fcb3290be7
Changing the topic currently changes the service_name. This breaks the service, as the service_name is also used to load the appropriate configuration seection for the service. > self._service_config = CONF['service:%s' % self.service_name] * Renames cfg option [service:<name>].<name>_topic to [service:<name>].topic * Removed previously unused configs related to topics. * Added topic override for producer. * Added test coverage. Closes-Bug: #1832799 Change-Id: I16385361ec25025aa533df80793dfc4d22151cbb
143 lines
5.2 KiB
Python
143 lines
5.2 KiB
Python
# Copyright (c) 2014 Rackspace Hosting
|
|
# 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 oslo_config import cfg
|
|
from oslo_log import log as logging
|
|
import oslo_messaging as messaging
|
|
|
|
from designate import rpc
|
|
from designate.loggingutils import rpc_logging
|
|
|
|
CONF = cfg.CONF
|
|
LOG = logging.getLogger(__name__)
|
|
|
|
MDNS_API = None
|
|
|
|
|
|
def reset():
|
|
global MDNS_API
|
|
MDNS_API = None
|
|
|
|
|
|
@rpc_logging(LOG, 'mdns')
|
|
class MdnsAPI(object):
|
|
|
|
"""
|
|
Client side of the mdns RPC API.
|
|
|
|
Notify API version history:
|
|
|
|
1.0 - Added notify_zone_changed and poll_for_serial_number.
|
|
1.1 - Added get_serial_number.
|
|
2.0 - Changed method signatures
|
|
|
|
XFR API version history:
|
|
1.0 - Added perform_zone_xfr.
|
|
"""
|
|
RPC_NOTIFY_API_VERSION = '2.0'
|
|
RPC_XFR_API_VERSION = '1.0'
|
|
|
|
def __init__(self, topic=None):
|
|
self.topic = topic if topic else cfg.CONF['service:mdns'].topic
|
|
|
|
notify_target = messaging.Target(topic=self.topic,
|
|
namespace='notify',
|
|
version=self.RPC_NOTIFY_API_VERSION)
|
|
self.notify_client = rpc.get_client(notify_target, version_cap='2.0')
|
|
|
|
xfr_target = messaging.Target(topic=self.topic,
|
|
namespace='xfr',
|
|
version=self.RPC_XFR_API_VERSION)
|
|
self.xfr_client = rpc.get_client(xfr_target, version_cap='1.0')
|
|
|
|
@classmethod
|
|
def get_instance(cls):
|
|
"""
|
|
The rpc.get_client() which is called upon the API object initialization
|
|
will cause a assertion error if the designate.rpc.TRANSPORT isn't setup
|
|
by rpc.init() before.
|
|
|
|
This fixes that by creating the rpcapi when demanded.
|
|
"""
|
|
global MDNS_API
|
|
if not MDNS_API:
|
|
MDNS_API = cls()
|
|
return MDNS_API
|
|
|
|
def notify_zone_changed(self, context, zone, host, port, timeout,
|
|
retry_interval, max_retries, delay):
|
|
if CONF['service:worker'].notify and CONF['service:worker'].enabled:
|
|
LOG.debug('Letting worker send NOTIFYs instead')
|
|
return True
|
|
|
|
LOG.info(
|
|
"notify_zone_changed: Calling mdns for zone '%(zone)s', "
|
|
"serial '%(serial)s' to nameserver '%(host)s:%(port)s'",
|
|
{
|
|
'zone': zone.name,
|
|
'serial': zone.serial,
|
|
'host': host,
|
|
'port': port
|
|
})
|
|
# The notify_zone_changed method is a cast rather than a call since the
|
|
# caller need not wait for the notify to complete.
|
|
return self.notify_client.cast(
|
|
context, 'notify_zone_changed', zone=zone,
|
|
host=host, port=port, timeout=timeout,
|
|
retry_interval=retry_interval, max_retries=max_retries,
|
|
delay=delay)
|
|
|
|
def poll_for_serial_number(self, context, zone, nameserver, timeout,
|
|
retry_interval, max_retries, delay):
|
|
LOG.info(
|
|
"poll_for_serial_number: Calling mdns for zone '%(zone)s', "
|
|
"serial '%(serial)s' on nameserver '%(host)s:%(port)s'",
|
|
{
|
|
'zone': zone.name,
|
|
'serial': zone.serial,
|
|
'host': nameserver.host,
|
|
'port': nameserver.port
|
|
})
|
|
# The poll_for_serial_number method is a cast rather than a call since
|
|
# the caller need not wait for the poll to complete. Mdns informs pool
|
|
# manager of the return value using update_status
|
|
return self.notify_client.cast(
|
|
context, 'poll_for_serial_number', zone=zone,
|
|
nameserver=nameserver, timeout=timeout,
|
|
retry_interval=retry_interval, max_retries=max_retries,
|
|
delay=delay)
|
|
|
|
def get_serial_number(self, context, zone, host, port, timeout,
|
|
retry_interval, max_retries, delay):
|
|
LOG.info(
|
|
"get_serial_number: Calling mdns for zone '%(zone)s', serial "
|
|
"%(serial)s' on nameserver '%(host)s:%(port)s'",
|
|
{
|
|
'zone': zone.name,
|
|
'serial': zone.serial,
|
|
'host': host,
|
|
'port': port
|
|
})
|
|
cctxt = self.notify_client.prepare()
|
|
return cctxt.call(
|
|
context, 'get_serial_number', zone=zone,
|
|
host=host, port=port, timeout=timeout,
|
|
retry_interval=retry_interval, max_retries=max_retries,
|
|
delay=delay)
|
|
|
|
def perform_zone_xfr(self, context, zone):
|
|
LOG.info("perform_zone_xfr: Calling mdns for zone %(zone)s",
|
|
{"zone": zone.name})
|
|
return self.xfr_client.cast(context, 'perform_zone_xfr', zone=zone)
|