Add missing reload method in amphora noop driver

The reload method was also missing in the abstract class.

Task: 40140
Story: 2007847

Change-Id: I2328b3dc4d5b95c8771a305d3d4bb1dee6019117

octavia/amphorae/drivers/driver_base.py

@@ -64,6 +64,20 @@ class AmphoraLoadBalancerDriver(object, metaclass=abc.ABCMeta):
         add more function along with the development.
         """
 
+    @abc.abstractmethod
+    def reload(self, loadbalancer, amphora):
+        """Reload the listeners on the amphora.
+
+        :param loadbalancer: loadbalancer object to reload listeners
+        :type loadbalancer: octavia.db.models.LoadBalancer
+        :param amphora: Amphora to start. If None, reload on all amphora
+        :type amphora: octavia.db.models.Amphora
+        :returns: return a value list (listener, vip, status flag--enable)
+
+        At this moment, we just build the basic structure for testing, will
+        add more function along with the development.
+        """
+
     @abc.abstractmethod
     def delete(self, listener):
         """Delete the listener on the vip.

octavia/amphorae/drivers/noop_driver/driver.py

@@ -64,6 +64,13 @@ class NoopManager(object):
             (loadbalancer.id, amphora.id)] = (loadbalancer, amphora,
                                               'start')
 
+    def reload(self, loadbalancer, amphora=None):
+        LOG.debug("Amphora %s no-op, reload listeners, lb %s, amp %s",
+                  self.__class__.__name__, loadbalancer.id, amphora)
+        self.amphoraconfig[
+            (loadbalancer.id, amphora.id)] = (loadbalancer, amphora,
+                                              'reload')
+
     def delete(self, listener):
         LOG.debug("Amphora %s no-op, delete listener %s, vip %s",
                   self.__class__.__name__,
@@ -142,6 +149,10 @@ class NoopAmphoraLoadBalancerDriver(
 
         self.driver.start(loadbalancer, amphora)
 
+    def reload(self, loadbalancer, amphora=None):
+
+        self.driver.reload(loadbalancer, amphora)
+
     def delete(self, listener):
 
         self.driver.delete(listener)

octavia/tests/unit/amphorae/drivers/test_noop_amphoraloadbalancer_driver.py

@@ -95,6 +95,14 @@ class TestNoopAmphoraLoadBalancerDriver(base.TestCase):
                          self.driver.driver.amphoraconfig[(
                              self.load_balancer.id, '321')])
 
+    def test_reload(self):
+        mock_amphora = mock.MagicMock()
+        mock_amphora.id = '321'
+        self.driver.reload(self.load_balancer, amphora=mock_amphora)
+        self.assertEqual((self.load_balancer, mock_amphora, 'reload'),
+                         self.driver.driver.amphoraconfig[(
+                             self.load_balancer.id, '321')])
+
     def test_delete(self):
         self.driver.delete(self.listener)
         self.assertEqual((self.listener, self.vip, 'delete'),