66 lines
2.6 KiB
Python
66 lines
2.6 KiB
Python
# 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 as lib_exc
|
|
from neutron_lib.plugins import constants as plugin_constants
|
|
from oslo_log import log
|
|
|
|
from neutron.db import servicetype_db as st_db
|
|
from neutron.services.l3_router.service_providers import driver_controller
|
|
from neutron.services import provider_configuration
|
|
|
|
|
|
LOG = log.getLogger(__name__)
|
|
|
|
|
|
class DriverController(driver_controller.DriverController):
|
|
"""Driver controller for the OVN L3 service plugin.
|
|
|
|
This component is responsible for dispatching router requests to L3
|
|
service providers and for performing the bookkeeping about which
|
|
driver is associated with a given router.
|
|
|
|
This is not intended to be accessed by the drivers or the l3 plugin.
|
|
All of the methods are marked as private to reflect this.
|
|
"""
|
|
|
|
def __init__(self, l3_plugin):
|
|
self.l3_plugin = l3_plugin
|
|
self._stm = st_db.ServiceTypeManager.get_instance()
|
|
self._stm.add_provider_configuration(
|
|
plugin_constants.L3, _OvnPlusProviderConfiguration())
|
|
self._load_drivers()
|
|
|
|
def _get_provider_for_create(self, context, router):
|
|
"""Get provider based on flavor or default provider."""
|
|
if not driver_controller.flavor_specified(router):
|
|
return self.drivers[self.default_provider]
|
|
return self._get_l3_driver_by_flavor(context, router['flavor_id'])
|
|
|
|
|
|
class _OvnPlusProviderConfiguration(
|
|
provider_configuration.ProviderConfiguration):
|
|
|
|
def __init__(self):
|
|
# loads up the OVN provider automatically and sets it as default.
|
|
super(_OvnPlusProviderConfiguration, self).__init__(
|
|
svc_type=plugin_constants.L3)
|
|
path = 'neutron.services.ovn_l3.service_providers.ovn.OvnDriver'
|
|
try:
|
|
self.add_provider({'service_type': plugin_constants.L3,
|
|
'name': 'ovn', 'driver': path, 'default': True})
|
|
except lib_exc.Invalid:
|
|
LOG.debug("Could not add L3 provider ovn, it may have "
|
|
"already been explicitly defined.")
|