Docker + Laravel + Redis: Caching + Queue issues

We do have an application running on a Server with a setup of Docker + Laravel + Redis + other services.

** QUEUE_CONNECTION + CACHE_DRIVER are set to redis**

ISSUE: Laravel application can not set/get Cache items and cannot push to the Queue Everything was running fine until two days ago. Somehow the network was missing and after I recreated it, caching + pushing jobs from the laravel container to the queue was not working anymore.

Here a bit about the setup: crew_app => runs our custom laravel image supervisor => runs workers of Horizon scheduler redis

Operations that do or do not work: WORKS: scheduler can push jobs to the queue WORKS: queue processes jobs WORKS: crew_app is connected to redis (tested by pinging from crew_app to redis and vice versa) DOES NOT WORK: crew_app cannot create Cache items (tested with tinker: created Cache item, return NULL when trying to get item again) DOES NOT WORK: crew_app cannot push jobs

What I did so far:

• checked logs => no errors
• restarted & recreated containers
• pulled latest redis image
• completely removed redis container + volume and recreated
• checked configs + setup
• checked network + volumes
• tinker: could not get a set cache item again
• pushing jobs from crew_app => not received in horizon

I really want to avoid having to setup the whole system newly. I can paste docker-compose and other configs if needed. But I am pretty sure that there is no issue there as everything was already working seemlessly.

Hope someone of you guys can help me!