Document advanced REDIS connection options

[clickersmudge]

Describe the Bug

Hi, I have a containerised Directus application that deploys to Fly.io. Fly.io has a connection to the Upstash Redis service.

My local instance configuration (working)

REDIS="redis://user:[email protected]:16379"

My configuration on Fly.io (not working)

redis://user:[email protected]:6379

While debugging, I found that for Redis to work you need to set the "family: 6" flag so that the connection is over IPv6. Redis only works on IPv6. https://community.fly.io/t/connect-to-redis-app-via-internal-network-failing/2776/15

However, I do not know how to set this in Directus. There seems to be no such flag in the ENV. https://docs.directus.io/self-hosted/config-options.html#redis

To Reproduce

Only Deploy on Fly.io.

Directus Version

10.9.3

Hosting Strategy

Self-Hosted (Custom)