Erik Olof Gunnar Andersson
097ffec548
This patch removes get_cfg_opts from the plugin class, and moves all configuration directly into designate.conf. There are no changes in the generated configuration due to this patch. Finally, this complets the blueprint to centralize all configuration, and is a follow up to this patch I3be68bf294157631a9bac128df0841220020de96 blueprint centralize-config-designate Change-Id: I007fc004fc533950c5eda3974f41f05c6db5b43f
106 lines
3.7 KiB
Python
106 lines
3.7 KiB
Python
# Copyright 2016 Cloudbase Solutions Srl
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# All Rights Reserved.
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#
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# Author: Alin Balutoiu <abalutoiu@cloudbasesolutions.com>
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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 six
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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 os_win import utilsfactory
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from os_win import constants
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from os_win import exceptions as os_win_exc
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from designate.backend.agent_backend import base
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from designate import exceptions
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LOG = logging.getLogger(__name__)
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class MSDNSBackend(base.AgentBackend):
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__plugin_name__ = 'msdns'
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__backend_status__ = 'experimental'
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def __init__(self, agent_service):
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"""Configure the backend"""
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super(MSDNSBackend, self).__init__(agent_service)
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self._dnsutils = utilsfactory.get_dnsutils()
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masters = cfg.CONF['service:agent'].masters
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if not masters:
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raise exceptions.Backend("Missing agent AXFR masters")
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# Only ip addresses are needed
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self._masters = [ns.split(":")[0] for ns in masters]
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LOG.info("AXFR masters: %r", self._masters)
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def start(self):
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"""Start the backend"""
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LOG.info("Started msdns backend")
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def find_zone_serial(self, zone_name):
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"""Return the zone's serial"""
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zone_name = zone_name.rstrip(".")
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LOG.debug("Finding zone: %s", zone_name)
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try:
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return self._dnsutils.get_zone_serial(zone_name)
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except os_win_exc.DNSZoneNotFound:
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# Return None if the zone was not found
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return None
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def create_zone(self, zone):
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"""Create a new DNS Zone"""
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zone_name = zone.origin.to_text(omit_final_dot=True)
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if six.PY3 and isinstance(zone_name, bytes):
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zone_name = zone_name.decode('utf-8')
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LOG.debug("Creating zone: %s", zone_name)
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try:
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self._dnsutils.zone_create(
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zone_name=zone_name,
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zone_type=constants.DNS_ZONE_TYPE_SECONDARY,
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ds_integrated=False,
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ip_addrs=self._masters)
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except os_win_exc.DNSZoneAlreadyExists:
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# Zone already exists, check its properties to see if the
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# existing zone is identical to the requested one
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zone_properties = self._dnsutils.get_zone_properties(zone_name)
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identical_zone_exists = (
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zone_properties['zone_type'] == (
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constants.DNS_ZONE_TYPE_SECONDARY) and
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zone_properties['ds_integrated'] is False and
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set(zone_properties['master_servers']) == set(self._masters))
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if not identical_zone_exists:
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raise
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def update_zone(self, zone):
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"""Instruct MSDNS to request an AXFR from MiniDNS.
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"""
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zone_name = zone.origin.to_text(omit_final_dot=True)
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if six.PY3 and isinstance(zone_name, bytes):
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zone_name = zone_name.decode('utf-8')
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LOG.debug("Updating zone: %s", zone_name)
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self._dnsutils.zone_update(zone_name)
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def delete_zone(self, zone_name):
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"""Delete a DNS Zone
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Do not raise exception if the zone does not exist.
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"""
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LOG.debug('Deleting zone: %s' % zone_name)
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zone_name = zone_name.rstrip(".")
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self._dnsutils.zone_delete(zone_name)
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