Heat templates doesn't support AZ for trove cluster

Heat templates doesn't support Availability zone for
trove cluster now (support for only single trove instance)

Change-Id: If1df464df6248b46f59f3603177bc7fc45dc2755
Story: #2004821
Task: #28989
Signed-off-by: johjuhyun <juhyun.joh@samsung.com>

heat/engine/resources/openstack/trove/cluster.py

@@ -63,9 +63,9 @@ class TroveCluster(resource.Resource):
     )
 
     _INSTANCE_KEYS = (
-        FLAVOR, VOLUME_SIZE, NETWORKS,
+        FLAVOR, VOLUME_SIZE, NETWORKS, AVAILABILITY_ZONE,
     ) = (
-        'flavor', 'volume_size', 'networks',
+        'flavor', 'volume_size', 'networks', 'availability_zone',
     )
 
     _NICS_KEYS = (
@@ -169,6 +169,11 @@ class TroveCluster(resource.Resource):
                             },
                         ),
                     ),
+                    AVAILABILITY_ZONE: properties.Schema(
+                        properties.Schema.STRING,
+                        _('Name of the availability zone for DB instance.'),
+                        support_status=support.SupportStatus(version='14.0.0'),
+                    ),
                 }
             )
         ),
@@ -230,6 +235,9 @@ class TroveCluster(resource.Resource):
             instance_nics = self.get_instance_nics(instance)
             if instance_nics:
                 instance_dict["nics"] = instance_nics
+            instance_availability_zone = instance[self.AVAILABILITY_ZONE]
+            if instance_availability_zone:
+                instance_dict["availability_zone"] = instance_availability_zone
             instances.append(instance_dict)
 
         args = {

releasenotes/notes/heat-template-support-trove-cluster-996efba5dfb6f02d.yaml

@@ -0,0 +1,5 @@
+---
+features:
+  - |
+    The ``OS::Trove::Cluster`` resource type now supports specifying an
+    availability zone.