126 lines
4.2 KiB
Python
126 lines
4.2 KiB
Python
# coding=utf-8
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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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from iotronic.common import exception
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from iotronic.common.i18n import _LI
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from iotronic.common.i18n import _LW
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from iotronic.conductor import endpoints as endp
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from iotronic.db import api as dbapi
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import os
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from oslo_config import cfg
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from oslo_log import log as logging
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import oslo_messaging
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from oslo_messaging.rpc import dispatcher
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import signal
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import time
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LOG = logging.getLogger(__name__)
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MANAGER_TOPIC = 'iotronic.conductor_manager'
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RAGENT = None
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conductor_opts = [
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cfg.StrOpt('api_url',
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help='URL of Iotronic API service. If not set iotronic can '
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'get the current value from the keystone service '
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'catalog.'),
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cfg.IntOpt('heartbeat_timeout',
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default=60,
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help='Maximum time (in seconds) since the last check-in '
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'of a conductor. A conductor is considered inactive '
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'when this time has been exceeded.'),
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cfg.IntOpt('service_port_min',
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default=50000,
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help='Min value for genereting random ports for services'),
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cfg.IntOpt('service_port_max',
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default=60000,
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help='Max value for genereting random ports for services'),
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]
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CONF = cfg.CONF
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CONF.register_opts(conductor_opts, 'conductor')
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class ConductorManager(object):
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RPC_API_VERSION = '1.0'
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def __init__(self, host):
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logging.register_options(CONF)
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CONF(project='iotronic')
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logging.setup(CONF, "iotronic-conductor")
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signal.signal(signal.SIGINT, self.stop_handler)
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if not host:
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host = CONF.host
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self.host = host
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self.topic = MANAGER_TOPIC
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self.dbapi = dbapi.get_instance()
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try:
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cdr = self.dbapi.register_conductor(
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{'hostname': self.host})
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except exception.ConductorAlreadyRegistered:
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LOG.warn(_LW("A conductor with hostname %(hostname)s "
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"was previously registered. Updating registration"),
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{'hostname': self.host})
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cdr = self.dbapi.register_conductor({'hostname': self.host},
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update_existing=True)
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self.conductor = cdr
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transport = oslo_messaging.get_transport(cfg.CONF)
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target = oslo_messaging.Target(topic=self.topic, server=self.host,
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version=self.RPC_API_VERSION)
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ragent = self.dbapi.get_registration_wampagent()
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LOG.info("Found registration agent: %s on %s",
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ragent.hostname, ragent.wsurl)
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endpoints = [
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endp.ConductorEndpoint(ragent),
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]
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access_policy = dispatcher.DefaultRPCAccessPolicy
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self.server = oslo_messaging.get_rpc_server(
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transport, target,
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endpoints, executor='threading',
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access_policy=access_policy)
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self.server.start()
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while True:
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time.sleep(1)
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def stop_handler(self, signum, frame):
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LOG.info("Stopping server")
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self.server.stop()
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self.server.wait()
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self.del_host()
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os._exit(0)
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def del_host(self, deregister=True):
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if deregister:
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try:
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self.dbapi.unregister_conductor(self.host)
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LOG.info(_LI('Successfully stopped conductor with hostname '
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'%(hostname)s.'),
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{'hostname': self.host})
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except exception.ConductorNotFound:
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pass
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else:
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LOG.info(_LI('Not deregistering conductor with hostname '
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'%(hostname)s.'),
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{'hostname': self.host})
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