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Lemmy on Docker - Postgre Authentication Fail (waveform.social)

submitted 1 year ago by [email protected] to c/selfhosted

24 comments fedilink hide all child comments

I'm trying to get Lemmy up and running on an Ubuntu 22.04 host. I've followed this guide supplemented by googling.

I can actually get to the front end, but it gives me "There was an error on the server." When I dig into the logs, I see this:

"thread 'main' panicked at 'Error connecting to postgres://lemmy:<my pg password>@postgres:5432/lemmy: FATAL:  password authentication failed for user \"lemmy\"\n","stream":"stderr","time":"2023-06-26T03:14:17.47460915Z"}

The only thing I can find about this error related to Lemmy is this thread, which indicates that the password was not defined in the docker-compose.yml file prior to starting the containers. I have since redone the configuration three times, each time deleting the volumes folder and double-checking that my postgre password is correct both in docker-compose.yml and lemmy.hjson.

Any ideas what might be the problem? Thank you kindly for any help you can provide!

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[–] [email protected] 2 points 1 year ago (2 children)

Do you get the same error by running psql on terminal?

[–] [email protected] 2 points 1 year ago

I don't know how to do this yet, but this will be the first thing I try this morning.

[–] [email protected] 2 points 1 year ago* (last edited 1 year ago) (1 children)

Frustratingly, when you use psql on the terminal, it does not prompt you for a password. So I'm still not sure if the password works or not :(

Ahh, ok... if you add the -W option when logging in to psql (psql -U lemmy -W), it will prompt for the password.

The password works! So, apparently it's something with the connection string.

[–] [email protected] 1 points 1 year ago

Turns out, unless you update pg_hba.conf to force password use, using the -W option prompts for a password, but authenticates with any value entered.