用动态源（数据库）替换Celery Beat“ CELERYBEAT_SCHEDULE”

Question

In the Celery docs , the standard way to set the schedule of tasks is documented as hardcoding the schedule into the config file.

However, it also hints that this can be replaced with a custom backend. I see there is a dynamic, database driven option for Django but I'm using a simple Flask app to define my tasks.

Does anyone have a way to dynamically load the schedule, avoiding the need to restart the celery beat worker, either by dynamically pulling the schedule from a database or by reloading the schedule from a text file on a regular basis? Is it as simple as putting a reload() call around the schedule in a text file, perhaps even as its own scheduled celery task?

Answer 1

CELERYBEAT_SCHEDULE is just init/config sugar and the object is available from within a bound task at:

self.app.conf['CELERYBEAT_SCHEDULE']

You might write a periodic task that pulls down new values from some back end.