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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 st2common import log as logging |
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from st2common.constants.timer import TIMER_ENABLED_LOG_LINE, TIMER_DISABLED_LOG_LINE |
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from st2common.logging.misc import get_logger_name_for_module |
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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 st2reactor.rules import config |
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from st2reactor.rules import worker |
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from st2reactor.timer.base import St2Timer |
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monkey_patch() |
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LOGGER_NAME = get_logger_name_for_module(sys.modules[__name__]) |
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LOG = logging.getLogger(LOGGER_NAME) |
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def _setup(): |
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common_setup(service='rulesengine', config=config, setup_db=True, register_mq_exchanges=True, |
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register_signal_handlers=True) |
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def _teardown(): |
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common_teardown() |
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def _kickoff_timer(timer): |
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timer.start() |
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def _run_worker(): |
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LOG.info('(PID=%s) RulesEngine started.', os.getpid()) |
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timer = None |
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rules_engine_worker = worker.get_worker() |
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try: |
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timer_thread = None |
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if cfg.CONF.timer.enable: |
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timer = St2Timer(local_timezone=cfg.CONF.timer.local_timezone) |
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timer_thread = eventlet.spawn(_kickoff_timer, timer) |
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LOG.info(TIMER_ENABLED_LOG_LINE) |
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else: |
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LOG.info(TIMER_DISABLED_LOG_LINE) |
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rules_engine_worker.start() |
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if timer: |
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return timer_thread.wait() and rules_engine_worker.wait() |
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else: |
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return rules_engine_worker.wait() |
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except (KeyboardInterrupt, SystemExit): |
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LOG.info('(PID=%s) RulesEngine stopped.', os.getpid()) |
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rules_engine_worker.shutdown() |
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except: |
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LOG.exception('(PID:%s) RulesEngine quit due to exception.', os.getpid()) |
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return 1 |
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finally: |
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if timer: |
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timer.cleanup() |
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return 0 |
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def main(): |
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try: |
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_setup() |
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return _run_worker() |
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except SystemExit as exit_code: |
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sys.exit(exit_code) |
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except: |
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LOG.exception('(PID=%s) RulesEngine 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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StackStorm /
st2
