App container is launched with wrong user ID

[sveetch]

Bug Report

Expected behavior/code
App container should be launched with user ID 1000 as configured with container FS permissions. This is required to create file like uploading image file in page contents.

Actual Behavior
Actually app container seems launched with user ID 10000 and so trying to upload a file lead to an error like [Errno 13] Permission denied: '/data/media/organizations/logo/6.jpg'.

Steps to Reproduce

1. Launch richie app container with make run;
2. Go to a page (logged as admin) where you can upload an image or any other file kind;
3. Upload a file;
4. You get a Permission denied error.

Environment

• Richie version: 0.1.0 (1696320)
• Platform: Ubuntu 18.04

Possible Solution
From @jmaupetit it seems related to our usage of docker-compose up -d in make run where we don't set an user.