Where to set the username and password in Docker compose?

[oss-linux-etc]

The compose complains if I change the user from "redis" and does not allow a password.

My redis needs a login with username (not "redis") and a text password. How is this done using Docker compose?

[oss-linux-etc]

Nothing works, even setting no password on redis startup

[sws123asd]

How to add a password for Redis in Docker Compose?