neutron/neutron/tests/unit/db/test_agentschedulers_db.py
Kevin Benton 4d85336ec1 Make callback manager Object Oriented friendly
The callback manager was indexing callbacks based on
a callback ID generated from oslo utils reflection.
This presented two problems.

The first was that in py34 get_callable_name would use
__qualname__ which returns the class name the function
is defined on rather than the class of the object itself.
So two classes defined in the same module inheriting from
the same parent class could not both subscribe a method
defined on the parent.

The second more general problem is that two objects which
are instances of the same class cannot subscribe the same
method because they have the same ID.

This adds the hash of the method to the ID to prevent these
issues. The hash by itself could have been used but it's not
very user-friendly so the name is left on for nice log
messages.

Change-Id: Iff1ca8c4ddb58ca5907d21fa0de7f0f292b6fc0e
2016-08-17 10:17:14 +00:00

1540 lines
73 KiB
Python

# Copyright (c) 2013 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 datetime
import mock
from neutron_lib import constants
from oslo_config import cfg
from oslo_db import exception as db_exc
import oslo_messaging
from oslo_utils import uuidutils
from webob import exc
from neutron.api import extensions
from neutron.api.rpc.agentnotifiers import l3_rpc_agent_api
from neutron.api.rpc.handlers import dhcp_rpc
from neutron.api.rpc.handlers import l3_rpc
from neutron.api.v2 import attributes
from neutron.common import constants as n_const
from neutron import context
from neutron.db import agents_db
from neutron.db import agentschedulers_db
from neutron.db import l3_agentschedulers_db
from neutron.extensions import agent
from neutron.extensions import dhcpagentscheduler
from neutron.extensions import l3agentscheduler
from neutron import manager
from neutron.plugins.common import constants as service_constants
from neutron.tests.common import helpers
from neutron.tests import fake_notifier
from neutron.tests import tools
from neutron.tests.unit.api import test_extensions
from neutron.tests.unit.db import test_db_base_plugin_v2 as test_plugin
from neutron.tests.unit.extensions import test_agent
from neutron.tests.unit.extensions import test_l3
from neutron.tests.unit import testlib_api
from neutron import wsgi
L3_HOSTA = 'hosta'
DHCP_HOSTA = 'hosta'
L3_HOSTB = 'hostb'
DHCP_HOSTC = 'hostc'
DEVICE_OWNER_COMPUTE = ''.join([constants.DEVICE_OWNER_COMPUTE_PREFIX,
'test:',
DHCP_HOSTA])
class AgentSchedulerTestMixIn(object):
def _request_list(self, path, admin_context=True,
expected_code=exc.HTTPOk.code):
req = self._path_req(path, admin_context=admin_context)
res = req.get_response(self.ext_api)
self.assertEqual(expected_code, res.status_int)
return self.deserialize(self.fmt, res)
def _path_req(self, path, method='GET', data=None,
query_string=None,
admin_context=True):
content_type = 'application/%s' % self.fmt
body = None
if data is not None: # empty dict is valid
body = wsgi.Serializer().serialize(data, content_type)
if admin_context:
return testlib_api.create_request(
path, body, content_type, method, query_string=query_string)
else:
return testlib_api.create_request(
path, body, content_type, method, query_string=query_string,
context=context.Context('', 'tenant_id'))
def _path_create_request(self, path, data, admin_context=True):
return self._path_req(path, method='POST', data=data,
admin_context=admin_context)
def _path_show_request(self, path, admin_context=True):
return self._path_req(path, admin_context=admin_context)
def _path_delete_request(self, path, admin_context=True):
return self._path_req(path, method='DELETE',
admin_context=admin_context)
def _path_update_request(self, path, data, admin_context=True):
return self._path_req(path, method='PUT', data=data,
admin_context=admin_context)
def _list_routers_hosted_by_l3_agent(self, agent_id,
expected_code=exc.HTTPOk.code,
admin_context=True):
path = "/agents/%s/%s.%s" % (agent_id,
l3agentscheduler.L3_ROUTERS,
self.fmt)
return self._request_list(path, expected_code=expected_code,
admin_context=admin_context)
def _list_networks_hosted_by_dhcp_agent(self, agent_id,
expected_code=exc.HTTPOk.code,
admin_context=True):
path = "/agents/%s/%s.%s" % (agent_id,
dhcpagentscheduler.DHCP_NETS,
self.fmt)
return self._request_list(path, expected_code=expected_code,
admin_context=admin_context)
def _list_l3_agents_hosting_router(self, router_id,
expected_code=exc.HTTPOk.code,
admin_context=True):
path = "/routers/%s/%s.%s" % (router_id,
l3agentscheduler.L3_AGENTS,
self.fmt)
return self._request_list(path, expected_code=expected_code,
admin_context=admin_context)
def _list_dhcp_agents_hosting_network(self, network_id,
expected_code=exc.HTTPOk.code,
admin_context=True):
path = "/networks/%s/%s.%s" % (network_id,
dhcpagentscheduler.DHCP_AGENTS,
self.fmt)
return self._request_list(path, expected_code=expected_code,
admin_context=admin_context)
def _add_router_to_l3_agent(self, id, router_id,
expected_code=exc.HTTPCreated.code,
admin_context=True):
path = "/agents/%s/%s.%s" % (id,
l3agentscheduler.L3_ROUTERS,
self.fmt)
req = self._path_create_request(path,
{'router_id': router_id},
admin_context=admin_context)
res = req.get_response(self.ext_api)
self.assertEqual(expected_code, res.status_int)
def _add_network_to_dhcp_agent(self, id, network_id,
expected_code=exc.HTTPCreated.code,
admin_context=True):
path = "/agents/%s/%s.%s" % (id,
dhcpagentscheduler.DHCP_NETS,
self.fmt)
req = self._path_create_request(path,
{'network_id': network_id},
admin_context=admin_context)
res = req.get_response(self.ext_api)
self.assertEqual(expected_code, res.status_int)
def _remove_network_from_dhcp_agent(self, id, network_id,
expected_code=exc.HTTPNoContent.code,
admin_context=True):
path = "/agents/%s/%s/%s.%s" % (id,
dhcpagentscheduler.DHCP_NETS,
network_id,
self.fmt)
req = self._path_delete_request(path,
admin_context=admin_context)
res = req.get_response(self.ext_api)
self.assertEqual(expected_code, res.status_int)
def _remove_router_from_l3_agent(self, id, router_id,
expected_code=exc.HTTPNoContent.code,
admin_context=True):
path = "/agents/%s/%s/%s.%s" % (id,
l3agentscheduler.L3_ROUTERS,
router_id,
self.fmt)
req = self._path_delete_request(path, admin_context=admin_context)
res = req.get_response(self.ext_api)
self.assertEqual(expected_code, res.status_int)
def _assert_notify(self, notifications, expected_event_type):
event_types = [event['event_type'] for event in notifications]
self.assertIn(expected_event_type, event_types)
def test_agent_registration_bad_timestamp(self):
callback = agents_db.AgentExtRpcCallback()
delta_time = datetime.datetime.now() - datetime.timedelta(days=1)
str_time = delta_time.strftime('%Y-%m-%dT%H:%M:%S.%f')
callback.report_state(
self.adminContext,
agent_state={
'agent_state': helpers._get_dhcp_agent_dict(DHCP_HOSTA)},
time=str_time)
def test_agent_registration_invalid_timestamp_allowed(self):
callback = agents_db.AgentExtRpcCallback()
utc_time = datetime.datetime.utcnow()
delta_time = utc_time - datetime.timedelta(seconds=10)
str_time = delta_time.strftime('%Y-%m-%dT%H:%M:%S.%f')
callback.report_state(
self.adminContext,
agent_state={
'agent_state': helpers._get_dhcp_agent_dict(DHCP_HOSTA)},
time=str_time)
def _disable_agent(self, agent_id, admin_state_up=False):
new_agent = {}
new_agent['agent'] = {}
new_agent['agent']['admin_state_up'] = admin_state_up
self._update('agents', agent_id, new_agent)
def _get_agent_id(self, agent_type, host):
agents = self._list_agents()
for agent_data in agents['agents']:
if (agent_data['agent_type'] == agent_type and
agent_data['host'] == host):
return agent_data['id']
class OvsAgentSchedulerTestCaseBase(test_l3.L3NatTestCaseMixin,
test_agent.AgentDBTestMixIn,
AgentSchedulerTestMixIn,
test_plugin.NeutronDbPluginV2TestCase):
fmt = 'json'
l3_plugin = ('neutron.tests.unit.extensions.test_l3.'
'TestL3NatAgentSchedulingServicePlugin')
def setUp(self):
self.useFixture(tools.AttributeMapMemento())
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
# NOTE(ivasilevskaya) mocking this way allows some control over mocked
# client like further method mocking with asserting calls
self.client_mock = mock.MagicMock(name="mocked client")
mock.patch('neutron.common.rpc.get_client'
).start().return_value = self.client_mock
super(OvsAgentSchedulerTestCaseBase, self).setUp(
'ml2', service_plugins=service_plugins)
mock.patch.object(
self.plugin, 'filter_hosts_with_network_access',
side_effect=lambda context, network_id, hosts: hosts).start()
ext_mgr = extensions.PluginAwareExtensionManager.get_instance()
self.ext_api = test_extensions.setup_extensions_middleware(ext_mgr)
self.adminContext = context.get_admin_context()
# Add the resources to the global attribute map
# This is done here as the setup process won't
# initialize the main API router which extends
# the global attribute map
attributes.RESOURCE_ATTRIBUTE_MAP.update(
agent.RESOURCE_ATTRIBUTE_MAP)
self.l3plugin = manager.NeutronManager.get_service_plugins().get(
service_constants.L3_ROUTER_NAT)
self.l3_notify_p = mock.patch(
'neutron.extensions.l3agentscheduler.notify')
self.patched_l3_notify = self.l3_notify_p.start()
self.l3_periodic_p = mock.patch('neutron.db.l3_agentschedulers_db.'
'L3AgentSchedulerDbMixin.'
'add_periodic_l3_agent_status_check')
self.patched_l3_periodic = self.l3_periodic_p.start()
self.dhcp_notify_p = mock.patch(
'neutron.extensions.dhcpagentscheduler.notify')
self.patched_dhcp_notify = self.dhcp_notify_p.start()
class OvsAgentSchedulerTestCase(OvsAgentSchedulerTestCaseBase):
def test_report_states(self):
self._register_agent_states()
agents = self._list_agents()
self.assertEqual(4, len(agents['agents']))
def test_network_scheduling_on_network_creation(self):
self._register_agent_states()
with self.network() as net:
dhcp_agents = self._list_dhcp_agents_hosting_network(
net['network']['id'])
self.assertEqual(0, len(dhcp_agents['agents']))
def test_network_auto_schedule_with_disabled(self):
cfg.CONF.set_override('allow_overlapping_ips', True)
with self.subnet(), self.subnet():
dhcp_rpc_cb = dhcp_rpc.DhcpRpcCallback()
self._register_agent_states()
hosta_id = self._get_agent_id(constants.AGENT_TYPE_DHCP,
DHCP_HOSTA)
hostc_id = self._get_agent_id(constants.AGENT_TYPE_DHCP,
DHCP_HOSTC)
self._disable_agent(hosta_id)
dhcp_rpc_cb.get_active_networks_info(
self.adminContext, host=DHCP_HOSTA)
# second agent will host all the networks since first is disabled.
dhcp_rpc_cb.get_active_networks_info(
self.adminContext, host=DHCP_HOSTC)
networks = self._list_networks_hosted_by_dhcp_agent(hostc_id)
num_hostc_nets = len(networks['networks'])
networks = self._list_networks_hosted_by_dhcp_agent(hosta_id)
num_hosta_nets = len(networks['networks'])
self.assertEqual(0, num_hosta_nets)
self.assertEqual(2, num_hostc_nets)
def test_network_auto_schedule_with_no_dhcp(self):
cfg.CONF.set_override('allow_overlapping_ips', True)
with self.subnet(enable_dhcp=False), self.subnet(enable_dhcp=False):
dhcp_rpc_cb = dhcp_rpc.DhcpRpcCallback()
self._register_agent_states()
hosta_id = self._get_agent_id(constants.AGENT_TYPE_DHCP,
DHCP_HOSTA)
hostc_id = self._get_agent_id(constants.AGENT_TYPE_DHCP,
DHCP_HOSTC)
self._disable_agent(hosta_id)
dhcp_rpc_cb.get_active_networks_info(
self.adminContext, host=DHCP_HOSTA)
dhcp_rpc_cb.get_active_networks_info(
self.adminContext, host=DHCP_HOSTC)
networks = self._list_networks_hosted_by_dhcp_agent(hostc_id)
num_hostc_nets = len(networks['networks'])
networks = self._list_networks_hosted_by_dhcp_agent(hosta_id)
num_hosta_nets = len(networks['networks'])
self.assertEqual(0, num_hosta_nets)
self.assertEqual(0, num_hostc_nets)
def test_network_auto_schedule_with_multiple_agents(self):
cfg.CONF.set_override('dhcp_agents_per_network', 2)
cfg.CONF.set_override('allow_overlapping_ips', True)
with self.subnet(), self.subnet():
dhcp_rpc_cb = dhcp_rpc.DhcpRpcCallback()
self._register_agent_states()
hosta_id = self._get_agent_id(constants.AGENT_TYPE_DHCP,
DHCP_HOSTA)
hostc_id = self._get_agent_id(constants.AGENT_TYPE_DHCP,
DHCP_HOSTC)
dhcp_rpc_cb.get_active_networks_info(
self.adminContext, host=DHCP_HOSTA)
dhcp_rpc_cb.get_active_networks_info(
self.adminContext, host=DHCP_HOSTC)
networks = self._list_networks_hosted_by_dhcp_agent(hostc_id)
num_hostc_nets = len(networks['networks'])
networks = self._list_networks_hosted_by_dhcp_agent(hosta_id)
num_hosta_nets = len(networks['networks'])
self.assertEqual(2, num_hosta_nets)
self.assertEqual(2, num_hostc_nets)
def test_network_auto_schedule_restart_dhcp_agent(self):
cfg.CONF.set_override('dhcp_agents_per_network', 2)
with self.subnet() as sub1:
dhcp_rpc_cb = dhcp_rpc.DhcpRpcCallback()
self._register_agent_states()
dhcp_rpc_cb.get_active_networks_info(
self.adminContext, host=DHCP_HOSTA)
dhcp_rpc_cb.get_active_networks_info(
self.adminContext, host=DHCP_HOSTA)
dhcp_agents = self._list_dhcp_agents_hosting_network(
sub1['subnet']['network_id'])
self.assertEqual(1, len(dhcp_agents['agents']))
def test_network_auto_schedule_with_hosted(self):
# one agent hosts all the networks, other hosts none
cfg.CONF.set_override('allow_overlapping_ips', True)
with self.subnet() as sub1, self.subnet():
dhcp_rpc_cb = dhcp_rpc.DhcpRpcCallback()
self._register_agent_states()
dhcp_rpc_cb.get_active_networks_info(
self.adminContext, host=DHCP_HOSTA)
# second agent will not host the network since first has got it.
dhcp_rpc_cb.get_active_networks_info(
self.adminContext, host=DHCP_HOSTC)
dhcp_agents = self._list_dhcp_agents_hosting_network(
sub1['subnet']['network_id'])
hosta_id = self._get_agent_id(constants.AGENT_TYPE_DHCP,
DHCP_HOSTA)
hostc_id = self._get_agent_id(constants.AGENT_TYPE_DHCP,
DHCP_HOSTC)
hosta_nets = self._list_networks_hosted_by_dhcp_agent(hosta_id)
num_hosta_nets = len(hosta_nets['networks'])
hostc_nets = self._list_networks_hosted_by_dhcp_agent(hostc_id)
num_hostc_nets = len(hostc_nets['networks'])
self.assertEqual(2, num_hosta_nets)
self.assertEqual(0, num_hostc_nets)
self.assertEqual(1, len(dhcp_agents['agents']))
self.assertEqual(DHCP_HOSTA, dhcp_agents['agents'][0]['host'])
def test_network_auto_schedule_with_hosted_2(self):
# one agent hosts one network
dhcp_rpc_cb = dhcp_rpc.DhcpRpcCallback()
cfg.CONF.set_override('allow_overlapping_ips', True)
with self.subnet() as sub1:
helpers.register_dhcp_agent(DHCP_HOSTA)
dhcp_rpc_cb.get_active_networks_info(
self.adminContext, host=DHCP_HOSTA)
hosta_id = self._get_agent_id(constants.AGENT_TYPE_DHCP,
DHCP_HOSTA)
self._disable_agent(hosta_id, admin_state_up=False)
with self.subnet() as sub2:
helpers.register_dhcp_agent(DHCP_HOSTC)
dhcp_rpc_cb.get_active_networks_info(self.adminContext,
host=DHCP_HOSTC)
dhcp_agents_1 = self._list_dhcp_agents_hosting_network(
sub1['subnet']['network_id'])
dhcp_agents_2 = self._list_dhcp_agents_hosting_network(
sub2['subnet']['network_id'])
hosta_nets = self._list_networks_hosted_by_dhcp_agent(hosta_id)
num_hosta_nets = len(hosta_nets['networks'])
hostc_id = self._get_agent_id(
constants.AGENT_TYPE_DHCP,
DHCP_HOSTC)
hostc_nets = self._list_networks_hosted_by_dhcp_agent(hostc_id)
num_hostc_nets = len(hostc_nets['networks'])
self.assertEqual(1, num_hosta_nets)
self.assertEqual(1, num_hostc_nets)
self.assertEqual(1, len(dhcp_agents_1['agents']))
self.assertEqual(1, len(dhcp_agents_2['agents']))
self.assertEqual(DHCP_HOSTA, dhcp_agents_1['agents'][0]['host'])
self.assertEqual(DHCP_HOSTC, dhcp_agents_2['agents'][0]['host'])
def test_network_scheduling_on_port_creation(self):
with self.subnet() as subnet:
dhcp_agents = self._list_dhcp_agents_hosting_network(
subnet['subnet']['network_id'])
result0 = len(dhcp_agents['agents'])
self._register_agent_states()
with self.port(subnet=subnet,
device_owner=DEVICE_OWNER_COMPUTE) as port:
dhcp_agents = self._list_dhcp_agents_hosting_network(
port['port']['network_id'])
result1 = len(dhcp_agents['agents'])
self.assertEqual(0, result0)
self.assertEqual(1, result1)
def test_network_ha_scheduling_on_port_creation(self):
cfg.CONF.set_override('dhcp_agents_per_network', 2)
with self.subnet() as subnet:
dhcp_agents = self._list_dhcp_agents_hosting_network(
subnet['subnet']['network_id'])
result0 = len(dhcp_agents['agents'])
self._register_agent_states()
with self.port(subnet=subnet,
device_owner=DEVICE_OWNER_COMPUTE) as port:
dhcp_agents = self._list_dhcp_agents_hosting_network(
port['port']['network_id'])
result1 = len(dhcp_agents['agents'])
self.assertEqual(0, result0)
self.assertEqual(2, result1)
def test_network_ha_scheduling_on_port_creation_with_new_agent(self):
cfg.CONF.set_override('dhcp_agents_per_network', 3)
with self.subnet() as subnet:
dhcp_agents = self._list_dhcp_agents_hosting_network(
subnet['subnet']['network_id'])
result0 = len(dhcp_agents['agents'])
self._register_agent_states()
with self.port(subnet=subnet,
device_owner=DEVICE_OWNER_COMPUTE) as port:
dhcp_agents = self._list_dhcp_agents_hosting_network(
port['port']['network_id'])
result1 = len(dhcp_agents['agents'])
helpers.register_dhcp_agent('host1')
with self.port(subnet=subnet,
device_owner=DEVICE_OWNER_COMPUTE) as port:
dhcp_agents = self._list_dhcp_agents_hosting_network(
port['port']['network_id'])
result2 = len(dhcp_agents['agents'])
self.assertEqual(0, result0)
self.assertEqual(2, result1)
self.assertEqual(3, result2)
def test_network_scheduler_with_disabled_agent(self):
helpers.register_dhcp_agent(DHCP_HOSTA)
with self.port() as port1:
dhcp_agents = self._list_dhcp_agents_hosting_network(
port1['port']['network_id'])
self._delete('ports', port1['port']['id'])
self._delete('networks', port1['port']['network_id'])
self.assertEqual(1, len(dhcp_agents['agents']))
agents = self._list_agents()
self._disable_agent(agents['agents'][0]['id'])
with self.port() as port2:
dhcp_agents = self._list_dhcp_agents_hosting_network(
port2['port']['network_id'])
self._delete('ports', port2['port']['id'])
self.assertEqual(0, len(dhcp_agents['agents']))
def test_is_eligible_agent(self):
agent_startup = ('neutron.db.agentschedulers_db.'
'DhcpAgentSchedulerDbMixin.agent_starting_up')
is_eligible_agent = ('neutron.db.agentschedulers_db.'
'AgentSchedulerDbMixin.is_eligible_agent')
dhcp_mixin = agentschedulers_db.DhcpAgentSchedulerDbMixin()
with mock.patch(agent_startup) as startup,\
mock.patch(is_eligible_agent) as elig:
tests = [(True, True),
(True, False),
(False, True),
(False, False)]
for rv1, rv2 in tests:
startup.return_value = rv1
elig.return_value = rv2
self.assertEqual(rv1 or rv2,
dhcp_mixin.is_eligible_agent(None,
None, None))
def test_network_scheduler_with_down_agent(self):
helpers.register_dhcp_agent(DHCP_HOSTA)
eligible_agent_str = ('neutron.db.agentschedulers_db.'
'DhcpAgentSchedulerDbMixin.is_eligible_agent')
with mock.patch(eligible_agent_str) as eligible_agent:
eligible_agent.return_value = True
with self.port() as port:
dhcp_agents = self._list_dhcp_agents_hosting_network(
port['port']['network_id'])
self._delete('ports', port['port']['id'])
self._delete('networks', port['port']['network_id'])
self.assertEqual(1, len(dhcp_agents['agents']))
with mock.patch(eligible_agent_str) as eligible_agent:
eligible_agent.return_value = False
with self.port() as port:
dhcp_agents = self._list_dhcp_agents_hosting_network(
port['port']['network_id'])
self._delete('ports', port['port']['id'])
self.assertEqual(0, len(dhcp_agents['agents']))
def test_network_scheduler_with_hosted_network(self):
plugin = manager.NeutronManager.get_plugin()
helpers.register_dhcp_agent(DHCP_HOSTA)
with self.port() as port1:
dhcp_agents = self._list_dhcp_agents_hosting_network(
port1['port']['network_id'])
self.assertEqual(1, len(dhcp_agents['agents']))
with mock.patch.object(plugin,
'get_dhcp_agents_hosting_networks',
autospec=True) as mock_hosting_agents:
mock_hosting_agents.return_value = plugin.get_agents_db(
self.adminContext)
with self.network('test') as net1:
pass
with self.subnet(network=net1,
cidr='10.0.1.0/24') as subnet1:
pass
with self.port(subnet=subnet1) as port2:
pass
dhcp_agents = self._list_dhcp_agents_hosting_network(
port2['port']['network_id'])
self.assertEqual(0, len(dhcp_agents['agents']))
def test_network_policy(self):
with self.network() as net1:
self._register_agent_states()
hosta_id = self._get_agent_id(constants.AGENT_TYPE_DHCP,
DHCP_HOSTA)
self._list_networks_hosted_by_dhcp_agent(
hosta_id, expected_code=exc.HTTPForbidden.code,
admin_context=False)
self._add_network_to_dhcp_agent(
hosta_id, net1['network']['id'],
expected_code=exc.HTTPForbidden.code,
admin_context=False)
self._add_network_to_dhcp_agent(hosta_id,
net1['network']['id'])
self._remove_network_from_dhcp_agent(
hosta_id, net1['network']['id'],
expected_code=exc.HTTPForbidden.code,
admin_context=False)
self._list_dhcp_agents_hosting_network(
net1['network']['id'],
expected_code=exc.HTTPForbidden.code,
admin_context=False)
def _test_network_add_to_dhcp_agent(self, admin_state_up=True):
with self.network() as net1:
self._register_agent_states()
hosta_id = self._get_agent_id(constants.AGENT_TYPE_DHCP,
DHCP_HOSTA)
if not admin_state_up:
self._set_agent_admin_state_up(DHCP_HOSTA, False)
num_before_add = len(
self._list_networks_hosted_by_dhcp_agent(
hosta_id)['networks'])
self._add_network_to_dhcp_agent(hosta_id,
net1['network']['id'])
num_after_add = len(
self._list_networks_hosted_by_dhcp_agent(
hosta_id)['networks'])
self.assertEqual(0, num_before_add)
self.assertEqual(1, num_after_add)
def test_network_add_to_dhcp_agent(self):
self._test_network_add_to_dhcp_agent()
def test_network_add_to_dhcp_agent_with_admin_state_down(self):
cfg.CONF.set_override(
'enable_services_on_agents_with_admin_state_down', True)
self._test_network_add_to_dhcp_agent(admin_state_up=False)
def test_network_remove_from_dhcp_agent(self):
agent = helpers.register_dhcp_agent(DHCP_HOSTA)
hosta_id = agent.id
with self.port() as port1:
num_before_remove = len(
self._list_networks_hosted_by_dhcp_agent(
hosta_id)['networks'])
self._remove_network_from_dhcp_agent(hosta_id,
port1['port']['network_id'])
num_after_remove = len(
self._list_networks_hosted_by_dhcp_agent(
hosta_id)['networks'])
self.assertEqual(1, num_before_remove)
self.assertEqual(0, num_after_remove)
def test_list_active_networks_on_not_registered_yet_dhcp_agent(self):
plugin = manager.NeutronManager.get_plugin()
nets = plugin.list_active_networks_on_active_dhcp_agent(
self.adminContext, host=DHCP_HOSTA)
self.assertEqual([], nets)
def test_reserved_port_after_network_remove_from_dhcp_agent(self):
helpers.register_dhcp_agent(DHCP_HOSTA)
hosta_id = self._get_agent_id(constants.AGENT_TYPE_DHCP,
DHCP_HOSTA)
with self.port(device_owner=constants.DEVICE_OWNER_DHCP,
host=DHCP_HOSTA) as port1:
self._remove_network_from_dhcp_agent(hosta_id,
port1['port']['network_id'])
port_res = self._list_ports(
'json',
200,
network_id=port1['port']['network_id'])
port_list = self.deserialize('json', port_res)
self.assertEqual(port_list['ports'][0]['device_id'],
n_const.DEVICE_ID_RESERVED_DHCP_PORT)
def _test_get_active_networks_from_admin_state_down_agent(self,
keep_services):
if keep_services:
cfg.CONF.set_override(
'enable_services_on_agents_with_admin_state_down', True)
helpers.register_dhcp_agent(DHCP_HOSTA)
dhcp_rpc_cb = dhcp_rpc.DhcpRpcCallback()
with self.port():
nets = dhcp_rpc_cb.get_active_networks_info(self.adminContext,
host=DHCP_HOSTA)
self.assertEqual(1, len(nets))
self._set_agent_admin_state_up(DHCP_HOSTA, False)
nets = dhcp_rpc_cb.get_active_networks_info(self.adminContext,
host=DHCP_HOSTA)
if keep_services:
self.assertEqual(1, len(nets))
else:
self.assertEqual(0, len(nets))
def test_dhcp_agent_keep_services_off(self):
self._test_get_active_networks_from_admin_state_down_agent(False)
def test_dhcp_agent_keep_services_on(self):
self._test_get_active_networks_from_admin_state_down_agent(True)
def _take_down_agent_and_run_reschedule(self, host):
# take down the agent on host A and ensure B is alive
self.adminContext.session.begin(subtransactions=True)
query = self.adminContext.session.query(agents_db.Agent)
agt = query.filter_by(host=host).first()
agt.heartbeat_timestamp = (
agt.heartbeat_timestamp - datetime.timedelta(hours=1))
self.adminContext.session.commit()
plugin = manager.NeutronManager.get_service_plugins().get(
service_constants.L3_ROUTER_NAT)
plugin.reschedule_routers_from_down_agents()
def _set_agent_admin_state_up(self, host, state):
self.adminContext.session.begin(subtransactions=True)
query = self.adminContext.session.query(agents_db.Agent)
agt_db = query.filter_by(host=host).first()
agt_db.admin_state_up = state
self.adminContext.session.commit()
def test_router_rescheduler_catches_rpc_db_and_reschedule_exceptions(self):
with self.router():
l3_rpc_cb = l3_rpc.L3RpcCallback()
self._register_agent_states()
# schedule the router to host A
l3_rpc_cb.get_router_ids(self.adminContext, host=L3_HOSTA)
plugin = manager.NeutronManager.get_service_plugins().get(
service_constants.L3_ROUTER_NAT)
mock.patch.object(
plugin, 'reschedule_router',
side_effect=[
db_exc.DBError(), oslo_messaging.RemoteError(),
l3agentscheduler.RouterReschedulingFailed(router_id='f',
agent_id='f'),
ValueError('this raises'),
Exception()
]).start()
self._take_down_agent_and_run_reschedule(L3_HOSTA) # DBError
self._take_down_agent_and_run_reschedule(L3_HOSTA) # RemoteError
self._take_down_agent_and_run_reschedule(L3_HOSTA) # schedule err
self._take_down_agent_and_run_reschedule(L3_HOSTA) # Value error
self._take_down_agent_and_run_reschedule(L3_HOSTA) # Exception
def test_router_rescheduler_catches_exceptions_on_fetching_bindings(self):
with mock.patch('neutron.context.get_admin_context') as get_ctx:
mock_ctx = mock.Mock()
get_ctx.return_value = mock_ctx
mock_ctx.session.query.side_effect = db_exc.DBError()
plugin = manager.NeutronManager.get_service_plugins().get(
service_constants.L3_ROUTER_NAT)
# check that no exception is raised
plugin.reschedule_routers_from_down_agents()
def test_router_rescheduler_iterates_after_reschedule_failure(self):
plugin = manager.NeutronManager.get_service_plugins().get(
service_constants.L3_ROUTER_NAT)
l3_rpc_cb = l3_rpc.L3RpcCallback()
self._register_agent_states()
with self.router() as r1, self.router() as r2:
# schedule the routers to host A
l3_rpc_cb.get_router_ids(self.adminContext, host=L3_HOSTA)
rs_mock = mock.patch.object(
plugin, 'reschedule_router',
side_effect=l3agentscheduler.RouterReschedulingFailed(
router_id='f', agent_id='f'),
).start()
self._take_down_agent_and_run_reschedule(L3_HOSTA)
# make sure both had a reschedule attempt even though first failed
rs_mock.assert_has_calls([mock.call(mock.ANY, r1['router']['id']),
mock.call(mock.ANY, r2['router']['id'])],
any_order=True)
def test_router_is_not_rescheduled_from_alive_agent(self):
with self.router():
l3_rpc_cb = l3_rpc.L3RpcCallback()
self._register_agent_states()
# schedule the router to host A
l3_rpc_cb.get_router_ids(self.adminContext, host=L3_HOSTA)
with mock.patch('neutron.db.l3_agentschedulers_db.'
'L3AgentSchedulerDbMixin.reschedule_router') as rr:
# take down some unrelated agent and run reschedule check
self._take_down_agent_and_run_reschedule(DHCP_HOSTC)
self.assertFalse(rr.called)
def test_router_is_not_rescheduled_if_agent_is_back_online(self):
plugin = manager.NeutronManager.get_service_plugins().get(
service_constants.L3_ROUTER_NAT)
l3_rpc_cb = l3_rpc.L3RpcCallback()
agent = helpers.register_l3_agent(host=L3_HOSTA)
with self.router(),\
self.router(),\
mock.patch.object(plugin, 'reschedule_router') as rs_mock,\
mock.patch.object(plugin, '_get_agent') as get_agent_mock:
# schedule the routers to the agent
l3_rpc_cb.get_router_ids(self.adminContext, host=L3_HOSTA)
self._take_down_agent_and_run_reschedule(L3_HOSTA)
# since _get_agent is mocked it will return Mock object and
# agent.is_active will return true, so no rescheduling will be done
self.assertFalse(rs_mock.called)
# should be called only once as for second router alive agent id
# will be in cache
get_agent_mock.assert_called_once_with(mock.ANY, agent['id'])
def test_router_reschedule_from_dead_agent(self):
with self.router():
l3_rpc_cb = l3_rpc.L3RpcCallback()
self._register_agent_states()
# schedule the router to host A
ret_a = l3_rpc_cb.get_router_ids(self.adminContext, host=L3_HOSTA)
self._take_down_agent_and_run_reschedule(L3_HOSTA)
# B should now pick up the router
ret_b = l3_rpc_cb.get_router_ids(self.adminContext, host=L3_HOSTB)
self.assertEqual(ret_b, ret_a)
def test_router_no_reschedule_from_dead_admin_down_agent(self):
with self.router() as r:
l3_rpc_cb = l3_rpc.L3RpcCallback()
self._register_agent_states()
# schedule the router to host A
l3_rpc_cb.get_router_ids(self.adminContext, host=L3_HOSTA)
self._set_agent_admin_state_up(L3_HOSTA, False)
self._take_down_agent_and_run_reschedule(L3_HOSTA)
# A should still have it even though it was inactive due to the
# admin_state being down
rab = l3_agentschedulers_db.RouterL3AgentBinding
binding = (self.adminContext.session.query(rab).
filter(rab.router_id == r['router']['id']).first())
self.assertEqual(binding.l3_agent.host, L3_HOSTA)
# B should not pick up the router
ret_b = l3_rpc_cb.get_router_ids(self.adminContext, host=L3_HOSTB)
self.assertFalse(ret_b)
def test_router_reschedule_succeeded_after_failed_notification(self):
l3_rpc_cb = l3_rpc.L3RpcCallback()
self._register_agent_states()
with self.router() as router:
# schedule the router to host A
l3_rpc_cb.get_router_ids(self.adminContext, host=L3_HOSTA)
ctxt_mock = mock.MagicMock()
call_mock = mock.MagicMock(
side_effect=[oslo_messaging.MessagingTimeout, None])
ctxt_mock.call = call_mock
self.client_mock.prepare = mock.MagicMock(return_value=ctxt_mock)
self._take_down_agent_and_run_reschedule(L3_HOSTA)
self.assertEqual(2, call_mock.call_count)
# make sure router was rescheduled even when first attempt
# failed to notify l3 agent
l3_agents = self._list_l3_agents_hosting_router(
router['router']['id'])['agents']
self.assertEqual(1, len(l3_agents))
self.assertEqual(L3_HOSTB, l3_agents[0]['host'])
def test_router_reschedule_failed_notification_all_attempts(self):
l3_rpc_cb = l3_rpc.L3RpcCallback()
self._register_agent_states()
with self.router() as router:
# schedule the router to host A
l3_rpc_cb.get_router_ids(self.adminContext, host=L3_HOSTA)
# mock client.prepare and context.call
ctxt_mock = mock.MagicMock()
call_mock = mock.MagicMock(
side_effect=oslo_messaging.MessagingTimeout)
ctxt_mock.call = call_mock
self.client_mock.prepare = mock.MagicMock(return_value=ctxt_mock)
# perform operations
self._take_down_agent_and_run_reschedule(L3_HOSTA)
self.assertEqual(
l3_rpc_agent_api.AGENT_NOTIFY_MAX_ATTEMPTS,
call_mock.call_count)
l3_agents = self._list_l3_agents_hosting_router(
router['router']['id'])['agents']
self.assertEqual(0, len(l3_agents))
def test_router_auto_schedule_with_invalid_router(self):
with self.router() as router:
l3_rpc_cb = l3_rpc.L3RpcCallback()
self._register_agent_states()
self._delete('routers', router['router']['id'])
# deleted router
ret_a = l3_rpc_cb.sync_routers(self.adminContext, host=L3_HOSTA,
router_ids=[router['router']['id']])
self.assertFalse(ret_a)
# non-existent router
ret_a = l3_rpc_cb.sync_routers(self.adminContext, host=L3_HOSTA,
router_ids=[uuidutils.generate_uuid()])
self.assertFalse(ret_a)
def test_router_auto_schedule_with_hosted(self):
with self.router() as router:
l3_rpc_cb = l3_rpc.L3RpcCallback()
self._register_agent_states()
ret_a = l3_rpc_cb.get_router_ids(self.adminContext, host=L3_HOSTA)
ret_b = l3_rpc_cb.get_router_ids(self.adminContext, host=L3_HOSTB)
l3_agents = self._list_l3_agents_hosting_router(
router['router']['id'])
self.assertEqual(1, len(ret_a))
self.assertIn(router['router']['id'], ret_a)
self.assertFalse(len(ret_b))
self.assertEqual(1, len(l3_agents['agents']))
self.assertEqual(L3_HOSTA, l3_agents['agents'][0]['host'])
def test_router_auto_schedule_restart_l3_agent(self):
with self.router():
l3_rpc_cb = l3_rpc.L3RpcCallback()
self._register_agent_states()
l3_rpc_cb.get_router_ids(self.adminContext, host=L3_HOSTA)
l3_rpc_cb.get_router_ids(self.adminContext, host=L3_HOSTA)
def test_router_auto_schedule_with_hosted_2(self):
# one agent hosts one router
l3_rpc_cb = l3_rpc.L3RpcCallback()
with self.router() as router1:
hosta_id = helpers.register_l3_agent(host=L3_HOSTA).id
l3_rpc_cb.get_router_ids(self.adminContext, host=L3_HOSTA)
self._disable_agent(hosta_id, admin_state_up=False)
with self.router() as router2:
hostb_id = helpers.register_l3_agent(host=L3_HOSTB).id
l3_rpc_cb.get_router_ids(self.adminContext, host=L3_HOSTB)
l3_agents_1 = self._list_l3_agents_hosting_router(
router1['router']['id'])
l3_agents_2 = self._list_l3_agents_hosting_router(
router2['router']['id'])
hosta_routers = self._list_routers_hosted_by_l3_agent(hosta_id)
num_hosta_routers = len(hosta_routers['routers'])
hostb_routers = self._list_routers_hosted_by_l3_agent(hostb_id)
num_hostb_routers = len(hostb_routers['routers'])
self.assertEqual(1, num_hosta_routers)
self.assertEqual(1, num_hostb_routers)
self.assertEqual(1, len(l3_agents_1['agents']))
self.assertEqual(1, len(l3_agents_2['agents']))
self.assertEqual(L3_HOSTA, l3_agents_1['agents'][0]['host'])
self.assertEqual(L3_HOSTB, l3_agents_2['agents'][0]['host'])
def test_router_auto_schedule_with_disabled(self):
with self.router(), self.router():
l3_rpc_cb = l3_rpc.L3RpcCallback()
self._register_agent_states()
hosta_id = self._get_agent_id(constants.AGENT_TYPE_L3,
L3_HOSTA)
hostb_id = self._get_agent_id(constants.AGENT_TYPE_L3,
L3_HOSTB)
self._disable_agent(hosta_id)
# first agent will not host router since it is disabled
l3_rpc_cb.get_router_ids(self.adminContext, host=L3_HOSTA)
# second agent will host all the routers since first is disabled.
l3_rpc_cb.get_router_ids(self.adminContext, host=L3_HOSTB)
hostb_routers = self._list_routers_hosted_by_l3_agent(hostb_id)
num_hostb_routers = len(hostb_routers['routers'])
hosta_routers = self._list_routers_hosted_by_l3_agent(hosta_id)
num_hosta_routers = len(hosta_routers['routers'])
self.assertEqual(2, num_hostb_routers)
self.assertEqual(0, num_hosta_routers)
def test_rpc_sync_routers(self):
l3_rpc_cb = l3_rpc.L3RpcCallback()
self._register_agent_states()
# No routers
ret_a = l3_rpc_cb.sync_routers(self.adminContext, host=L3_HOSTA)
self.assertEqual(0, len(ret_a))
with self.router() as v1, self.router() as v2, self.router() as v3:
routers = (v1, v2, v3)
router_ids = [r['router']['id'] for r in routers]
# auto schedule routers first
l3_rpc_cb.get_router_ids(self.adminContext, host=L3_HOSTA)
# Get all routers
ret_a = l3_rpc_cb.sync_routers(self.adminContext, host=L3_HOSTA)
self.assertEqual(3, len(ret_a))
self.assertEqual(set(router_ids), set([r['id'] for r in ret_a]))
# Get all routers (router_ids=None)
ret_a = l3_rpc_cb.sync_routers(self.adminContext, host=L3_HOSTA,
router_ids=None)
self.assertEqual(3, len(ret_a))
self.assertEqual(set(router_ids), set([r['id'] for r in ret_a]))
# Get router2 only
ret_a = l3_rpc_cb.sync_routers(self.adminContext, host=L3_HOSTA,
router_ids=[router_ids[1]])
self.assertEqual(1, len(ret_a))
self.assertIn(router_ids[1], [r['id'] for r in ret_a])
# Get router1 and router3
ret_a = l3_rpc_cb.sync_routers(self.adminContext, host=L3_HOSTA,
router_ids=[router_ids[0],
router_ids[2]])
self.assertEqual(2, len(ret_a))
self.assertIn(router_ids[0], [r['id'] for r in ret_a])
self.assertIn(router_ids[2], [r['id'] for r in ret_a])
def test_sync_router(self):
l3_rpc_cb = l3_rpc.L3RpcCallback()
self._register_agent_states()
hosta_id = self._get_agent_id(constants.AGENT_TYPE_L3, L3_HOSTA)
with self.router() as r1:
ret_a = l3_rpc_cb.sync_routers(self.adminContext, host=L3_HOSTA,
router_ids=[r1['router']['id']])
# Not return router to agent if the router is not bound to it.
self.assertEqual([], ret_a)
host_routers = self._list_routers_hosted_by_l3_agent(hosta_id)
# No router will be auto scheduled.
self.assertEqual(0, len(host_routers['routers']))
def test_sync_dvr_router(self):
l3_rpc_cb = l3_rpc.L3RpcCallback()
dvr_agents = self._register_dvr_agents()
with self.router() as r1, \
mock.patch.object(self.l3plugin, 'get_subnet_ids_on_router',
return_value=['fake_subnet_id']), \
mock.patch.object(self.l3plugin,
'_check_dvr_serviceable_ports_on_host',
return_value=True):
for l3_agent in dvr_agents:
host = l3_agent['host']
ret_a = l3_rpc_cb.sync_routers(self.adminContext, host=host,
router_ids=[r1['router']['id']])
router_ids = [r['id'] for r in ret_a]
# Return router to agent if there is dvr service port in agent.
self.assertIn(r1['router']['id'], router_ids)
host_routers = self._list_routers_hosted_by_l3_agent(
l3_agent['id'])
# No router will be auto scheduled.
self.assertEqual(0, len(host_routers['routers']))
def test_router_without_l3_agents(self):
with self.subnet() as s:
self._set_net_external(s['subnet']['network_id'])
data = {'router': {'tenant_id': uuidutils.generate_uuid()}}
data['router']['name'] = 'router1'
data['router']['external_gateway_info'] = {
'network_id': s['subnet']['network_id']}
router_req = self.new_create_request('routers', data, self.fmt)
res = router_req.get_response(self.ext_api)
router = self.deserialize(self.fmt, res)
l3agents = (
self.l3plugin.get_l3_agents_hosting_routers(
self.adminContext, [router['router']['id']]))
self._delete('routers', router['router']['id'])
self.assertEqual(0, len(l3agents))
def test_dvr_router_scheduling_to_only_dvr_snat_agent(self):
self._register_dvr_agents()
with self.subnet() as s:
net_id = s['subnet']['network_id']
self._set_net_external(net_id)
router = {'name': 'router1',
'external_gateway_info': {'network_id': net_id},
'tenant_id': 'tenant_id',
'admin_state_up': True,
'distributed': True}
r = self.l3plugin.create_router(self.adminContext,
{'router': router})
with mock.patch.object(
self.l3plugin,
'_check_dvr_serviceable_ports_on_host') as ports_exist:
# emulating dvr serviceable ports exist on compute node
ports_exist.return_value = True
self.l3plugin.schedule_router(
self.adminContext, r['id'])
l3agents = self._list_l3_agents_hosting_router(r['id'])
self.assertEqual(1, len(l3agents['agents']))
agent = l3agents['agents'][0]
self.assertEqual('dvr_snat',
agent['configurations']['agent_mode'])
def test_dvr_router_csnat_rescheduling(self):
helpers.register_l3_agent(
host=L3_HOSTA, agent_mode=constants.L3_AGENT_MODE_DVR_SNAT)
helpers.register_l3_agent(
host=L3_HOSTB, agent_mode=constants.L3_AGENT_MODE_DVR_SNAT)
with self.subnet() as s:
net_id = s['subnet']['network_id']
self._set_net_external(net_id)
router = {'name': 'router1',
'external_gateway_info': {'network_id': net_id},
'tenant_id': 'tenant_id',
'admin_state_up': True,
'distributed': True}
r = self.l3plugin.create_router(self.adminContext,
{'router': router})
self.l3plugin.schedule_router(
self.adminContext, r['id'])
l3agents = self._list_l3_agents_hosting_router(r['id'])
self.assertEqual(1, len(l3agents['agents']))
agent_host = l3agents['agents'][0]['host']
self._take_down_agent_and_run_reschedule(agent_host)
l3agents = self._list_l3_agents_hosting_router(r['id'])
self.assertEqual(1, len(l3agents['agents']))
new_agent_host = l3agents['agents'][0]['host']
self.assertNotEqual(agent_host, new_agent_host)
def test_dvr_router_manual_rescheduling(self):
helpers.register_l3_agent(
host=L3_HOSTA, agent_mode=constants.L3_AGENT_MODE_DVR_SNAT)
helpers.register_l3_agent(
host=L3_HOSTB, agent_mode=constants.L3_AGENT_MODE_DVR_SNAT)
with self.subnet() as s:
net_id = s['subnet']['network_id']
self._set_net_external(net_id)
router = {'name': 'router1',
'external_gateway_info': {'network_id': net_id},
'tenant_id': 'tenant_id',
'admin_state_up': True,
'distributed': True}
r = self.l3plugin.create_router(self.adminContext,
{'router': router})
self.l3plugin.schedule_router(
self.adminContext, r['id'])
l3agents = self.l3plugin.list_l3_agents_hosting_router(
self.adminContext, r['id'])
self.assertEqual(1, len(l3agents['agents']))
agent = l3agents['agents'][0]
# NOTE: Removing the router from the l3_agent will
# remove all the namespace since there is no other
# serviceable ports in the node that requires it.
self.l3plugin.remove_router_from_l3_agent(
self.adminContext, agent['id'], r['id'])
l3agents = self.l3plugin.list_l3_agents_hosting_router(
self.adminContext, r['id'])
self.assertEqual(0, len(l3agents['agents']))
self.l3plugin.add_router_to_l3_agent(
self.adminContext, agent['id'], r['id'])
l3agents = self.l3plugin.list_l3_agents_hosting_router(
self.adminContext, r['id'])
self.assertEqual(1, len(l3agents['agents']))
new_agent = l3agents['agents'][0]
self.assertEqual(agent['id'], new_agent['id'])
def test_router_sync_data(self):
with self.subnet() as s1,\
self.subnet(cidr='10.0.2.0/24') as s2,\
self.subnet(cidr='10.0.3.0/24') as s3:
self._register_agent_states()
self._set_net_external(s1['subnet']['network_id'])
data = {'router': {'tenant_id': uuidutils.generate_uuid()}}
data['router']['name'] = 'router1'
data['router']['external_gateway_info'] = {
'network_id': s1['subnet']['network_id']}
router_req = self.new_create_request('routers', data, self.fmt)
res = router_req.get_response(self.ext_api)
router = self.deserialize(self.fmt, res)
self._router_interface_action('add',
router['router']['id'],
s2['subnet']['id'],
None)
self._router_interface_action('add',
router['router']['id'],
s3['subnet']['id'],
None)
l3agents = self._list_l3_agents_hosting_router(
router['router']['id'])
self.assertEqual(1, len(l3agents['agents']))
agents = self._list_agents()
another_l3_agent_id = None
another_l3_agent_host = None
default = l3agents['agents'][0]['id']
for com in agents['agents']:
if (com['id'] != default and
com['agent_type'] == constants.AGENT_TYPE_L3):
another_l3_agent_id = com['id']
another_l3_agent_host = com['host']
break
self.assertIsNotNone(another_l3_agent_id)
self._add_router_to_l3_agent(another_l3_agent_id,
router['router']['id'],
expected_code=exc.HTTPConflict.code)
self._remove_router_from_l3_agent(default,
router['router']['id'])
self._add_router_to_l3_agent(another_l3_agent_id,
router['router']['id'])
l3agents = self._list_l3_agents_hosting_router(
router['router']['id'])
self.assertEqual(another_l3_agent_host,
l3agents['agents'][0]['host'])
self._remove_router_from_l3_agent(another_l3_agent_id,
router['router']['id'])
self._router_interface_action('remove',
router['router']['id'],
s2['subnet']['id'],
None)
l3agents = self._list_l3_agents_hosting_router(
router['router']['id'])
self.assertEqual(1,
len(l3agents['agents']))
self._router_interface_action('remove',
router['router']['id'],
s3['subnet']['id'],
None)
self._delete('routers', router['router']['id'])
def _test_router_add_to_l3_agent(self, admin_state_up=True):
with self.router() as router1:
self._register_agent_states()
hosta_id = self._get_agent_id(constants.AGENT_TYPE_L3,
L3_HOSTA)
if not admin_state_up:
self._set_agent_admin_state_up(L3_HOSTA, False)
num_before_add = len(
self._list_routers_hosted_by_l3_agent(
hosta_id)['routers'])
self._add_router_to_l3_agent(hosta_id,
router1['router']['id'])
hostb_id = self._get_agent_id(constants.AGENT_TYPE_L3,
L3_HOSTB)
self._add_router_to_l3_agent(hostb_id,
router1['router']['id'],
expected_code=exc.HTTPConflict.code)
num_after_add = len(
self._list_routers_hosted_by_l3_agent(
hosta_id)['routers'])
self.assertEqual(0, num_before_add)
self.assertEqual(1, num_after_add)
def test_router_add_to_l3_agent(self):
self._test_router_add_to_l3_agent()
def test_router_add_to_l3_agent_with_admin_state_down(self):
cfg.CONF.set_override(
'enable_services_on_agents_with_admin_state_down', True)
self._test_router_add_to_l3_agent(admin_state_up=False)
def test_router_add_to_l3_agent_two_times(self):
with self.router() as router1:
self._register_agent_states()
hosta_id = self._get_agent_id(constants.AGENT_TYPE_L3,
L3_HOSTA)
self._add_router_to_l3_agent(hosta_id,
router1['router']['id'])
# scheduling twice on the same agent is fine
self._add_router_to_l3_agent(hosta_id,
router1['router']['id'])
def test_router_add_to_two_l3_agents(self):
with self.router() as router1:
self._register_agent_states()
hosta_id = self._get_agent_id(constants.AGENT_TYPE_L3,
L3_HOSTA)
hostb_id = self._get_agent_id(constants.AGENT_TYPE_L3,
L3_HOSTB)
self._add_router_to_l3_agent(hosta_id,
router1['router']['id'])
self._add_router_to_l3_agent(hostb_id,
router1['router']['id'],
expected_code=exc.HTTPConflict.code)
def test_router_policy(self):
with self.router() as router1:
self._register_agent_states()
hosta_id = self._get_agent_id(constants.AGENT_TYPE_L3,
L3_HOSTA)
self._list_routers_hosted_by_l3_agent(
hosta_id, expected_code=exc.HTTPForbidden.code,
admin_context=False)
self._add_router_to_l3_agent(
hosta_id, router1['router']['id'],
expected_code=exc.HTTPForbidden.code,
admin_context=False)
self._add_router_to_l3_agent(
hosta_id, router1['router']['id'])
self._remove_router_from_l3_agent(
hosta_id, router1['router']['id'],
expected_code=exc.HTTPForbidden.code,
admin_context=False)
self._list_l3_agents_hosting_router(
router1['router']['id'],
expected_code=exc.HTTPForbidden.code,
admin_context=False)
def _test_sync_routers_from_admin_state_down_agent(self, keep_services):
if keep_services:
cfg.CONF.set_override(
'enable_services_on_agents_with_admin_state_down', True)
l3_rpc_cb = l3_rpc.L3RpcCallback()
self._register_agent_states()
hosta_id = self._get_agent_id(constants.AGENT_TYPE_L3, L3_HOSTA)
with self.router() as router:
self._add_router_to_l3_agent(hosta_id,
router['router']['id'])
routers = l3_rpc_cb.sync_routers(self.adminContext, host=L3_HOSTA)
self.assertEqual(1, len(routers))
self._set_agent_admin_state_up(L3_HOSTA, False)
routers = l3_rpc_cb.sync_routers(self.adminContext, host=L3_HOSTA)
if keep_services:
self.assertEqual(1, len(routers))
else:
self.assertEqual(0, len(routers))
def test_l3_agent_keep_services_off(self):
self._test_sync_routers_from_admin_state_down_agent(False)
def test_l3_agent_keep_services_on(self):
self._test_sync_routers_from_admin_state_down_agent(True)
def test_list_routers_hosted_by_l3_agent_with_invalid_agent(self):
invalid_agentid = 'non_existing_agent'
self._list_routers_hosted_by_l3_agent(invalid_agentid,
exc.HTTPNotFound.code)
def test_list_networks_hosted_by_dhcp_agent_with_invalid_agent(self):
invalid_agentid = 'non_existing_agent'
self._list_networks_hosted_by_dhcp_agent(invalid_agentid,
exc.HTTPNotFound.code)
class OvsDhcpAgentNotifierTestCase(test_agent.AgentDBTestMixIn,
AgentSchedulerTestMixIn,
test_plugin.NeutronDbPluginV2TestCase):
def setUp(self):
self.useFixture(tools.AttributeMapMemento())
super(OvsDhcpAgentNotifierTestCase, self).setUp('ml2')
mock.patch.object(
self.plugin, 'filter_hosts_with_network_access',
side_effect=lambda context, network_id, hosts: hosts).start()
plugin = manager.NeutronManager.get_plugin()
self.dhcp_notifier = plugin.agent_notifiers[constants.AGENT_TYPE_DHCP]
self.dhcp_notifier_cast = mock.patch(
'neutron.api.rpc.agentnotifiers.dhcp_rpc_agent_api.'
'DhcpAgentNotifyAPI._cast_message').start()
ext_mgr = extensions.PluginAwareExtensionManager.get_instance()
self.ext_api = test_extensions.setup_extensions_middleware(ext_mgr)
self.adminContext = context.get_admin_context()
# Add the resources to the global attribute map
# This is done here as the setup process won't
# initialize the main API router which extends
# the global attribute map
attributes.RESOURCE_ATTRIBUTE_MAP.update(
agent.RESOURCE_ATTRIBUTE_MAP)
fake_notifier.reset()
def test_network_add_to_dhcp_agent_notification(self):
with self.network() as net1:
network_id = net1['network']['id']
self._register_agent_states()
hosta_id = self._get_agent_id(constants.AGENT_TYPE_DHCP,
DHCP_HOSTA)
self._add_network_to_dhcp_agent(hosta_id,
network_id)
self.dhcp_notifier_cast.assert_called_with(
mock.ANY, 'network_create_end',
{'network': {'id': network_id}}, DHCP_HOSTA)
notifications = fake_notifier.NOTIFICATIONS
expected_event_type = 'dhcp_agent.network.add'
self._assert_notify(notifications, expected_event_type)
def test_network_remove_from_dhcp_agent_notification(self):
with self.network() as net1:
network_id = net1['network']['id']
self._register_agent_states()
hosta_id = self._get_agent_id(constants.AGENT_TYPE_DHCP,
DHCP_HOSTA)
self._add_network_to_dhcp_agent(hosta_id,
network_id)
self._remove_network_from_dhcp_agent(hosta_id,
network_id)
self.dhcp_notifier_cast.assert_called_with(
mock.ANY, 'network_delete_end',
{'network_id': network_id}, DHCP_HOSTA)
notifications = fake_notifier.NOTIFICATIONS
expected_event_type = 'dhcp_agent.network.remove'
self._assert_notify(notifications, expected_event_type)
def test_agent_updated_dhcp_agent_notification(self):
self._register_agent_states()
hosta_id = self._get_agent_id(constants.AGENT_TYPE_DHCP,
DHCP_HOSTA)
self._disable_agent(hosta_id, admin_state_up=False)
self.dhcp_notifier_cast.assert_called_with(
mock.ANY, 'agent_updated',
{'admin_state_up': False}, DHCP_HOSTA)
def _network_port_create(
self, hosts, gateway=constants.ATTR_NOT_SPECIFIED, owner=None):
for host in hosts:
helpers.register_dhcp_agent(host)
with self.network() as net1:
with self.subnet(network=net1,
gateway_ip=gateway) as subnet1:
if owner:
with self.port(subnet=subnet1,
device_owner=owner) as port:
return [net1, subnet1, port]
else:
with self.port(subnet=subnet1) as port:
return [net1, subnet1, port]
def _notification_mocks(self, hosts, net, subnet, port):
host_calls = {}
for host in hosts:
expected_calls = [
mock.call(
mock.ANY,
'network_create_end',
{'network': {'id': net['network']['id']}},
host),
mock.call(
mock.ANY,
'subnet_create_end',
subnet,
host, 'dhcp_agent'),
mock.call(
mock.ANY,
'port_create_end',
{'port': port['port']},
host, 'dhcp_agent')]
host_calls[host] = expected_calls
return host_calls
def test_network_port_create_notification(self):
hosts = [DHCP_HOSTA]
net, subnet, port = self._network_port_create(hosts)
expected_calls = self._notification_mocks(hosts, net, subnet, port)
self.assertEqual(
expected_calls[DHCP_HOSTA], self.dhcp_notifier_cast.call_args_list)
def test_network_ha_port_create_notification(self):
cfg.CONF.set_override('dhcp_agents_per_network', 2)
hosts = [DHCP_HOSTA, DHCP_HOSTC]
net, subnet, port = self._network_port_create(hosts)
expected_calls = self._notification_mocks(hosts, net, subnet, port)
for expected in expected_calls[DHCP_HOSTA]:
self.assertIn(expected, self.dhcp_notifier_cast.call_args_list)
for expected in expected_calls[DHCP_HOSTC]:
self.assertIn(expected, self.dhcp_notifier_cast.call_args_list)
def _is_schedule_network_called(self, device_id):
dhcp_notifier_schedule = mock.patch(
'neutron.api.rpc.agentnotifiers.dhcp_rpc_agent_api.'
'DhcpAgentNotifyAPI._schedule_network').start()
plugin = manager.NeutronManager.get_plugin()
with self.subnet() as subnet,\
self.port(subnet=subnet, device_id=device_id),\
mock.patch.object(plugin,
'get_dhcp_agents_hosting_networks',
return_value=[]):
return dhcp_notifier_schedule.call_count > 1
def test_reserved_dhcp_port_creation(self):
device_id = n_const.DEVICE_ID_RESERVED_DHCP_PORT
self.assertFalse(self._is_schedule_network_called(device_id))
def test_unreserved_dhcp_port_creation(self):
device_id = 'not_reserved'
self.assertTrue(self._is_schedule_network_called(device_id))
class OvsL3AgentNotifierTestCase(test_l3.L3NatTestCaseMixin,
test_agent.AgentDBTestMixIn,
AgentSchedulerTestMixIn,
test_plugin.NeutronDbPluginV2TestCase):
l3_plugin = ('neutron.tests.unit.extensions.test_l3.'
'TestL3NatAgentSchedulingServicePlugin')
def setUp(self):
self.dhcp_notifier_cls_p = mock.patch(
'neutron.api.rpc.agentnotifiers.dhcp_rpc_agent_api.'
'DhcpAgentNotifyAPI')
self.dhcp_notifier = mock.Mock(name='dhcp_notifier')
self.dhcp_notifier_cls = self.dhcp_notifier_cls_p.start()
self.dhcp_notifier_cls.return_value = self.dhcp_notifier
self.useFixture(tools.AttributeMapMemento())
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(OvsL3AgentNotifierTestCase, self).setUp(
'ml2', service_plugins=service_plugins)
ext_mgr = extensions.PluginAwareExtensionManager.get_instance()
self.ext_api = test_extensions.setup_extensions_middleware(ext_mgr)
self.adminContext = context.get_admin_context()
# Add the resources to the global attribute map
# This is done here as the setup process won't
# initialize the main API router which extends
# the global attribute map
attributes.RESOURCE_ATTRIBUTE_MAP.update(
agent.RESOURCE_ATTRIBUTE_MAP)
fake_notifier.reset()
def test_router_add_to_l3_agent_notification(self):
l3_plugin = (manager.NeutronManager.get_service_plugins()
[service_constants.L3_ROUTER_NAT])
l3_notifier = l3_plugin.agent_notifiers[constants.AGENT_TYPE_L3]
with mock.patch.object(
l3_notifier.client,
'prepare',
return_value=l3_notifier.client) as mock_prepare,\
mock.patch.object(l3_notifier.client, 'call') as mock_call,\
self.router() as router1:
self._register_agent_states()
hosta_id = self._get_agent_id(constants.AGENT_TYPE_L3,
L3_HOSTA)
self._add_router_to_l3_agent(hosta_id,
router1['router']['id'])
routers = [router1['router']['id']]
mock_prepare.assert_called_with(server='hosta')
mock_call.assert_called_with(
mock.ANY, 'router_added_to_agent', payload=routers)
notifications = fake_notifier.NOTIFICATIONS
expected_event_type = 'l3_agent.router.add'
self._assert_notify(notifications, expected_event_type)
def test_router_remove_from_l3_agent_notification(self):
l3_plugin = (manager.NeutronManager.get_service_plugins()
[service_constants.L3_ROUTER_NAT])
l3_notifier = l3_plugin.agent_notifiers[constants.AGENT_TYPE_L3]
with mock.patch.object(
l3_notifier.client,
'prepare',
return_value=l3_notifier.client) as mock_prepare,\
mock.patch.object(l3_notifier.client, 'cast') as mock_cast,\
mock.patch.object(l3_notifier.client, 'call'),\
self.router() as router1:
self._register_agent_states()
hosta_id = self._get_agent_id(constants.AGENT_TYPE_L3,
L3_HOSTA)
self._add_router_to_l3_agent(hosta_id,
router1['router']['id'])
self._remove_router_from_l3_agent(hosta_id,
router1['router']['id'])
mock_prepare.assert_called_with(server='hosta')
mock_cast.assert_called_with(
mock.ANY, 'router_removed_from_agent',
payload={'router_id': router1['router']['id']})
notifications = fake_notifier.NOTIFICATIONS
expected_event_type = 'l3_agent.router.remove'
self._assert_notify(notifications, expected_event_type)
def test_agent_updated_l3_agent_notification(self):
l3_plugin = (manager.NeutronManager.get_service_plugins()
[service_constants.L3_ROUTER_NAT])
l3_notifier = l3_plugin.agent_notifiers[constants.AGENT_TYPE_L3]
with mock.patch.object(
l3_notifier.client,
'prepare',
return_value=l3_notifier.client) as mock_prepare,\
mock.patch.object(l3_notifier.client, 'cast') as mock_cast:
agent_id = helpers.register_l3_agent(L3_HOSTA).id
self._disable_agent(agent_id, admin_state_up=False)
mock_prepare.assert_called_with(server=L3_HOSTA)
mock_cast.assert_called_with(
mock.ANY, 'agent_updated', payload={'admin_state_up': False})