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# Licensed to the StackStorm, Inc ('StackStorm') under one or more |
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# contributor license agreements. See the NOTICE file distributed with |
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# this work for additional information regarding copyright ownership. |
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# The ASF licenses this file to You under the Apache License, Version 2.0 |
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# (the "License"); you may not use this file except in compliance with |
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# the License. You may obtain 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, |
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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# See the License for the specific language governing permissions and |
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# limitations under the License. |
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import os |
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import sys |
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import eventlet |
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from oslo_config import cfg |
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from eventlet import wsgi |
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from st2common import log as logging |
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from st2common.service_setup import setup as common_setup |
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from st2common.service_setup import teardown as common_teardown |
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from st2common.util.monkey_patch import monkey_patch |
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from st2api import config |
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config.register_opts() |
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from st2api import app |
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__all__ = [ |
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'main' |
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] |
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monkey_patch() |
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LOG = logging.getLogger(__name__) |
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# How much time to give to the request in progress to finish in seconds before killing them |
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WSGI_SERVER_REQUEST_SHUTDOWN_TIME = 2 |
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def _setup(): |
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common_setup(service='api', config=config, setup_db=True, register_mq_exchanges=True, |
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register_signal_handlers=True, register_internal_trigger_types=True) |
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def _run_server(): |
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host = cfg.CONF.api.host |
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port = cfg.CONF.api.port |
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LOG.info('(PID=%s) ST2 API is serving on http://%s:%s.', os.getpid(), host, port) |
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max_pool_size = eventlet.wsgi.DEFAULT_MAX_SIMULTANEOUS_REQUESTS |
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worker_pool = eventlet.GreenPool(max_pool_size) |
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sock = eventlet.listen((host, port)) |
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wsgi.server(sock, app.setup_app(), custom_pool=worker_pool) |
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return 0 |
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def _teardown(): |
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common_teardown() |
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def main(): |
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try: |
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_setup() |
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return _run_server() |
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except SystemExit as exit_code: |
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sys.exit(exit_code) |
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except Exception: |
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LOG.exception('(PID=%s) ST2 API quit due to exception.', os.getpid()) |
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return 1 |
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finally: |
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_teardown() |
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Plexxi /
st2
Cyclic imports may cause partly loaded modules to be returned. This might lead to unexpected runtime behavior which is hard to debug.