How to interrupt a celery task?

Question

Flask

Simple example

from celery import Celery

app = Celery('hello', broker='redis://localhost:6379/0')
id_task=''

@app.task(bind=True)
def testtask(self):
    id_task=str(self.request.id)
    while True:
        pass
    return 'ok'

def stoptask():
    ???? (task_id)

Tried like this
from celery.contrib.abortable import AbortableAsyncResult

stop = AbortableAsyncResult(task_id)
stop.abort()

Nothing happens.

Answer 1

First, the task must be Abortable:

from celery.contrib.abortable import AbortableTask

@app.task(bind=True, base=AbortableTask)
def testtask(self):
    ...

Secondly, instead while True:ofwhile not self.is_aborted():