Description

Currently if a Symfony Application is deployed and the Application wants to use Redis or something else for caches a Developer is required to change the Application config, so a Redis can be configured.

Required Adjustments:

framework:
    cache:
-       #app: cache.adapter.redis
-       #default_redis_provider: redis://localhost
+       app: cache.adapter.redis
+       default_redis_provider: redis://localhost

Example

It would be nice if we would handle the caches similar how we handle DATABASE_URL and DEFAULT_URI.

APP_CACHE_DSN=redis://localhost

framework:
    cache:
+       app: '%env(APP_CACHE_DSN)%'

Alternative with maybe deprecated the old way with the default_provider_...:

framework:
    cache:
+       app_uri: '%env(APP_CACHE_DSN)%'

This would I think make things easier for company which have own Operation Teams. Or for platforms like Symfony Cloud, Platform.sh, Upsun — which could automatically define the APP_CACHE_DSN in a multi node setup to a Redis or something like that.