Add cinder-plugin-ceph-tempest-mn-aa job

A new job deploys Cinder+Ceph in Active/Active HA mode and runs tempest
tests to verify it works.

Change-Id: I9ccded0f2be1c0769017443e39227e0c4d9e22ff

.zuul.yaml

@@ -48,6 +48,8 @@
               - ^setup.cfg$
               - ^tools/.*$
               - ^tox.ini$
+        - cinder-plugin-ceph-tempest-mn-aa:
+            voting: false
         - cinder-tempest-plugin-lvm-lio-barbican:
             irrelevant-files: *functional-irrelevant-files
         - cinder-grenade-mn-sub-volbak:
@@ -158,6 +160,30 @@
             volume-feature-enabled:
               volume_revert: True
 
+- job:
+    name: cinder-plugin-ceph-tempest-mn-aa
+    nodeset: openstack-two-node-bionic
+    parent: devstack-plugin-ceph-tempest-py3
+    roles:
+      - zuul: opendev.org/openstack/cinderlib
+      - zuul: opendev.org/openstack/cinder-tempest-plugin
+    run: playbooks/tempest-and-cinderlib-run.yaml
+    post-run: playbooks/post-cinderlib.yaml
+    required-projects:
+      - opendev.org/openstack/cinderlib
+    vars:
+      zuul_additional_subunit_dirs:
+        - "{{ ansible_user_dir }}/{{ zuul.projects['opendev.org/openstack/cinderlib'].src_dir }}"
+      devstack_local_conf:
+        post-config:
+          $CINDER_CONF:
+            DEFAULT:
+              cluster: ceph
+        test-config:
+          $TEMPEST_CONFIG:
+            volume-feature-enabled:
+              volume_revert: True
+
 - job:
     name: cinder-grenade-mn-sub-bak
     parent: grenade-multinode