This docker container provides the new (as of Dec 2022) dedicated server for ETS2/ATS in a simple and complete package.
Easy to configure and use!

• Running
  • ETS2
  • ATS
• Environment Variables
• Custom Mods
• Increase Max Player Limit above 8 Players
  • Joining The Modified Server
• Troubleshooting
  • Login Error 15
  • Login Error 106
  • Can't write config file server_config.sii

docker run -d \
--name "ets2-server" \
--network host \
--restart unless-stopped \
-e "ETS_SERVER_NAME=My Server" \
lshallo/ets2-convoy-server

This minimal example will start the server with default settings and a custom name defined.

To use your own config see Mods

docker run -d \
--name "ats-server" \
--network host \
--restart unless-stopped \
-e "ETS_SERVER_NAME=My Server" \
lshallo/ats-convoy-server

This minimal example will start the server with default settings and a custom name defined.

To use your own config see Mods

See docker-compose.yml.

Then use docker compose up -d to start the server.
You can check the logs with docker compose logs -f.

Update the server with docker compose pull && docker compose up -d. Stop the server with docker compose stop and remove it with docker compose down.

As you can probably tell, there are some question marks in the descriptions. I'm not sure what the parameters are doing. If you have any clue, please open an issue or pull request.

To enable your installed mods you need to generate custom server_packages.dat and server_packages.sii files.

1. Locate your ETS2 savegames folder

   • Windows: %USERPROFILE%\Documents\Euro Truck Simulator 2
   • Mac:
     • No Steam Cloud: ~/Library/Application Support/Euro Truck Simulator 2/profiles/<Your Profile>/save
     • Steam Cloud: ~/Library/Application Support/Steam/userdata/<Your ID>/304730/remote/profiles/<Your Profile>/save
   • Linux: You know best ;)

2. Open config.cfg in your favourite editor (Notepad++, Emacs, Vim, ...)

   • Search for uset g_console "0" and replace it with uset g_console "1"
   • Search for uset g_developer "0" and replace it with uset g_developer "1"
   • Save the file

3. Start the game and load your desired save. The state (where your truck is) of the save is not important. We will only export mods.

   • Open the console by pressing the ~ key (left of 1 in the number row). It will vary depending on your keyboard layout.
   • Type export_server_packages in the console at the bottom of the screen and press enter.

4. Go to your savegames folder again.

   • You should see 2 new files: server_packages.dat and server_packages.sii
   • Copy the files to your ets2 server data directory (replacing the existing ones)
     • You need to mount /home/steam/.local/share/Euro Truck Simulator 2 to a local directory using your docker run config.
     • Place the files in the mounted directory. E.g.: /opt/ets2
   • Restart your server

1. Set the desired player count using ETS_SERVER_MAX_PLAYERS
2. Start the container
3. Wait for the game to download and the server to start
4. Restart the container
5. You should see the server reporting:

*** WARNING *** : [cvar] Can not create file '</home/steam/.local/share/Euro Truck Simulator 2 | /home>/config_ds.cfg'.
*** ERROR *** : [fs] Failed to open file '/home/config_ds.cfg' in the create_truncate mode.
[...]
*** WARNING *** : [MP] Warning: Proper player limit exceeded.
[...]
[MP] Maximum number of players: 32

Then the workaround is working.

To join your modified server you'll need to set the same property also in your game. First you need to enable developer mode: https://forum.scssoft.com/viewtopic.php?t=61852

Then in game press this key on your keyboard to open the console:

Enter g_max_convoy_size 128 and press enter. This setting is saved across reboots. However it might not survive updates and you might have to issue the command again.

Due to the hacky nature of the workaround I cannot provide any support. Please don't create issues about it unless it prevents the server from starting at all.

Login error 15 indicates that the token is for the wrong game. Please check that you have not used your ETS token for ATS or similar.

See ETS_SERVER_README.md to genrate a new token.

Login error 106 indicates that your logon token is invalid.
The token will lose validity after some time and you will need to generate a new one.
To check if the token is still valid log into steam in a browser and go to https://steamcommunity.com/dev/managegameservers.
If the token has strike through it is no longer valid.

See ETS_SERVER_README.md to genrate a new token.

Make sure the mounted folder owner is user id 1000. chown -R 1000:1000 /opt/ets2 (or whereever you have mounted it)