I’m having issues with creating a backup from the admin section, running discourse from the docker container on localhost. The error I’m getting is: pg_dump: error: connection to database "discourse development" failed: FATAL: Peer authentication failed for user "postgres". I checked the pg_hba.conf file, and have all options set to trust. Would be great if I could get some assistance on how to get this to work. I tried on Ubuntu as well as on MacOSX. Everything else from the discourse instance is working fine on both (creating Posts, API…) except for the backup functionality.

That could be a regression. It should be using user discourse, I’d think.

Where could I change the user being used by discourse?

Following this tutorial: [תמונה] Install Discourse for development using Docker Developer Guides Developing using Docker Since Discourse runs in Docker, you should be able to run Discourse directly from your source directory using a Discourse development container. white_check_mark Pros: No need to install any system dependencies, no configuration needed at all for setting up a development environment quickly. x Cons: Will be slightly slower than the native dev environment on Ubuntu, and much slower than a native install on MacOS. See also Developing Discourse using a Dev Container … As I said, everything works fine, except for the backup.

Hi Max! Were you able to fix this issue? I’m currently having the exact same problem, although I first detected it trying to make a restore on my local docker development install.

Hi @max-elia I’ve also run into this problem, were you able to get it fixed by any chance?

where in the file did you add it and what else did you do?? Adding it to the development section and simply restarting (d/shutdown_dev; d/boot_dev) didn’t do it for me.

Right under adapter: postgresql in the config/database.yml Then I followed the script/discourse restore Which was what I was trying to accomplish.

גיבוי נכשל ב-localhost עם docker

מפתח

natasha_selvidge (Natasha) 9 באוקטובר,‏ 2021,‏ 7:04pm 8

I fixed it by adding username: discourse directly into my database.yml. Thank you!

נושא		תגובות	צפיות
Backup restore failing on clean dev docker env: FATAL: Peer authentication failed for user “postgres” Bug pr-welcome , dev-install	14	5017	6 בינואר,‏ 2026
Backup failed with postgresql connection error Development	0	841	31 ביולי,‏ 2017
Cannot backup (connect to postgres) in docker_dev Bug	8	982	25 בפברואר,‏ 2018
Discourse restore with pg_dump Self-hosting	2	1092	22 באוקטובר,‏ 2018
Documentation request: Overview about database access and configuration in a development environment. Site feedback	1	866	20 במרץ,‏ 2023

גיבוי נכשל ב-localhost עם docker

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