Celery Beat: How to define periodic tasks defined as classes (class based tasks)

问题

Till now I had only worked with Celery tasks defined as functions. I used to define their periodicity in the CELERYBEAT_SCHEDULE parameter. Like this:

from datetime import timedelta

CELERYBEAT_SCHEDULE = {
    'add-every-30-seconds': {
        'task': 'tasks.add',
        'schedule': timedelta(seconds=30),
        'args': (16, 16)
    },
}

Now I am trying to use class-based tasks, like this one:

class MyTask(Task):
    """My Task."""

    def run(self, source, *args, **kwargs):
        """Run the celery task."""
        logger.info("Hi!")

My question is: how do I define the periodic execution of class-based tasks?

来源：https://stackoverflow.com/questions/37924442/celery-beat-how-to-define-periodic-tasks-defined-as-classes-class-based-tasks