96 lines
2.7 KiB
Python
96 lines
2.7 KiB
Python
# Copyright (c) 2015, Frappe Technologies Pvt. Ltd. and Contributors
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# MIT License. See license.txt
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from __future__ import unicode_literals, absolute_import
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from celery import Celery
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# initiate logger
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from celery.utils.log import get_task_logger
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task_logger = get_task_logger(__name__)
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from datetime import timedelta
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import frappe
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import json
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import os
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SITES_PATH = os.environ.get('SITES_PATH', '.')
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# defaults
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DEFAULT_CELERY_BROKER = "redis://localhost"
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DEFAULT_CELERY_BACKEND = "redis://localhost"
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DEFAULT_SCHEDULER_INTERVAL = 300
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LONGJOBS_PREFIX = "longjobs@"
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ASYNC_TASKS_PREFIX = "async@"
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_app = None
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def get_celery():
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global _app
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if not _app:
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conf = frappe.get_site_config(sites_path=SITES_PATH)
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_app = Celery('frappe',
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broker=conf.celery_broker or DEFAULT_CELERY_BROKER,
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backend=conf.async_redis_server or DEFAULT_CELERY_BACKEND)
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setup_celery(_app, conf)
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return _app
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def setup_celery(app, conf):
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app.autodiscover_tasks(frappe.get_all_apps(with_frappe=True, with_internal_apps=False,
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sites_path=SITES_PATH))
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app.conf.CELERY_TASK_SERIALIZER = 'json'
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app.conf.CELERY_ACCEPT_CONTENT = ['json']
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app.conf.CELERY_TIMEZONE = 'UTC'
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app.conf.CELERY_RESULT_SERIALIZER = 'json'
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app.CELERY_TASK_RESULT_EXPIRES = timedelta(0, 3600)
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if conf.celery_queue_per_site:
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app.conf.CELERY_ROUTES = (SiteRouter(), AsyncTaskRouter())
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app.conf.CELERYBEAT_SCHEDULE = get_beat_schedule(conf)
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if conf.celery_error_emails:
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app.conf.CELERY_SEND_TASK_ERROR_EMAILS = True
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for k, v in conf.celery_error_emails.iteritems():
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setattr(app.conf, k, v)
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class SiteRouter(object):
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def route_for_task(self, task, args=None, kwargs=None):
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if hasattr(frappe.local, 'site'):
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if kwargs and kwargs.get("event", "").endswith("_long"):
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return get_queue(frappe.local.site, LONGJOBS_PREFIX)
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else:
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return get_queue(frappe.local.site)
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return None
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class AsyncTaskRouter(object):
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def route_for_task(self, task, args=None, kwargs=None):
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if task == "frappe.tasks.run_async_task" and hasattr(frappe.local, 'site'):
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return get_queue(frappe.local.site, ASYNC_TASKS_PREFIX)
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def get_queue(site, prefix=None):
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return {'queue': "{}{}".format(prefix or "", site)}
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def get_beat_schedule(conf):
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schedule = {
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'scheduler': {
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'task': 'frappe.tasks.enqueue_scheduler_events',
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'schedule': timedelta(seconds=conf.scheduler_interval or DEFAULT_SCHEDULER_INTERVAL)
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},
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}
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if conf.celery_queue_per_site:
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schedule['sync_queues'] = {
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'task': 'frappe.tasks.sync_queues',
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'schedule': timedelta(seconds=conf.scheduler_interval or DEFAULT_SCHEDULER_INTERVAL)
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}
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return schedule
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def celery_task(*args, **kwargs):
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return get_celery().task(*args, **kwargs)
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if __name__ == '__main__':
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get_celery().start()
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