Docker - No more webui

[Mario-o-o-o]

Hi
Tribler container is up and running but Apache proxy response is 503 with failed to make connection to backend.

Docker compose
image: ghcr.io/tribler/tribler:latest

Image modification
2025-02-18

Error log

WARNING:TriblerTunnelCommunity:Could not retrieve backup exitnode cache, file does not exist!
WARNING:TorrentChecker:No tracker to select from to check torrent health, skip
ERROR:tribler.core.session:Uncaught exception: Traceback (most recent call last):
  File "/opt/hostedtoolcache/Python/3.10.15/x64/lib/python3.10/site-packages/cx_Freeze/initscripts/__startup__.py", line 140, in run
  File "/opt/hostedtoolcache/Python/3.10.15/x64/lib/python3.10/site-packages/cx_Freeze/initscripts/console.py", line 25, in run
  File "src/tribler/run.py", line 254, in <module>
  File "/opt/hostedtoolcache/Python/3.10.15/x64/lib/python3.10/asyncio/runners.py", line 44, in run
  File "/opt/hostedtoolcache/Python/3.10.15/x64/lib/python3.10/asyncio/base_events.py", line 649, in run_until_complete
  File "src/tribler/run.py", line 242, in main
  File "src/tribler/run.py", line 192, in spawn_tray_icon
  File "/opt/hostedtoolcache/Python/3.10.15/x64/lib/python3.10/site-packages/pystray/__init__.py", line 64, in <module>
  File "/opt/hostedtoolcache/Python/3.10.15/x64/lib/python3.10/site-packages/pystray/__init__.py", line 56, in backend
  File "/opt/hostedtoolcache/Python/3.10.15/x64/lib/python3.10/site-packages/pystray/__init__.py", line 36, in xorg
  File "/opt/hostedtoolcache/Python/3.10.15/x64/lib/python3.10/site-packages/pystray/_xorg.py", line 36, in <module>
  File "/opt/hostedtoolcache/Python/3.10.15/x64/lib/python3.10/site-packages/Xlib/display.py", line 89, in __init__
  File "/opt/hostedtoolcache/Python/3.10.15/x64/lib/python3.10/site-packages/Xlib/display.py", line 71, in __init__
  File "/opt/hostedtoolcache/Python/3.10.15/x64/lib/python3.10/site-packages/Xlib/protocol/display.py", line 84, in __init__
  File "/opt/hostedtoolcache/Python/3.10.15/x64/lib/python3.10/site-packages/Xlib/support/connect.py", line 73, in get_display
  File "/opt/hostedtoolcache/Python/3.10.15/x64/lib/python3.10/site-packages/Xlib/support/unix_connect.py", line 59, in get_display
Xlib.error.DisplayNameError: Bad display name ""
NoneType: None
FATAL: exception not rethrown

If you need anything else, please let me know.

Thank you for your help

[qstokkink]

Could you specify how you run the image?

For reference, it should be like this: https://tribler.readthedocs.io/en/latest/basics/docker.html#running

[Mario-o-o-o]

Thanx @qstokkink :-)

I've been using the following docker compose since version 8 (and everything worked perfectly):

services:
  tribler:
    image: ghcr.io/tribler/tribler:latest
    container_name: tribler
    hostname: tribler
    user: $UID:$GID
    volumes:
      - $MYPATH/.tribler:/home/user/.Tribler:rw
      - $MYPATH/download:/home/user/Downloads/:rw
    ports:
      - "127.0.0.1:8085:8085" # http
      - "6881-6889:6881-6889" # bittorrent
      - "8090-8091:8090-8091" # ipv8
    environment:
      CORE_API_PORT: 8085
      CORE_API_KEY: $MYSECRET
    restart: unless-stopped
    networks:
      - tribler
networks:
  tribler:
    external: true

From memory I had to adapt volume mount-paths between the official documentation and what I found in the container.

The current documentation has obviously been modified and seems to me to be incomplete:

docker run -e CORE_API_PORT=8085 -e CORE_API_KEY="changeme" \
           -v ~/.Tribler:/state -v ~/downloads/TriblerDownloads:/downloads \
           -v $XDG_CACHE_HOME/tmp/:$XDG_CACHE_HOME/tmp/ -v /run:/run \
           --security-opt "apparmor:unconfined" \
           --net="host" \
           -e XDG_RUNTIME_DIR=$XDG_RUNTIME_DIR -e DISPLAY=$DISPLAY \
           -e XDG_CACHE_HOME=$XDG_CACHE_HOME -e XAUTHORITY=$XAUTHORITY \
           -e DBUS_SESSION_BUS_ADDRESS="$DBUS_SESSION_BUS_ADDRESS" \
           --user $(id -u):$(id -g) -e BROWSER="x-www-browser" \
           -it ghcr.io/tribler/tribler:latest

Is it just me, or will this setting not work?

I'll use on my side ...

    volumes:
      - $MYPATH/.tribler:/state:rw
      - $MYPATH/download:/downloads:rw
      #- $MYPATH/tmp:/home/user/tmp:rw
      - /run:/run:rw
    environment:
      CORE_API_PORT: 8085
      CORE_API_KEY: $MYSECRET
      BROWSER: x-www-browser

But I have no idea what the following variables are for or how to configure them:

• XDG_RUNTIME_DIR
• DISPLAY
• XDG_CACHE_HOME
• XAUTHORITY
• DBUS_SESSION_BUS_ADDRESS

As my Tribler container is currently restarting non-stop, I can't connect to it and check the various paths.

I admit I'm a bit lost here.

Thank you in advance for your help.

[Mario-o-o-o]

Debian 12.9

For the system user associated with the docker container, each of the theoretical environment variables is empty ...

MYUSER@MYSRV:~$ echo "${DISPLAY}"

MYUSER@MYSRV:~$ echo "${XDG_RUNTIME_DIR}"

MYUSER@MYSRV:~$ echo "${XDG_CACHE_HOME}"

MYUSER@MYSRV:~$ echo "${XAUTHORITY}"

MYUSER@MYSRV:~$ echo "${DBUS_SESSION_BUS_ADDRESS}"

[qstokkink]

Oh, right, I forgot Debian >=10 removed Xorg in favor of Wayland. I always test on Ubuntu, which gives me x11/Xorg out-of-the-box.

The quick workaround is to install the Xorg backend, see https://wiki.debian.org/Xorg, which should be a matter of:

sudo apt install xorg

(on the off-chance you're running on Windows, the WSL should also provide x11 support)