Fix healthmanager not update amphora health when LB disable

When disable a loadbalancer have listener, the Heath Manager not update
amphora heath make it keep failover after heartbeat_timeout end time

Story: 2007587
Task: 39521

Change-Id: Ia6d3f40ae1b9b352492162513c9262748ee67e6f

octavia/controller/healthmanager/health_drivers/update_db.py

@@ -162,7 +162,8 @@ class UpdateHealthDb(update_base.HealthUpdateBase):
 
         if db_lb:
             expected_listener_count = 0
-            if 'PENDING' in db_lb['provisioning_status']:
+            if ('PENDING' in db_lb['provisioning_status'] or
+               not db_lb['enabled']):
                 ignore_listener_count = True
             else:
                 for key, listener in db_lb.get('listeners', {}).items():

octavia/tests/unit/controller/healthmanager/health_drivers/test_update_db.py

@@ -110,9 +110,10 @@ class TestUpdateHealthDb(base.TestCase):
     def _make_fake_lb_health_dict(self, listener=True, pool=True,
                                   health_monitor=True, members=1,
                                   lb_prov_status=constants.ACTIVE,
-                                  listener_protocol=constants.PROTOCOL_TCP):
+                                  listener_protocol=constants.PROTOCOL_TCP,
+                                  enabled=True):
 
-        lb_ref = {'enabled': True, 'id': self.FAKE_UUID_1,
+        lb_ref = {'enabled': enabled, 'id': self.FAKE_UUID_1,
                   constants.OPERATING_STATUS: 'bogus',
                   constants.PROVISIONING_STATUS: lb_prov_status}
 
@@ -158,6 +159,23 @@ class TestUpdateHealthDb(base.TestCase):
         self.assertTrue(self.loadbalancer_repo.update.called)
         self.assertTrue(self.amphora_health_repo.replace.called)
 
+    def test_update_health_lb_disabled(self):
+
+        health = {
+            "id": self.FAKE_UUID_1,
+            "ver": 1,
+            "listeners": {},
+            "recv_time": time.time()
+        }
+
+        lb_ref = self._make_fake_lb_health_dict(
+            listener=True, pool=True, enabled=False)
+        self.hm.amphora_repo.get_lb_for_health_update.return_value = lb_ref
+        self.hm.update_health(health, '192.0.2.1')
+        self.assertTrue(self.amphora_repo.get_lb_for_health_update.called)
+        self.assertTrue(self.loadbalancer_repo.update.called)
+        self.assertTrue(self.amphora_health_repo.replace.called)
+
     def test_update_health_lb_pending_no_listener(self):
 
         health = {

releasenotes/notes/Fix-healthmanager-not-update-amphora-health-when-LB-disabled-46a4fb295c6d0850.yaml

@@ -0,0 +1,6 @@
+---
+fixes:
+  - |
+    Fixed an issue when a loadbalancer is disabled, Octavia Health Manager
+    keeps failovering the amphorae
+