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service.py
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service.py
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# Copyright 2014 Hewlett-Packard Development Company, L.P.
#
# Author: Kiall Mac Innes <kiall@hpe.com>
#
# 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_log import log as logging
import designate.conf
from designate.conf.mdns import DEFAULT_MDNS_PORT
from designate import dnsmiddleware
from designate import dnsutils
from designate.mdns import handler
from designate import service
from designate import storage
from designate import utils
CONF = designate.conf.CONF
LOG = logging.getLogger(__name__)
class Service(service.Service):
_dns_default_port = DEFAULT_MDNS_PORT
def __init__(self):
self._storage = None
super().__init__(
self.service_name, threads=CONF['service:mdns'].threads,
)
self.dns_service = service.DNSService(
self.dns_application, self.tg,
CONF['service:mdns'].listen,
CONF['service:mdns'].tcp_backlog,
CONF['service:mdns'].tcp_recv_timeout,
)
def start(self):
super().start()
self.dns_service.start()
def stop(self, graceful=True):
self.dns_service.stop()
super().stop(graceful)
@property
def storage(self):
if not self._storage:
self._storage = storage.get_storage()
return self._storage
@property
def service_name(self):
return 'mdns'
@property
@utils.cache_result
def dns_application(self):
# Create an instance of the RequestHandler class and wrap with
# necessary middleware.
application = handler.RequestHandler(self.storage, self.tg)
application = dnsmiddleware.TsigInfoMiddleware(
application, self.storage
)
application = dnsmiddleware.SerializationMiddleware(
application, dnsutils.TsigKeyring(self.storage)
)
return application