PermissionError when deploying HPX

[Olmarq]

I'm probably experiencing the same issue as in #218

TERM environment variable not set.  
[8] Failed to execute script run
Traceback (most recent call last):
  File "run.py", line 7, in <module>
  File "<frozen importlib._bootstrap>", line 983, in _find_and_load
  File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
  File "/home/travis/virtualenv/python3.7.9/lib/python3.7/site-packages/PyInstaller/loader/pyimod03_importers.py", line 493, in exec_module
  File "happypanda/main.py", line 25, in <module>
  File "<frozen importlib._bootstrap>", line 983, in _find_and_load
  File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
  File "/home/travis/virtualenv/python3.7.9/lib/python3.7/site-packages/PyInstaller/loader/pyimod03_importers.py", line 493, in exec_module
  File "happypanda/common/clsutils.py", line 704, in <module>
  File "happypanda/common/clsutils.py", line 697, in setup_internal_db
  File "happypanda/common/clsutils.py", line 629, in __init__
  File "os.py", line 223, in makedirs
PermissionError: [Errno 13] Permission denied: '/data/data'

And this is my docker-compose.yaml

version: '3'

services:
  happypandax:
    image: twiddly/happypandax:latest
    # start this container automatically on boot
    restart: unless-stopped
    ports:
      - "7006:7006"
      - "7007:7007"
      - "7008:7008"
    volumes:
      - /srv/dev-disk-by-uuid-3bbf2658-8f62-48c2-a06a-a4398ef59eb1/docker/happypandax:/data
      - /srv/dev-disk-by-uuid-3bbf2658-8f62-48c2-a06a-a4398ef59eb1/Research/Gallery:/content
    links:
      - db

  db:
    image: postgres:latest
    restart: unless-stopped
    ports:
      - 7005:5432
    environment:
      POSTGRES_USER: 'happypandax'
      POSTGRES_PASSWORD: 'postgres'
    volumes:
      - database:/var/lib/postgresql/data
    logging:
      driver: none

volumes:
  database:
    driver: local

I'm running openmedavault and using portainer to deploy HPX. The folder dev-disk-by-uuid-3bbf2658-8f62-48c2-a06aa4398ef59eb1 is a shared folder on a raid I created in the omv webgui.
In #218 it is mentioned to create the happypandax user outside the docker, so I performed

$ sudo adduser --group --system happypandax
Adding system user `happypandax' (UID 113) ...
Adding new group `happypandax' (GID 118) ...
Adding new user `happypandax' (UID 113) with group `happypandax' ...
Creating home directory `/home/happypandax' ...
$  $ id happypandax
uid=113(happypandax) gid=118(happypandax) groups=118(happypandax)

I gave the new user and group r/w access to the shared folder through ACL.
In a ssh session I sued to the happypandax user to verify that it can r/w it, but the error persists.

Edit:
Ok so after reading a bit about docker I understand that it does not care for names, only for gids and uids so the newly created user obviously does nothing.
I would need to give the user/group with id 101 permissions, but that's not really a solution. Currently systemd stuff is using these ids and I really don't feel comfortable changing those around.
And even if I would reassign the id to the happypandax user, I would have the same problem all over again if I want to deploy another image that creates a new user that needs access to some other volume.

[twiddli]

refer to #243