Hey everyone, I've got a couple of issues with my Minecraft server set up in Docker on a Raspberry Pi 4 (8GB) running POE. First off, when I was just running the server directly, it was completely silent. However, now that I have it in a Docker container, my CPU fan kicks into high gear, spinning at max RPM for about 15–30 seconds every 15 minutes, even when no one is connected. I'm not seeing any overheating, so I'm wondering what might be going on. Secondly, I need some help with backing up my Minecraft world. How can I copy the 'Minecraft world' directory from the Docker container to the Raspberry Pi for safekeeping?
3 Answers
For your first issue, it could be something related to Docker, but it's not entirely clear what's causing the fan activity. It might be worth checking if any background processes are running in the container. Regarding your second question, you might want to look into using a simple bind mount instead of a volume. That way, the Minecraft directory can be a regular folder on your Pi's file system, making it easier to back up manually or automate with a script.
Sounds like your Docker setup is causing the CPU to work harder than it did before, which is why the fan goes nuts. For backing up your world, you can set up a bind mount for your container; it'll make the Minecraft world folder accessible directly on your Pi. Plus, you could create a script that automatically copies the directory to an external drive on a schedule if you want.
If you're looking for specific help, you might want to check out a subreddit focused on admin stuff for Minecraft servers. They might have more tailored advice on running Docker with it.
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