[Bug] Docker missing mount warning doesn't respect *_DIR Environment Variables

[pbronez]

Gokapi Version

v2.2.4

Operating System / Deployment

Docker (Official Image)

Storage Backend

S3 Compatible (AWS, Minio, etc.)

Database

SQLite

Steps to Reproduce

1. Set *_DIR environment variables to non-standard locations

1.1 set GOKAPI_CONFIG_DIR to /mnt_vol/config

1.2 set and GOKAPI_DATA_DIR to /mnt_vol/data

2. Mount a volume to /mnt_vol

3. Start GokAPI image for the first time

3.1. Open /setup
3.2 get redirected to /setup/start

4. See error messages:

 Warning: It appears that your /app/data directory has not been mounted as a volume. This will result in complete data loss once you update or rebuild this container!

Warning: It appears that your /app/config directory has not been mounted as a volume. This will result in complete data loss once you update or rebuild this container! 

Additional Context

Warnings are correct that /app/data and /app/config are not mounted. However there ARE mounted config and app directories, specified by the environment variables, so the application is thowing a big warning when everything is fine.

I'm deploying gokapi on Railway. I can only attach one volume per service (container) so I need to get /config and /data into the same mount.

I can't just mount app/ because gokapi looks for a few baked-in files that live at that level. Mounting an empty volume prevents the service from running.

Relevant Logs

2026-04-03T02:56:41.866718297Z [inf]  
2026-04-03T02:56:41.866726795Z [inf]  ██████   ██████   ██   ██  █████  ██████  ██ 
2026-04-03T02:56:41.866734055Z [inf]  ██       ██    ██ ██  ██  ██   ██ ██   ██ ██ 
2026-04-03T02:56:41.866742310Z [inf]  ██   ███ ██    ██ █████   ███████ ██████  ██ 
2026-04-03T02:56:41.866749147Z [inf]  ██    ██ ██    ██ ██  ██  ██   ██ ██      ██ 
2026-04-03T02:56:41.866756245Z [inf]   ██████   ██████  ██   ██ ██   ██ ██      ██ 
2026-04-03T02:56:41.866763615Z [inf]                                               
2026-04-03T02:56:41.866770277Z [inf]  Gokapi v2.2.4 starting
2026-04-03T02:56:41.866777549Z [inf]  Please open http://127.0.0.1:53842/setup to setup Gokapi.
2026-04-03T02:56:42.126614518Z [inf]  Starting Container

Before submitting

• I have removed sensitive information (API keys, passwords) from my logs.