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test_l3_agent_scheduler.py
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test_l3_agent_scheduler.py
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# Copyright (c) 2013 OpenStack Foundation
# 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 collections
import contextlib
import datetime
import secrets
from unittest import mock
from neutron_lib.api import attributes
from neutron_lib.api.definitions import l3_ext_ha_mode
from neutron_lib.api.definitions import network_ha
from neutron_lib.api.definitions import portbindings
from neutron_lib.api.definitions import router_availability_zone
from neutron_lib.callbacks import events
from neutron_lib.callbacks import resources
from neutron_lib import constants
from neutron_lib import context as n_context
from neutron_lib.exceptions import l3 as l3_exc
from neutron_lib import fixture
from neutron_lib.plugins import constants as plugin_constants
from neutron_lib.plugins import directory
from neutron_lib import rpc as n_rpc
from oslo_config import cfg
from oslo_utils import importutils
from oslo_utils import timeutils
from oslo_utils import uuidutils
from sqlalchemy import orm
import testscenarios
import testtools
from neutron.db import db_base_plugin_v2 as db_v2
from neutron.db import l3_db
from neutron.db import l3_dvr_db
from neutron.db import l3_dvr_ha_scheduler_db
from neutron.db import l3_dvrscheduler_db
from neutron.db import l3_hamode_db
from neutron.db import l3_hascheduler_db
from neutron.extensions import l3agentscheduler as l3agent
from neutron import manager
from neutron.objects import agent as agent_obj
from neutron.objects import l3_hamode
from neutron.objects import l3agent as rb_obj
from neutron import quota
from neutron.scheduler import l3_agent_scheduler
from neutron.tests import base
from neutron.tests.common import helpers
from neutron.tests.unit.db import test_db_base_plugin_v2
from neutron.tests.unit.extensions import test_l3
from neutron.tests.unit import testlib_api
# the below code is required for the following reason
# (as documented in testscenarios)
# Multiply tests depending on their 'scenarios' attribute.
# This can be assigned to 'load_tests' in any test module to make this
# automatically work across tests in the module.
load_tests = testscenarios.load_tests_apply_scenarios
HOST_DVR = 'my_l3_host_dvr'
HOST_DVR_SNAT = 'my_l3_host_dvr_snat'
DEVICE_OWNER_COMPUTE = constants.DEVICE_OWNER_COMPUTE_PREFIX + 'fake'
DEVICE_OWNER_COMPUTE_NOVA = constants.DEVICE_OWNER_COMPUTE_PREFIX + 'nova'
class FakeL3Scheduler(l3_agent_scheduler.L3Scheduler):
def schedule(self):
pass
def _choose_router_agent(self):
pass
def _choose_router_agents_for_ha(self):
pass
class FakePortDB(object):
def __init__(self, port_list):
self._port_list = port_list
def _get_query_answer(self, port_list, filters):
answers = []
for port in port_list:
matched = True
for key, search_values in filters.items():
port_value = port.get(key, None)
if not port_value:
matched = False
break
if isinstance(port_value, list):
sub_answers = self._get_query_answer(port_value,
search_values)
matched = len(sub_answers) > 0
else:
matched = port_value in search_values
if not matched:
break
if matched:
answers.append(port)
return answers
def get_port(self, context, port_id):
for port in self._port_list:
if port['id'] == port_id:
if port['tenant_id'] == context.tenant_id or context.is_admin:
return port
break
return None
def get_ports(self, context, filters=None):
query_filters = dict()
if filters:
query_filters.update(filters)
if not context.is_admin:
query_filters['tenant_id'] = [context.tenant_id]
result = self._get_query_answer(self._port_list, query_filters)
return result
class L3SchedulerBaseTestCase(base.BaseTestCase):
def setUp(self):
super(L3SchedulerBaseTestCase, self).setUp()
self.scheduler = FakeL3Scheduler()
self.plugin = mock.Mock()
def _test__get_routers_can_schedule(self, routers, agent, target_routers):
self.plugin.get_l3_agent_candidates.return_value = agent
result = self.scheduler._get_routers_can_schedule(
self.plugin, mock.ANY, routers, mock.ANY)
self.assertEqual(target_routers, result)
def test__get_routers_can_schedule_with_compat_agent(self):
routers = [{'id': 'foo_router'}]
self._test__get_routers_can_schedule(routers, mock.ANY, routers)
def test__get_routers_can_schedule_with_no_compat_agent(self):
routers = [{'id': 'foo_router'}]
self._test__get_routers_can_schedule(routers, None, [])
def test__get_candidates_iterable_on_early_returns(self):
plugin = mock.MagicMock()
# non-distributed router already hosted
plugin.get_l3_agents_hosting_routers.return_value = [{'id': 'a1'}]
router = {'distributed': False, 'id': 'falafel'}
iter(self.scheduler._get_candidates(plugin, mock.MagicMock(), router))
# distributed router but no agents
router['distributed'] = True
plugin.get_l3_agents.return_value = []
iter(self.scheduler._get_candidates(plugin, mock.MagicMock(), router))
self.assertFalse(plugin.get_l3_agent_candidates.called)
def test__get_candidates_skips_get_l3_agent_candidates_if_dvr_scheduled(
self):
plugin = mock.MagicMock()
# distributed router already hosted
plugin.get_l3_agents_hosting_routers.return_value = [{'id': 'a1'}]
router = {'distributed': True, 'id': uuidutils.generate_uuid()}
plugin.get_l3_agents.return_value = ['a1']
self.scheduler._get_candidates(plugin, mock.MagicMock(), router)
self.assertFalse(plugin.get_l3_agent_candidates.called)
class L3SchedulerBaseMixin(object):
def _register_l3_agents(self, plugin=None):
self.agent1 = helpers.register_l3_agent(
'host_1', constants.L3_AGENT_MODE_LEGACY)
self.agent_id1 = self.agent1.id
self.agent2 = helpers.register_l3_agent(
'host_2', constants.L3_AGENT_MODE_LEGACY)
self.agent_id2 = self.agent2.id
def _register_l3_dvr_agents(self):
self.l3_dvr_agent = helpers.register_l3_agent(
HOST_DVR, constants.L3_AGENT_MODE_DVR)
self.l3_dvr_agent_id = self.l3_dvr_agent.id
self.l3_dvr_snat_agent = helpers.register_l3_agent(
HOST_DVR_SNAT, constants.L3_AGENT_MODE_DVR_SNAT)
self.l3_dvr_snat_id = self.l3_dvr_snat_agent.id
def _set_l3_agent_admin_state(self, context, agent_id, state=True):
update = {'agent': {'admin_state_up': state}}
self.plugin.update_agent(context, agent_id, update)
def _set_l3_agent_dead(self, agent_id):
update = {
'agent': {
'heartbeat_timestamp':
timeutils.utcnow() - datetime.timedelta(hours=1)}}
self.plugin.update_agent(self.adminContext, agent_id, update)
@contextlib.contextmanager
def router_with_ext_gw(self, name='router1', admin_state_up=True,
fmt=None, tenant_id=None,
external_gateway_info=None,
subnet=None, **kwargs):
tenant_id = tenant_id or self._tenant_id
router = self._make_router(fmt or self.fmt, tenant_id, name,
admin_state_up, external_gateway_info,
**kwargs)
self._add_external_gateway_to_router(
router['router']['id'],
subnet['subnet']['network_id'])
yield router
self._remove_external_gateway_from_router(
router['router']['id'], subnet['subnet']['network_id'])
self._delete('routers', router['router']['id'])
class L3SchedulerTestBaseMixin(object):
def _test_add_router_to_l3_agent(self,
distributed=False,
already_scheduled=False,
external_gw=None):
agent_id = self.agent_id1
agent = self.agent1
if distributed:
self._register_l3_dvr_agents()
agent_id = self.l3_dvr_snat_id
agent = self.l3_dvr_snat_agent
router = self._make_router(self.fmt,
tenant_id=uuidutils.generate_uuid(),
name='r1')
router['router']['distributed'] = distributed
router['router']['external_gateway_info'] = external_gw
if already_scheduled:
self._test_schedule_bind_router(agent, router)
with mock.patch.object(self.plugin,
"validate_agent_router_combination"),\
mock.patch.object(self.plugin,
"create_router_to_agent_binding") as auto_s,\
mock.patch('neutron.db.l3_db.L3_NAT_db_mixin.get_router',
return_value=router['router']):
self.plugin.add_router_to_l3_agent(self.adminContext, agent_id,
router['router']['id'])
self.assertNotEqual(already_scheduled, auto_s.called)
def test__unbind_router_removes_binding(self):
agent_id = self.agent_id1
agent = self.agent1
router = self._make_router(self.fmt,
tenant_id=uuidutils.generate_uuid(),
name='r1')
self._test_schedule_bind_router(agent, router)
self.plugin._unbind_router(self.adminContext,
router['router']['id'],
agent_id)
bindings = rb_obj.RouterL3AgentBinding.get_l3_agents_by_router_ids(
self.adminContext, [router['router']['id']])
self.assertEqual(0, len(bindings))
def _create_router_for_l3_agent_dvr_test(self,
distributed=False,
external_gw=None):
router = self._make_router(self.fmt,
tenant_id=uuidutils.generate_uuid(),
name='r1')
router['router']['distributed'] = distributed
router['router']['external_gateway_info'] = external_gw
return router
def _prepare_l3_agent_dvr_move_exceptions(self,
distributed=False,
external_gw=None,
agent_id=None,
expected_exception=None):
router = self._create_router_for_l3_agent_dvr_test(
distributed=distributed, external_gw=external_gw)
with mock.patch.object(self.plugin, "create_router_to_agent_binding"),\
mock.patch('neutron.db.l3_db.L3_NAT_db_mixin.get_router',
return_value=router['router']):
self.assertRaises(expected_exception,
self.plugin.add_router_to_l3_agent,
self.adminContext, agent_id,
router['router']['id'])
def test__schedule_router_skips_unschedulable_routers(self):
mock.patch.object(self.plugin, 'router_supports_scheduling',
return_value=False).start()
scheduler = l3_agent_scheduler.ChanceScheduler()
self.assertIsNone(scheduler._schedule_router(self.plugin,
self.adminContext,
'router_id'))
def test_add_router_to_l3_agent_mismatch_error_dvr_to_legacy(self):
self._register_l3_agents()
self._prepare_l3_agent_dvr_move_exceptions(
distributed=True,
agent_id=self.agent_id1,
expected_exception=l3agent.RouterL3AgentMismatch)
def test_add_router_to_l3_agent_mismatch_error_legacy_to_dvr(self):
self._register_l3_dvr_agents()
self._prepare_l3_agent_dvr_move_exceptions(
agent_id=self.l3_dvr_agent_id,
expected_exception=l3agent.DVRL3CannotAssignToDvrAgent)
def test_add_router_to_l3_agent_mismatch_error_dvr_to_dvr(self):
self._register_l3_dvr_agents()
self._prepare_l3_agent_dvr_move_exceptions(
distributed=True,
agent_id=self.l3_dvr_agent_id,
expected_exception=l3agent.DVRL3CannotAssignToDvrAgent)
def test_add_router_to_l3_agent_dvr_to_snat(self):
external_gw_info = {
"network_id": uuidutils.generate_uuid(),
"enable_snat": True
}
self._register_l3_dvr_agents()
agent_id = self.l3_dvr_snat_id
router = self._create_router_for_l3_agent_dvr_test(
distributed=True,
external_gw=external_gw_info)
with mock.patch.object(self.plugin,
"validate_agent_router_combination"),\
mock.patch.object(
self.plugin,
"create_router_to_agent_binding") as rtr_agent_binding,\
mock.patch('neutron.db.l3_db.L3_NAT_db_mixin.get_router',
return_value=router['router']):
self.plugin.add_router_to_l3_agent(self.adminContext, agent_id,
router['router']['id'])
rtr_agent_binding.assert_called_once_with(
self.adminContext, mock.ANY, router['router'])
def test_add_router_to_l3_agent(self):
self._test_add_router_to_l3_agent()
def test_add_distributed_router_to_l3_agent(self):
external_gw_info = {
"network_id": uuidutils.generate_uuid(),
"enable_snat": True
}
self._test_add_router_to_l3_agent(distributed=True,
external_gw=external_gw_info)
def test_add_router_to_l3_agent_already_scheduled(self):
self._test_add_router_to_l3_agent(already_scheduled=True)
def test_add_distributed_router_to_l3_agent_already_scheduled(self):
external_gw_info = {
"network_id": uuidutils.generate_uuid(),
"enable_snat": True
}
self._test_add_router_to_l3_agent(distributed=True,
already_scheduled=True,
external_gw=external_gw_info)
def test_remove_router_from_l3_agent_in_dvr_mode(self):
self._register_l3_dvr_agents()
self.assertRaises(l3agent.DVRL3CannotRemoveFromDvrAgent,
self.plugin.remove_router_from_l3_agent,
self.adminContext,
self.l3_dvr_agent_id,
mock.ANY)
def test_remove_router_from_l3_agent_in_dvr_snat_mode(self):
self._register_l3_dvr_agents()
router = self._create_router_for_l3_agent_dvr_test(
distributed=True)
agent_id = self.l3_dvr_snat_id
l3_notifier = mock.Mock()
self.plugin.agent_notifiers = {constants.AGENT_TYPE_L3: l3_notifier}
self.plugin.remove_router_from_l3_agent(self.adminContext, agent_id,
router['router']['id'])
l3_notifier.router_removed_from_agent.assert_called_once_with(
self.adminContext, router['router']['id'],
self.l3_dvr_snat_agent.host)
def _prepare_schedule_dvr_tests(self):
scheduler = l3_agent_scheduler.ChanceScheduler()
agent = agent_obj.Agent(mock.ANY, id=uuidutils.generate_uuid())
agent.admin_state_up = True
agent.heartbeat_timestamp = timeutils.utcnow()
plugin = mock.Mock()
plugin.get_l3_agents_hosting_routers.return_value = []
plugin.get_l3_agents.return_value = [agent]
plugin.get_l3_agent_candidates.return_value = [agent]
return scheduler, agent, plugin
def test_schedule_dvr_router_without_snatbinding_and_no_gw(self):
scheduler, agent, plugin = self._prepare_schedule_dvr_tests()
sync_router = {
'id': 'foo_router_id',
'distributed': True
}
plugin.get_router.return_value = sync_router
with mock.patch.object(scheduler, 'bind_router'),\
mock.patch.object(plugin,
'get_snat_bindings',
return_value=False):
scheduler._schedule_router(
plugin, self.adminContext, 'foo_router_id', None)
expected_calls = [
mock.call.get_router(mock.ANY, 'foo_router_id'),
mock.call.get_l3_agents_hosting_routers(
mock.ANY, ['foo_router_id'], admin_state_up=True),
mock.call.get_l3_agents(mock.ANY, active=True),
mock.call.get_l3_agent_candidates(mock.ANY, sync_router, [agent]),
]
plugin.assert_has_calls(expected_calls)
def test_schedule_router_distributed(self):
scheduler, agent, plugin = self._prepare_schedule_dvr_tests()
sync_router = {
'id': 'foo_router_id',
'distributed': True,
'external_gateway_info': {
'network_id': uuidutils.generate_uuid(),
'enable_snat': True
}
}
plugin.get_router.return_value = sync_router
with mock.patch.object(scheduler, 'bind_router'):
scheduler._schedule_router(
plugin, self.adminContext, 'foo_router_id', None)
expected_calls = [
mock.call.get_router(mock.ANY, 'foo_router_id'),
mock.call.get_l3_agents_hosting_routers(
mock.ANY, ['foo_router_id'], admin_state_up=True),
mock.call.get_l3_agents(mock.ANY, active=True),
mock.call.get_l3_agent_candidates(mock.ANY, sync_router,
[agent]),
]
plugin.assert_has_calls(expected_calls)
def _test_schedule_bind_router(self, agent, router):
ctx = self.adminContext
scheduler = l3_agent_scheduler.ChanceScheduler()
rid = router['router']['id']
scheduler.bind_router(self.plugin, ctx, rid, agent.id)
results = rb_obj.RouterL3AgentBinding.get_objects(ctx, router_id=rid)
self.assertGreater(len(results), 0)
self.assertIn(agent.id, [bind.l3_agent_id for bind in results])
def test_bind_new_router(self):
router = self._make_router(self.fmt,
tenant_id=uuidutils.generate_uuid(),
name='r1')
with mock.patch.object(l3_agent_scheduler.LOG, 'debug') as flog:
self._test_schedule_bind_router(self.agent1, router)
self.assertEqual(1, flog.call_count)
args, kwargs = flog.call_args
self.assertIn('is scheduled', args[0])
def test_bind_absent_router(self):
scheduler = l3_agent_scheduler.ChanceScheduler()
# checking that bind_router() is not throwing
# when supplied with router_id of non-existing router
scheduler.bind_router(self.plugin, self.adminContext,
uuidutils.generate_uuid(), self.agent_id1)
def test_bind_existing_router(self):
router = self._make_router(self.fmt,
tenant_id=uuidutils.generate_uuid(),
name='r2')
self._test_schedule_bind_router(self.agent1, router)
with mock.patch.object(l3_agent_scheduler.LOG, 'debug') as flog:
self._test_schedule_bind_router(self.agent1, router)
self.assertEqual(1, flog.call_count)
args, kwargs = flog.call_args
self.assertIn('has already been scheduled', args[0])
def _check_get_l3_agent_candidates(
self, router, agent_list, exp_host, count=1):
candidates = self.plugin.get_l3_agent_candidates(self.adminContext,
router, agent_list)
self.assertEqual(count, len(candidates))
if count:
self.assertEqual(exp_host, candidates[0]['host'])
def test_get_l3_agent_candidates_legacy(self):
self._register_l3_dvr_agents()
router = self._make_router(self.fmt,
tenant_id=uuidutils.generate_uuid(),
name='r2')
router['external_gateway_info'] = None
router['id'] = uuidutils.generate_uuid()
agent_list = [self.agent1, self.l3_dvr_agent]
# test legacy agent_mode case: only legacy agent should be candidate
router['distributed'] = False
exp_host = 'host_1'
self._check_get_l3_agent_candidates(router, agent_list, exp_host)
def test_get_l3_agent_candidates_dvr(self):
self._register_l3_dvr_agents()
router = self._make_router(self.fmt,
tenant_id=uuidutils.generate_uuid(),
name='r2')
router['external_gateway_info'] = None
router['id'] = uuidutils.generate_uuid()
agent_list = [self.agent1, self.l3_dvr_agent]
# test dvr agent_mode case no candidates
router['distributed'] = True
self.get_subnet_ids_on_router = mock.Mock()
self._check_dvr_serviceable_ports_on_host = mock.Mock(
return_value=True)
self._check_get_l3_agent_candidates(router, agent_list, None, count=0)
def test_get_l3_agent_candidates_dvr_no_vms(self):
self._register_l3_dvr_agents()
router = self._make_router(self.fmt,
tenant_id=uuidutils.generate_uuid(),
name='r2')
router['external_gateway_info'] = None
router['id'] = uuidutils.generate_uuid()
agent_list = [self.agent1, self.l3_dvr_agent]
router['distributed'] = True
# Test no VMs present case
self.get_subnet_ids_on_router = mock.Mock()
self._check_dvr_serviceable_ports_on_host = mock.Mock(
return_value=False)
self._check_get_l3_agent_candidates(
router, agent_list, HOST_DVR, count=0)
def test_get_l3_agent_candidates_dvr_snat(self):
self._register_l3_dvr_agents()
router = self._make_router(self.fmt,
tenant_id=uuidutils.generate_uuid(),
name='r2')
router['external_gateway_info'] = None
router['id'] = uuidutils.generate_uuid()
router['distributed'] = True
agent_list = [self.l3_dvr_snat_agent]
self.get_subnet_ids_on_router = mock.Mock()
self._check_dvr_serviceable_ports_on_host = mock.Mock(
return_value=True)
self._check_get_l3_agent_candidates(router, agent_list, HOST_DVR_SNAT)
def test_get_l3_agent_candidates_dvr_snat_no_vms(self):
self._register_l3_dvr_agents()
router = self._make_router(self.fmt,
tenant_id=uuidutils.generate_uuid(),
name='r2')
router['external_gateway_info'] = None
router['id'] = uuidutils.generate_uuid()
router['distributed'] = True
agent_list = [self.l3_dvr_snat_agent]
self._check_dvr_serviceable_ports_on_host = mock.Mock(
return_value=False)
# Test no VMs present case
self.get_subnet_ids_on_router = mock.Mock()
self._check_dvr_serviceable_ports_on_host.return_value = False
self._check_get_l3_agent_candidates(
router, agent_list, HOST_DVR_SNAT, count=1)
def test_get_l3_agent_candidates_dvr_ha_snat_no_vms(self):
self._register_l3_dvr_agents()
router = self._make_router(self.fmt,
tenant_id=uuidutils.generate_uuid(),
name='r2')
router['external_gateway_info'] = None
router['id'] = uuidutils.generate_uuid()
router['distributed'] = True
router['ha'] = True
agent_list = [self.l3_dvr_snat_agent]
self.check_ports_exist_on_l3agent = mock.Mock(return_value=False)
# Test no VMs present case
self.check_ports_exist_on_l3agent.return_value = False
self.get_subnet_ids_on_router = mock.Mock(return_value=set())
self._check_get_l3_agent_candidates(
router, agent_list, HOST_DVR_SNAT, count=1)
def test_get_l3_agent_candidates_centralized(self):
self._register_l3_dvr_agents()
router = self._make_router(self.fmt,
tenant_id=uuidutils.generate_uuid(),
name='r2')
router['external_gateway_info'] = None
router['id'] = uuidutils.generate_uuid()
# check centralized test case
router['distributed'] = False
agent_list = [self.l3_dvr_snat_agent]
self._check_get_l3_agent_candidates(router, agent_list, HOST_DVR_SNAT)
def test_get_l3_agents_hosting_routers(self):
agent = helpers.register_l3_agent('host_6')
router = self._make_router(self.fmt,
tenant_id=uuidutils.generate_uuid(),
name='r1')
ctx = self.adminContext
router_id = router['router']['id']
self.plugin.router_scheduler.bind_router(self.plugin, ctx,
router_id, agent.id)
agents = self.plugin.get_l3_agents_hosting_routers(ctx,
[router_id])
self.assertEqual([agent.id], [agt.id for agt in agents])
agents = self.plugin.get_l3_agents_hosting_routers(ctx,
[router_id],
admin_state_up=True)
self.assertEqual([agent.id], [agt.id for agt in agents])
self._set_l3_agent_admin_state(ctx, agent.id, False)
agents = self.plugin.get_l3_agents_hosting_routers(ctx,
[router_id])
self.assertEqual([agent.id], [agt.id for agt in agents])
agents = self.plugin.get_l3_agents_hosting_routers(ctx,
[router_id],
admin_state_up=True)
self.assertEqual([], agents)
class L3SchedulerTestCaseMixin(test_l3.L3NatTestCaseMixin,
L3SchedulerBaseMixin,
L3SchedulerTestBaseMixin):
def setUp(self):
self.mock_rescheduling = False
ext_mgr = test_l3.L3TestExtensionManager()
plugin_str = ('neutron.tests.unit.extensions.test_l3.'
'TestL3NatIntAgentSchedulingPlugin')
super(L3SchedulerTestCaseMixin, self).setUp(plugin=plugin_str,
ext_mgr=ext_mgr)
self.adminContext = n_context.get_admin_context()
self.plugin = directory.get_plugin()
self.plugin.router_scheduler = importutils.import_object(
'neutron.scheduler.l3_agent_scheduler.ChanceScheduler'
)
self._register_l3_agents()
class L3AgentChanceSchedulerTestCase(L3SchedulerTestCaseMixin,
test_db_base_plugin_v2.
NeutronDbPluginV2TestCase):
def setUp(self):
super(L3AgentChanceSchedulerTestCase, self).setUp()
# Removes MissingAuthPlugin exception from logs
self.patch_notifier = mock.patch(
'neutron.notifiers.batch_notifier.BatchNotifier._notify')
self.patch_notifier.start()
def test_random_scheduling(self):
random_patch = mock.patch.object(secrets.SystemRandom, 'choice')
random_mock = random_patch.start()
def side_effect(seq):
return seq[0]
random_mock.side_effect = side_effect
with self.subnet() as subnet:
self._set_net_external(subnet['subnet']['network_id'])
with self.router_with_ext_gw(name='r1', subnet=subnet) as r1:
agents = self.plugin.get_l3_agents_hosting_routers(
self.adminContext, [r1['router']['id']],
admin_state_up=True)
self.assertEqual(1, len(agents))
self.assertEqual(1, random_mock.call_count)
with self.router_with_ext_gw(name='r2', subnet=subnet) as r2:
agents = self.plugin.get_l3_agents_hosting_routers(
self.adminContext, [r2['router']['id']],
admin_state_up=True)
self.assertEqual(len(agents), 1)
self.assertEqual(2, random_mock.call_count)
random_patch.stop()
def test_scheduler_auto_schedule_when_agent_added(self):
self._set_l3_agent_admin_state(self.adminContext,
self.agent_id1, False)
self._set_l3_agent_admin_state(self.adminContext,
self.agent_id2, False)
with self.subnet() as subnet:
self._set_net_external(subnet['subnet']['network_id'])
with self.router_with_ext_gw(name='r1', subnet=subnet) as r1:
agents = self.plugin.get_l3_agents_hosting_routers(
self.adminContext, [r1['router']['id']],
admin_state_up=True)
self.assertEqual(0, len(agents))
self._set_l3_agent_admin_state(self.adminContext,
self.agent_id1, True)
self.plugin.auto_schedule_routers(self.adminContext, 'host_1')
agents = self.plugin.get_l3_agents_hosting_routers(
self.adminContext, [r1['router']['id']],
admin_state_up=True)
self.assertEqual('host_1', agents[0]['host'])
class L3AgentLeastRoutersSchedulerTestCase(L3SchedulerTestCaseMixin,
test_db_base_plugin_v2.
NeutronDbPluginV2TestCase):
def setUp(self):
super(L3AgentLeastRoutersSchedulerTestCase, self).setUp()
self.plugin.router_scheduler = importutils.import_object(
'neutron.scheduler.l3_agent_scheduler.LeastRoutersScheduler'
)
def test_scheduler(self):
# disable one agent to force the scheduling to the only one.
self._set_l3_agent_admin_state(self.adminContext,
self.agent_id2, False)
with self.subnet() as subnet:
self._set_net_external(subnet['subnet']['network_id'])
with self.router_with_ext_gw(name='r1', subnet=subnet) as r1:
agents = self.plugin.get_l3_agents_hosting_routers(
self.adminContext, [r1['router']['id']],
admin_state_up=True)
self.assertEqual(1, len(agents))
agent_id1 = agents[0]['id']
with self.router_with_ext_gw(name='r2', subnet=subnet) as r2:
agents = self.plugin.get_l3_agents_hosting_routers(
self.adminContext, [r2['router']['id']],
admin_state_up=True)
self.assertEqual(1, len(agents))
agent_id2 = agents[0]['id']
self.assertEqual(agent_id1, agent_id2)
# re-enable the second agent to see whether the next router
# spawned will be on this one.
self._set_l3_agent_admin_state(self.adminContext,
self.agent_id2, True)
with self.router_with_ext_gw(name='r3',
subnet=subnet) as r3:
agents = self.plugin.get_l3_agents_hosting_routers(
self.adminContext, [r3['router']['id']],
admin_state_up=True)
self.assertEqual(1, len(agents))
agent_id3 = agents[0]['id']
self.assertNotEqual(agent_id1, agent_id3)
class L3DvrScheduler(l3_db.L3_NAT_db_mixin,
l3_dvrscheduler_db.L3_DVRsch_db_mixin):
pass
class L3DvrSchedulerTestCase(L3SchedulerBaseMixin,
test_db_base_plugin_v2.
NeutronDbPluginV2TestCase):
l3_plugin = ('neutron.tests.unit.extensions.test_l3.'
'TestL3NatAgentSchedulingServicePlugin')
def setUp(self):
if self.l3_plugin:
service_plugins = {
'l3_plugin_name': self.l3_plugin,
'flavors_plugin_name': 'neutron.services.flavors.'
'flavors_plugin.FlavorsPlugin'
}
else:
service_plugins = None
super(L3DvrSchedulerTestCase, self).setUp('ml2',
service_plugins=service_plugins)
self.useFixture(fixture.CallbackRegistryFixture())
self.setup_coreplugin('ml2')
self.adminContext = n_context.get_admin_context()
self.dut = L3DvrScheduler()
self.l3plugin = directory.get_plugin(plugin_constants.L3)
def test__notify_l3_agent_update_port_with_allowed_address_pairs_revert(
self):
port_id = uuidutils.generate_uuid()
context = self.adminContext
port = {
'id': port_id,
'admin_state_up': False,
portbindings.HOST_ID: 'vm-host',
'device_id': 'vm-id',
'allowed_address_pairs': [
{'ip_address': '10.1.0.201',
'mac_address': 'aa:bb:cc:dd:ee:ff'}],
'device_owner': DEVICE_OWNER_COMPUTE, }
original_port = {
'id': port_id,
'admin_state_up': True,
portbindings.HOST_ID: 'vm-host',
'device_id': 'vm-id',
'allowed_address_pairs': [
{'ip_address': '10.1.0.201',
'mac_address': 'aa:bb:cc:dd:ee:ff'}],
'device_owner': DEVICE_OWNER_COMPUTE, }
l3plugin = mock.Mock()
directory.add_plugin(plugin_constants.L3, l3plugin)
l3_dvrscheduler_db._notify_l3_agent_port_update(
resources.PORT, events.AFTER_UPDATE, mock.ANY,
payload=events.DBEventPayload(
context, resource_id=port_id, states=(original_port, port,)))
l3plugin._get_allowed_address_pair_fixed_ips.return_value = (
['10.1.0.21'])
self.assertFalse(
l3plugin.update_arp_entry_for_dvr_service_port.called)
l3plugin.delete_arp_entry_for_dvr_service_port.\
assert_called_once_with(
self.adminContext,
original_port,
fixed_ips_to_delete=mock.ANY)
def test__notify_l3_agent_update_port_with_allowed_address_pairs(self):
port_id = uuidutils.generate_uuid()
context = self.adminContext
port = {
'id': port_id,
portbindings.HOST_ID: 'vm-host',
'allowed_address_pairs': [
{'ip_address': '10.1.0.201',
'mac_address': 'aa:bb:cc:dd:ee:ff'}],
'device_id': 'vm-id',
'device_owner': DEVICE_OWNER_COMPUTE,
'admin_state_up': True, }
original_port = {
'id': port_id,
portbindings.HOST_ID: 'vm-host',
'device_id': 'vm-id',
'device_owner': DEVICE_OWNER_COMPUTE,
'admin_state_up': True, }
l3plugin = mock.Mock()
directory.add_plugin(plugin_constants.L3, l3plugin)
l3_dvrscheduler_db._notify_l3_agent_port_update(
resources.PORT, events.AFTER_UPDATE, mock.ANY,
payload=events.DBEventPayload(
context, resource_id=port_id, states=(original_port, port,)))
self.assertTrue(
l3plugin.update_arp_entry_for_dvr_service_port.called)
def test__notify_l3_agent_when_unbound_port_migrates_to_bound_host(self):
port_id = 'fake-port'
context = self.adminContext
original_port = {
'id': port_id,
portbindings.HOST_ID: '',
'device_owner': '',
'admin_state_up': True}
port = {
'id': port_id,
portbindings.HOST_ID: 'vm-host',
'device_owner': DEVICE_OWNER_COMPUTE,
'mac_address': '02:04:05:17:18:19'}
plugin = directory.get_plugin()
l3plugin = mock.MagicMock()
l3plugin.supported_extension_aliases = [
'router', constants.L3_AGENT_SCHEDULER_EXT_ALIAS,
constants.L3_DISTRIBUTED_EXT_ALIAS
]
directory.add_plugin(plugin_constants.L3, l3plugin)
l3_dvrscheduler_db._notify_l3_agent_port_update(
resources.PORT, events.AFTER_UPDATE, plugin,
payload=events.DBEventPayload(
context, resource_id=port_id, states=(original_port, port,)))
l3plugin.dvr_handle_new_service_port.assert_called_once_with(
self.adminContext, port, unbound_migrate=True)
def test__notify_l3_agent_update_port_no_removing_routers(self):
port_id = 'fake-port'
context = self.adminContext
port = None
original_port = {
'id': port_id,
portbindings.HOST_ID: 'vm-host',
'device_id': 'vm-id',
'device_owner': DEVICE_OWNER_COMPUTE,
'mac_address': '02:04:05:17:18:19'}
plugin = directory.get_plugin()
l3plugin = mock.Mock()
l3plugin.supported_extension_aliases = [
'router', constants.L3_AGENT_SCHEDULER_EXT_ALIAS,
constants.L3_DISTRIBUTED_EXT_ALIAS
]
directory.add_plugin(plugin_constants.L3, l3plugin)
l3_dvrscheduler_db._notify_l3_agent_port_update(
resources.PORT, events.AFTER_UPDATE, plugin,
payload=events.DBEventPayload(
context,
metadata={'mac_address_updated': True},
resource_id=port_id,
states=(original_port, port,)))
self.assertFalse(
l3plugin.update_arp_entry_for_dvr_service_port.called)
self.assertFalse(
l3plugin.dvr_handle_new_service_port.called)
self.assertFalse(l3plugin.remove_router_from_l3_agent.called)
self.assertFalse(l3plugin.get_dvr_routers_to_remove.called)
def test__notify_l3_agent_new_port_action(self):
port_dict = {'device_owner': DEVICE_OWNER_COMPUTE}
l3plugin = mock.Mock()
directory.add_plugin(plugin_constants.L3, l3plugin)
l3_dvrscheduler_db._notify_l3_agent_new_port(
resources.PORT, events.AFTER_CREATE, mock.ANY,
payload=events.DBEventPayload(
self.adminContext, states=(port_dict,)))
l3plugin.update_arp_entry_for_dvr_service_port.\
assert_called_once_with(
self.adminContext, port_dict)
l3plugin.dvr_handle_new_service_port.assert_called_once_with(
self.adminContext, port_dict)
def test__notify_l3_agent_new_port_no_action(self):
port_dict = {
'device_owner': constants.DEVICE_OWNER_NETWORK_PREFIX + 'None'}
l3plugin = mock.Mock()
directory.add_plugin(plugin_constants.L3, l3plugin)
l3_dvrscheduler_db._notify_l3_agent_new_port(
resources.PORT, events.AFTER_CREATE, mock.ANY,
payload=events.DBEventPayload(
self.adminContext, states=(port_dict,)))
self.assertFalse(
l3plugin.update_arp_entry_for_dvr_service_port.called)
self.assertFalse(
l3plugin.dvr_handle_new_service_port.called)
def test__notify_l3_agent_update_port_with_migration_port_profile(self):
context = self.adminContext
original_port = {
portbindings.HOST_ID: 'vm-host',
'device_owner': DEVICE_OWNER_COMPUTE,
'id': uuidutils.generate_uuid()}
port = {
portbindings.HOST_ID: 'vm-host',
'device_owner': DEVICE_OWNER_COMPUTE,
portbindings.PROFILE: {'migrating_to': 'vm-host2'}}
l3plugin = mock.MagicMock()
directory.add_plugin(plugin_constants.L3, l3plugin)
with mock.patch.object(l3plugin, '_get_floatingips_by_port_id',
return_value=[]):
l3_dvrscheduler_db._notify_l3_agent_port_update(
resources.PORT, events.AFTER_UPDATE, mock.ANY,
payload=events.DBEventPayload(
context, states=(original_port, port,)))
l3plugin.dvr_handle_new_service_port.assert_called_once_with(
context, port,
dest_host='vm-host2', router_id=None)
l3plugin.update_arp_entry_for_dvr_service_port.\
assert_called_once_with(
context, port)
def test__notify_l3_agent_update_port_no_action(self):
context = self.adminContext
original_port = {
portbindings.HOST_ID: 'vm-host',
'device_owner': DEVICE_OWNER_COMPUTE}
port = {
portbindings.HOST_ID: 'vm-host',
'device_owner': DEVICE_OWNER_COMPUTE}
l3plugin = mock.Mock()
directory.add_plugin(plugin_constants.L3, l3plugin)
l3_dvrscheduler_db._notify_l3_agent_port_update(
resources.PORT, events.AFTER_UPDATE, mock.ANY,
payload=events.DBEventPayload(
context, states=(original_port, port,)))
self.assertFalse(
l3plugin.update_arp_entry_for_dvr_service_port.called)
self.assertFalse(
l3plugin.dvr_handle_new_service_port.called)
self.assertFalse(l3plugin.remove_router_from_l3_agent.called)
self.assertFalse(l3plugin.get_dvr_routers_to_remove.called)
def test__notify_l3_agent_update_port_with_mac_address_update(self):
context = self.adminContext
original_port = {