RETIRED, Tricircle is to provide networking automation across Neutron.
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# Copyright 2017 Huawei Technologies Co., Ltd.
# 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_lib import exceptions
from neutron_lib.plugins.ml2 import api
from oslo_config import cfg
from oslo_log import log
from neutron.plugins.ml2.drivers import type_flat
from tricircle.common import constants
LOG = log.getLogger(__name__)
class FlatTypeDriver(type_flat.FlatTypeDriver):
def __init__(self):
super(type_flat.FlatTypeDriver, self).__init__()
self._parse_networks(cfg.CONF.tricircle.flat_networks)
def get_type(self):
return constants.NT_FLAT
def initialize(self):
LOG.info("FlatTypeDriver initialization complete")
def reserve_provider_segment(self, context, segment, filters=None):
try:
res = super(FlatTypeDriver,
self).reserve_provider_segment(context,
segment,
filters=None)
except exceptions.FlatNetworkInUse:
# to support multiple regions sharing the same physical network
# for external network, we ignore this exception and let local
# Neutron judge whether the physical network is valid
res = segment
res[api.MTU] = None
res[api.NETWORK_TYPE] = self.get_type()
return res
def get_mtu(self, physical_network=None):
pass