Just finished setting up immich on my server. Using the prepared docker compose file. But I renamed the docker image of the database. It was called postgres. I renamed it to immich_postgres. After all, I want to know that this container belongs to immich.

Half an hour troubleshooting later, I figured out why I get a login failed error message. Login did not fail, connection did. Why? Because, they rely on the postgres name as an alias. They could have put an explicit alias for dns, they could have used the configuration name, after all they used it in the depends_on section. But they decided to refer to it via the automatically assigned name. Really? Container name? That one thing in the configuration that is supposed to be unique?

Did you really think that was the only postgres database on the server? Maybe I should centralize it into a single database, but I like when my applications can run without outside dependencies. Proper documentation would have been nice. I am sure they mention it somewhere.