OpenStack Networking (Neutron)
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# Copyright (c) 2015 OpenStack Foundation
#
# 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 copy
import signal
from unittest import mock
from neutron_lib import constants as n_consts
from neutron_lib import fixture as lib_fixtures
from oslo_utils import uuidutils
from neutron.agent.l3 import ha_router
from neutron.agent.l3 import router_info
from neutron.tests import base
from neutron.tests.common import l3_test_common
_uuid = uuidutils.generate_uuid
class TestBasicRouterOperations(base.BaseTestCase):
def setUp(self):
super(TestBasicRouterOperations, self).setUp()
self.device_exists_p = mock.patch(
'neutron.agent.linux.ip_lib.device_exists')
self.device_exists = self.device_exists_p.start()
def _create_router(self, router=None, **kwargs):
if not router:
router = mock.MagicMock()
self.agent_conf = mock.Mock()
self.router_id = _uuid()
return ha_router.HaRouter(mock.sentinel.agent,
self.router_id,
router,
self.agent_conf,
mock.sentinel.driver,
**kwargs)
def test_get_router_cidrs_returns_ha_cidrs(self):
ri = self._create_router()
device = mock.MagicMock()
device.name.return_value = 'eth2'
addresses = ['15.1.2.2/24', '15.1.2.3/32']
ri._get_cidrs_from_keepalived = mock.MagicMock(return_value=addresses)
self.assertEqual(set(addresses), ri.get_router_cidrs(device))
def test_routes_updated_with_dvr(self):
ri = self._create_router(router={'distributed': True})
ri.keepalived_manager = mock.Mock()
base_routes_updated = mock.patch(
'neutron.agent.l3.router_info.'
'RouterInfo.routes_updated').start()
mock_instance = mock.Mock()
mock_instance.virtual_routes.gateway_routes = []
ri._get_keepalived_instance = mock.Mock(
return_value=mock_instance)
ri.routes_updated([], [])
self.assertTrue(base_routes_updated.called)
def test_routes_updated_with_non_dvr(self):
ri = self._create_router(router={'distributed': False})
ri.keepalived_manager = mock.Mock()
base_routes_updated = mock.patch(
'neutron.agent.l3.router_info.'
'RouterInfo.routes_updated').start()
mock_instance = mock.Mock()
mock_instance.virtual_routes.gateway_routes = []
ri._get_keepalived_instance = mock.Mock(return_value=mock_instance)
ri.routes_updated([], [])
self.assertFalse(base_routes_updated.called)
def test__add_default_gw_virtual_route(self):
ri = self._create_router()
mock_instance = mock.Mock()
mock_instance.virtual_routes.gateway_routes = []
ri._get_keepalived_instance = mock.Mock(return_value=mock_instance)
subnets = [{'id': _uuid(),
'cidr': '20.0.0.0/24',
'gateway_ip': None}]
ex_gw_port = {'fixed_ips': [],
'subnets': subnets,
'extra_subnets': [],
'id': _uuid(),
'network_id': _uuid(),
'mac_address': 'ca:fe:de:ad:be:ef'}
# Make sure no exceptional code
ri._add_default_gw_virtual_route(ex_gw_port, 'qg-abc')
self.assertEqual(0, len(mock_instance.virtual_routes.gateway_routes))
subnets.append({'id': _uuid(),
'cidr': '30.0.0.0/24',
'gateway_ip': '30.0.0.1'})
ri._add_default_gw_virtual_route(ex_gw_port, 'qg-abc')
self.assertEqual(1, len(mock_instance.virtual_routes.gateway_routes))
subnets[1]['gateway_ip'] = None
ri._add_default_gw_virtual_route(ex_gw_port, 'qg-abc')
self.assertEqual(0, len(mock_instance.virtual_routes.gateway_routes))
subnets[1]['gateway_ip'] = '30.0.1.1'
ri._add_default_gw_virtual_route(ex_gw_port, 'qg-abc')
self.assertEqual(2, len(mock_instance.virtual_routes.gateway_routes))
@mock.patch.object(router_info.RouterInfo, 'remove_floating_ip')
def test_remove_floating_ip(self, super_remove_floating_ip):
ri = self._create_router(mock.MagicMock())
mock_instance = mock.Mock()
ri._get_keepalived_instance = mock.Mock(return_value=mock_instance)
device = mock.Mock()
fip_cidr = '15.1.2.3/32'
ri.remove_floating_ip(device, fip_cidr)
self.assertTrue(super_remove_floating_ip.called)
def test_destroy_state_change_monitor_ok(self):
ri = self._create_router(mock.MagicMock())
# need a port for destroy_state_change_monitor() to call PM code
ri.ha_port = {'id': _uuid()}
with mock.patch.object(ri,
'_get_state_change_monitor_process_manager')\
as m_get_state:
mock_pm = m_get_state.return_value
mock_pm.active = False
ri.destroy_state_change_monitor(mock_pm)
mock_pm.disable.assert_called_once_with(
sig=str(int(signal.SIGTERM)))
def test_destroy_state_change_monitor_force(self):
ri = self._create_router(mock.MagicMock())
# need a port for destroy_state_change_monitor() to call PM code
ri.ha_port = {'id': _uuid()}
with mock.patch.object(ri,
'_get_state_change_monitor_process_manager')\
as m_get_state:
mock_pm = m_get_state.return_value
mock_pm.active = False
with mock.patch.object(ha_router, 'SIGTERM_TIMEOUT', 0):
ri.destroy_state_change_monitor(mock_pm)
calls = ["sig='str(%d)'" % signal.SIGTERM,
"sig='str(%d)'" % signal.SIGKILL]
mock_pm.disable.has_calls(calls)
def _test_ha_state(self, read_return, expected):
ri = self._create_router(mock.MagicMock())
ri.keepalived_manager = mock.Mock()
ri.keepalived_manager.get_full_config_file_path.return_value = (
'ha_state')
self.mock_open = self.useFixture(
lib_fixtures.OpenFixture('ha_state', read_return)).mock_open
self.assertEqual(expected, ri.ha_state)
def test_ha_state_primary(self):
self._test_ha_state('primary', 'primary')
def test_ha_state_unknown(self):
# an empty state file should yield 'unknown'
self._test_ha_state('', 'unknown')
def test_ha_state_ioerror(self):
# an error reading the state file should yield 'unknown'
ri = self._create_router(mock.MagicMock())
ri.keepalived_manager = mock.Mock()
ri.keepalived_manager.get_full_config_file_path.return_value = (
'ha_state')
self.mock_open = IOError
self.assertEqual('unknown', ri.ha_state)
def test_gateway_ports_equal(self):
ri = self._create_router(mock.MagicMock())
ri.driver = mock.MagicMock()
subnet_id, qos_policy_id = _uuid(), _uuid()
_, old_gw_port = l3_test_common.prepare_ext_gw_test(
self, ri, True)
old_gw_port['qos_policy_id'] = qos_policy_id
new_gw_port = copy.deepcopy(old_gw_port)
new_gw_port.update({'binding:host_id': 'node02',
'updated_at': '2018-11-02T14:07:00',
'revision_number': 101,
'qos_policy_id': qos_policy_id})
self.assertTrue(ri._gateway_ports_equal(old_gw_port, new_gw_port))
fixed_ip = {'ip_address': '10.10.10.3', 'subnet_id': subnet_id}
new_gw_port['fixed_ips'].append(fixed_ip)
self.assertFalse(ri._gateway_ports_equal(old_gw_port, new_gw_port))
new_gw_port['fixed_ips'].remove(fixed_ip)
new_gw_port['qos_policy_id'] = _uuid()
self.assertFalse(ri._gateway_ports_equal(old_gw_port, new_gw_port))
def test_set_ha_port(self):
ri = self._create_router()
self.assertIsNone(ri.ha_port)
ri.router = {}
ri.set_ha_port()
self.assertIsNone(ri.ha_port)
# HA_INTERFACE_KEY from None to some value
ri.router = {n_consts.HA_INTERFACE_KEY: {"id": _uuid(),
"status": "DOWN"}}
ri.set_ha_port()
self.assertIsNotNone(ri.ha_port)
self.assertEqual('DOWN', ri.ha_port["status"])
# HA port state change
ri.router = {n_consts.HA_INTERFACE_KEY: {"id": _uuid(),
"status": "ACTIVE"}}
ri.set_ha_port()
self.assertIsNotNone(ri.ha_port)
self.assertEqual('ACTIVE', ri.ha_port["status"])
ri.router = {}
ri.set_ha_port()
# neutron server return empty HA_INTERFACE_KEY, but
# agent side router info should remain the original value.
self.assertIsNotNone(ri.ha_port)