RETIRED, Function as a Service for OpenStack
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# 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.
import cotyledon
from oslo_config import cfg
from oslo_log import log as logging
import oslo_messaging as messaging
from oslo_messaging.rpc import dispatcher
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
from qinling.utils.openstack import keystone as keystone_utils
LOG = logging.getLogger(__name__)
CONF = cfg.CONF
class EngineService(cotyledon.Service):
def __init__(self, worker_id):
super(EngineService, self).__init__(worker_id)
self.server = None
def run(self):
qinling_endpoint = keystone_utils.get_qinling_endpoint()
orchestrator = orchestra_base.load_orchestrator(CONF, qinling_endpoint)
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, qinling_endpoint)
access_policy = dispatcher.DefaultRPCAccessPolicy
self.server = messaging.get_rpc_server(
transport,
target,
[endpoint],
executor='threading',
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()
def terminate(self):
periodics.stop()
if self.server:
LOG.info('Stopping engine...')
self.server.stop()
self.server.wait()