147 lines
5.0 KiB
Python
147 lines
5.0 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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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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- 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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__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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