[Feature] Move from Redis to Valkey

[Morethanevil]

Since Redis changed license it would be awesome to use Valkey instead. It is fully compatible because it is a fork from the last really open source version of Redis 7.2.4

[gantoine]

I'm all for this, but since the license change doesn't affect us (yet), it's low priority at the moment. Anyone who wants to avoid redis can run their own valkey container and point romm to it with the env variables.

[Morethanevil]

As you said, anyone can run their own container, you don't even need to set other env. It is a dropin replacement. Only replace image: redis:alpine with image: valkey/valkey:alpine this is all it needs 😃

[adamantike]

We will wait for all the upstream Docker images we use to support Alpine 3.20, and then replace the bundled Redis installation with Valkey.

[adamantike]

Next version will run a bundled Valkey server, if running without an external Redis/Valkey provided by the REDIS_HOST environment variable!