# designate.mdns.service

# Source code for designate.mdns.service

    # 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_keepidle,
                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

this page last updated: 2026-04-13 15:37:16

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