Docker stack doesn't work but standalone container does

[milkyware]

Hi,

I currently have a docker swarm cluster of 3 Raspberry Pi 4s. I've put together the below compose to try and get the server running, however, when the server is initialising it just seems to stop after Preparing level "world" and then fail with ERROR mc-server-runner Failed to stop using rcon-cli. I also include the logs for both the working standalone container and the failing stack task for comparison.

version: '3.8'

networks:
default:

services:
server:
image: itzg/minecraft-server:latest
environment:
- TZ-Europe/London
- EULA=true
- DEBUG=true
- DEBUG_EXEC=true
- MEMORY=2G
networks:
- default
ports:
- 25565:25565
deploy:
mode: replicated
replicas: 1
resources:
limits:
cpus: "2.0"
memory: 2G

The main difference I notice is that in the standalone container after Preparing level "world" it then continues onto Preparing start region for dimension minecraft:overworld which doesn't seem to happen in the stack.

Any help or suggestions would be great. Thank you in advance

StandaloneLogs.txt
SwarmLogs.txt

[itzg]

1.18 is taking even longer to startup than the previous versions, so I'm thinking you will need to configure a longer health check duration. You could set that a lot longer for the initial world creation and then lower it later a bit.

[milkyware]

Tried with the healthcheck turned off and it works a treat, thanks. I'll tweak my compose script with a lengthened healthcheck and post it here

[milkyware]

My new working compose is below. Thanks again for the help @itzg

version: '3.8'

networks:
default:

volumes:
backups:
data:

services:
server:
image: itzg/minecraft-server:latest
environment:
- TZ-Europe/London
- EULA=true
- ALLOW_NETHER=true
- ANNOUNCE_PLAYER_ACHIEVEMENTS=true
- GENERATE_STRUCTURES=true
- MEMORY=2G
- SERVER_NAME=Minecraft
- SPAWN_ANIMALS=true
- SPAWN_MONSTERS=true
- SPAWN_NPCS=true
- TYPE=FORGE
healthcheck:
start_period: 10m
networks:
- default
ports:
- 25565:25565
volumes:
- data:/data
deploy:
mode: replicated
replicas: 1
resources:
limits:
cpus: "2.0"
memory: 2G

[tehmessiah75]

Can you share your start up script for the Docker Swarm version please?
Edit: I just want to run a vanilla (not forge) server on a docker swarm cluster

[milkyware]

i'm assuming by startup script you mean compose file? I think it's the same just minus the - TYPE=FORGE environment variable

[itzg]

@tehmessiah75 the question has already been answered.

If you're experiencing what you think is a similar problem then please open a new discussion with logs and your container configuration.