287 lines
12 KiB
Python
287 lines
12 KiB
Python
# Copyright 2020 Red Hat, Inc.
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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 mock
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import fixtures as og_fixtures
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from oslo_config import cfg
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from oslo_utils import uuidutils
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from neutron.common.ovn import constants as ovn_const
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from neutron.common import utils as n_utils
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from neutron.conf.plugins.ml2.drivers.ovn import ovn_conf
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from neutron.db import ovn_hash_ring_db as db_hash_ring
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from neutron.plugins.ml2.drivers.ovn.mech_driver.ovsdb import ovsdb_monitor
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from neutron.tests.functional import base
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from neutron.tests.functional.resources.ovsdb import fixtures
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from neutron.tests.functional.resources import process
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from neutron_lib.api.definitions import portbindings
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from neutron_lib.plugins import constants as plugin_constants
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from neutron_lib.plugins import directory
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from ovsdbapp.backend.ovs_idl import event
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class WaitForMACBindingDeleteEvent(event.WaitEvent):
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event_name = 'WaitForMACBindingDeleteEvent'
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def __init__(self, entry):
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table = 'MAC_Binding'
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events = (self.ROW_DELETE,)
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conditions = (('_uuid', '=', entry),)
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super(WaitForMACBindingDeleteEvent, self).__init__(
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events, table, conditions, timeout=15)
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class WaitForDataPathBindingCreateEvent(event.WaitEvent):
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event_name = 'WaitForDataPathBindingCreateEvent'
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def __init__(self, net_name):
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table = 'Datapath_Binding'
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events = (self.ROW_CREATE,)
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conditions = (('external_ids', '=', {'name2': net_name}),)
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super(WaitForDataPathBindingCreateEvent, self).__init__(
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events, table, conditions, timeout=15)
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class DistributedLockTestEvent(event.WaitEvent):
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ONETIME = False
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COUNTER = 0
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def __init__(self):
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table = 'Logical_Switch_Port'
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events = (self.ROW_CREATE,)
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super(DistributedLockTestEvent, self).__init__(
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events, table, (), timeout=15)
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self.event_name = 'DistributedLockTestEvent'
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def run(self, event, row, old):
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self.COUNTER += 1
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self.event.set()
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class TestNBDbMonitor(base.TestOVNFunctionalBase):
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def setUp(self):
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super(TestNBDbMonitor, self).setUp()
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self.chassis = self.add_fake_chassis('ovs-host1')
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self.l3_plugin = directory.get_plugin(plugin_constants.L3)
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def create_port(self):
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net = self._make_network(self.fmt, 'net1', True)
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self._make_subnet(self.fmt, net, '20.0.0.1',
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'20.0.0.0/24', ip_version=4)
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arg_list = ('device_owner', 'device_id', portbindings.HOST_ID)
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host_arg = {'device_owner': 'compute:nova',
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'device_id': uuidutils.generate_uuid(),
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portbindings.HOST_ID: 'ovs-host1'}
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port_res = self._create_port(self.fmt, net['network']['id'],
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arg_list=arg_list, **host_arg)
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port = self.deserialize(self.fmt, port_res)['port']
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return port
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def _create_fip(self, port, fip_address):
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e1 = self._make_network(self.fmt, 'e1', True,
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arg_list=('router:external',
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'provider:network_type',
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'provider:physical_network'),
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**{'router:external': True,
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'provider:network_type': 'flat',
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'provider:physical_network': 'public'})
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res = self._create_subnet(self.fmt, e1['network']['id'],
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'100.0.0.0/24', gateway_ip='100.0.0.254',
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allocation_pools=[{'start': '100.0.0.2',
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'end': '100.0.0.253'}],
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enable_dhcp=False)
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e1_s1 = self.deserialize(self.fmt, res)
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r1 = self.l3_plugin.create_router(
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self.context,
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{'router': {
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'name': 'r1', 'admin_state_up': True,
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'tenant_id': self._tenant_id,
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'external_gateway_info': {
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'enable_snat': True,
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'network_id': e1['network']['id'],
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'external_fixed_ips': [
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{'ip_address': '100.0.0.2',
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'subnet_id': e1_s1['subnet']['id']}]}}})
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self.l3_plugin.add_router_interface(
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self.context, r1['id'],
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{'subnet_id': port['fixed_ips'][0]['subnet_id']})
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r1_f2 = self.l3_plugin.create_floatingip(
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self.context, {'floatingip': {
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'tenant_id': self._tenant_id,
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'floating_network_id': e1['network']['id'],
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'subnet_id': None,
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'floating_ip_address': fip_address,
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'port_id': port['id']}})
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return r1_f2
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def test_floatingip_mac_bindings(self):
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"""Check that MAC_Binding entries are cleared on FIP add/removal
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This test will:
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* Create a MAC_Binding entry for an IP address on the
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'network1' datapath.
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* Create a FIP with that same IP address on an external.
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network and associate it to a Neutron port on a private network.
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* Check that the MAC_Binding entry gets deleted.
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* Create a new MAC_Binding entry for the same IP address.
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* Delete the FIP.
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* Check that the MAC_Binding entry gets deleted.
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"""
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net_name = 'network1'
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row_event = WaitForDataPathBindingCreateEvent(net_name)
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self.mech_driver._sb_ovn.idl.notify_handler.watch_event(row_event)
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self._make_network(self.fmt, net_name, True)
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self.assertTrue(row_event.wait())
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dp = self.sb_api.db_find(
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'Datapath_Binding',
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('external_ids', '=', {'name2': net_name})).execute()
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macb_id = self.sb_api.db_create('MAC_Binding', datapath=dp[0]['_uuid'],
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ip='100.0.0.21').execute()
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port = self.create_port()
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# Ensure that the MAC_Binding entry gets deleted after creating a FIP
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row_event = WaitForMACBindingDeleteEvent(macb_id)
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self.mech_driver._sb_ovn.idl.notify_handler.watch_event(row_event)
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fip = self._create_fip(port, '100.0.0.21')
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self.assertTrue(row_event.wait())
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# Now that the FIP is created, add a new MAC_Binding entry with the
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# same IP address
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macb_id = self.sb_api.db_create('MAC_Binding', datapath=dp[0]['_uuid'],
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ip='100.0.0.21').execute()
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# Ensure that the MAC_Binding entry gets deleted after deleting the FIP
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row_event = WaitForMACBindingDeleteEvent(macb_id)
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self.mech_driver._sb_ovn.idl.notify_handler.watch_event(row_event)
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self.l3_plugin.delete_floatingip(self.context, fip['id'])
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self.assertTrue(row_event.wait())
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def _test_port_binding_and_status(self, port_id, action, status):
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# This function binds or unbinds port to chassis and
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# checks if port status matches with input status
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core_plugin = directory.get_plugin()
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self.sb_api.check_for_row_by_value_and_retry(
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'Port_Binding', 'logical_port', port_id)
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def check_port_status(status):
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port = core_plugin.get_ports(
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self.context, filters={'id': [port_id]})[0]
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return port['status'] == status
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if action == 'bind':
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self.sb_api.lsp_bind(port_id, self.chassis,
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may_exist=True).execute(check_error=True)
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else:
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self.sb_api.lsp_unbind(port_id).execute(check_error=True)
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n_utils.wait_until_true(lambda: check_port_status(status))
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def test_port_up_down_events(self):
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"""Test the port up down events.
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This test case creates a port, binds the port to chassis,
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tests if the ovsdb monitor calls mech_driver to set port status
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to 'ACTIVE'. Then unbinds the port and checks if the port status
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is set to "DOWN'
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"""
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port = self.create_port()
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self._test_port_binding_and_status(port['id'], 'bind', 'ACTIVE')
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self._test_port_binding_and_status(port['id'], 'unbind', 'DOWN')
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def test_distributed_lock(self):
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api_workers = 11
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cfg.CONF.set_override('api_workers', api_workers)
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row_event = DistributedLockTestEvent()
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self.mech_driver._nb_ovn.idl.notify_handler.watch_event(row_event)
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worker_list = [self.mech_driver._nb_ovn, ]
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# Create 10 fake workers
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for _ in range(api_workers - len(worker_list)):
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node_uuid = uuidutils.generate_uuid()
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db_hash_ring.add_node(
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self.context, ovn_const.HASH_RING_ML2_GROUP, node_uuid)
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fake_driver = mock.MagicMock(
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node_uuid=node_uuid,
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hash_ring_group=ovn_const.HASH_RING_ML2_GROUP)
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_idl = ovsdb_monitor.OvnNbIdl.from_server(
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self.ovsdb_server_mgr.get_ovsdb_connection_path(),
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'OVN_Northbound', fake_driver)
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worker = self.useFixture(
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fixtures.OVNIdlConnectionFixture(
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idl=_idl, timeout=10)).connection
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worker.idl.notify_handler.watch_event(row_event)
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worker.start()
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worker_list.append(worker)
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# Refresh the hash rings just in case
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[worker.idl._hash_ring.refresh() for worker in worker_list]
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# Assert we have 11 active workers in the ring
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self.assertEqual(
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11, len(db_hash_ring.get_active_nodes(
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self.context,
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interval=ovn_const.HASH_RING_NODES_TIMEOUT,
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group_name=ovn_const.HASH_RING_ML2_GROUP)))
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# Trigger the event
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self.create_port()
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# Wait for the event to complete
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self.assertTrue(row_event.wait())
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# Assert that only one worker handled the event
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self.assertEqual(1, row_event.COUNTER)
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class TestNBDbMonitorOverTcp(TestNBDbMonitor):
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def get_ovsdb_server_protocol(self):
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return 'tcp'
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class TestNBDbMonitorOverSsl(TestNBDbMonitor):
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def get_ovsdb_server_protocol(self):
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return 'ssl'
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class TestOvnIdlProbeInterval(base.TestOVNFunctionalBase):
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def setUp(self):
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# skip parent setUp, we don't need it, but we do need grandparent
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# pylint: disable=bad-super-call
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super(base.TestOVNFunctionalBase, self).setUp()
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mm = directory.get_plugin().mechanism_manager
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self.mech_driver = mm.mech_drivers['ovn'].obj
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self.temp_dir = self.useFixture(og_fixtures.TempDir()).path
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install_share_path = self._get_install_share_path()
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self.mgr = self.useFixture(
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process.OvsdbServer(self.temp_dir, install_share_path,
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ovn_nb_db=True, ovn_sb_db=True,
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protocol='tcp'))
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connection = self.mgr.get_ovsdb_connection_path
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self.connections = {'OVN_Northbound': connection(),
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'OVN_Southbound': connection(db_type='sb')}
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def test_ovsdb_probe_interval(self):
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klasses = {
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ovsdb_monitor.BaseOvnIdl: ('OVN_Northbound', {}),
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ovsdb_monitor.OvnNbIdl: ('OVN_Northbound',
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{'driver': self.mech_driver}),
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ovsdb_monitor.OvnSbIdl: ('OVN_Southbound',
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{'driver': self.mech_driver})}
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idls = [kls.from_server(self.connections[schema], schema, **kwargs)
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for kls, (schema, kwargs) in klasses.items()]
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interval = ovn_conf.get_ovn_ovsdb_probe_interval()
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for idl in idls:
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self.assertEqual(interval, idl._session.reconnect.probe_interval)
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