Move periodic tasks away from cron jobs

[Krishna-Sivakumar]

Using celery sounds like a better option here.

https://docs.celeryproject.org/en/stable/

[kinshukdua]

PR #16 introduced the scheduler library as an alternative to cronjob for docker, although if celery is async, that would be a better solution.
Also I am not sure if using an external server like nginx or Apache is better vs using a small flask server and asynchronously updating the map with celery.

[Krishna-Sivakumar]

Celery is asynchronous by nature

[Krishna-Sivakumar]

Moving to a dynamic backend should be it's own issue

[kinshukdua]

I think celery would be a better solution than scheduler library. It also saves CPU cycle on the backend, which would be better used for catering to more concurrent users.