65 lines
2.1 KiB
Python
65 lines
2.1 KiB
Python
# Copyright 2016 NEC Corporation. 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_concurrency import processutils
|
|
from oslo_config import cfg
|
|
from oslo_service import service
|
|
from oslo_service import wsgi
|
|
|
|
from mistral.api import app
|
|
from mistral.rpc import clients as rpc_clients
|
|
|
|
|
|
class WSGIService(service.ServiceBase):
|
|
"""Provides ability to launch Mistral API from wsgi app."""
|
|
|
|
def __init__(self, name):
|
|
self.name = name
|
|
self.app = app.setup_app()
|
|
self.workers = (
|
|
cfg.CONF.api.api_workers or processutils.get_worker_count()
|
|
)
|
|
|
|
self.server = wsgi.Server(
|
|
cfg.CONF,
|
|
name,
|
|
self.app,
|
|
host=cfg.CONF.api.host,
|
|
port=cfg.CONF.api.port,
|
|
use_ssl=cfg.CONF.api.enable_ssl_api
|
|
)
|
|
|
|
def start(self):
|
|
# NOTE: When oslo.service creates an API worker it forks a new child
|
|
# system process. The child process is created as precise copy of the
|
|
# parent process (see how os.fork() works) and within the child process
|
|
# oslo.service calls service's start() method again to reinitialize
|
|
# what's needed. So we must clean up all RPC clients so that RPC works
|
|
# properly (e.g. message routing for synchronous calls may be based on
|
|
# generated queue names).
|
|
rpc_clients.cleanup()
|
|
|
|
self.server.start()
|
|
|
|
print('API server started.')
|
|
|
|
def stop(self):
|
|
self.server.stop()
|
|
|
|
def wait(self):
|
|
self.server.wait()
|
|
|
|
def reset(self):
|
|
self.server.reset()
|