Erik Olof Gunnar Andersson
8050680948
This patch moved the remaining RPC calls away from the MDNS service to the Worker and re-worked them to better match the patterns used in the Worker. This means that the MDNS service now only handles incoming DNS queries. In addition the metrics backend has been removed as it was only used by the MDNS RPC implementation and the monascastatsd implementation no longer serves a purpose. Closes-Bug: #1978742 Closes-Bug: #1978743 Change-Id: I5ef106717546a201fd62a51adacd43495c148cd4
87 lines
2.6 KiB
Python
87 lines
2.6 KiB
Python
# Copyright 2012 Managed I.T.
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#
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# Author: Kiall Mac Innes <kiall@managedit.ie>
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import abc
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from oslo_config import cfg
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from oslo_log import log as logging
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from designate.context import DesignateContext
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from designate.plugin import DriverPlugin
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LOG = logging.getLogger(__name__)
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CONF = cfg.CONF
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class Backend(DriverPlugin):
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"""Base class for backend implementations"""
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__plugin_type__ = 'backend'
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__plugin_ns__ = 'designate.backend'
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__backend_status__ = 'untested'
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def __init__(self, target):
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super(Backend, self).__init__()
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self.target = target
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self.options = target.options
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self.masters = target.masters
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self.host = self.options.get('host', '127.0.0.1')
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self.port = int(self.options.get('port', 53))
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# TODO(kiall): Context's should never be shared across requests.
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self.admin_context = DesignateContext.get_admin_context()
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self.admin_context.all_tenants = True
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# Options for sending NOTIFYs
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self.timeout = CONF['service:worker'].poll_timeout
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self.retry_interval = CONF['service:worker'].poll_retry_interval
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self.max_retries = CONF['service:worker'].poll_max_retries
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self.delay = CONF['service:worker'].poll_delay
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def start(self):
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LOG.info('Starting %s backend', self.get_canonical_name())
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def stop(self):
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LOG.info('Stopped %s backend', self.get_canonical_name())
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# Core Backend Interface
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@abc.abstractmethod
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def create_zone(self, context, zone):
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"""
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Create a DNS zone.
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:param context: Security context information.
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:param zone: the DNS zone.
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"""
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def update_zone(self, context, zone):
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"""
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Update a DNS zone.
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:param context: Security context information.
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:param zone: the DNS zone.
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"""
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LOG.debug('Update Zone')
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@abc.abstractmethod
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def delete_zone(self, context, zone):
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"""
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Delete a DNS zone.
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:param context: Security context information.
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:param zone: the DNS zone.
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"""
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