This is a Django project for understanding basic of Celery periodic task runner

Run the Following command in system:

pip install pipenv

Then run the following command to activate the virtual environment:

pipenv shell

After that run:

pipenv install

to install require file from pipfile.lock. Now you application is ready you just need to ensure redis is installed or not.

you can follow the link to install redis in your os if it is not installed.

https://redis.io/

Run the following command:

celery worker -A celery_redis_django -l info -B

or,

celery worker -A celery_redis_django -l info --beat #celery_redis_django = apps name

We will see following

 -------------- [email protected] v4.3.0 (rhubarb)
---- **** ----- 
--- * ***  * -- Darwin-18.6.0-x86_64-i386-64bit 2019-06-16 18:36:47
-- * - **** --- 
- ** ---------- [config]
- ** ---------- .> app:         celery_redis_django:0x103c56f28
- ** ---------- .> transport:   redis://localhost:6379//
- ** ---------- .> results:     redis://localhost:6379/
- *** --- * --- .> concurrency: 8 (prefork)
-- ******* ---- .> task events: OFF (enable -E to monitor tasks in this worker)
--- ***** ----- 
 -------------- [queues]
                .> celery           exchange=celery(direct) key=celery
                

[tasks]
  . celery_redis_django.celery.debug_task
  . second_task
  . task_display_funny_time

[2019-06-16 18:36:47,748: INFO/Beat] beat: Starting...
[2019-06-16 18:36:47,756: INFO/MainProcess] Connected to redis://localhost:6379//
[2019-06-16 18:36:47,770: INFO/MainProcess] mingle: searching for neighbors
[2019-06-16 18:36:47,777: INFO/Beat] Scheduler: Sending due task task_display_funny_time (task_display_funny_time)
[2019-06-16 18:36:47,794: INFO/Beat] Scheduler: Sending due task second_task (second_task)
[2019-06-16 18:36:48,798: INFO/MainProcess] mingle: all alone
[2019-06-16 18:36:48,813: INFO/MainProcess] [email protected] ready.
[2019-06-16 18:36:49,112: INFO/MainProcess] Received task: task_display_funny_time[ac4dea08-af2c-421c-b9cc-6601181af9fa]  
[2019-06-16 18:36:49,115: INFO/MainProcess] Received task: second_task[69df00d1-3711-423f-a07a-98ce0716cb86]  
[2019-06-16 18:36:49,116: WARNING/ForkPoolWorker-9] funny time is 2019-06-16 18:36:49.115487
[2019-06-16 18:36:49,117: INFO/ForkPoolWorker-9] task_display_funny_time[ac4dea08-af2c-421c-b9cc-6601181af9fa]: Hurray its working
[2019-06-16 18:36:49,118: INFO/ForkPoolWorker-9] Task task_display_funny_time[ac4dea08-af2c-421c-b9cc-6601181af9fa] succeeded in 0.00285962900000003s: None
[2019-06-16 18:36:49,118: WARNING/ForkPoolWorker-3] Second Task's time is = 2019-06-16 18:36:49.117875
[2019-06-16 18:36:49,119: INFO/ForkPoolWorker-3] second_task[69df00d1-3711-423f-a07a-98ce0716cb86]: Second Task
[2019-06-16 18:36:49,120: INFO/ForkPoolWorker-3] Task second_task[69df00d1-3711-423f-a07a-98ce0716cb86] succeeded in 0.0027296290000000667s: None
[2019-06-16 18:36:57,761: INFO/Beat] Scheduler: Sending due task task_display_funny_time (task_display_funny_time)
[2019-06-16 18:36:57,764: INFO/MainProcess] Received task: task_display_funny_time[604b5d3c-6c36-4674-924a-202527ce9c06] 

Then it seems working.

If want to know more then follow the Documentation of celery

http://docs.celeryproject.org/en/latest/index.html#contents

Thanks