Support tls_enabled for Octavia pool

Adding support `tls_enabled` property for the resource `OS::Octavia::Pool`, the
property is allowed to be updated as well. The property 'tls_enabled' was
introduced in Octavia since Stein release. The default value is False if it
is not specified in Heat template.

Task: 30926
Story: 2005646

Change-Id: I1de9154e5e2ba9f246b2785f18ce7891e69ec25c

heat/engine/resources/openstack/octavia/pool.py

@@ -17,6 +17,7 @@ from heat.engine import attributes
 from heat.engine import constraints
 from heat.engine import properties
 from heat.engine.resources.openstack.octavia import octavia_base
+from heat.engine import support
 from heat.engine import translation
 
 
@@ -32,10 +33,11 @@ class Pool(octavia_base.OctaviaBase):
         ADMIN_STATE_UP, DESCRIPTION, SESSION_PERSISTENCE, NAME,
         LB_ALGORITHM, LISTENER, LOADBALANCER, PROTOCOL,
         SESSION_PERSISTENCE_TYPE, SESSION_PERSISTENCE_COOKIE_NAME,
+        TLS_ENABLED,
     ) = (
         'admin_state_up', 'description', 'session_persistence', 'name',
         'lb_algorithm', 'listener', 'loadbalancer', 'protocol',
-        'type', 'cookie_name'
+        'type', 'cookie_name', 'tls_enabled',
     )
 
     SESSION_PERSISTENCE_TYPES = (
@@ -124,6 +126,13 @@ class Pool(octavia_base.OctaviaBase):
                 constraints.AllowedValues(SUPPORTED_PROTOCOLS),
             ]
         ),
+        TLS_ENABLED: properties.Schema(
+            properties.Schema.BOOLEAN,
+            _('Enable backend member re-encryption.'),
+            default=False,
+            update_allowed=True,
+            support_status=support.SupportStatus(version='14.0.0'),
+        ),
     }
 
     attributes_schema = {

heat/tests/openstack/octavia/test_pool.py

@@ -87,7 +87,8 @@ class PoolTest(common.HeatTestCase):
                 'listener_id': '123',
                 'loadbalancer_id': 'my_lb',
                 'protocol': 'HTTP',
-                'admin_state_up': True
+                'admin_state_up': True,
+                'tls_enabled': False,
             }
         }
 

releasenotes/notes/octavia-pool-tls-enabled-373a8c74f7c7664b.yaml

@@ -0,0 +1,6 @@
+---
+features:
+  - Support ``tls_enabled`` property for the resource ``OS::Octavia::Pool``, the
+    property is allowed to be updated as well. The property 'tls_enabled' was
+    introduced in Octavia since Stein release. The default value is False if it
+    is not specified in Heat template.