Merge "Add metadata proxy support in NSX/T plugin"

vmware_nsx/plugins/dvs/plugin.py

@@ -45,7 +45,7 @@ from vmware_nsx.common import exceptions as nsx_exc
 from vmware_nsx.common import nsx_constants
 from vmware_nsx.common import utils as c_utils
 from vmware_nsx.db import db as nsx_db
-from vmware_nsx import dhcpmeta_modes
+from vmware_nsx.dhcp_meta import modes as dhcpmeta_modes
 from vmware_nsx.dvs import dvs
 from vmware_nsx.dvs import dvs_utils
 

vmware_nsx/plugins/nsx_mh/plugin.py

@@ -72,7 +72,7 @@ from vmware_nsx.db import maclearning as mac_db
 from vmware_nsx.db import networkgw_db
 from vmware_nsx.db import nsx_models
 from vmware_nsx.db import qos_db
-from vmware_nsx import dhcpmeta_modes
+from vmware_nsx.dhcp_meta import modes as dhcpmeta_modes
 from vmware_nsx.extensions import maclearning as mac_ext
 from vmware_nsx.extensions import networkgw
 from vmware_nsx.extensions import qos

vmware_nsx/plugins/nsx_v3/plugin.py

@@ -64,6 +64,7 @@ from vmware_nsx.common import locking
 from vmware_nsx.common import nsx_constants
 from vmware_nsx.common import utils
 from vmware_nsx.db import db as nsx_db
+from vmware_nsx.dhcp_meta import rpc as nsx_rpc
 from vmware_nsx.nsxlib import v3 as nsxlib
 from vmware_nsx.nsxlib.v3 import client as nsx_client
 from vmware_nsx.nsxlib.v3 import cluster as nsx_cluster
@@ -651,6 +652,7 @@ class NsxV3Plugin(addr_pair_db.AllowedAddressPairsMixin,
         with context.session.begin(subtransactions=True):
             neutron_db = super(NsxV3Plugin, self).create_port(context, port)
             port["port"].update(neutron_db)
+            nsx_rpc.handle_port_metadata_access(self, context, neutron_db)
 
             (is_psec_on, has_ip) = self._create_port_preprocess_security(
                 context, port, port_data, neutron_db)
@@ -708,6 +710,8 @@ class NsxV3Plugin(addr_pair_db.AllowedAddressPairsMixin,
                 context.session, port_id)
             self._port_client.delete(nsx_port_id)
         self.disassociate_floatingips(context, port_id)
+        nsx_rpc.handle_port_metadata_access(self, context, port,
+                                            is_delete=True)
         ret_val = super(NsxV3Plugin, self).delete_port(context, port_id)
 
         return ret_val
@@ -1016,6 +1020,8 @@ class NsxV3Plugin(addr_pair_db.AllowedAddressPairsMixin,
         return self.get_router(context, router['id'])
 
     def delete_router(self, context, router_id):
+        nsx_rpc.handle_router_metadata_access(self, context, router_id,
+                                              interface=None)
         router = self.get_router(context, router_id)
         if router.get(l3.EXTERNAL_GW_INFO):
             self._update_router_gw_info(context, router_id, {})
@@ -1190,6 +1196,11 @@ class NsxV3Plugin(addr_pair_db.AllowedAddressPairsMixin,
                 # TODO(berlin): Announce the subnet on tier0 if enable_snat
                 # is False
                 pass
+            # Ensure the NSX logical router has a connection to a
+            # 'metadata access' network (with a proxy listening on
+            # its DHCP port), by creating it if needed.
+            nsx_rpc.handle_router_metadata_access(self, context, router_id,
+                                                  interface=info)
         except nsx_exc.ManagerError:
             with excutils.save_and_reraise_exception():
                 self.remove_router_interface(
@@ -1257,8 +1268,13 @@ class NsxV3Plugin(addr_pair_db.AllowedAddressPairsMixin,
                           "%(net_id)s not found at the backend"),
                       {'router_id': router_id,
                        'net_id': subnet['network_id']})
-        return super(NsxV3Plugin, self).remove_router_interface(
+        info = super(NsxV3Plugin, self).remove_router_interface(
             context, router_id, interface_info)
+        # Ensure the connection to the 'metadata access network' is removed
+        # (with the network) if this the last subnet on the router.
+        nsx_rpc.handle_router_metadata_access(self, context, router_id,
+                                              interface=info)
+        return info
 
     def create_floatingip(self, context, floatingip):
         new_fip = super(NsxV3Plugin, self).create_floatingip(

vmware_nsx/tests/unit/extensions/test_metadata.py

@@ -0,0 +1,259 @@
+# Copyright 2015 VMware, Inc.
+# All Rights Reserved
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+import mock
+import netaddr
+from oslo_config import cfg
+import webob.exc
+
+from neutron.common import constants
+from neutron.common import exceptions as n_exc
+from neutron import manager
+
+from vmware_nsx.api_client import exception as api_exc
+from vmware_nsx.common import config
+
+
+class MetaDataTestCase(object):
+
+    def _metadata_setup(self, mode=config.MetadataModes.DIRECT):
+        cfg.CONF.set_override('metadata_mode', mode, 'NSX')
+
+    def _metadata_teardown(self):
+        cfg.CONF.set_override('metadata_mode', None, 'NSX')
+
+    def test_router_add_interface_subnet_with_metadata_access(self):
+        self._metadata_setup()
+        self.test_router_add_interface_subnet()
+        self._metadata_teardown()
+
+    def test_router_add_interface_port_with_metadata_access(self):
+        self._metadata_setup()
+        self.test_router_add_interface_port()
+        self._metadata_teardown()
+
+    def test_router_add_interface_dupsubnet_returns_400_with_metadata(self):
+        self._metadata_setup()
+        self.test_router_add_interface_dup_subnet1_returns_400()
+        self._metadata_teardown()
+
+    def test_router_add_interface_overlapped_cidr_returns_400_with(self):
+        self._metadata_setup()
+        self.test_router_add_interface_overlapped_cidr_returns_400()
+        self._metadata_teardown()
+
+    def test_router_remove_interface_inuse_returns_409_with_metadata(self):
+        self._metadata_setup()
+        self.test_router_remove_interface_inuse_returns_409()
+        self._metadata_teardown()
+
+    def test_router_remove_iface_wrong_sub_returns_400_with_metadata(self):
+        self._metadata_setup()
+        self.test_router_remove_interface_wrong_subnet_returns_400()
+        self._metadata_teardown()
+
+    def test_router_delete_with_metadata_access(self):
+        self._metadata_setup()
+        self.test_router_delete()
+        self._metadata_teardown()
+
+    def test_router_delete_with_port_existed_returns_409_with_metadata(self):
+        self._metadata_setup()
+        self.test_router_delete_with_port_existed_returns_409()
+        self._metadata_teardown()
+
+    def test_delete_port_with_metadata(self):
+        self._metadata_setup(config.MetadataModes.INDIRECT)
+        with self.subnet() as s:
+            with self.port(subnet=s, fixed_ips=[], device_id='1234',
+                           device_owner=constants.DEVICE_OWNER_DHCP) as port:
+                self._delete('ports', port['port']['id'])
+        self._metadata_teardown()
+
+    def test_metadatata_network_created_with_router_interface_add(self):
+        self._metadata_setup()
+        with mock.patch.object(self._plugin_class, 'schedule_network') as f:
+            with self.router() as r:
+                with self.subnet() as s:
+                    self._router_interface_action('add',
+                                                  r['router']['id'],
+                                                  s['subnet']['id'],
+                                                  None)
+                    r_ports = self._list('ports')['ports']
+                    self.assertEqual(len(r_ports), 2)
+                    ips = []
+                    for port in r_ports:
+                        ips.extend([netaddr.IPAddress(fixed_ip['ip_address'])
+                                    for fixed_ip in port['fixed_ips']])
+                    meta_cidr = netaddr.IPNetwork('169.254.0.0/16')
+                    self.assertTrue(any([ip in meta_cidr for ip in ips]))
+                    # Needed to avoid 409.
+                    self._router_interface_action('remove',
+                                                  r['router']['id'],
+                                                  s['subnet']['id'],
+                                                  None)
+            # Verify that the metadata network gets scheduled, so that
+            # an active dhcp agent can pick it up.
+            expected_meta_net = {
+                'status': 'ACTIVE',
+                'subnets': [],
+                'name': 'meta-%s' % r['router']['id'],
+                'admin_state_up': True,
+                'tenant_id': '',
+                'port_security_enabled': False,
+                'shared': False,
+                'id': mock.ANY,
+                'mtu': mock.ANY
+            }
+            f.assert_any_call(mock.ANY, expected_meta_net)
+        self._metadata_teardown()
+
+    def test_metadata_network_create_rollback_on_create_subnet_failure(self):
+        self._metadata_setup()
+        with self.router() as r:
+            with self.subnet() as s:
+                # Raise a NeutronException (eg: NotFound).
+                with mock.patch.object(self._plugin_class,
+                                       'create_subnet',
+                                       side_effect=n_exc.NotFound):
+                    self._router_interface_action(
+                        'add', r['router']['id'], s['subnet']['id'], None)
+                # Ensure metadata network was removed.
+                nets = self._list('networks')['networks']
+                self.assertEqual(len(nets), 1)
+                # Needed to avoid 409.
+                self._router_interface_action('remove',
+                                              r['router']['id'],
+                                              s['subnet']['id'],
+                                              None)
+        self._metadata_teardown()
+
+    def test_metadata_network_create_rollback_on_add_rtr_iface_failure(self):
+        self._metadata_setup()
+        with self.router() as r:
+            with self.subnet() as s:
+                # Save function being mocked.
+                real_func = self._plugin_class.add_router_interface
+                plugin_instance = manager.NeutronManager.get_plugin()
+
+                # Raise a NeutronException when adding metadata subnet
+                # to router.
+                def side_effect(*args):
+                    if args[-1]['subnet_id'] == s['subnet']['id']:
+                        # Do the real thing.
+                        return real_func(plugin_instance, *args)
+                    # Otherwise raise.
+                    raise api_exc.NsxApiException()
+
+                with mock.patch.object(self._plugin_class,
+                                       'add_router_interface',
+                                       side_effect=side_effect):
+                    self._router_interface_action(
+                        'add', r['router']['id'], s['subnet']['id'], None)
+                # Ensure metadata network was removed.
+                nets = self._list('networks')['networks']
+                self.assertEqual(len(nets), 1)
+                # Needed to avoid 409.
+                self._router_interface_action('remove',
+                                              r['router']['id'],
+                                              s['subnet']['id'],
+                                              None)
+        self._metadata_teardown()
+
+    def test_metadata_network_removed_with_router_interface_remove(self):
+        self._metadata_setup()
+        with self.router() as r:
+            with self.subnet() as s:
+                self._router_interface_action('add', r['router']['id'],
+                                              s['subnet']['id'], None)
+                subnets = self._list('subnets')['subnets']
+                self.assertEqual(len(subnets), 2)
+                meta_cidr = netaddr.IPNetwork('169.254.0.0/16')
+                for subnet in subnets:
+                    cidr = netaddr.IPNetwork(subnet['cidr'])
+                    if meta_cidr == cidr or meta_cidr in cidr.supernet(16):
+                        meta_sub_id = subnet['id']
+                        meta_net_id = subnet['network_id']
+                ports = self._list(
+                    'ports',
+                    query_params='network_id=%s' % meta_net_id)['ports']
+                self.assertEqual(len(ports), 1)
+                meta_port_id = ports[0]['id']
+                self._router_interface_action('remove', r['router']['id'],
+                                              s['subnet']['id'], None)
+                self._show('networks', meta_net_id,
+                           webob.exc.HTTPNotFound.code)
+                self._show('ports', meta_port_id,
+                           webob.exc.HTTPNotFound.code)
+                self._show('subnets', meta_sub_id,
+                           webob.exc.HTTPNotFound.code)
+        self._metadata_teardown()
+
+    def test_metadata_network_remove_rollback_on_failure(self):
+        self._metadata_setup()
+        with self.router() as r:
+            with self.subnet() as s:
+                self._router_interface_action('add', r['router']['id'],
+                                              s['subnet']['id'], None)
+                networks = self._list('networks')['networks']
+                for network in networks:
+                    if network['id'] != s['subnet']['network_id']:
+                        meta_net_id = network['id']
+                ports = self._list(
+                    'ports',
+                    query_params='network_id=%s' % meta_net_id)['ports']
+                meta_port_id = ports[0]['id']
+                # Save function being mocked.
+                real_func = self._plugin_class.remove_router_interface
+                plugin_instance = manager.NeutronManager.get_plugin()
+
+                # Raise a NeutronException when removing metadata subnet
+                # from router.
+                def side_effect(*args):
+                    if args[-1].get('subnet_id') == s['subnet']['id']:
+                        # Do the real thing.
+                        return real_func(plugin_instance, *args)
+                    # Otherwise raise.
+                    raise api_exc.NsxApiException()
+
+                with mock.patch.object(self._plugin_class,
+                                       'remove_router_interface',
+                                       side_effect=side_effect):
+                    self._router_interface_action('remove', r['router']['id'],
+                                                  s['subnet']['id'], None)
+                # Metadata network and subnet should still be there.
+                self._show('networks', meta_net_id,
+                           webob.exc.HTTPOk.code)
+                self._show('ports', meta_port_id,
+                           webob.exc.HTTPOk.code)
+        self._metadata_teardown()
+
+    def test_metadata_dhcp_host_route(self):
+        self._metadata_setup(config.MetadataModes.INDIRECT)
+        subnets = self._list('subnets')['subnets']
+        with self.subnet() as s:
+            with self.port(subnet=s, device_id='1234',
+                           device_owner=constants.DEVICE_OWNER_DHCP) as port:
+                subnets = self._list('subnets')['subnets']
+                self.assertEqual(len(subnets), 1)
+                self.assertEqual(subnets[0]['host_routes'][0]['nexthop'],
+                                 '10.0.0.2')
+                self.assertEqual(subnets[0]['host_routes'][0]['destination'],
+                                 '169.254.169.254/32')
+            self._delete('ports', port['port']['id'])
+            subnets = self._list('subnets')['subnets']
+            # Test that route is deleted after dhcp port is removed.
+            self.assertEqual(len(subnets[0]['host_routes']), 0)
+        self._metadata_teardown()

vmware_nsx/tests/unit/nsx_mh/test_plugin.py

@@ -16,7 +16,6 @@
 import uuid
 
 import mock
-import netaddr
 from neutron.api.v2 import attributes
 from neutron.common import constants
 from neutron.common import exceptions as ntn_exc
@@ -52,6 +51,7 @@ from vmware_nsx.common import utils
 from vmware_nsx.db import db as nsx_db
 from vmware_nsx.nsxlib import mh as nsxlib
 from vmware_nsx.tests import unit as vmware
+from vmware_nsx.tests.unit.extensions import test_metadata
 from vmware_nsx.tests.unit.nsx_mh.apiclient import fake
 from vmware_nsx.tests.unit import test_utils
 
@@ -532,7 +532,8 @@ class L3NatTest(test_l3_plugin.L3BaseForIntTests, NsxPluginV2TestCase):
 
 class TestL3NatTestCase(L3NatTest,
                         test_l3_plugin.L3NatDBIntTestCase,
-                        NsxPluginV2TestCase):
+                        NsxPluginV2TestCase,
+                        test_metadata.MetaDataTestCase):
 
     def _test_create_l3_ext_network(self, vlan_id=0):
         name = 'l3_ext_net'
@@ -761,23 +762,12 @@ class TestL3NatTestCase(L3NatTest,
     def test_floatingip_with_invalid_create_port(self):
         self._test_floatingip_with_invalid_create_port(self._plugin_name)
 
-    def _metadata_setup(self):
-        cfg.CONF.set_override('metadata_mode', 'access_network', 'NSX')
-
-    def _metadata_teardown(self):
-        cfg.CONF.set_override('metadata_mode', None, 'NSX')
-
     def test_create_router_name_exceeds_40_chars(self):
         name = 'this_is_a_router_whose_name_is_longer_than_40_chars'
         with self.router(name=name) as rtr:
             # Assert Neutron name is not truncated
             self.assertEqual(rtr['router']['name'], name)
 
-    def test_router_add_interface_subnet_with_metadata_access(self):
-        self._metadata_setup()
-        self.test_router_add_interface_subnet()
-        self._metadata_teardown()
-
     def test_router_add_interface_port(self):
         orig_update_port = self.plugin.update_port
         with self.router() as r, (
@@ -804,216 +794,6 @@ class TestL3NatTestCase(L3NatTest,
                                           None,
                                           p['port']['id'])
 
-    def test_router_add_interface_port_with_metadata_access(self):
-        self._metadata_setup()
-        self.test_router_add_interface_port()
-        self._metadata_teardown()
-
-    def test_router_add_interface_dupsubnet_returns_400_with_metadata(self):
-        self._metadata_setup()
-        self.test_router_add_interface_dup_subnet1_returns_400()
-        self._metadata_teardown()
-
-    def test_router_add_interface_overlapped_cidr_returns_400_with(self):
-        self._metadata_setup()
-        self.test_router_add_interface_overlapped_cidr_returns_400()
-        self._metadata_teardown()
-
-    def test_router_remove_interface_inuse_returns_409_with_metadata(self):
-        self._metadata_setup()
-        self.test_router_remove_interface_inuse_returns_409()
-        self._metadata_teardown()
-
-    def test_router_remove_iface_wrong_sub_returns_400_with_metadata(self):
-        self._metadata_setup()
-        self.test_router_remove_interface_wrong_subnet_returns_400()
-        self._metadata_teardown()
-
-    def test_router_delete_with_metadata_access(self):
-        self._metadata_setup()
-        self.test_router_delete()
-        self._metadata_teardown()
-
-    def test_router_delete_with_port_existed_returns_409_with_metadata(self):
-        self._metadata_setup()
-        self.test_router_delete_with_port_existed_returns_409()
-        self._metadata_teardown()
-
-    def test_metadatata_network_created_with_router_interface_add(self):
-        self._metadata_setup()
-        with mock.patch.object(self._plugin_class, 'schedule_network') as f:
-            with self.router() as r:
-                with self.subnet() as s:
-                    self._router_interface_action('add',
-                                                  r['router']['id'],
-                                                  s['subnet']['id'],
-                                                  None)
-                    r_ports = self._list('ports')['ports']
-                    self.assertEqual(len(r_ports), 2)
-                    ips = []
-                    for port in r_ports:
-                        ips.extend([netaddr.IPAddress(fixed_ip['ip_address'])
-                                    for fixed_ip in port['fixed_ips']])
-                    meta_cidr = netaddr.IPNetwork('169.254.0.0/16')
-                    self.assertTrue(any([ip in meta_cidr for ip in ips]))
-                    # Needed to avoid 409
-                    self._router_interface_action('remove',
-                                                  r['router']['id'],
-                                                  s['subnet']['id'],
-                                                  None)
-            # Verify that the metadata network gets scheduled, so that
-            # an active dhcp agent can pick it up
-            expected_meta_net = {
-                'status': 'ACTIVE',
-                'subnets': [],
-                'name': 'meta-%s' % r['router']['id'],
-                'admin_state_up': True,
-                'tenant_id': '',
-                'port_security_enabled': False,
-                'shared': False,
-                'id': mock.ANY,
-                'mtu': mock.ANY
-            }
-            f.assert_any_call(mock.ANY, expected_meta_net)
-        self._metadata_teardown()
-
-    def test_metadata_network_create_rollback_on_create_subnet_failure(self):
-        self._metadata_setup()
-        with self.router() as r:
-            with self.subnet() as s:
-                # Raise a NeutronException (eg: NotFound)
-                with mock.patch.object(self._plugin_class,
-                                       'create_subnet',
-                                       side_effect=ntn_exc.NotFound):
-                    self._router_interface_action(
-                        'add', r['router']['id'], s['subnet']['id'], None)
-                # Ensure metadata network was removed
-                nets = self._list('networks')['networks']
-                self.assertEqual(len(nets), 1)
-                # Needed to avoid 409
-                self._router_interface_action('remove',
-                                              r['router']['id'],
-                                              s['subnet']['id'],
-                                              None)
-        self._metadata_teardown()
-
-    def test_metadata_network_create_rollback_on_add_rtr_iface_failure(self):
-        self._metadata_setup()
-        with self.router() as r:
-            with self.subnet() as s:
-                # Raise a NeutronException when adding metadata subnet
-                # to router
-                # save function being mocked
-                real_func = self._plugin_class.add_router_interface
-                plugin_instance = manager.NeutronManager.get_plugin()
-
-                def side_effect(*args):
-                    if args[-1]['subnet_id'] == s['subnet']['id']:
-                        # do the real thing
-                        return real_func(plugin_instance, *args)
-                    # otherwise raise
-                    raise api_exc.NsxApiException()
-
-                with mock.patch.object(self._plugin_class,
-                                       'add_router_interface',
-                                       side_effect=side_effect):
-                    self._router_interface_action(
-                        'add', r['router']['id'], s['subnet']['id'], None)
-                # Ensure metadata network was removed
-                nets = self._list('networks')['networks']
-                self.assertEqual(len(nets), 1)
-                # Needed to avoid 409
-                self._router_interface_action('remove',
-                                              r['router']['id'],
-                                              s['subnet']['id'],
-                                              None)
-        self._metadata_teardown()
-
-    def test_metadata_network_removed_with_router_interface_remove(self):
-        self._metadata_setup()
-        with self.router() as r:
-            with self.subnet() as s:
-                self._router_interface_action('add', r['router']['id'],
-                                              s['subnet']['id'], None)
-                subnets = self._list('subnets')['subnets']
-                self.assertEqual(len(subnets), 2)
-                meta_cidr = netaddr.IPNetwork('169.254.0.0/16')
-                for subnet in subnets:
-                    cidr = netaddr.IPNetwork(subnet['cidr'])
-                    if meta_cidr == cidr or meta_cidr in cidr.supernet(16):
-                        meta_sub_id = subnet['id']
-                        meta_net_id = subnet['network_id']
-                ports = self._list(
-                    'ports',
-                    query_params='network_id=%s' % meta_net_id)['ports']
-                self.assertEqual(len(ports), 1)
-                meta_port_id = ports[0]['id']
-                self._router_interface_action('remove', r['router']['id'],
-                                              s['subnet']['id'], None)
-                self._show('networks', meta_net_id,
-                           webob.exc.HTTPNotFound.code)
-                self._show('ports', meta_port_id,
-                           webob.exc.HTTPNotFound.code)
-                self._show('subnets', meta_sub_id,
-                           webob.exc.HTTPNotFound.code)
-        self._metadata_teardown()
-
-    def test_metadata_network_remove_rollback_on_failure(self):
-        self._metadata_setup()
-        with self.router() as r:
-            with self.subnet() as s:
-                self._router_interface_action('add', r['router']['id'],
-                                              s['subnet']['id'], None)
-                networks = self._list('networks')['networks']
-                for network in networks:
-                    if network['id'] != s['subnet']['network_id']:
-                        meta_net_id = network['id']
-                ports = self._list(
-                    'ports',
-                    query_params='network_id=%s' % meta_net_id)['ports']
-                meta_port_id = ports[0]['id']
-                # Raise a NeutronException when removing
-                # metadata subnet from router
-                # save function being mocked
-                real_func = self._plugin_class.remove_router_interface
-                plugin_instance = manager.NeutronManager.get_plugin()
-
-                def side_effect(*args):
-                    if args[-1].get('subnet_id') == s['subnet']['id']:
-                        # do the real thing
-                        return real_func(plugin_instance, *args)
-                    # otherwise raise
-                    raise api_exc.NsxApiException()
-
-                with mock.patch.object(self._plugin_class,
-                                       'remove_router_interface',
-                                       side_effect=side_effect):
-                    self._router_interface_action('remove', r['router']['id'],
-                                                  s['subnet']['id'], None)
-                # Metadata network and subnet should still be there
-                self._show('networks', meta_net_id,
-                           webob.exc.HTTPOk.code)
-                self._show('ports', meta_port_id,
-                           webob.exc.HTTPOk.code)
-        self._metadata_teardown()
-
-    def test_metadata_dhcp_host_route(self):
-        cfg.CONF.set_override('metadata_mode', 'dhcp_host_route', 'NSX')
-        subnets = self._list('subnets')['subnets']
-        with self.subnet() as s:
-            with self.port(subnet=s, device_id='1234',
-                           device_owner=constants.DEVICE_OWNER_DHCP) as port:
-                subnets = self._list('subnets')['subnets']
-                self.assertEqual(len(subnets), 1)
-                self.assertEqual(subnets[0]['host_routes'][0]['nexthop'],
-                                 '10.0.0.2')
-                self.assertEqual(subnets[0]['host_routes'][0]['destination'],
-                                 '169.254.169.254/32')
-            self._delete('ports', port['port']['id'])
-            subnets = self._list('subnets')['subnets']
-            # Test that route is deleted after dhcp port is removed
-            self.assertEqual(len(subnets[0]['host_routes']), 0)
-
     def _test_floatingip_update(self, expected_status):
         super(TestL3NatTestCase, self).test_floatingip_update(
             expected_status)

vmware_nsx/tests/unit/nsx_v3/test_plugin.py

@@ -45,6 +45,7 @@ from vmware_nsx.nsxlib.v3 import client as nsx_client
 from vmware_nsx.nsxlib.v3 import cluster as nsx_cluster
 from vmware_nsx.plugins.nsx_v3 import plugin as nsx_plugin
 from vmware_nsx.tests import unit as vmware
+from vmware_nsx.tests.unit.extensions import test_metadata
 from vmware_nsx.tests.unit.nsx_v3 import mocks as nsx_v3_mocks
 from vmware_nsx.tests.unit.nsxlib.v3 import nsxlib_testcase
 
@@ -257,12 +258,14 @@ class L3NatTest(test_l3_plugin.L3BaseForIntTests, NsxV3PluginTestCaseMixin):
 
 class TestL3NatTestCase(L3NatTest,
                         test_l3_plugin.L3NatDBIntTestCase,
-                        test_ext_route.ExtraRouteDBTestCaseBase):
+                        test_ext_route.ExtraRouteDBTestCaseBase,
+                        test_metadata.MetaDataTestCase):
 
     def setUp(self, plugin=PLUGIN_NAME,
               ext_mgr=None,
               service_plugins=None):
         super(TestL3NatTestCase, self).setUp(plugin=plugin, ext_mgr=ext_mgr)
+        cfg.CONF.set_override('metadata_mode', None, 'NSX')
 
     def _test_create_l3_ext_network(
             self, physical_network=nsx_v3_mocks.DEFAULT_TIER0_ROUTER_UUID):