vmware-nsx/neutron/tests/unit/ml2/drivers/mechanism_test.py
Bob Kukura 0f0499b89e Implement ML2 port binding
The ml2 plugin uses mechanism drivers to determine which network
segment and what VIF driver to use for a port. Mechanism drivers
supporting the openvswitch, linuxbridge, and hyperv agents are
added. The binding:host attribute is set on ports belonging to the
dhcp and l3 agents so that they can be bound.

To use with devstack until it is updated, set
"Q_ML2_PLUGIN_MECHANISM_DRIVERS=openvswitch,linuxbridge" in localrc.

The hyperv L2 agent does not currently implement the agents_db RPC,
and will therefore not work with its ml2 mechanism driver. This issue
will be tracked as a bug to be fixed in a separate merge.

implements blueprint: ml2-portbinding

Change-Id: Icb9c70d8b0d7fcb34b57adc760bb713b740e5dad
2013-09-03 18:05:20 -04:00

129 lines
4.7 KiB
Python

# Copyright (c) 2013 OpenStack Foundation
# All Rights Reserved.
#
# 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.
from neutron.extensions import portbindings
from neutron.plugins.ml2 import driver_api as api
class TestMechanismDriver(api.MechanismDriver):
"""Test mechanism driver for testing mechanism driver api."""
def initialize(self):
pass
def _check_network_context(self, context, original_expected):
assert(isinstance(context, api.NetworkContext))
assert(isinstance(context.current, dict))
assert(context.current['id'] is not None)
if original_expected:
assert(isinstance(context.original, dict))
assert(context.current['id'] == context.original['id'])
else:
assert(not context.original)
assert(context.network_segments)
def create_network_precommit(self, context):
self._check_network_context(context, False)
def create_network_postcommit(self, context):
self._check_network_context(context, False)
def update_network_precommit(self, context):
self._check_network_context(context, True)
def update_network_postcommit(self, context):
self._check_network_context(context, True)
def delete_network_precommit(self, context):
self._check_network_context(context, False)
def delete_network_postcommit(self, context):
self._check_network_context(context, False)
def _check_subnet_context(self, context, original_expected):
assert(isinstance(context, api.SubnetContext))
assert(isinstance(context.current, dict))
assert(context.current['id'] is not None)
if original_expected:
assert(isinstance(context.original, dict))
assert(context.current['id'] == context.original['id'])
else:
assert(not context.original)
def create_subnet_precommit(self, context):
self._check_subnet_context(context, False)
def create_subnet_postcommit(self, context):
self._check_subnet_context(context, False)
def update_subnet_precommit(self, context):
self._check_subnet_context(context, True)
def update_subnet_postcommit(self, context):
self._check_subnet_context(context, True)
def delete_subnet_precommit(self, context):
self._check_subnet_context(context, False)
def delete_subnet_postcommit(self, context):
self._check_subnet_context(context, False)
def _check_port_context(self, context, original_expected):
assert(isinstance(context, api.PortContext))
assert(isinstance(context.current, dict))
assert(context.current['id'] is not None)
if original_expected:
assert(isinstance(context.original, dict))
assert(context.current['id'] == context.original['id'])
else:
assert(not context.original)
network_context = context.network
assert(isinstance(network_context, api.NetworkContext))
self._check_network_context(network_context, False)
def create_port_precommit(self, context):
self._check_port_context(context, False)
def create_port_postcommit(self, context):
self._check_port_context(context, False)
def update_port_precommit(self, context):
self._check_port_context(context, True)
def update_port_postcommit(self, context):
self._check_port_context(context, True)
def delete_port_precommit(self, context):
self._check_port_context(context, False)
def delete_port_postcommit(self, context):
self._check_port_context(context, False)
def bind_port(self, context):
self._check_port_context(context, False)
host = context.current.get(portbindings.HOST_ID, None)
segment = context.network.network_segments[0][api.ID]
if host == "host-ovs-no_filter":
context.set_binding(segment, portbindings.VIF_TYPE_OVS, False)
elif host == "host-bridge-filter":
context.set_binding(segment, portbindings.VIF_TYPE_BRIDGE, True)
def validate_port_binding(self, context):
self._check_port_context(context, False)
return True
def unbind_port(self, context):
self._check_port_context(context, False)