be45b704ac
bug 985470 bug 985646 The fixes enable the OVS and linuxbridge agenets to "keep alive" when the host running the server/plugin is down. Fixes after comments. Better logging Fixes after comments - added reconnect interval + cleanup Fixes after comments - simplify code + ovs intervals moved to configuration file Fixes after comments - move int conversion to configuration Fixes after comments - if one of the polling interval or reconnect interval are not defined in the relevant ini files then a default value is used. Fixes after comments and merges with HACKING.rst fixes Fixes after port binding comments Fixes after comments from gongysh Fixes after comments - align comments in agent ini files Fixes - revert some code Change-Id: I9194f142478b130e8ef198b019539357a9916d7f
458 lines
20 KiB
Python
458 lines
20 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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#
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# Copyright 2012 Cisco Systems, Inc. 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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#
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# @author: Shweta Padubidri, Cisco Systems, Inc.
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import ConfigParser
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import logging
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import os
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import shlex
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import signal
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import subprocess
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import sys
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import unittest
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import quantum.db.api as db
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from quantum.plugins.linuxbridge import LinuxBridgePlugin
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from quantum.plugins.linuxbridge.agent import (
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linuxbridge_quantum_agent as linux_agent,
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)
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from quantum.plugins.linuxbridge.common import constants as lconst
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from quantum.plugins.linuxbridge.db import l2network_db as cdb
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LOG = logging.getLogger(__name__)
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class LinuxBridgeAgentTest(unittest.TestCase):
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def test_add_gateway_interface(
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self, tenant_id="test_tenant", network_name="test_network",
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interface_id='fe701ddf-26a2-42ea-b9e6-7313d1c522cc',
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mac_address='fe:16:3e:51:60:dd'):
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LOG.debug("test_tap_gateway_interface - START")
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new_network = (
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self._linuxbridge_plugin.create_network(tenant_id, network_name))
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new_port = self._linuxbridge_plugin.create_port(
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tenant_id, new_network[lconst.NET_ID], lconst.PORT_UP)
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self._linuxbridge_plugin.plug_interface(
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tenant_id, new_network[lconst.NET_ID],
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new_port[lconst.PORT_ID], interface_id)
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bridge_name = self.br_name_prefix + new_network[lconst.NET_ID][0:11]
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self.create_bridge(bridge_name)
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device_name = self.gw_name_prefix + new_network[lconst.NET_ID][0:11]
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self.create_device(device_name, mac_address)
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vlan_bind = cdb.get_vlan_binding(new_network[lconst.NET_ID])
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vlan_id = vlan_bind[lconst.VLANID]
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self._linuxbridge_quantum_agent.process_port_binding(
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new_port[lconst.PORT_ID], new_network[lconst.NET_ID],
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device_name, str(vlan_id))
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list_interface = (self._linuxbridge_quantum_agent.linux_br.
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get_interfaces_on_bridge(bridge_name))
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self.assertTrue(device_name in list_interface)
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for interface in list_interface:
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self._linuxbridge_quantum_agent.linux_br.remove_interface(
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bridge_name, interface)
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self.delete_device(interface)
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self.delete_bridge(bridge_name)
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self.tearDownUnplugInterface(tenant_id, new_network[lconst.NET_ID],
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new_port[lconst.PORT_ID])
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LOG.debug("test_add_gateway_interface - END")
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def test_add_tap_interface(
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self, tenant_id="test_tenant", network_name="test_network",
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interface_id='fe701ddf-26a2-42ea-b9e6-7313d1c522cc',
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mac_address='fe:16:3e:51:60:dd'):
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LOG.debug("test_add_tap_interface - START")
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new_network = (
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self._linuxbridge_plugin.create_network(tenant_id, network_name))
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new_port = self._linuxbridge_plugin.create_port(
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tenant_id, new_network[lconst.NET_ID], lconst.PORT_UP)
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self._linuxbridge_plugin.plug_interface(
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tenant_id, new_network[lconst.NET_ID],
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new_port[lconst.PORT_ID], interface_id)
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bridge_name = self.br_name_prefix + new_network[lconst.NET_ID][0:11]
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self.create_bridge(bridge_name)
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device_name = self.tap_name_prefix + interface_id[0:11]
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self.create_device(device_name, mac_address)
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vlan_bind = cdb.get_vlan_binding(new_network[lconst.NET_ID])
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vlan_id = vlan_bind[lconst.VLANID]
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self._linuxbridge_quantum_agent.process_port_binding(
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new_port[lconst.PORT_ID], new_network[lconst.NET_ID],
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interface_id, str(vlan_id))
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list_interface = (self._linuxbridge_quantum_agent.linux_br.
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get_interfaces_on_bridge(bridge_name))
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self.assertTrue(device_name in list_interface)
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for interface in list_interface:
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self._linuxbridge_quantum_agent.linux_br.remove_interface(
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bridge_name, interface)
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self.delete_device(interface)
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self.delete_bridge(bridge_name)
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self.tearDownUnplugInterface(tenant_id, new_network[lconst.NET_ID],
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new_port[lconst.PORT_ID])
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LOG.debug("test_add_tap_interface -END")
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def test_remove_interface(
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self, tenant_id="test_tenant", network_name="test_network",
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interface_id='fe701ddf-26a2-42ea-b9e6-7313d1c522cc',
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mac_address='fe:16:3e:51:60:dd'):
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LOG.debug("test_remove_interface - START")
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new_network = (
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self._linuxbridge_plugin.create_network(tenant_id, network_name))
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new_port = self._linuxbridge_plugin.create_port(
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tenant_id, new_network[lconst.NET_ID], lconst.PORT_UP)
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self._linuxbridge_plugin.plug_interface(
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tenant_id, new_network[lconst.NET_ID],
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new_port[lconst.PORT_ID], interface_id)
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bridge_name = self.br_name_prefix + new_network[lconst.NET_ID][0:11]
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self.create_bridge(bridge_name)
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device_name = self.tap_name_prefix + interface_id[0:11]
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self.create_device(device_name, mac_address)
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vlan_bind = cdb.get_vlan_binding(new_network[lconst.NET_ID])
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vlan_id = vlan_bind[lconst.VLANID]
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self._linuxbridge_quantum_agent.process_port_binding(
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new_port[lconst.PORT_ID], new_network[lconst.NET_ID],
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interface_id, str(vlan_id))
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list_interface = (self._linuxbridge_quantum_agent.linux_br.
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get_interfaces_on_bridge(bridge_name))
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self._linuxbridge_quantum_agent.linux_br.remove_interface(bridge_name,
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device_name)
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list_interface = (self._linuxbridge_quantum_agent.linux_br.
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get_interfaces_on_bridge(bridge_name))
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self.assertFalse(device_name in list_interface)
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for interface in list_interface:
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self._linuxbridge_quantum_agent.linux_br.remove_interface(
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bridge_name, interface)
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self.delete_device(interface)
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self.delete_device(device_name)
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self.delete_bridge(bridge_name)
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self.tearDownUnplugInterface(tenant_id, new_network[lconst.NET_ID],
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new_port[lconst.PORT_ID])
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LOG.debug("test_remove_interface -END")
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def test_ensure_vlan_bridge(
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self, tenant_id="test_tenant",
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network_name="test_network",
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interface_id='fe701ddf-26a2-42ea-b9e6-7313d1c522cc'):
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LOG.debug("test_ensure_vlan_bridge - START")
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new_network = (
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self._linuxbridge_plugin.create_network(tenant_id, network_name))
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new_port = self._linuxbridge_plugin.create_port(
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tenant_id, new_network[lconst.NET_ID], lconst.PORT_UP)
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self._linuxbridge_plugin.plug_interface(
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tenant_id, new_network[lconst.NET_ID],
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new_port[lconst.PORT_ID], interface_id)
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bridge_name = self.br_name_prefix + new_network[lconst.NET_ID][0:11]
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vlan_bind = cdb.get_vlan_binding(new_network[lconst.NET_ID])
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vlan_id = vlan_bind[lconst.VLANID]
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vlan_subinterface = self.physical_interface + '.' + str(vlan_id)
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self._linuxbridge_quantum_agent.linux_br.ensure_vlan_bridge(
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new_network[lconst.NET_ID], str(vlan_id))
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list_quantum_bridges = (self._linuxbridge_quantum_agent.linux_br.
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get_all_quantum_bridges())
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self.assertTrue(bridge_name in list_quantum_bridges)
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list_interface = (self._linuxbridge_quantum_agent.linux_br.
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get_interfaces_on_bridge(bridge_name))
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self.assertTrue(vlan_subinterface in list_interface)
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for interface in list_interface:
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self._linuxbridge_quantum_agent.linux_br.remove_interface(
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bridge_name, interface)
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self.delete_device(interface)
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self.delete_bridge(bridge_name)
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self.tearDownUnplugInterface(tenant_id, new_network[lconst.NET_ID],
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new_port[lconst.PORT_ID])
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LOG.debug("test_ensure_vlan_bridge -END")
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def test_delete_vlan_bridge(
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self, tenant_id="test_tenant", network_name="test_network",
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interface_id='fe701ddf-26a2-42ea-b9e6-7313d1c522cc'):
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LOG.debug("test_delete_vlan_bridge - START")
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new_network = (
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self._linuxbridge_plugin.create_network(tenant_id, network_name))
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new_port = self._linuxbridge_plugin.create_port(
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tenant_id, new_network[lconst.NET_ID], lconst.PORT_UP)
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self._linuxbridge_plugin.plug_interface(
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tenant_id, new_network[lconst.NET_ID],
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new_port[lconst.PORT_ID], interface_id)
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bridge_name = self.br_name_prefix + new_network[lconst.NET_ID][0:11]
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vlan_bind = cdb.get_vlan_binding(new_network[lconst.NET_ID])
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vlan_id = vlan_bind[lconst.VLANID]
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vlan_subinterface = self.physical_interface + '.' + str(vlan_id)
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self._linuxbridge_quantum_agent.linux_br.ensure_vlan_bridge(
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new_network[lconst.NET_ID], str(vlan_id))
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self._linuxbridge_quantum_agent.linux_br.delete_vlan_bridge(
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bridge_name)
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self.assertEquals(self.device_exists(vlan_subinterface), False)
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self.assertEquals(self.device_exists(bridge_name), False)
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self.tearDownUnplugInterface(tenant_id, new_network[lconst.NET_ID],
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new_port[lconst.PORT_ID])
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LOG.debug("test_delete_vlan_bridge - END")
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def test_process_deleted_networks(
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self, tenant_id="test_tenant", network_name="test_network",
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interface_id='fe701ddf-26a2-42ea-b9e6-7313d1c522cc'):
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LOG.debug("test_delete_vlan_bridge - START")
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new_network = (
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self._linuxbridge_plugin.create_network(tenant_id, network_name))
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new_port = self._linuxbridge_plugin.create_port(
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tenant_id, new_network[lconst.NET_ID], lconst.PORT_UP)
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self._linuxbridge_plugin.plug_interface(
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tenant_id, new_network[lconst.NET_ID],
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new_port[lconst.PORT_ID], interface_id)
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bridge_name = self.br_name_prefix + new_network[lconst.NET_ID][0:11]
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vlan_bindings = {}
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vlan_bindings[new_network[lconst.NET_ID]] = (
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cdb.get_vlan_binding(new_network[lconst.NET_ID]))
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vlan_id = vlan_bindings[new_network[lconst.NET_ID]][lconst.VLANID]
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vlan_subinterface = self.physical_interface + '.' + str(vlan_id)
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self._linuxbridge_quantum_agent.linux_br.ensure_vlan_bridge(
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new_network[lconst.NET_ID], str(vlan_id))
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self.tearDownUnplugInterface(tenant_id, new_network[lconst.NET_ID],
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new_port[lconst.PORT_ID])
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vlan_bindings = {}
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self._linuxbridge_quantum_agent.process_deleted_networks(vlan_bindings)
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self.assertEquals(self.device_exists(vlan_subinterface), False)
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self.assertEquals(self.device_exists(bridge_name), False)
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LOG.debug("test_delete_vlan_bridge - END")
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def test_process_unplugged_tap_interface(
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self, tenant_id="test_tenant", network_name="test_network",
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interface_id='fe701ddf-26a2-42ea-b9e6-7313d1c522cc',
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mac_address='fe:16:3e:51:60:dd'):
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LOG.debug("test_process_unplugged_tap_interface - START")
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new_network = (
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self._linuxbridge_plugin.create_network(tenant_id, network_name))
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new_port = self._linuxbridge_plugin.create_port(
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tenant_id, new_network[lconst.NET_ID], lconst.PORT_UP)
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self._linuxbridge_plugin.plug_interface(
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tenant_id, new_network[lconst.NET_ID],
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new_port[lconst.PORT_ID], interface_id)
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bridge_name = self.br_name_prefix + new_network[lconst.NET_ID][0:11]
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self.create_bridge(bridge_name)
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device_name = self.tap_name_prefix + interface_id[0:11]
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self.create_device(device_name, mac_address)
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vlan_bind = cdb.get_vlan_binding(new_network[lconst.NET_ID])
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vlan_id = vlan_bind[lconst.VLANID]
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self._linuxbridge_quantum_agent.process_port_binding(
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new_port[lconst.PORT_ID], new_network[lconst.NET_ID],
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interface_id, str(vlan_id))
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list_interface = self._linuxbridge_quantum_agent.linux_br.\
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get_interfaces_on_bridge(bridge_name)
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self._linuxbridge_plugin.unplug_interface(tenant_id,
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new_network[lconst.NET_ID],
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new_port[lconst.PORT_ID])
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plugged_interface = []
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self._linuxbridge_quantum_agent.process_unplugged_interfaces(
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plugged_interface)
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list_interface = (self._linuxbridge_quantum_agent.linux_br.
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get_interfaces_on_bridge(bridge_name))
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self.assertFalse(device_name in list_interface)
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for interface in list_interface:
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self._linuxbridge_quantum_agent.linux_br.remove_interface(
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bridge_name, interface)
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self.delete_device(interface)
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self.delete_device(device_name)
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self.delete_bridge(bridge_name)
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self.tearDownNetworkPort(tenant_id, new_network[lconst.NET_ID],
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new_port[lconst.PORT_ID])
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LOG.debug("test_test_process_unplugged_tap_interface -END")
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def test_process_unplugged_gw_interface(
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self, tenant_id="test_tenant", network_name="test_network",
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interface_id='fe701ddf-26a2-42ea-b9e6-7313d1c522cc',
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mac_address='fe:16:3e:51:60:dd'):
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LOG.debug("test_process_unplugged_gw_interface - START")
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new_network = (
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self._linuxbridge_plugin.create_network(tenant_id, network_name))
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new_port = self._linuxbridge_plugin.create_port(
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tenant_id, new_network[lconst.NET_ID], lconst.PORT_UP)
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self._linuxbridge_plugin.plug_interface(
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tenant_id, new_network[lconst.NET_ID],
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new_port[lconst.PORT_ID], interface_id)
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bridge_name = self.br_name_prefix + new_network[lconst.NET_ID][0:11]
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self.create_bridge(bridge_name)
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device_name = self.gw_name_prefix + new_network[lconst.NET_ID][0:11]
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self.create_device(device_name, mac_address)
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vlan_bind = cdb.get_vlan_binding(new_network[lconst.NET_ID])
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vlan_id = vlan_bind[lconst.VLANID]
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self._linuxbridge_quantum_agent.process_port_binding(
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new_port[lconst.PORT_ID], new_network[lconst.NET_ID],
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interface_id, str(vlan_id))
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list_interface = (self._linuxbridge_quantum_agent.linux_br.
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get_interfaces_on_bridge(bridge_name))
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self._linuxbridge_plugin.unplug_interface(tenant_id,
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new_network[lconst.NET_ID],
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new_port[lconst.PORT_ID])
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plugged_interface = []
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self._linuxbridge_quantum_agent.process_unplugged_interfaces(
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plugged_interface)
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list_interface = (self._linuxbridge_quantum_agent.linux_br.
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get_interfaces_on_bridge(bridge_name))
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self.assertFalse(device_name in list_interface)
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for interface in list_interface:
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self._linuxbridge_quantum_agent.linux_br.remove_interface(
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bridge_name, interface)
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self.delete_device(interface)
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self.delete_device(device_name)
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self.delete_bridge(bridge_name)
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self.tearDownNetworkPort(tenant_id, new_network[lconst.NET_ID],
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new_port[lconst.PORT_ID])
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LOG.debug("test_test_process_unplugged_gw_interface -END")
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def create_bridge(self, bridge_name):
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"""
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Create a bridge
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"""
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self.run_cmd(['brctl', 'addbr', bridge_name])
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self.run_cmd(['brctl', 'setfd', bridge_name, str(0)])
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self.run_cmd(['brctl', 'stp', bridge_name, 'off'])
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self.run_cmd(['ip', 'link', 'set', bridge_name, 'up'])
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def delete_bridge(self, bridge_name):
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"""
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Delete a bridge
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"""
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self.run_cmd(['ip', 'link', 'set', bridge_name, 'down'])
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self.run_cmd(['brctl', 'delbr', bridge_name])
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def create_device(self, dev, mac_address):
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self.run_cmd(['ip', 'tuntap', 'add', dev, 'mode', 'tap'])
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self.run_cmd(['ip', 'link', 'set', dev, "address", mac_address])
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self.run_cmd(['ip', 'link', 'set', dev, 'up'])
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def delete_device(self, dev):
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self.run_cmd(['ip', 'link', 'delete', dev])
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def setUp(self):
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"""
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Set up function
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"""
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self.tenant_id = "test_tenant"
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self.network_name = "test_network"
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self.config_file = os.path.join(os.path.dirname(__file__), os.pardir,
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os.pardir, os.pardir, os.pardir,
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os.pardir, "etc", "quantum",
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"plugins", "linuxbridge",
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"linuxbridge_conf.ini")
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config = ConfigParser.ConfigParser()
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self.br_name_prefix = "brq"
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self.gw_name_prefix = "gw-"
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self.tap_name_prefix = "tap"
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self._linuxbridge_plugin = LinuxBridgePlugin.LinuxBridgePlugin()
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try:
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fh = open(self.config_file)
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fh.close()
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config.read(self.config_file)
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self.physical_interface = config.get("LINUX_BRIDGE",
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"physical_interface")
|
|
self.polling_interval = config.get("AGENT", "polling_interval")
|
|
self.root_helper = config.get("AGENT", "root_helper")
|
|
except Exception, e:
|
|
LOG.error("Unable to parse config file \"%s\": \nException%s"
|
|
% (self.config_file, str(e)))
|
|
sys.exit(1)
|
|
self._linuxbridge = linux_agent.LinuxBridge(self.br_name_prefix,
|
|
self.physical_interface,
|
|
self.root_helper)
|
|
self._linuxbridge_quantum_agent = linux_agent.LinuxBridgeQuantumAgent(
|
|
self.br_name_prefix,
|
|
self.physical_interface,
|
|
self.polling_interval,
|
|
self.root_helper)
|
|
|
|
def run_cmd(self, args):
|
|
cmd = shlex.split(self.root_helper) + args
|
|
LOG.debug("Running command: " + " ".join(cmd))
|
|
p = subprocess.Popen(cmd, stdout=subprocess.PIPE)
|
|
retval = p.communicate()[0]
|
|
if p.returncode == -(signal.SIGALRM):
|
|
LOG.debug("Timeout running command: " + " ".join(args))
|
|
if retval:
|
|
LOG.debug("Command returned: %s" % retval)
|
|
return retval
|
|
|
|
def device_exists(self, device):
|
|
"""Check if ethernet device exists."""
|
|
retval = self.run_cmd(['ip', 'link', 'show', 'dev', device])
|
|
if retval:
|
|
return True
|
|
else:
|
|
return False
|
|
|
|
"""
|
|
Clean up functions after the tests
|
|
"""
|
|
def tearDown(self):
|
|
"""Clear the test environment(Clean the Database)"""
|
|
db.clear_db()
|
|
|
|
def tearDownNetwork(self, tenant_id, network_dict_id):
|
|
"""
|
|
Tear down the Network
|
|
"""
|
|
self._linuxbridge_plugin.delete_network(tenant_id, network_dict_id)
|
|
|
|
def tearDownUnplugInterface(self, tenant_id, network_dict_id, port_id):
|
|
"""
|
|
Tear down the port
|
|
"""
|
|
self._linuxbridge_plugin.unplug_interface(tenant_id, network_dict_id,
|
|
port_id)
|
|
self.tearDownNetworkPort(tenant_id, network_dict_id, port_id)
|
|
|
|
def tearDownNetworkPort(self, tenant_id, network_dict_id, port_id):
|
|
"""
|
|
Tear down Network Port
|
|
"""
|
|
self._linuxbridge_plugin.delete_port(tenant_id, network_dict_id,
|
|
port_id)
|
|
self.tearDownNetwork(tenant_id, network_dict_id)
|