Unable to start container

[Wundark]

Unable to start docker container using the following docker-compose. I have checked file permissions and free RAM and they don't seem to show any issue.

version: "3"
services:
  valheim:
    image: mbround18/valheim:latest
    ports:
      - 2456:2456/udp
      - 2457:2457/udp
      - 2458:2458/udp
    environment:
      - PORT=2456
      - NAME="Server"
      - WORLD="Dedicated"
      - PASSWORD="password"
      - TZ=Etc/GMT
      - PUBLIC=1
      - AUTO_UPDATE=0
    volumes:
    - /mnt/user/appdata/docker/valheim/saves:/home/steam/.config/unity3d/IronGate/Valheim
    - /mnt/user/appdata/docker/valheim/server:/home/steam/valheim

When I run this, I get the following log ending with the container crashing.

[Valheim][root] : ###########################################################################
[Valheim][root] : Valheim Server - Tue 08 Mar 2022 08:22:04 PM GMT
[Valheim][root] : Initializing your container...
[Valheim][root] : You must be in development. Good luck!
[Valheim][root] : ###########################################################################
[Valheim][root] : Switching UID and GID
[Valheim][root] : usermod: no changes
[Valheim][root] : 
[Valheim][root] : Setting up file systems
[Valheim][root] : Navigating to steam home...
[Valheim][root] : Launching as steam...
[Valheim][steam]: ###########################################################################
[Valheim][steam]: Valheim Server - Tue 08 Mar 2022 08:22:04 PM GMT
[Valheim][steam]: STEAM_UID 1000 - STEAM_GUID 1000
[Valheim][steam]: Installing Valheim via odin 1.5.1...
[Valheim][steam]: ###########################################################################
[Valheim][steam]: Variables loaded.....
[Valheim][steam]: Port: 2456
[Valheim][steam]: Name: Gaming Group
[Valheim][steam]: World: Dedicated
[Valheim][steam]: Public: 1
[Valheim][steam]: Password: (REDACTED)
[Valheim][steam]: Running Install...
[Valheim][steam]: Attempting to update before launching the server!
[Valheim][steam]: Installing Updates...
[ODIN][INFO]  - Installing 896660 to /home/steam/valheim
[ODIN][INFO]  - steamcmd found in path
Redirecting stderr to '/home/steam/.steam/logs/stderr.txt'
/tmp/dumps is not owned by us - delete and recreate
Unable to delete /tmp/dumps. Continuing anyway.
Looks like steam didn't shutdown cleanly, scheduling immediate update check
[  0%] Checking for available updates...
[----] Verifying installation...
Steam Console Client (c) Valve Corporation - version 1646446107
-- type 'quit' to exit --
Loading Steam API...OK
Connecting anonymously to Steam Public...Connectivity test: result=Connected, in progress=0
OK
Waiting for client config...OK
/home/steam/.steam/steamcmd/steamcmd.sh: line 39:    58 Killed                  $DEBUGGER "$STEAMEXE" "$@"
Waiting for user info...[ODIN][ERROR] - Exited with http code: 137

[lyk4ndna]

Where is your docker-compose file located at? I think you need to create a new directory folder named Valheim and run the docker-compose file in there then have your volumes like this in the compose file:

volumes:

• ./valheim/saves:/home/steam/.config/unity3d/IronGate/Valheim
• ./valheim/server:/home/steam/valheim
• ./valheim/backups:/home/steam/backups

[spannerman79]

Where is your docker-compose file located at? I think you need to create a new directory folder named Valheim and run the docker-compose file in there then have your volumes like this in the compose file:

N/A

All that is needed to be added to te docker-compose.yml is the following;

container_name: valheim

Doesn't have to be named valheim but you get the general idea.

"Updated" docker-compose.yml

version: '3'
services:
  valheim:
    image: mbround18/valheim:latest
    container_name: valheim
    ports:
      - '2456:2456/udp'
      - '2457:2457/udp'
      - '2458:2458/udp'
    environment:
      - PORT=2456
      - NAME="Server"
      - WORLD="Dedicated"
      - PASSWORD="password"
      - TZ=Etc/GMT
      - PUBLIC=1
      - AUTO_UPDATE=0
    volumes:
      - '/mnt/user/appdata/docker/valheim/saves:/home/steam/.config/unity3d/IronGate/Valheim'
      - '/mnt/user/appdata/docker/valheim/server:/home/steam/valheim'

[spannerman79]

/tmp/dumps is not owned by us - delete and recreate
Unable to delete /tmp/dumps. Continuing anyway.

This error is usually because the UID/GID of the mount point is different from the user that is set within the docker container (in this case steam with uid/gid of 1000/1000)

Find the UID & GID of both locations defined in docker-compose.yml being;

• /mnt/user/appdata/docker/valheim/saves
• /mnt/user/appdata/docker/valheim/server

https://github.com/mbround18/valheim-docker#container-env-variables

Once you have both set them as env vars, replacing 1000 in the below docker-compose.yml using your OP as an example but updated;

version: "3"
services:
  valheim:
    image: mbround18/valheim:latest
    container_name: valheim
    ports:
      - 2456:2456/udp
      - 2457:2457/udp
      - 2458:2458/udp
    environment:
      - PORT=2456
      - NAME="Server"
      - WORLD="Dedicated"
      - PASSWORD="password"
      - TZ=Etc/GMT
      - PUBLIC=1
      - AUTO_UPDATE=0
      - PUID=1000
      - PGID=1000
    volumes:
    - /mnt/user/appdata/docker/valheim/saves:/home/steam/.config/unity3d/IronGate/Valheim
    - /mnt/user/appdata/docker/valheim/server:/home/steam/valheim

[Stupco]

@spannerman79
Noob question here, having this same issue.

Where do we find the UID and GID? Any step by step guide on this?

[mbround18]

@Stupco in the environment variable

• PUID=1000
• PGID=1000

these typically should be the same guid and uid of the user running the docker compose.

[Stupco]

Really falling down here, maybe because I'm using root to create the image? I know the guide says to not, but I tried creating a user and building it from that but it's still not working :/

Any chance you can give me the right docker command to create a user with the right permissions to create the container?

[mbround18]

Ooo @Stupco you probably dont want to run as root! SInce i am unsure on your system follow these guides:
https://linuxize.com/post/how-to-create-users-in-linux-using-the-useradd-command/
https://www.howtogeek.com/50787/add-a-user-to-a-group-or-second-group-on-linux/ - add to group docker