251 lines
9.7 KiB
Python
251 lines
9.7 KiB
Python
# Copyright 2015 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 functools
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from neutron_lib import constants
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from oslo_utils import uuidutils
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from neutron.agent.common import ovs_lib
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from neutron.agent.linux import bridge_lib
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from neutron.agent.linux import tc_lib
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from neutron.common import utils
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from neutron.services.qos import qos_consts
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from neutron.tests.common.agents import l2_extensions
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from neutron.tests.fullstack import base
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from neutron.tests.fullstack.resources import environment
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from neutron.tests.fullstack.resources import machine
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from neutron.tests.unit import testlib_api
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from neutron.plugins.ml2.drivers.linuxbridge.agent.common import \
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config as linuxbridge_agent_config
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from neutron.plugins.ml2.drivers.linuxbridge.agent import \
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linuxbridge_neutron_agent as linuxbridge_agent
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from neutron.plugins.ml2.drivers.openvswitch.mech_driver import \
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mech_openvswitch as mech_ovs
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load_tests = testlib_api.module_load_tests
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BANDWIDTH_BURST = 100
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BANDWIDTH_LIMIT = 500
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DSCP_MARK = 16
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class BaseQoSRuleTestCase(base.BaseFullStackTestCase):
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def setUp(self):
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host_desc = [environment.HostDescription(
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l3_agent=False,
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l2_agent_type=self.l2_agent_type)]
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env_desc = environment.EnvironmentDescription(qos=True)
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env = environment.Environment(env_desc, host_desc)
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super(BaseQoSRuleTestCase, self).setUp(env)
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self.tenant_id = uuidutils.generate_uuid()
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self.network = self.safe_client.create_network(self.tenant_id,
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'network-test')
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self.subnet = self.safe_client.create_subnet(
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self.tenant_id, self.network['id'],
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cidr='10.0.0.0/24',
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gateway_ip='10.0.0.1',
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name='subnet-test',
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enable_dhcp=False)
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def _create_qos_policy(self):
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return self.safe_client.create_qos_policy(
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self.tenant_id, 'fs_policy', 'Fullstack testing policy',
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shared='False')
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def _prepare_vm_with_qos_policy(self, rule_add_functions):
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qos_policy = self._create_qos_policy()
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qos_policy_id = qos_policy['id']
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port = self.safe_client.create_port(
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self.tenant_id, self.network['id'],
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self.environment.hosts[0].hostname,
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qos_policy_id)
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for rule_add in rule_add_functions:
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rule_add(qos_policy)
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vm = self.useFixture(
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machine.FakeFullstackMachine(
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self.environment.hosts[0],
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self.network['id'],
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self.tenant_id,
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self.safe_client,
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neutron_port=port))
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return vm, qos_policy
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class TestBwLimitQoS(BaseQoSRuleTestCase):
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scenarios = [
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("ovs", {'l2_agent_type': constants.AGENT_TYPE_OVS}),
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("linuxbridge", {'l2_agent_type': constants.AGENT_TYPE_LINUXBRIDGE})
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]
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def _wait_for_bw_rule_applied_ovs_agent(self, vm, limit, burst):
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utils.wait_until_true(
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lambda: vm.bridge.get_egress_bw_limit_for_port(
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vm.port.name) == (limit, burst))
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def _wait_for_bw_rule_applied_linuxbridge_agent(self, vm, limit, burst):
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port_name = linuxbridge_agent.LinuxBridgeManager.get_tap_device_name(
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vm.neutron_port['id'])
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tc = tc_lib.TcCommand(
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port_name,
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linuxbridge_agent_config.DEFAULT_KERNEL_HZ_VALUE,
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namespace=vm.host.host_namespace
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)
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utils.wait_until_true(
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lambda: tc.get_filters_bw_limits() == (limit, burst))
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def _wait_for_bw_rule_applied(self, vm, limit, burst):
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if isinstance(vm.bridge, ovs_lib.OVSBridge):
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self._wait_for_bw_rule_applied_ovs_agent(vm, limit, burst)
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if isinstance(vm.bridge, bridge_lib.BridgeDevice):
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self._wait_for_bw_rule_applied_linuxbridge_agent(vm, limit, burst)
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def _wait_for_bw_rule_removed(self, vm):
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# No values are provided when port doesn't have qos policy
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self._wait_for_bw_rule_applied(vm, None, None)
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def _add_bw_limit_rule(self, limit, burst, qos_policy):
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qos_policy_id = qos_policy['id']
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rule = self.safe_client.create_bandwidth_limit_rule(
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self.tenant_id, qos_policy_id, limit, burst)
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# Make it consistent with GET reply
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rule['type'] = qos_consts.RULE_TYPE_BANDWIDTH_LIMIT
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rule['qos_policy_id'] = qos_policy_id
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qos_policy['rules'].append(rule)
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def test_bw_limit_qos_policy_rule_lifecycle(self):
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new_limit = BANDWIDTH_LIMIT + 100
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# Create port with qos policy attached
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vm, qos_policy = self._prepare_vm_with_qos_policy(
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[functools.partial(self._add_bw_limit_rule,
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BANDWIDTH_LIMIT, BANDWIDTH_BURST)])
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bw_rule = qos_policy['rules'][0]
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self._wait_for_bw_rule_applied(vm, BANDWIDTH_LIMIT, BANDWIDTH_BURST)
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qos_policy_id = qos_policy['id']
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self.client.delete_bandwidth_limit_rule(bw_rule['id'], qos_policy_id)
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self._wait_for_bw_rule_removed(vm)
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# Create new rule with no given burst value, in such case ovs and lb
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# agent should apply burst value as
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# bandwidth_limit * qos_consts.DEFAULT_BURST_RATE
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new_expected_burst = int(
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new_limit * qos_consts.DEFAULT_BURST_RATE
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)
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new_rule = self.safe_client.create_bandwidth_limit_rule(
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self.tenant_id, qos_policy_id, new_limit)
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self._wait_for_bw_rule_applied(vm, new_limit, new_expected_burst)
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# Update qos policy rule id
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self.client.update_bandwidth_limit_rule(
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new_rule['id'], qos_policy_id,
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body={'bandwidth_limit_rule': {'max_kbps': BANDWIDTH_LIMIT,
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'max_burst_kbps': BANDWIDTH_BURST}})
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self._wait_for_bw_rule_applied(vm, BANDWIDTH_LIMIT, BANDWIDTH_BURST)
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# Remove qos policy from port
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self.client.update_port(
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vm.neutron_port['id'],
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body={'port': {'qos_policy_id': None}})
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self._wait_for_bw_rule_removed(vm)
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class TestDscpMarkingQoS(BaseQoSRuleTestCase):
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def setUp(self):
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self.l2_agent_type = constants.AGENT_TYPE_OVS
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super(TestDscpMarkingQoS, self).setUp()
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def _wait_for_dscp_marking_rule_applied(self, vm, dscp_mark):
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l2_extensions.wait_until_dscp_marking_rule_applied(
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vm.bridge, vm.port.name, dscp_mark)
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def _wait_for_dscp_marking_rule_removed(self, vm):
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self._wait_for_dscp_marking_rule_applied(vm, None)
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def _add_dscp_rule(self, dscp_mark, qos_policy):
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qos_policy_id = qos_policy['id']
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rule = self.safe_client.create_dscp_marking_rule(
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self.tenant_id, qos_policy_id, dscp_mark)
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# Make it consistent with GET reply
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rule['type'] = qos_consts.RULE_TYPE_DSCP_MARKING
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rule['qos_policy_id'] = qos_policy_id
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qos_policy['rules'].append(rule)
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def test_dscp_qos_policy_rule_lifecycle(self):
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new_dscp_mark = DSCP_MARK + 8
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# Create port with qos policy attached
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vm, qos_policy = self._prepare_vm_with_qos_policy(
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[functools.partial(self._add_dscp_rule, DSCP_MARK)])
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dscp_rule = qos_policy['rules'][0]
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self._wait_for_dscp_marking_rule_applied(vm, DSCP_MARK)
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qos_policy_id = qos_policy['id']
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self.client.delete_dscp_marking_rule(dscp_rule['id'], qos_policy_id)
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self._wait_for_dscp_marking_rule_removed(vm)
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# Create new rule
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new_rule = self.safe_client.create_dscp_marking_rule(
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self.tenant_id, qos_policy_id, new_dscp_mark)
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self._wait_for_dscp_marking_rule_applied(vm, new_dscp_mark)
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# Update qos policy rule id
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self.client.update_dscp_marking_rule(
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new_rule['id'], qos_policy_id,
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body={'dscp_marking_rule': {'dscp_mark': DSCP_MARK}})
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self._wait_for_dscp_marking_rule_applied(vm, DSCP_MARK)
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# Remove qos policy from port
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self.client.update_port(
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vm.neutron_port['id'],
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body={'port': {'qos_policy_id': None}})
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self._wait_for_dscp_marking_rule_removed(vm)
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class TestQoSWithL2Population(base.BaseFullStackTestCase):
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def setUp(self):
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# We limit this test to using the openvswitch mech driver, because DSCP
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# is presently not implemented for Linux Bridge. The 'rule_types' API
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# call only returns rule types that are supported by all configured
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# mech drivers. So in a fullstack scenario, where both the OVS and the
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# Linux Bridge mech drivers are configured, the DSCP rule type will be
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# unavailable since it is not implemented in Linux Bridge.
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mech_driver = 'openvswitch'
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host_desc = [] # No need to register agents for this test case
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env_desc = environment.EnvironmentDescription(qos=True, l2_pop=True,
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mech_drivers=mech_driver)
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env = environment.Environment(env_desc, host_desc)
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super(TestQoSWithL2Population, self).setUp(env)
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def test_supported_qos_rule_types(self):
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res = self.client.list_qos_rule_types()
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rule_types = {t['type'] for t in res['rule_types']}
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expected_rules = (
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set(mech_ovs.OpenvswitchMechanismDriver.supported_qos_rule_types))
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self.assertEqual(expected_rules, rule_types)
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