NSX|V: Fix octavia delete cascade

- add listener default pool Id
- verify app profile id exists

Change-Id: I5794aac8f2db3ebcc30d82911e1a5b4b7419505d

vmware_nsx/services/lbaas/nsx_v/implementation/listener_mgr.py

@@ -113,6 +113,8 @@ def update_app_profile(vcns, context, listener, edge_id, edge_cert_id=None):
     lb_id = listener['loadbalancer_id']
     listener_binding = nsxv_db.get_nsxv_lbaas_listener_binding(
         context.session, lb_id, listener['id'])
+    if not listener_binding:
+        return
     app_profile_id = listener_binding['app_profile_id']
     app_profile = listener_to_edge_app_profile(listener, edge_cert_id)
     with locking.LockManager.get_lock(edge_id):

vmware_nsx/services/lbaas/octavia/octavia_listener.py

@@ -323,7 +323,6 @@ class NSXOctaviaListenerEndpoint(object):
 
         def dummy_completor(success=True):
             pass
-
         completor = self.get_completor_func(constants.LOADBALANCERS,
                                             loadbalancer, delete=True)
 
@@ -344,6 +343,9 @@ class NSXOctaviaListenerEndpoint(object):
                     pool['loadbalancer'] = loadbalancer
                 if pool.get('listener_id'):
                     pool['listener'] = listener_dict[pool['listener_id']]
+                    if pool['listener'].get('default_pool'):
+                        pool['listener']['default_pool']['id'] = pool[
+                            'listener']['default_pool']['pool_id']
                     pool['listeners'] = [pool['listener']]
                 for member in pool.get('members', []):
                     if not member.get('pool'):