215 lines
9.7 KiB
Python
215 lines
9.7 KiB
Python
# Copyright (c) 2014 OpenStack Foundation, all rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from unittest import mock
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from neutron_lib.api.definitions import portbindings
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from neutron_lib.callbacks import events
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from neutron_lib.callbacks import registry
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from neutron_lib.callbacks import resources
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from neutron_lib import constants
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from neutron_lib import context
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from neutron_lib import exceptions as lib_exc
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from neutron_lib.exceptions import dvr as dvr_exc
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from neutron_lib import fixture
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from neutron_lib.plugins import directory
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from neutron_lib.tests import tools
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from neutron_lib.utils import net
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from neutron.db import dvr_mac_db
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from neutron.objects import router
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from neutron.tests.unit.plugins.ml2 import test_plugin
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class DVRDbMixinImpl(dvr_mac_db.DVRDbMixin):
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def __init__(self, notifier):
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self.notifier = notifier
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class DvrDbMixinTestCase(test_plugin.Ml2PluginV2TestCase):
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def setUp(self):
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super(DvrDbMixinTestCase, self).setUp()
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self.ctx = context.get_admin_context()
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self.mixin = DVRDbMixinImpl(mock.Mock())
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def _create_dvr_mac_entry(self, host, mac_address):
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router.DVRMacAddress(
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self.ctx, host=host, mac_address=mac_address).create()
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def test__get_dvr_mac_address_by_host(self):
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entry = router.DVRMacAddress(
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self.ctx, host='foo_host',
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mac_address=tools.get_random_EUI())
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entry.create()
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result = self.mixin._get_dvr_mac_address_by_host(self.ctx, 'foo_host')
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self.assertEqual(entry.to_dict(), result)
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def test__get_dvr_mac_address_by_host_not_found(self):
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self.assertRaises(dvr_exc.DVRMacAddressNotFound,
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self.mixin._get_dvr_mac_address_by_host,
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self.ctx, 'foo_host')
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def test__create_dvr_mac_address_success(self):
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entry = {'host': 'foo_host', 'mac_address': tools.get_random_EUI()}
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with mock.patch.object(net, 'get_random_mac') as f:
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f.return_value = entry['mac_address']
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expected = self.mixin._create_dvr_mac_address(
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self.ctx, entry['host'])
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self.assertEqual(expected, entry)
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def test__create_dvr_mac_address_retries_exceeded_retry_logic(self):
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# limit retries so test doesn't take 40 seconds
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retry_fixture = fixture.DBRetryErrorsFixture(max_retries=2)
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retry_fixture.setUp()
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non_unique_mac = tools.get_random_EUI()
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self._create_dvr_mac_entry('foo_host_1', non_unique_mac)
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with mock.patch.object(net, 'get_random_mac') as f:
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f.return_value = non_unique_mac
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self.assertRaises(lib_exc.HostMacAddressGenerationFailure,
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self.mixin._create_dvr_mac_address,
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self.ctx, "foo_host_2")
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retry_fixture.cleanUp()
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def test_mac_not_cleared_on_agent_delete_event_with_remaining_agents(self):
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plugin = directory.get_plugin()
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mac_1 = tools.get_random_EUI()
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mac_2 = tools.get_random_EUI()
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self._create_dvr_mac_entry('host_1', mac_1)
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self._create_dvr_mac_entry('host_2', mac_2)
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agent1 = {'host': 'host_1', 'id': 'a1'}
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agent2 = {'host': 'host_1', 'id': 'a2'}
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with mock.patch.object(plugin, 'get_agents', return_value=[agent2]):
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with mock.patch.object(plugin, 'notifier') as notifier:
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registry.publish(resources.AGENT, events.BEFORE_DELETE, self,
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payload=events.DBEventPayload(
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self.ctx, states=(agent1,)))
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mac_list = self.mixin.get_dvr_mac_address_list(self.ctx)
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for mac in mac_list:
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self.assertIsInstance(mac, dict)
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self.assertEqual(2, len(mac_list))
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self.assertFalse(notifier.dvr_mac_address_update.called)
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def test_mac_cleared_on_agent_delete_event(self):
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plugin = directory.get_plugin()
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mac_1 = tools.get_random_EUI()
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mac_2 = tools.get_random_EUI()
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self._create_dvr_mac_entry('host_1', mac_1)
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self._create_dvr_mac_entry('host_2', mac_2)
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agent = {'host': 'host_1', 'id': 'a1'}
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with mock.patch.object(plugin, 'notifier') as notifier:
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registry.publish(resources.AGENT, events.BEFORE_DELETE, self,
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payload=events.DBEventPayload(
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self.ctx, states=(agent,)))
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mac_list = self.mixin.get_dvr_mac_address_list(self.ctx)
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self.assertEqual(1, len(mac_list))
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for mac in mac_list:
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self.assertIsInstance(mac, dict)
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self.assertEqual('host_2', mac_list[0]['host'])
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notifier.dvr_mac_address_update.assert_called_once_with(
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self.ctx, mac_list)
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def test_get_dvr_mac_address_list(self):
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mac_1 = tools.get_random_EUI()
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mac_2 = tools.get_random_EUI()
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self._create_dvr_mac_entry('host_1', mac_1)
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self._create_dvr_mac_entry('host_2', mac_2)
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mac_list = self.mixin.get_dvr_mac_address_list(self.ctx)
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self.assertEqual(2, len(mac_list))
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for mac in mac_list:
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self.assertIsInstance(mac, dict)
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def test_get_dvr_mac_address_by_host_existing_host(self):
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self._create_dvr_mac_entry('foo_host', tools.get_random_EUI())
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with mock.patch.object(self.mixin,
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'_get_dvr_mac_address_by_host') as f:
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self.mixin.get_dvr_mac_address_by_host(self.ctx, 'foo_host')
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self.assertEqual(1, f.call_count)
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def test_get_dvr_mac_address_by_host_missing_host(self):
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with mock.patch.object(self.mixin, '_create_dvr_mac_address') as f:
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self.mixin.get_dvr_mac_address_by_host(self.ctx, 'foo_host')
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self.assertEqual(1, f.call_count)
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def test_get_subnet_for_dvr_returns_correct_mac(self):
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with self.subnet() as subnet,\
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self.port(subnet=subnet),\
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self.port(subnet=subnet):
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dvr_subnet = self.mixin.get_subnet_for_dvr(self.ctx,
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subnet['subnet']['id'])
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# no gateway port should be found so no info should be returned
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self.assertEqual({}, dvr_subnet)
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with self.port(
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subnet=subnet,
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fixed_ips=[{'ip_address': subnet['subnet'][
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'gateway_ip']}]) as gw_port:
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dvr_subnet = self.mixin.get_subnet_for_dvr(
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self.ctx, subnet['subnet']['id'])
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self.assertEqual(gw_port['port']['mac_address'],
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dvr_subnet['gateway_mac'])
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def test_get_subnet_for_dvr_returns_correct_mac_fixed_ips_passed(self):
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with self.subnet() as subnet,\
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self.port(subnet=subnet,
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fixed_ips=[{'ip_address': '10.0.0.2'}]),\
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self.port(subnet=subnet,
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fixed_ips=[{'ip_address': '10.0.0.3'}]):
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fixed_ips = [{'subnet_id': subnet['subnet']['id'],
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'ip_address': '10.0.0.4'}]
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dvr_subnet = self.mixin.get_subnet_for_dvr(
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self.ctx, subnet['subnet']['id'], fixed_ips)
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# no gateway port should be found so no info should be returned
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self.assertEqual({}, dvr_subnet)
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with self.port(
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subnet=subnet,
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fixed_ips=[{'ip_address': '10.0.0.4'}]) as gw_port:
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dvr_subnet = self.mixin.get_subnet_for_dvr(
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self.ctx, subnet['subnet']['id'], fixed_ips)
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self.assertEqual(gw_port['port']['mac_address'],
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dvr_subnet['gateway_mac'])
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def test_get_ports_on_host_by_subnet(self):
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HOST = 'host1'
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host_arg = {portbindings.HOST_ID: HOST}
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arg_list = (portbindings.HOST_ID,)
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with self.subnet() as subnet,\
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self.port(subnet=subnet,
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device_owner=constants.DEVICE_OWNER_COMPUTE_PREFIX,
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arg_list=arg_list, **host_arg) as compute_port,\
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self.port(subnet=subnet,
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device_owner=constants.DEVICE_OWNER_DHCP,
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arg_list=arg_list, **host_arg) as dhcp_port,\
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self.port(subnet=subnet,
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device_owner=constants.DEVICE_OWNER_LOADBALANCER,
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arg_list=arg_list, **host_arg) as lb_port,\
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self.port(device_owner=constants.DEVICE_OWNER_COMPUTE_PREFIX,
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arg_list=arg_list, **host_arg),\
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self.port(subnet=subnet,
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device_owner=constants.DEVICE_OWNER_COMPUTE_PREFIX,
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arg_list=arg_list,
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**{portbindings.HOST_ID: 'other'}),\
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self.port(subnet=subnet,
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device_owner=constants.DEVICE_OWNER_NETWORK_PREFIX,
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arg_list=arg_list, **host_arg):
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expected_ids = [port['port']['id'] for port in
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[compute_port, dhcp_port, lb_port]]
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dvr_ports = self.mixin.get_ports_on_host_by_subnet(
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self.ctx, HOST, subnet['subnet']['id'])
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self.assertEqual(len(expected_ids), len(dvr_ports))
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self.assertCountEqual(expected_ids,
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[port['id'] for port in dvr_ports])
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