heat-all: all-in-one heat launcher
This patch implements a new heat-all command that can be used to launch a single process version of the configured heat services. The end user can control which services are launched by setting 'enabled_services' in the heat config file: [heat_all] enabled_services = api,engine One use case for this launcher would be to launch a single process heat using rpc_backend = fake, connection=sqlite://heat.db, to have access to a minimal all in one Heat API/Engine for TripleO undercloud deployments via Heat templates. Change-Id: Ic35bdc455fe1397ac575522af0c8fca96dd95676
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#!/usr/bin/env python
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""Heat All Server.
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An OpenStack Heat server that can run all services.
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"""
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import eventlet
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eventlet.monkey_patch(os=False)
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import six
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import sys
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from heat.cmd import api
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from heat.cmd import api_cfn
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from heat.cmd import api_cloudwatch
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from heat.cmd import engine
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from heat.common import config
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from heat.common import messaging
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from heat import version
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from oslo_config import cfg
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import oslo_i18n as i18n
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from oslo_log import log as logging
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from oslo_service import systemd
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i18n.enable_lazy()
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LOG = logging.getLogger('heat.all')
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API_LAUNCH_OPTS = {'setup_logging': False}
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LAUNCH_SERVICES = {
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'engine': [engine.launch_engine, {'setup_logging': False}],
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'api': [api.launch_api, API_LAUNCH_OPTS],
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'api_cfn': [api_cfn.launch_cfn_api, API_LAUNCH_OPTS],
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'api_cloudwatch': [api_cloudwatch.launch_cloudwatch_api, API_LAUNCH_OPTS],
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}
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services_opt = cfg.ListOpt(
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'enabled_services',
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default=['engine', 'api', 'api_cfn'],
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help='Specifies the heat services that are enabled when running heat-all. '
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'Valid options are all or any combination of '
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'api, engine, api_cfn, or api_cloudwatch.'
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)
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cfg.CONF.register_opt(services_opt, group='heat_all')
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def _start_service_threads(services):
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threads = []
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for option in services:
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launch_func = LAUNCH_SERVICES[option][0]
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kwargs = LAUNCH_SERVICES[option][1]
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threads.append(eventlet.spawn(launch_func, **kwargs))
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return threads
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def launch_all(setup_logging=True):
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if setup_logging:
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logging.register_options(cfg.CONF)
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cfg.CONF(project='heat', prog='heat-all',
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version=version.version_info.version_string())
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if setup_logging:
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logging.setup(cfg.CONF, 'heat-all')
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config.set_config_defaults()
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messaging.setup()
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return _start_service_threads(set(cfg.CONF.heat_all.enabled_services))
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def main():
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try:
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threads = launch_all()
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services = [thread.wait() for thread in threads]
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systemd.notify_once()
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[service.wait() for service in services]
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except RuntimeError as e:
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msg = six.text_type(e)
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sys.exit("ERROR: %s" % msg)
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LOG = logging.getLogger('heat.api')
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LOG = logging.getLogger('heat.api')
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def launch_api(setup_logging=True):
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if setup_logging:
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logging.register_options(cfg.CONF)
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cfg.CONF(project='heat', prog='heat-api',
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version=version.version_info.version_string())
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if setup_logging:
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logging.setup(cfg.CONF, 'heat-api')
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config.set_config_defaults()
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messaging.setup()
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app = config.load_paste_app()
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port = cfg.CONF.heat_api.bind_port
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host = cfg.CONF.heat_api.bind_host
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LOG.info(_LI('Starting Heat REST API on %(host)s:%(port)s'),
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{'host': host, 'port': port})
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profiler.setup('heat-api', host)
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gmr.TextGuruMeditation.setup_autorun(version)
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server = wsgi.Server('heat-api', cfg.CONF.heat_api)
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server.start(app, default_port=port)
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return server
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def main():
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def main():
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try:
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try:
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logging.register_options(cfg.CONF)
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server = launch_api()
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cfg.CONF(project='heat', prog='heat-api',
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version=version.version_info.version_string())
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logging.setup(cfg.CONF, 'heat-api')
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config.set_config_defaults()
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messaging.setup()
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app = config.load_paste_app()
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port = cfg.CONF.heat_api.bind_port
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host = cfg.CONF.heat_api.bind_host
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LOG.info(_LI('Starting Heat REST API on %(host)s:%(port)s'),
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{'host': host, 'port': port})
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profiler.setup('heat-api', host)
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gmr.TextGuruMeditation.setup_autorun(version)
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server = wsgi.Server('heat-api', cfg.CONF.heat_api)
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server.start(app, default_port=port)
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systemd.notify_once()
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systemd.notify_once()
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server.wait()
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server.wait()
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except RuntimeError as e:
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except RuntimeError as e:
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LOG = logging.getLogger('heat.api.cfn')
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LOG = logging.getLogger('heat.api.cfn')
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def main():
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def launch_cfn_api(setup_logging=True):
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try:
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if setup_logging:
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logging.register_options(cfg.CONF)
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logging.register_options(cfg.CONF)
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cfg.CONF(project='heat',
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cfg.CONF(project='heat',
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prog='heat-api-cfn',
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prog='heat-api-cfn',
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version=version.version_info.version_string())
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version=version.version_info.version_string())
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if setup_logging:
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logging.setup(cfg.CONF, 'heat-api-cfn')
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logging.setup(cfg.CONF, 'heat-api-cfn')
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logging.set_defaults()
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logging.set_defaults()
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config.set_config_defaults()
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config.set_config_defaults()
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messaging.setup()
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messaging.setup()
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app = config.load_paste_app()
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app = config.load_paste_app()
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port = cfg.CONF.heat_api_cfn.bind_port
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port = cfg.CONF.heat_api_cfn.bind_port
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host = cfg.CONF.heat_api_cfn.bind_host
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host = cfg.CONF.heat_api_cfn.bind_host
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LOG.info(_LI('Starting Heat API on %(host)s:%(port)s'),
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LOG.info(_LI('Starting Heat API on %(host)s:%(port)s'),
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{'host': host, 'port': port})
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{'host': host, 'port': port})
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profiler.setup('heat-api-cfn', host)
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profiler.setup('heat-api-cfn', host)
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gmr.TextGuruMeditation.setup_autorun(version)
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gmr.TextGuruMeditation.setup_autorun(version)
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server = wsgi.Server('heat-api-cfn', cfg.CONF.heat_api_cfn)
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server = wsgi.Server('heat-api-cfn', cfg.CONF.heat_api_cfn)
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server.start(app, default_port=port)
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server.start(app, default_port=port)
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return server
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def main():
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try:
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server = launch_cfn_api()
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systemd.notify_once()
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systemd.notify_once()
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server.wait()
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server.wait()
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except RuntimeError as e:
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except RuntimeError as e:
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LOG = logging.getLogger('heat.api.cloudwatch')
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LOG = logging.getLogger('heat.api.cloudwatch')
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def main():
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def launch_cloudwatch_api(setup_logging=True):
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try:
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if setup_logging:
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logging.register_options(cfg.CONF)
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logging.register_options(cfg.CONF)
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cfg.CONF(project='heat',
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cfg.CONF(project='heat',
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prog='heat-api-cloudwatch',
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prog='heat-api-cloudwatch',
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version=version.version_info.version_string())
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version=version.version_info.version_string())
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if setup_logging:
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logging.setup(cfg.CONF, 'heat-api-cloudwatch')
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logging.setup(cfg.CONF, 'heat-api-cloudwatch')
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logging.set_defaults()
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logging.set_defaults()
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config.set_config_defaults()
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config.set_config_defaults()
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messaging.setup()
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messaging.setup()
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app = config.load_paste_app()
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app = config.load_paste_app()
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port = cfg.CONF.heat_api_cloudwatch.bind_port
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port = cfg.CONF.heat_api_cloudwatch.bind_port
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host = cfg.CONF.heat_api_cloudwatch.bind_host
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host = cfg.CONF.heat_api_cloudwatch.bind_host
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LOG.info(_LI('Starting Heat CloudWatch API on %(host)s:%(port)s'),
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LOG.info(_LI('Starting Heat CloudWatch API on %(host)s:%(port)s'),
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{'host': host, 'port': port})
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{'host': host, 'port': port})
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profiler.setup('heat-api-cloudwatch', host)
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profiler.setup('heat-api-cloudwatch', host)
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gmr.TextGuruMeditation.setup_autorun(version)
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gmr.TextGuruMeditation.setup_autorun(version)
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server = wsgi.Server('heat-api-cloudwatch',
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server = wsgi.Server('heat-api-cloudwatch',
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cfg.CONF.heat_api_cloudwatch)
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cfg.CONF.heat_api_cloudwatch)
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server.start(app, default_port=port)
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server.start(app, default_port=port)
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return server
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def main():
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try:
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server = launch_cloudwatch_api()
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systemd.notify_once()
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systemd.notify_once()
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server.wait()
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server.wait()
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except RuntimeError as e:
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except RuntimeError as e:
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LOG = logging.getLogger('heat.engine')
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LOG = logging.getLogger('heat.engine')
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def main():
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def launch_engine(setup_logging=True):
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logging.register_options(cfg.CONF)
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if setup_logging:
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logging.register_options(cfg.CONF)
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cfg.CONF(project='heat', prog='heat-engine',
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cfg.CONF(project='heat', prog='heat-engine',
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version=version.version_info.version_string())
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version=version.version_info.version_string())
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logging.setup(cfg.CONF, 'heat-engine')
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if setup_logging:
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logging.set_defaults()
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logging.setup(cfg.CONF, 'heat-engine')
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logging.set_defaults()
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messaging.setup()
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messaging.setup()
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config.startup_sanity_check()
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config.startup_sanity_check()
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# We create the periodic tasks here, which mean they are created
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# We create the periodic tasks here, which mean they are created
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# only in the parent process when num_engine_workers>1 is specified
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# only in the parent process when num_engine_workers>1 is specified
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srv.create_periodic_tasks()
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srv.create_periodic_tasks()
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return launcher
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def main():
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launcher = launch_engine()
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launcher.wait()
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launcher.wait()
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[entry_points]
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[entry_points]
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console_scripts =
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console_scripts =
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heat-all = heat.cmd.all:main
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heat-api = heat.cmd.api:main
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heat-api = heat.cmd.api:main
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heat-api-cfn = heat.cmd.api_cfn:main
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heat-api-cfn = heat.cmd.api_cfn:main
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heat-api-cloudwatch = heat.cmd.api_cloudwatch:main
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heat-api-cloudwatch = heat.cmd.api_cloudwatch:main
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