55c74e1e4b
When running in celery-eager mode, the celery machinery hides all exceptions inside "celery tasks" (you can find out about them on the task handle somehow). Currently much better to propagate them straight up, so they're visible on the console.
153 lines
5.2 KiB
Python
153 lines
5.2 KiB
Python
# GNU MediaGoblin -- federated, autonomous media hosting
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# Copyright (C) 2011 Free Software Foundation, Inc
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import os
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import sys
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from paste.deploy.converters import asbool, asint, aslist
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KNOWN_CONFIG_BOOLS = [
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'CELERY_RESULT_PERSISTENT',
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'CELERY_CREATE_MISSING_QUEUES',
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'BROKER_USE_SSL', 'BROKER_CONNECTION_RETRY',
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'CELERY_ALWAYS_EAGER', 'CELERY_EAGER_PROPAGATES_EXCEPTIONS',
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'CELERY_IGNORE_RESULT', 'CELERY_TRACK_STARTED',
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'CELERY_DISABLE_RATE_LIMITS', 'CELERY_ACKS_LATE',
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'CELERY_STORE_ERRORS_EVEN_IF_IGNORED',
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'CELERY_SEND_TASK_ERROR_EMAILS',
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'CELERY_SEND_EVENTS', 'CELERY_SEND_TASK_SENT_EVENT',
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'CELERYD_LOG_COLOR', 'CELERY_REDIRECT_STDOUTS',
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]
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KNOWN_CONFIG_INTS = [
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'CELERYD_CONCURRENCY',
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'CELERYD_PREFETCH_MULTIPLIER',
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'CELERY_AMQP_TASK_RESULT_EXPIRES',
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'CELERY_AMQP_TASK_RESULT_CONNECTION_MAX',
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'REDIS_PORT', 'REDIS_DB',
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'BROKER_PORT', 'BROKER_CONNECTION_TIMEOUT',
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'CELERY_BROKER_CONNECTION_MAX_RETRIES',
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'CELERY_TASK_RESULT_EXPIRES', 'CELERY_MAX_CACHED_RESULTS',
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'CELERY_DEFAULT_RATE_LIMIT', # ??
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'CELERYD_MAX_TASKS_PER_CHILD', 'CELERYD_TASK_TIME_LIMIT',
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'CELERYD_TASK_SOFT_TIME_LIMIT',
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'MAIL_PORT', 'CELERYBEAT_MAX_LOOP_INTERVAL',
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]
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KNOWN_CONFIG_FLOATS = [
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'CELERYD_ETA_SCHEDULER_PRECISION',
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]
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KNOWN_CONFIG_LISTS = [
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'CELERY_ROUTES', 'CELERY_IMPORTS',
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]
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## Needs special processing:
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# ADMINS, ???
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# there are a lot more; we should list here or process specially.
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def asfloat(obj):
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try:
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return float(obj)
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except (TypeError, ValueError), e:
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raise ValueError(
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"Bad float value: %r" % obj)
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MANDATORY_CELERY_IMPORTS = ['mediagoblin.process_media']
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DEFAULT_SETTINGS_MODULE = 'mediagoblin.celery_setup.dummy_settings_module'
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def setup_celery_from_config(app_config, global_config,
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settings_module=DEFAULT_SETTINGS_MODULE,
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force_celery_always_eager=False,
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set_environ=True):
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"""
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Take a mediagoblin app config and the global config from a paste
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factory and try to set up a celery settings module from this.
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Args:
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- app_config: the application config section
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- global_config: the entire paste config, all sections
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- settings_module: the module to populate, as a string
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-
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- set_environ: if set, this will CELERY_CONFIG_MODULE to the
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settings_module
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"""
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if asbool(app_config.get('use_celery_environment_var')) == True:
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# Don't setup celery based on our config file.
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return
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celery_conf_section = app_config.get('celery_section', 'celery')
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if global_config.has_key(celery_conf_section):
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celery_conf = global_config[celery_conf_section]
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else:
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celery_conf = {}
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celery_settings = {}
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# set up mongodb stuff
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celery_settings['CELERY_RESULT_BACKEND'] = 'mongodb'
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if not celery_settings.has_key('BROKER_BACKEND'):
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celery_settings['BROKER_BACKEND'] = 'mongodb'
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celery_mongo_settings = {}
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if app_config.has_key('db_host'):
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celery_mongo_settings['host'] = app_config['db_host']
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if celery_settings['BROKER_BACKEND'] == 'mongodb':
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celery_settings['BROKER_HOST'] = app_config['db_host']
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if app_config.has_key('db_port'):
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celery_mongo_settings['port'] = asint(app_config['db_port'])
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if celery_settings['BROKER_BACKEND'] == 'mongodb':
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celery_settings['BROKER_PORT'] = asint(app_config['db_port'])
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celery_mongo_settings['database'] = app_config.get('db_name', 'mediagoblin')
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celery_settings['CELERY_MONGODB_BACKEND_SETTINGS'] = celery_mongo_settings
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# Add anything else
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for key, value in celery_conf.iteritems():
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key = key.upper()
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if key in KNOWN_CONFIG_BOOLS:
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value = asbool(value)
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elif key in KNOWN_CONFIG_INTS:
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value = asint(value)
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elif key in KNOWN_CONFIG_FLOATS:
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value = asfloat(value)
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elif key in KNOWN_CONFIG_LISTS:
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value = aslist(value)
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celery_settings[key] = value
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# add mandatory celery imports
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celery_imports = celery_settings.setdefault('CELERY_IMPORTS', [])
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celery_imports.extend(MANDATORY_CELERY_IMPORTS)
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if force_celery_always_eager:
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celery_settings['CELERY_ALWAYS_EAGER'] = True
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celery_settings['CELERY_EAGER_PROPAGATES_EXCEPTIONS'] = True
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__import__(settings_module)
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this_module = sys.modules[settings_module]
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for key, value in celery_settings.iteritems():
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setattr(this_module, key, value)
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if set_environ:
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os.environ['CELERY_CONFIG_MODULE'] = settings_module
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