88 lines
3.6 KiB
Python
88 lines
3.6 KiB
Python
# Copyright (c) 2014 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.
|
|
|
|
import sqlalchemy as sa
|
|
from sqlalchemy import orm
|
|
|
|
from neutron.db import db_base_plugin_v2
|
|
from neutron.db import l3_db
|
|
from neutron.db import model_base
|
|
from neutron.extensions import l3
|
|
|
|
|
|
class RouterExtraAttributes(model_base.BASEV2):
|
|
"""Additional attributes for a Virtual Router."""
|
|
|
|
# NOTE(armando-migliaccio): this model can be a good place to
|
|
# add extension attributes to a Router model. Each case needs
|
|
# to be individually examined, however 'distributed' and other
|
|
# simple ones fit the pattern well.
|
|
__tablename__ = "router_extra_attributes"
|
|
router_id = sa.Column(sa.String(36),
|
|
sa.ForeignKey('routers.id', ondelete="CASCADE"),
|
|
primary_key=True)
|
|
# Whether the router is a legacy (centralized) or a distributed one
|
|
distributed = sa.Column(sa.Boolean, default=False,
|
|
server_default=sa.sql.false(),
|
|
nullable=False)
|
|
# Whether the router is to be considered a 'service' router
|
|
service_router = sa.Column(sa.Boolean, default=False,
|
|
server_default=sa.sql.false(),
|
|
nullable=False)
|
|
ha = sa.Column(sa.Boolean, default=False,
|
|
server_default=sa.sql.false(),
|
|
nullable=False)
|
|
ha_vr_id = sa.Column(sa.Integer())
|
|
|
|
router = orm.relationship(
|
|
l3_db.Router,
|
|
backref=orm.backref("extra_attributes", lazy='joined',
|
|
uselist=False, cascade='delete'))
|
|
|
|
|
|
class ExtraAttributesMixin(object):
|
|
"""Mixin class to enable router's extra attributes."""
|
|
|
|
extra_attributes = []
|
|
|
|
def _extend_extra_router_dict(self, router_res, router_db):
|
|
extra_attrs = router_db['extra_attributes'] or {}
|
|
for attr in self.extra_attributes:
|
|
name = attr['name']
|
|
default = attr['default']
|
|
router_res[name] = (
|
|
extra_attrs[name] if name in extra_attrs else default)
|
|
|
|
def _get_extra_attributes(self, router, extra_attributes):
|
|
return (dict((attr['name'],
|
|
router.get(attr['name'], attr['default']))
|
|
for attr in extra_attributes))
|
|
|
|
def _process_extra_attr_router_create(
|
|
self, context, router_db, router_req):
|
|
kwargs = self._get_extra_attributes(router_req, self.extra_attributes)
|
|
# extra_attributes reference is populated via backref
|
|
if not router_db['extra_attributes']:
|
|
attributes_db = RouterExtraAttributes(
|
|
router_id=router_db['id'], **kwargs)
|
|
context.session.add(attributes_db)
|
|
router_db['extra_attributes'] = attributes_db
|
|
else:
|
|
# The record will exist if RouterExtraAttributes model's
|
|
# attributes are added with db migrations over time
|
|
router_db['extra_attributes'].update(kwargs)
|
|
|
|
db_base_plugin_v2.NeutronDbPluginV2.register_dict_extend_funcs(
|
|
l3.ROUTERS, ['_extend_extra_router_dict'])
|