356 lines
14 KiB
Python
356 lines
14 KiB
Python
# Copyright (c) 2015 Red Hat, Inc.
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# Copyright (c) 2015 SUSE Linux Products GmbH
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# All Rights Reserved.
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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 time
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from neutron.callbacks import events
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from neutron.callbacks import registry
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from neutron.callbacks import resources
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from neutron.common import utils
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from neutron.plugins.ml2.drivers.openvswitch.agent.common import constants
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from neutron.tests.common import net_helpers
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from neutron.tests.functional.agent.l2 import base
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class TestOVSAgent(base.OVSAgentTestFramework):
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def test_port_creation_and_deletion(self):
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self.setup_agent_and_ports(
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port_dicts=self.create_test_ports())
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self.wait_until_ports_state(self.ports, up=True)
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for port in self.ports:
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self.agent.int_br.delete_port(port['vif_name'])
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self.wait_until_ports_state(self.ports, up=False)
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def test_no_stale_flows_after_port_delete(self):
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def find_drop_flow(ofport, flows):
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for flow in flows.split("\n"):
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if "in_port=%d" % ofport in flow and "actions=drop" in flow:
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return True
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return False
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def num_ports_with_drop_flows(ofports, flows):
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count = 0
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for ofport in ofports:
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if find_drop_flow(ofport, flows):
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count = count + 1
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return count
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# setup
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self.setup_agent_and_ports(
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port_dicts=self.create_test_ports())
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self.wait_until_ports_state(self.ports, up=True)
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# call port_delete first
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for port in self.ports:
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self.agent.port_delete([], port_id=port['id'])
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portnames = [port["vif_name"] for port in self.ports]
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ofports = [port.ofport for port in self.agent.int_br.get_vif_ports()
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if port.port_name in portnames]
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#wait until ports are marked dead, with drop flow
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utils.wait_until_true(
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lambda: num_ports_with_drop_flows(
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ofports,
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self.agent.int_br.dump_flows(
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constants.LOCAL_SWITCHING
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)) == len(ofports))
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#delete the ports on bridge
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for port in self.ports:
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self.agent.int_br.delete_port(port['vif_name'])
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self.wait_until_ports_state(self.ports, up=False)
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#verify no stale drop flows
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self.assertEqual(0,
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num_ports_with_drop_flows(
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ofports,
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self.agent.int_br.dump_flows(
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constants.LOCAL_SWITCHING
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)
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))
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def _check_datapath_type_netdev(self, expected, default=False):
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if not default:
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self.config.set_override('datapath_type',
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expected,
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"OVS")
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agent = self.create_agent()
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self.start_agent(agent)
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for br_name in (getattr(self, br) for br in
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('br_int', 'br_tun', 'br_phys')):
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actual = self.ovs.db_get_val('Bridge', br_name, 'datapath_type')
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self.assertEqual(expected, actual)
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def test_datapath_type_change(self):
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self._check_datapath_type_netdev('system')
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self._check_datapath_type_netdev('netdev')
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def test_datapath_type_netdev(self):
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self._check_datapath_type_netdev(
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constants.OVS_DATAPATH_NETDEV)
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def test_datapath_type_system(self):
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self._check_datapath_type_netdev(
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constants.OVS_DATAPATH_SYSTEM)
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def test_datapath_type_default(self):
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self._check_datapath_type_netdev(
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constants.OVS_DATAPATH_SYSTEM, default=True)
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def test_resync_devices_set_up_after_exception(self):
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self.setup_agent_and_ports(
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port_dicts=self.create_test_ports(),
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trigger_resync=True)
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self.wait_until_ports_state(self.ports, up=True)
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def test_reprocess_port_when_ovs_restarts(self):
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self.setup_agent_and_ports(
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port_dicts=self.create_test_ports())
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self.wait_until_ports_state(self.ports, up=True)
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self.agent.check_ovs_status.return_value = constants.OVS_RESTARTED
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# OVS restarted, the agent should reprocess all the ports
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self.agent.plugin_rpc.update_device_list.reset_mock()
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self.wait_until_ports_state(self.ports, up=True)
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def test_resync_dev_up_after_failure(self):
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self.setup_agent_and_ports(
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port_dicts=self.create_test_ports(),
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failed_dev_up=True)
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# in the RPC mock the first port fails and should
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# be re-synced
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expected_ports = self.ports + [self.ports[0]]
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self.wait_until_ports_state(expected_ports, up=True)
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def test_resync_dev_down_after_failure(self):
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self.setup_agent_and_ports(
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port_dicts=self.create_test_ports(),
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failed_dev_down=True)
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self.wait_until_ports_state(self.ports, up=True)
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for port in self.ports:
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self.agent.int_br.delete_port(port['vif_name'])
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# in the RPC mock the first port fails and should
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# be re-synced
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expected_ports = self.ports + [self.ports[0]]
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self.wait_until_ports_state(expected_ports, up=False)
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def test_ancillary_port_creation_and_deletion(self):
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external_bridge = self.useFixture(
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net_helpers.OVSBridgeFixture()).bridge
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self.setup_agent_and_ports(
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port_dicts=self.create_test_ports(),
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ancillary_bridge=external_bridge)
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self.wait_until_ports_state(self.ports, up=True)
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for port in self.ports:
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external_bridge.delete_port(port['vif_name'])
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self.wait_until_ports_state(self.ports, up=False)
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def test_resync_ancillary_devices(self):
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external_bridge = self.useFixture(
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net_helpers.OVSBridgeFixture()).bridge
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self.setup_agent_and_ports(
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port_dicts=self.create_test_ports(),
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ancillary_bridge=external_bridge,
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trigger_resync=True)
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self.wait_until_ports_state(self.ports, up=True)
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def test_resync_ancillary_dev_up_after_failure(self):
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external_bridge = self.useFixture(
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net_helpers.OVSBridgeFixture()).bridge
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self.setup_agent_and_ports(
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port_dicts=self.create_test_ports(),
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ancillary_bridge=external_bridge,
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failed_dev_up=True)
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# in the RPC mock the first port fails and should
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# be re-synced
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expected_ports = self.ports + [self.ports[0]]
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self.wait_until_ports_state(expected_ports, up=True)
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def test_resync_ancillary_dev_down_after_failure(self):
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external_bridge = self.useFixture(
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net_helpers.OVSBridgeFixture()).bridge
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self.setup_agent_and_ports(
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port_dicts=self.create_test_ports(),
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ancillary_bridge=external_bridge,
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failed_dev_down=True)
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self.wait_until_ports_state(self.ports, up=True)
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for port in self.ports:
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external_bridge.delete_port(port['vif_name'])
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# in the RPC mock the first port fails and should
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# be re-synced
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expected_ports = self.ports + [self.ports[0]]
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self.wait_until_ports_state(expected_ports, up=False)
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def test_port_vlan_tags(self):
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self.setup_agent_and_ports(
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port_dicts=self.create_test_ports(),
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trigger_resync=True)
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self.wait_until_ports_state(self.ports, up=True)
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self.assert_vlan_tags(self.ports, self.agent)
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def _test_assert_bridges_ports_vxlan(self, local_ip=None):
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agent = self.create_agent(local_ip=local_ip)
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self.assertTrue(self.ovs.bridge_exists(self.br_int))
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self.assertTrue(self.ovs.bridge_exists(self.br_tun))
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self.assert_bridge_ports()
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self.assert_patch_ports(agent)
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def test_assert_bridges_ports_vxlan_ipv4(self):
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self._test_assert_bridges_ports_vxlan()
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def test_assert_bridges_ports_vxlan_ipv6(self):
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self._test_assert_bridges_ports_vxlan(local_ip='2001:db8:100::1')
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def test_assert_bridges_ports_no_tunnel(self):
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self.create_agent(create_tunnels=False)
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self.assertTrue(self.ovs.bridge_exists(self.br_int))
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self.assertFalse(self.ovs.bridge_exists(self.br_tun))
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def test_assert_pings_during_br_int_setup_not_lost(self):
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self.setup_agent_and_ports(port_dicts=self.create_test_ports(),
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create_tunnels=False)
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self.wait_until_ports_state(self.ports, up=True)
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ips = [port['fixed_ips'][0]['ip_address'] for port in self.ports]
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with net_helpers.async_ping(self.namespace, ips) as done:
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while not done():
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self.agent.setup_integration_br()
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time.sleep(0.25)
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def test_assert_br_int_patch_port_ofports_dont_change(self):
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# When the integration bridge is setup, it should reuse the existing
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# patch ports between br-int and br-tun.
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self.setup_agent_and_ports(port_dicts=[], create_tunnels=True)
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patch_int_ofport_before = self.agent.patch_int_ofport
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patch_tun_ofport_before = self.agent.patch_tun_ofport
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self.setup_agent_and_ports(port_dicts=[], create_tunnels=True)
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self.assertEqual(patch_int_ofport_before, self.agent.patch_int_ofport)
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self.assertEqual(patch_tun_ofport_before, self.agent.patch_tun_ofport)
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def test_assert_br_phys_patch_port_ofports_dont_change(self):
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# When the integration bridge is setup, it should reuse the existing
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# patch ports between br-int and br-phys.
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self.setup_agent_and_ports(port_dicts=[])
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patch_int_ofport_before = self.agent.int_ofports['physnet']
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patch_phys_ofport_before = self.agent.phys_ofports['physnet']
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self.setup_agent_and_ports(port_dicts=[])
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self.assertEqual(patch_int_ofport_before,
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self.agent.int_ofports['physnet'])
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self.assertEqual(patch_phys_ofport_before,
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self.agent.phys_ofports['physnet'])
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def test_assert_pings_during_br_phys_setup_not_lost_in_vlan_to_flat(self):
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provider_net = self._create_test_network_dict()
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provider_net['network_type'] = 'flat'
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self._test_assert_pings_during_br_phys_setup_not_lost(provider_net)
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def test_assert_pings_during_br_phys_setup_not_lost_in_vlan_to_vlan(self):
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provider_net = self._create_test_network_dict()
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provider_net['network_type'] = 'vlan'
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provider_net['segmentation_id'] = 876
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self._test_assert_pings_during_br_phys_setup_not_lost(provider_net)
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def _test_assert_pings_during_br_phys_setup_not_lost(self, provider_net):
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# Separate namespace is needed when pinging from one port to another,
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# otherwise Linux ping uses loopback instead for sending and receiving
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# ping, hence ignoring flow setup.
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ns_phys = self.useFixture(net_helpers.NamespaceFixture()).name
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ports = self.create_test_ports(amount=2)
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port_int = ports[0]
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port_phys = ports[1]
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ip_int = port_int['fixed_ips'][0]['ip_address']
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ip_phys = port_phys['fixed_ips'][0]['ip_address']
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self.setup_agent_and_ports(port_dicts=[port_int], create_tunnels=False,
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network=provider_net)
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self.plug_ports_to_phys_br(provider_net, [port_phys],
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namespace=ns_phys)
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# The OVS agent doesn't monitor the physical bridges, no notification
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# is sent when a port is up on a physical bridge, hence waiting only
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# for the ports connected to br-int
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self.wait_until_ports_state([port_int], up=True)
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# sanity pings before we start
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net_helpers.assert_ping(ns_phys, ip_int)
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net_helpers.assert_ping(self.namespace, ip_phys)
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with net_helpers.async_ping(ns_phys, [ip_int]) as done:
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while not done():
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self.agent.setup_physical_bridges(self.agent.bridge_mappings)
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time.sleep(0.25)
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with net_helpers.async_ping(self.namespace, [ip_phys]) as done:
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while not done():
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self.agent.setup_physical_bridges(self.agent.bridge_mappings)
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time.sleep(0.25)
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def test_noresync_after_port_gone(self):
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'''This will test the scenario where a port is removed after listing
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it but before getting vif info about it.
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'''
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self.ports = self.create_test_ports(amount=2)
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self.agent = self.create_agent(create_tunnels=False)
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self.network = self._create_test_network_dict()
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self._plug_ports(self.network, self.ports, self.agent)
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self.start_agent(self.agent, ports=self.ports,
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unplug_ports=[self.ports[1]])
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self.wait_until_ports_state([self.ports[0]], up=True)
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self.assertRaises(
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utils.WaitTimeout, self.wait_until_ports_state, [self.ports[1]],
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up=True, timeout=10)
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def test_ovs_restarted_event(self):
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callback = mock.Mock()
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self.setup_agent_and_ports(
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port_dicts=self.create_test_ports())
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registry.subscribe(callback,
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resources.AGENT,
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events.OVS_RESTARTED)
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self.agent.check_ovs_status.return_value = constants.OVS_RESTARTED
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utils.wait_until_true(lambda: callback.call_count, timeout=10)
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callback.assert_called_with(resources.AGENT,
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events.OVS_RESTARTED,
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mock.ANY)
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class TestOVSAgentExtensionConfig(base.OVSAgentTestFramework):
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def setUp(self):
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super(TestOVSAgentExtensionConfig, self).setUp()
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self.config.set_override('extensions', ['qos'], 'agent')
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self.agent = self.create_agent(create_tunnels=False)
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def test_report_loaded_extension(self):
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self.agent._report_state()
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agent_state = self.agent.state_rpc.report_state.call_args[0][1]
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self.assertEqual(['qos'], agent_state['configurations']['extensions'])
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