538 lines
23 KiB
Python
538 lines
23 KiB
Python
# Copyright (C) 2014 eNovance SAS <licensing@enovance.com>
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import datetime
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import mock
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from oslo_config import cfg
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from oslo_utils import timeutils
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from oslo_utils import uuidutils
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from neutron.api.v2 import attributes
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from neutron.common import constants
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from neutron import context
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from neutron.db import agents_db
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from neutron.db import common_db_mixin
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from neutron.db import l3_agentschedulers_db
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from neutron.db import l3_hamode_db
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from neutron.extensions import l3
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from neutron.extensions import l3_ext_ha_mode
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from neutron import manager
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from neutron.scheduler import l3_agent_scheduler
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from neutron.tests.common import helpers
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from neutron.tests.unit import testlib_api
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_uuid = uuidutils.generate_uuid
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class FakeL3PluginWithAgents(common_db_mixin.CommonDbMixin,
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l3_hamode_db.L3_HA_NAT_db_mixin,
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l3_agentschedulers_db.L3AgentSchedulerDbMixin,
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agents_db.AgentDbMixin):
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pass
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class L3HATestFramework(testlib_api.SqlTestCase):
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def setUp(self):
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super(L3HATestFramework, self).setUp()
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self.admin_ctx = context.get_admin_context()
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self.setup_coreplugin('neutron.plugins.ml2.plugin.Ml2Plugin')
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self.core_plugin = manager.NeutronManager.get_plugin()
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notif_p = mock.patch.object(l3_hamode_db.L3_HA_NAT_db_mixin,
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'_notify_ha_interfaces_updated')
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self.notif_m = notif_p.start()
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cfg.CONF.set_override('allow_overlapping_ips', True)
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self.plugin = FakeL3PluginWithAgents()
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self.agent1 = helpers.register_l3_agent()
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self.agent2 = helpers.register_l3_agent(
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'host_2', constants.L3_AGENT_MODE_DVR_SNAT)
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def _bring_down_agent(self, agent_id):
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update = {
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'agent': {
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'heartbeat_timestamp':
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timeutils.utcnow() - datetime.timedelta(hours=1)}}
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self.plugin.update_agent(self.admin_ctx, agent_id, update)
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def _create_router(self, ha=True, tenant_id='tenant1', distributed=None,
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ctx=None):
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if ctx is None:
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ctx = self.admin_ctx
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ctx.tenant_id = tenant_id
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router = {'name': 'router1', 'admin_state_up': True}
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if ha is not None:
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router['ha'] = ha
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if distributed is not None:
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router['distributed'] = distributed
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return self.plugin.create_router(ctx, {'router': router})
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def _update_router(self, router_id, ha=True, distributed=None, ctx=None):
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if ctx is None:
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ctx = self.admin_ctx
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data = {'ha': ha} if ha is not None else {}
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if distributed is not None:
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data['distributed'] = distributed
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return self.plugin._update_router_db(ctx, router_id,
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data, None)
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def _bind_router(self, router_id):
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with self.admin_ctx.session.begin(subtransactions=True):
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scheduler = l3_agent_scheduler.ChanceScheduler()
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agents_db = self.plugin.get_agents_db(self.admin_ctx)
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scheduler._bind_ha_router_to_agents(
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self.plugin,
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self.admin_ctx,
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router_id,
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agents_db)
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class L3HATestCase(L3HATestFramework):
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def test_verify_configuration_succeed(self):
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# Default configuration should pass
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self.plugin._verify_configuration()
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def test_verify_configuration_l3_ha_net_cidr_is_not_a_cidr(self):
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cfg.CONF.set_override('l3_ha_net_cidr', 'not a cidr')
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self.assertRaises(
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l3_ext_ha_mode.HANetworkCIDRNotValid,
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self.plugin._verify_configuration)
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def test_verify_configuration_l3_ha_net_cidr_is_not_a_subnet(self):
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cfg.CONF.set_override('l3_ha_net_cidr', '10.0.0.1/8')
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self.assertRaises(
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l3_ext_ha_mode.HANetworkCIDRNotValid,
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self.plugin._verify_configuration)
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def test_verify_configuration_min_l3_agents_per_router_below_minimum(self):
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cfg.CONF.set_override('min_l3_agents_per_router', 0)
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self.assertRaises(
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l3_ext_ha_mode.HAMinimumAgentsNumberNotValid,
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self.plugin._check_num_agents_per_router)
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def test_verify_configuration_max_l3_agents_below_min_l3_agents(self):
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cfg.CONF.set_override('max_l3_agents_per_router', 3)
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cfg.CONF.set_override('min_l3_agents_per_router', 4)
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self.assertRaises(
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l3_ext_ha_mode.HAMaximumAgentsNumberNotValid,
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self.plugin._check_num_agents_per_router)
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def test_verify_configuration_max_l3_agents_unlimited(self):
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cfg.CONF.set_override('max_l3_agents_per_router',
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l3_hamode_db.UNLIMITED_AGENTS_PER_ROUTER)
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self.plugin._check_num_agents_per_router()
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def test_get_ha_router_port_bindings(self):
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router = self._create_router()
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self._bind_router(router['id'])
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bindings = self.plugin.get_ha_router_port_bindings(
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self.admin_ctx, [router['id']])
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binding_dicts = [{'router_id': binding['router_id'],
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'l3_agent_id': binding['l3_agent_id']}
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for binding in bindings]
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self.assertIn({'router_id': router['id'],
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'l3_agent_id': self.agent1['id']}, binding_dicts)
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self.assertIn({'router_id': router['id'],
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'l3_agent_id': self.agent2['id']}, binding_dicts)
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def test_get_l3_bindings_hosting_router_with_ha_states_ha_router(self):
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router = self._create_router()
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self._bind_router(router['id'])
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self.plugin.update_routers_states(
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self.admin_ctx, {router['id']: 'active'}, self.agent1['host'])
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bindings = self.plugin.get_l3_bindings_hosting_router_with_ha_states(
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self.admin_ctx, router['id'])
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agent_ids = [(agent[0]['id'], agent[1]) for agent in bindings]
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self.assertIn((self.agent1['id'], 'active'), agent_ids)
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self.assertIn((self.agent2['id'], 'standby'), agent_ids)
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def test_get_l3_bindings_hosting_router_with_ha_states_not_scheduled(self):
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router = self._create_router(ha=False)
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bindings = self.plugin.get_l3_bindings_hosting_router_with_ha_states(
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self.admin_ctx, router['id'])
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self.assertEqual([], bindings)
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def test_ha_router_create(self):
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router = self._create_router()
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self.assertTrue(router['ha'])
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def test_ha_router_create_with_distributed(self):
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self.assertRaises(l3_ext_ha_mode.DistributedHARouterNotSupported,
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self._create_router,
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distributed=True)
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def test_no_ha_router_create(self):
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router = self._create_router(ha=False)
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self.assertFalse(router['ha'])
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def test_router_create_with_ha_conf_enabled(self):
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cfg.CONF.set_override('l3_ha', True)
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router = self._create_router(ha=None)
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self.assertTrue(router['ha'])
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def test_migration_from_ha(self):
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router = self._create_router()
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self.assertTrue(router['ha'])
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router = self._update_router(router['id'], ha=False)
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self.assertFalse(router.extra_attributes['ha'])
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self.assertIsNone(router.extra_attributes['ha_vr_id'])
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def test_migration_to_ha(self):
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router = self._create_router(ha=False)
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self.assertFalse(router['ha'])
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router = self._update_router(router['id'], ha=True)
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self.assertTrue(router.extra_attributes['ha'])
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self.assertIsNotNone(router.extra_attributes['ha_vr_id'])
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def test_migrate_ha_router_to_distributed(self):
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router = self._create_router()
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self.assertTrue(router['ha'])
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self.assertRaises(l3_ext_ha_mode.DistributedHARouterNotSupported,
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self._update_router,
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router['id'],
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distributed=True)
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def test_l3_agent_routers_query_interface(self):
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router = self._create_router()
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self._bind_router(router['id'])
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routers = self.plugin.get_ha_sync_data_for_host(self.admin_ctx,
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self.agent1['host'])
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self.assertEqual(1, len(routers))
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router = routers[0]
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self.assertIsNotNone(router.get('ha'))
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interface = router.get(constants.HA_INTERFACE_KEY)
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self.assertIsNotNone(interface)
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self.assertEqual(constants.DEVICE_OWNER_ROUTER_HA_INTF,
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interface['device_owner'])
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subnets = interface['subnets']
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self.assertEqual(1, len(subnets))
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self.assertEqual(cfg.CONF.l3_ha_net_cidr, subnets[0]['cidr'])
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def test_unique_ha_network_per_tenant(self):
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tenant1 = _uuid()
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tenant2 = _uuid()
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self._create_router(tenant_id=tenant1)
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self._create_router(tenant_id=tenant2)
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ha_network1 = self.plugin.get_ha_network(self.admin_ctx, tenant1)
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ha_network2 = self.plugin.get_ha_network(self.admin_ctx, tenant2)
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self.assertNotEqual(
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ha_network1['network_id'], ha_network2['network_id'])
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def _deployed_router_change_ha_flag(self, to_ha):
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self._create_router(ha=not to_ha)
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routers = self.plugin.get_ha_sync_data_for_host(self.admin_ctx)
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router = routers[0]
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interface = router.get(constants.HA_INTERFACE_KEY)
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if to_ha:
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self.assertIsNone(interface)
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else:
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self.assertIsNotNone(interface)
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self._update_router(router['id'], to_ha)
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routers = self.plugin.get_ha_sync_data_for_host(self.admin_ctx)
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router = routers[0]
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interface = router.get(constants.HA_INTERFACE_KEY)
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if to_ha:
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self.assertIsNotNone(interface)
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else:
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self.assertIsNone(interface)
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def test_deployed_router_can_have_ha_enabled(self):
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self._deployed_router_change_ha_flag(to_ha=True)
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def test_deployed_router_can_have_ha_disabled(self):
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self._deployed_router_change_ha_flag(to_ha=False)
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def test_create_ha_router_notifies_agent(self):
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self._create_router()
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self.assertTrue(self.notif_m.called)
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def test_update_router_to_ha_notifies_agent(self):
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router = self._create_router(ha=False)
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self.notif_m.reset_mock()
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self._update_router(router['id'], ha=True)
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self.assertTrue(self.notif_m.called)
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def test_unique_vr_id_between_routers(self):
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self._create_router()
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self._create_router()
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routers = self.plugin.get_ha_sync_data_for_host(self.admin_ctx)
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self.assertEqual(2, len(routers))
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self.assertNotEqual(routers[0]['ha_vr_id'], routers[1]['ha_vr_id'])
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@mock.patch('neutron.db.l3_hamode_db.VR_ID_RANGE', new=set(range(1, 1)))
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def test_vr_id_depleted(self):
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self.assertRaises(l3_ext_ha_mode.NoVRIDAvailable, self._create_router)
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@mock.patch('neutron.db.l3_hamode_db.VR_ID_RANGE', new=set(range(1, 2)))
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def test_vr_id_unique_range_per_tenant(self):
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self._create_router()
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self._create_router(tenant_id=_uuid())
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routers = self.plugin.get_ha_sync_data_for_host(self.admin_ctx)
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self.assertEqual(2, len(routers))
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self.assertEqual(routers[0]['ha_vr_id'], routers[1]['ha_vr_id'])
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@mock.patch('neutron.db.l3_hamode_db.MAX_ALLOCATION_TRIES', new=2)
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def test_vr_id_allocation_contraint_conflict(self):
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router = self._create_router()
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network = self.plugin.get_ha_network(self.admin_ctx,
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router['tenant_id'])
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with mock.patch.object(self.plugin, '_get_allocated_vr_id',
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return_value=set()) as alloc:
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self.assertRaises(l3_ext_ha_mode.MaxVRIDAllocationTriesReached,
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self.plugin._allocate_vr_id, self.admin_ctx,
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network.network_id, router['id'])
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self.assertEqual(2, len(alloc.mock_calls))
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def test_vr_id_allocation_delete_router(self):
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router = self._create_router()
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network = self.plugin.get_ha_network(self.admin_ctx,
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router['tenant_id'])
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allocs_before = self.plugin._get_allocated_vr_id(self.admin_ctx,
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network.network_id)
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router = self._create_router()
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allocs_current = self.plugin._get_allocated_vr_id(self.admin_ctx,
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network.network_id)
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self.assertNotEqual(allocs_before, allocs_current)
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self.plugin.delete_router(self.admin_ctx, router['id'])
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allocs_after = self.plugin._get_allocated_vr_id(self.admin_ctx,
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network.network_id)
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self.assertEqual(allocs_before, allocs_after)
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def test_vr_id_allocation_router_migration(self):
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router = self._create_router()
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network = self.plugin.get_ha_network(self.admin_ctx,
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router['tenant_id'])
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allocs_before = self.plugin._get_allocated_vr_id(self.admin_ctx,
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network.network_id)
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router = self._create_router()
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self._update_router(router['id'], ha=False)
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allocs_after = self.plugin._get_allocated_vr_id(self.admin_ctx,
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network.network_id)
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self.assertEqual(allocs_before, allocs_after)
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def test_one_ha_router_one_not(self):
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self._create_router(ha=False)
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self._create_router()
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routers = self.plugin.get_ha_sync_data_for_host(self.admin_ctx)
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ha0 = routers[0]['ha']
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ha1 = routers[1]['ha']
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self.assertNotEqual(ha0, ha1)
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def test_add_ha_port_binding_failure_rolls_back_port(self):
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router = self._create_router()
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device_filter = {'device_id': [router['id']]}
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ports_before = self.core_plugin.get_ports(
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self.admin_ctx, filters=device_filter)
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network = self.plugin.get_ha_network(self.admin_ctx,
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router['tenant_id'])
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with mock.patch.object(self.plugin, '_create_ha_port_binding',
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side_effect=ValueError):
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self.assertRaises(ValueError, self.plugin.add_ha_port,
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self.admin_ctx, router['id'], network.network_id,
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router['tenant_id'])
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ports_after = self.core_plugin.get_ports(
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self.admin_ctx, filters=device_filter)
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self.assertEqual(ports_before, ports_after)
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def test_create_ha_network_binding_failure_rolls_back_network(self):
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networks_before = self.core_plugin.get_networks(self.admin_ctx)
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with mock.patch.object(self.plugin,
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'_create_ha_network_tenant_binding',
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side_effect=ValueError):
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self.assertRaises(ValueError, self.plugin._create_ha_network,
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self.admin_ctx, _uuid())
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networks_after = self.core_plugin.get_networks(self.admin_ctx)
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self.assertEqual(networks_before, networks_after)
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def test_create_ha_network_subnet_failure_rolls_back_network(self):
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networks_before = self.core_plugin.get_networks(self.admin_ctx)
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with mock.patch.object(self.plugin, '_create_ha_subnet',
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side_effect=ValueError):
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self.assertRaises(ValueError, self.plugin._create_ha_network,
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self.admin_ctx, _uuid())
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networks_after = self.core_plugin.get_networks(self.admin_ctx)
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self.assertEqual(networks_before, networks_after)
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def test_create_ha_interfaces_binding_failure_rolls_back_ports(self):
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router = self._create_router()
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network = self.plugin.get_ha_network(self.admin_ctx,
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router['tenant_id'])
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device_filter = {'device_id': [router['id']]}
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ports_before = self.core_plugin.get_ports(
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self.admin_ctx, filters=device_filter)
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router_db = self.plugin._get_router(self.admin_ctx, router['id'])
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with mock.patch.object(self.plugin, '_create_ha_port_binding',
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side_effect=ValueError):
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self.assertRaises(ValueError, self.plugin._create_ha_interfaces,
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self.admin_ctx, router_db, network)
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ports_after = self.core_plugin.get_ports(
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self.admin_ctx, filters=device_filter)
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self.assertEqual(ports_before, ports_after)
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def test_create_router_db_ha_attribute_failure_rolls_back_router(self):
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routers_before = self.plugin.get_routers(self.admin_ctx)
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for method in ('_set_vr_id',
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'_create_ha_interfaces',
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'_notify_ha_interfaces_updated'):
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with mock.patch.object(self.plugin, method,
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side_effect=ValueError):
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self.assertRaises(ValueError, self._create_router)
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routers_after = self.plugin.get_routers(self.admin_ctx)
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self.assertEqual(routers_before, routers_after)
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def test_update_routers_states(self):
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router1 = self._create_router()
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self._bind_router(router1['id'])
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router2 = self._create_router()
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self._bind_router(router2['id'])
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routers = self.plugin.get_ha_sync_data_for_host(self.admin_ctx,
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self.agent1['host'])
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for router in routers:
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self.assertEqual('standby', router[constants.HA_ROUTER_STATE_KEY])
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states = {router1['id']: 'active',
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router2['id']: 'standby'}
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self.plugin.update_routers_states(
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self.admin_ctx, states, self.agent1['host'])
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|
|
routers = self.plugin.get_ha_sync_data_for_host(self.admin_ctx,
|
|
self.agent1['host'])
|
|
for router in routers:
|
|
self.assertEqual(states[router['id']],
|
|
router[constants.HA_ROUTER_STATE_KEY])
|
|
|
|
def test_set_router_states_handles_concurrently_deleted_router(self):
|
|
router1 = self._create_router()
|
|
self._bind_router(router1['id'])
|
|
router2 = self._create_router()
|
|
self._bind_router(router2['id'])
|
|
bindings = self.plugin.get_ha_router_port_bindings(
|
|
self.admin_ctx, [router1['id'], router2['id']])
|
|
self.plugin.delete_router(self.admin_ctx, router1['id'])
|
|
self.plugin._set_router_states(
|
|
self.admin_ctx, bindings, {router1['id']: 'active',
|
|
router2['id']: 'active'})
|
|
routers = self.plugin.get_ha_sync_data_for_host(self.admin_ctx,
|
|
self.agent1['host'])
|
|
self.assertEqual('active', routers[0][constants.HA_ROUTER_STATE_KEY])
|
|
|
|
def test_exclude_dvr_agents_for_ha_candidates(self):
|
|
"""Test dvr agents are not counted in the ha candidates.
|
|
|
|
This test case tests that when get_number_of_agents_for_scheduling
|
|
is called, it doesn't count dvr agents.
|
|
"""
|
|
# Test setup registers two l3 agents.
|
|
# Register another l3 agent with dvr mode and assert that
|
|
# get_number_of_ha_agent_candidates return 2.
|
|
helpers.register_l3_agent('host_3', constants.L3_AGENT_MODE_DVR)
|
|
num_ha_candidates = self.plugin.get_number_of_agents_for_scheduling(
|
|
self.admin_ctx)
|
|
self.assertEqual(2, num_ha_candidates)
|
|
|
|
def test_get_number_of_agents_for_scheduling_not_enough_agents(self):
|
|
cfg.CONF.set_override('min_l3_agents_per_router', 3)
|
|
agent_to_bring_down = helpers.register_l3_agent(host='l3host_3')
|
|
self._bring_down_agent(agent_to_bring_down['id'])
|
|
self.assertRaises(l3_ext_ha_mode.HANotEnoughAvailableAgents,
|
|
self.plugin.get_number_of_agents_for_scheduling,
|
|
self.admin_ctx)
|
|
|
|
|
|
class L3HAModeDbTestCase(L3HATestFramework):
|
|
|
|
def _create_network(self, plugin, ctx, name='net',
|
|
tenant_id='tenant1'):
|
|
network = {'network': {'name': name,
|
|
'shared': False,
|
|
'admin_state_up': True,
|
|
'tenant_id': tenant_id}}
|
|
return plugin.create_network(ctx, network)['id']
|
|
|
|
def _create_subnet(self, plugin, ctx, network_id, cidr='10.0.0.0/8',
|
|
name='subnet', tenant_id='tenant1'):
|
|
subnet = {'subnet': {'name': name,
|
|
'ip_version': 4,
|
|
'network_id': network_id,
|
|
'cidr': cidr,
|
|
'gateway_ip': attributes.ATTR_NOT_SPECIFIED,
|
|
'allocation_pools': attributes.ATTR_NOT_SPECIFIED,
|
|
'dns_nameservers': attributes.ATTR_NOT_SPECIFIED,
|
|
'host_routes': attributes.ATTR_NOT_SPECIFIED,
|
|
'tenant_id': tenant_id,
|
|
'enable_dhcp': True,
|
|
'ipv6_ra_mode': attributes.ATTR_NOT_SPECIFIED}}
|
|
created_subnet = plugin.create_subnet(ctx, subnet)
|
|
return created_subnet
|
|
|
|
def test_remove_ha_in_use(self):
|
|
router = self._create_router(ctx=self.admin_ctx)
|
|
network_id = self._create_network(self.core_plugin, self.admin_ctx)
|
|
subnet = self._create_subnet(self.core_plugin, self.admin_ctx,
|
|
network_id)
|
|
interface_info = {'subnet_id': subnet['id']}
|
|
self.plugin.add_router_interface(self.admin_ctx,
|
|
router['id'],
|
|
interface_info)
|
|
self.assertRaises(l3.RouterInUse, self.plugin.delete_router,
|
|
self.admin_ctx, router['id'])
|
|
bindings = self.plugin.get_ha_router_port_bindings(
|
|
self.admin_ctx, [router['id']])
|
|
self.assertEqual(2, len(bindings))
|
|
|
|
|
|
class L3HAUserTestCase(L3HATestFramework):
|
|
|
|
def setUp(self):
|
|
super(L3HAUserTestCase, self).setUp()
|
|
self.user_ctx = context.Context('', _uuid())
|
|
|
|
def test_create_ha_router(self):
|
|
self._create_router(ctx=self.user_ctx)
|
|
|
|
def test_update_router(self):
|
|
router = self._create_router(ctx=self.user_ctx)
|
|
self._update_router(router['id'], ha=False, ctx=self.user_ctx)
|
|
|
|
def test_delete_router(self):
|
|
router = self._create_router(ctx=self.user_ctx)
|
|
self.plugin.delete_router(self.user_ctx, router['id'])
|