
     nodeset: openstack-single-node-bionic
+    voting: false
+
+
+- job:
+    name: tobiko-devstack-functional-ubuntu-focal
+    parent: tobiko-devstack-functional
+    nodeset: openstack-single-node-focal
+    voting: false
 
 
 - job:
@@ -225,3 +232,17 @@
       subnode:
         devstack_services:
           tls-proxy: true
+
+
+- job:
+    name: tobiko-devstack-faults-ubuntu-focal
+    parent: tobiko-devstack-faults
+    nodeset: openstack-three-node-focal
+    voting: false
+    vars:
+      devstack_services:
+        tls-proxy: true
+    group-vars:
+      subnode:
+        devstack_services:
+          tls-proxy: true

zuul.d/nodes.yaml

@@ -71,3 +71,39 @@
         nodes:
           - compute1
           - compute2
+
+
+- nodeset:
+    name: openstack-three-node-focal
+    nodes:
+      - name: controller
+        label: ubuntu-focal
+      - name: compute1
+        label: ubuntu-focal
+      - name: compute2
+        label: ubuntu-focal
+
+    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

@@ -14,10 +14,12 @@
 
     check:
       jobs:
-        - tobiko-tox-py38-centos-8
         - tobiko-devstack-functional-centos-8
         - tobiko-devstack-functional-ubuntu-bionic
+        - tobiko-devstack-functional-ubuntu-focal
         - tobiko-devstack-faults-centos-8
+        - tobiko-devstack-faults-ubuntu-bionic
+        - tobiko-devstack-faults-ubuntu-focal
         - tobiko-tox-infrared-centos-7
         - tobiko-tox-infrared-centos-8
         - tobiko-tox-infrared-fedora-latest
@@ -26,11 +28,16 @@
 
     gate:
       jobs:
-        - tobiko-devstack-functional
+        - tobiko-devstack-functional-centos-8
         - tobiko-tox-infrared-centos-8
 
     periodic:
       jobs:
+        - tobiko-devstack-functional-centos-8
+        - tobiko-devstack-functional-ubuntu-bionic
+        - tobiko-devstack-functional-ubuntu-focal
+        - tobiko-devstack-faults-centos-8
         - tobiko-devstack-faults-ubuntu-bionic
+        - tobiko-devstack-faults-ubuntu-focal
         - tobiko-tripleo-functional
         - tobiko-tripleo-faults