85 lines
2.7 KiB
Python
85 lines
2.7 KiB
Python
# Copyright 2017 Catalyst IT Limited
|
|
#
|
|
# 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 oslo_messaging.rpc import dispatcher
|
|
from oslo_service import service
|
|
|
|
from qinling.db import api as db_api
|
|
from qinling.engine import default_engine as engine
|
|
from qinling.orchestrator import base as orchestra_base
|
|
from qinling import rpc
|
|
from qinling.services import periodics
|
|
|
|
LOG = logging.getLogger(__name__)
|
|
CONF = cfg.CONF
|
|
|
|
|
|
class EngineService(service.Service):
|
|
def __init__(self):
|
|
super(EngineService, self).__init__()
|
|
self.server = None
|
|
|
|
def start(self):
|
|
orchestrator = orchestra_base.load_orchestrator(CONF)
|
|
db_api.setup_db()
|
|
|
|
topic = CONF.engine.topic
|
|
server = CONF.engine.host
|
|
transport = messaging.get_rpc_transport(CONF)
|
|
target = messaging.Target(topic=topic, server=server, fanout=False)
|
|
endpoint = engine.DefaultEngine(orchestrator)
|
|
access_policy = dispatcher.DefaultRPCAccessPolicy
|
|
self.server = messaging.get_rpc_server(
|
|
transport,
|
|
target,
|
|
[endpoint],
|
|
executor='eventlet',
|
|
access_policy=access_policy,
|
|
serializer=rpc.ContextSerializer(
|
|
messaging.serializer.JsonPayloadSerializer()
|
|
)
|
|
)
|
|
|
|
LOG.info('Starting function mapping periodic task...')
|
|
periodics.start_function_mapping_handler(endpoint)
|
|
|
|
LOG.info('Starting engine...')
|
|
self.server.start()
|
|
|
|
super(EngineService, self).start()
|
|
|
|
def stop(self, graceful=False):
|
|
periodics.stop()
|
|
|
|
if self.server:
|
|
LOG.info('Stopping engine...')
|
|
self.server.stop()
|
|
if graceful:
|
|
LOG.info(
|
|
'Consumer successfully stopped. Waiting for final '
|
|
'messages to be processed...'
|
|
)
|
|
self.server.wait()
|
|
|
|
super(EngineService, self).stop(graceful=graceful)
|
|
|
|
def reset(self):
|
|
if self.server:
|
|
self.server.reset()
|
|
|
|
super(EngineService, self).reset()
|