Re: Periodic Execution of django functions or tasks

If celery is too much, consider django-background-tasks.

To be totally honest, I am an old dog, and I generally do the following:

* Write a management command.

* Deploy a crontab to run my management command.

This is not so container or cloud friendly, but none of my cloud deployments run "long" tasks.  So, I've been able to translate this old pattern like this:

* Have a Lambda hit a web URL which runs the management command through django.core.management.call_command (for brief commands)

* Deploy to Lambda using Zappa and have a scheduled event in CloudWatch events run the command.

I think doing this same pattern with AWS Batch would work for longer commands - and only AWS is relevant to me.

Anyway, django-background-tasks or a simple management command are both less to deploy than celery.

On Tuesday, October 20, 2020 at 10:34:44 AM UTC-4 Derek wrote:

Ryan's suggestion is a very good one. 

If you don't need Django-specific commands, you can even write a stand-alone Python script which accesses your database to do the work. An alternative to cron that we use, on occasion, is https://pypi.org/project/APScheduler/ which runs in a container (a Python scheduler like this is also useful if you want to run on a non-Unix operating system). 

On Tuesday, 20 October 2020 at 01:53:50 UTC+2 Ryan Nowakowski wrote:

On Mon, Oct 19, 2020 at 04:53:35PM +0300, MUGOYA DIHFAHSIH wrote:
> Hello fellow django developers, i am working on a web app in which reports
> are archived in the database at the end of every month automatically, i
> have searched on internet and many folks are suggesting celery which i have
> tried but not fruitful, is there any other library i use to accomplish this.
>

Yeah, celery is great! But sometimes it's too complex a beast for
simple things. Usually I write a custom Django management command[1].
In your case it would probably be named something like archivereports.
Then add a cron entry to run it at the end of every month.

[1] https://docs.djangoproject.com/en/2.2/howto/custom-management-commands/
[2] https://help.ubuntu.com/community/CronHowto

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