neutron/neutron/db/netmtu_db.py

41 lines
1.6 KiB
Python

# Copyright (c) 2015 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 oslo_config import cfg
from neutron.api.v2 import attributes
from neutron.db import _resource_extend as resource_extend
from neutron.extensions import netmtu
from neutron.plugins.common import utils
CONF = cfg.CONF
# TODO(ihrachys): the class is not used in the tree; mixins are generally
# discouraged these days, so maybe it's worth considering deprecation for the
# class. Interested plugins would be able to ship it on their own, if they want
# to stick to mixins, or implement the behaviour in another way.
class Netmtu_db_mixin(object):
"""Mixin class to add network MTU support to db_base_plugin_v2."""
def _extend_network_dict_mtu(self, network_res, network_db):
# don't use network_db argument since MTU is not persisted in database
network_res[netmtu.MTU] = utils.get_deployment_physnet_mtu()
return network_res
resource_extend.register_funcs(
attributes.NETWORKS, ['_extend_network_dict_mtu'])