OpenStack Networking (Neutron)
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# Copyright 2018 Ericsson
#
# 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 functools
from neutron_lib import constants
from neutron.common import utils
from neutron.tests.common import net_helpers
from neutron.tests.fullstack import base
from neutron.tests.fullstack.resources import config as f_const
from neutron.tests.fullstack.resources import environment
from neutron.tests.unit import testlib_api
load_tests = testlib_api.module_load_tests
BR_MAPPINGS = 'bridge_mappings'
DEV_MAPPINGS = 'device_mappings'
def _get_physnet_names_from_mapping(mapping):
physnets = []
for pair in mapping.split(','):
physnets.append(pair.split(':')[0])
return physnets
def _add_new_device_to_agent_config(l2_agent_config, mapping_key_name,
new_dev):
old_bw = l2_agent_config[constants.RP_BANDWIDTHS]
old_mappings = l2_agent_config[mapping_key_name]
if new_dev in old_bw or new_dev in old_mappings:
return
new_mappings = 'physnetnew:%s' % new_dev
new_bw = '%s:%s:%s' % (new_dev,
f_const.MINIMUM_BANDWIDTH_EGRESS_KBPS,
f_const.MINIMUM_BANDWIDTH_INGRESS_KBPS)
l2_agent_config[mapping_key_name] = '%s,%s' % (
old_mappings, new_mappings)
l2_agent_config[constants.RP_BANDWIDTHS] = '%s,%s' % (
old_bw, new_bw)
def _change_agent_conf(l2_agent_config, l2_agent,
mapping_key_name, new_dev):
_add_new_device_to_agent_config(l2_agent_config, mapping_key_name, new_dev)
l2_agent.agent_cfg_fixture.write_config_to_configfile()
def _add_new_bridge_and_restart_agent(host):
l2_agent = host.l2_agent
l2_agent_config = l2_agent.agent_cfg_fixture.config
if 'ovs' in host.agents:
new_dev = utils.get_rand_device_name(prefix='br-new')
_change_agent_conf(
l2_agent_config['ovs'], l2_agent, BR_MAPPINGS, new_dev)
physnets = _get_physnet_names_from_mapping(
l2_agent_config['ovs'][BR_MAPPINGS])
br_phys_new = host.useFixture(
net_helpers.OVSBridgeFixture(new_dev)).bridge
host.connect_to_central_network_via_vlans(br_phys_new)
elif 'sriov' in host.agents:
new_dev = utils.get_rand_device_name(prefix='ens7')
_change_agent_conf(
l2_agent_config['sriov_nic'], l2_agent,
'physical_device_mappings', new_dev)
physnets = _get_physnet_names_from_mapping(
l2_agent_config['sriov_nic']['physical_device_mappings'])
l2_agent.restart()
return physnets
class TestAgentBandwidthReport(base.BaseFullStackTestCase):
scenarios = [
(constants.AGENT_TYPE_OVS,
{'l2_agent_type': constants.AGENT_TYPE_OVS}),
(constants.AGENT_TYPE_NIC_SWITCH,
{'l2_agent_type': constants.AGENT_TYPE_NIC_SWITCH})
]
def setUp(self, env=None):
if not env:
host_desc = [environment.HostDescription(
l3_agent=False,
l2_agent_type=self.l2_agent_type)]
env_desc = environment.EnvironmentDescription(
network_type='vlan',
l2_pop=False,
report_bandwidths=True,
)
env = environment.Environment(env_desc, host_desc)
super(TestAgentBandwidthReport, self).setUp(env)
def _check_agent_configurations(self, agent_id, expected_physnets):
agent = self.client.show_agent(agent_id)['agent']
agent_configurations = agent['configurations']
if 'Open vSwitch' in agent['agent_type']:
mapping_key = BR_MAPPINGS
elif 'NIC Switch' in agent['agent_type']:
mapping_key = DEV_MAPPINGS
else:
return False
for physnet in expected_physnets:
if physnet not in agent_configurations[mapping_key]:
return False
bridge_or_devices = agent_configurations[mapping_key][physnet]
if (constants.RP_BANDWIDTHS not in agent_configurations or
constants.RP_INVENTORY_DEFAULTS not in
agent_configurations):
return False
if mapping_key == BR_MAPPINGS:
if (bridge_or_devices not in
agent_configurations[constants.RP_BANDWIDTHS]):
return False
else:
for device in bridge_or_devices:
if (device not in
agent_configurations[constants.RP_BANDWIDTHS]):
return False
for device in agent_configurations[constants.RP_BANDWIDTHS]:
conf_device = agent_configurations[constants.RP_BANDWIDTHS][device]
if (f_const.MINIMUM_BANDWIDTH_INGRESS_KBPS !=
conf_device['ingress'] and
f_const.MINIMUM_BANDWIDTH_EGRESS_KBPS !=
conf_device[device]['egress']):
return False
return True
def test_agent_configurations(self):
agents = self.client.list_agents()
self.assertEqual(1, len(agents['agents']))
self.assertTrue(agents['agents'][0]['alive'])
agent_config = self.environment.hosts[0].l2_agent.agent_config
if 'ovs' in self.environment.hosts[0].agents:
physnets = _get_physnet_names_from_mapping(
agent_config['ovs'][BR_MAPPINGS])
elif 'sriov' in self.environment.hosts[0].agents:
physnets = _get_physnet_names_from_mapping(
agent_config['sriov_nic']['physical_device_mappings'])
self.assertTrue(
self._check_agent_configurations(agents['agents'][0]['id'],
physnets))
# Add new physnet with bandwidth value to agent config and check
# if after agent restart and report_interval wait it is visible in
# the configurations field.
physnets = _add_new_bridge_and_restart_agent(self.environment.hosts[0])
agents = self.client.list_agents()
l2_agent = agents['agents'][0]
neutron_config = self.environment.hosts[0].l2_agent.neutron_config
report_interval = neutron_config['agent']['report_interval']
check_agent_alive = functools.partial(self._check_agent_configurations,
l2_agent['id'],
physnets)
utils.wait_until_true(
predicate=check_agent_alive,
timeout=float(report_interval) + 10,
sleep=5)
class TestPlacementBandwidthReport(base.BaseFullStackTestCase):
scenarios = [
(constants.AGENT_TYPE_OVS,
{'l2_agent_type': constants.AGENT_TYPE_OVS,
'mech_drivers': 'openvswitch,linuxbridge',
'placement_port': '8080'}),
(constants.AGENT_TYPE_NIC_SWITCH,
{'l2_agent_type': constants.AGENT_TYPE_NIC_SWITCH,
'mech_drivers': 'sriovnicswitch',
'placement_port': '8081'})
]
def setUp(self):
host_desc = [environment.HostDescription(
l3_agent=False,
l2_agent_type=self.l2_agent_type)]
env_desc = environment.EnvironmentDescription(
network_type='vlan',
l2_pop=False,
mech_drivers=self.mech_drivers,
report_bandwidths=True,
has_placement=True,
placement_port=self.placement_port
)
env = environment.Environment(env_desc, host_desc)
super(TestPlacementBandwidthReport, self).setUp(env)
def _check_agent_not_synced(self):
return not self._check_agent_synced()
def _check_agent_synced(self):
agents = self.client.list_agents(agent_type=self.l2_agent_type)
for agent in agents['agents']:
if (agent['id'] == self.original_agent_id and
agent['resources_synced']):
return True
return False
def test_configurations_are_synced_towards_placement(self):
neutron_config = self.environment.hosts[0].l2_agent.neutron_config
report_interval = int(neutron_config['agent']['report_interval'])
agents = self.client.list_agents(agent_type=self.l2_agent_type)
self.assertEqual(1, len(agents['agents']))
self.original_agent_id = agents['agents'][0]['id']
check_agent_synced = functools.partial(self._check_agent_synced)
utils.wait_until_true(
predicate=check_agent_synced,
timeout=report_interval + 10,
sleep=1)
self.environment.placement.process_fixture.stop()
_add_new_bridge_and_restart_agent(self.environment.hosts[0])
check_agent_not_synced = functools.partial(
self._check_agent_not_synced)
utils.wait_until_true(
predicate=check_agent_not_synced,
timeout=report_interval + 10,
sleep=1)
self.environment.placement.process_fixture.start()
check_agent_synced = functools.partial(self._check_agent_synced)
utils.wait_until_true(
predicate=check_agent_synced,
timeout=report_interval + 10,
sleep=1)