Add service_update to conductor.

Add a service_update method to the conductor API.  This will be
necessary for removing direct db access from the servicegroup db driver.

Part of bp no-db-compute.

Change-Id: Ic9a205ed4e810ee3511378742f764b2b311174a7

nova/conductor/api.py

@@ -285,6 +285,9 @@ class LocalAPI(object):
         return self._manager.compute_node_update(context, node, values,
                                                  prune_stats)
 
+    def service_update(self, context, service, values):
+        return self._manager.service_update(context, service, values)
+
 
 class API(object):
     """Conductor API that does updates via RPC to the ConductorManager."""
@@ -548,3 +551,6 @@ class API(object):
     def compute_node_update(self, context, node, values, prune_stats=False):
         return self.conductor_rpcapi.compute_node_update(context, node,
                                                          values, prune_stats)
+
+    def service_update(self, context, service, values):
+        return self.conductor_rpcapi.service_update(context, service, values)

nova/conductor/manager.py

@@ -43,7 +43,7 @@ datetime_fields = ['launched_at', 'terminated_at']
 class ConductorManager(manager.SchedulerDependentManager):
     """Mission: TBD."""
 
-    RPC_API_VERSION = '1.33'
+    RPC_API_VERSION = '1.34'
 
     def __init__(self, *args, **kwargs):
         super(ConductorManager, self).__init__(service_name='conductor',
@@ -310,3 +310,8 @@ class ConductorManager(manager.SchedulerDependentManager):
         result = self.db.compute_node_update(context, node['id'], values,
                                              prune_stats)
         return jsonutils.to_primitive(result)
+
+    @rpc_common.client_exceptions(exception.ServiceNotFound)
+    def service_update(self, context, service, values):
+        svc = self.db.service_update(context, service['id'], values)
+        return jsonutils.to_primitive(svc)

nova/conductor/rpcapi.py

@@ -66,6 +66,7 @@ class ConductorAPI(nova.openstack.common.rpc.proxy.RpcProxy):
     1.31 - Added migration_get_in_progress_by_host_and_node
     1.32 - Added optional node to instance_get_all_by_host
     1.33 - Added compute_node_create and compute_node_update
+    1.34 - Added service_update
     """
 
     BASE_RPC_API_VERSION = '1.0'
@@ -316,3 +317,8 @@ class ConductorAPI(nova.openstack.common.rpc.proxy.RpcProxy):
         msg = self.make_msg('compute_node_update', node=node_p, values=values,
                             prune_stats=prune_stats)
         return self.call(context, msg, version='1.33')
+
+    def service_update(self, context, service, values):
+        service_p = jsonutils.to_primitive(service)
+        msg = self.make_msg('service_update', service=service_p, values=values)
+        return self.call(context, msg, version='1.34')

nova/tests/conductor/test_conductor.py

@@ -747,6 +747,14 @@ class ConductorAPITestCase(_BaseTestCase, test.TestCase):
     def test_service_destroy(self):
         self._test_stubbed('service_destroy', '', returns=False)
 
+    def test_service_update(self):
+        ctxt = self.context
+        self.mox.StubOutWithMock(db, 'service_update')
+        db.service_update(ctxt, '', {}).AndReturn('fake-result')
+        self.mox.ReplayAll()
+        result = self.conductor.service_update(self.context, {'id': ''}, {})
+        self.assertEqual(result, 'fake-result')
+
     def test_instance_get_all_by_host(self):
         self._test_stubbed('instance_get_all_by_host',
                            self.context.elevated(), 'host')