Question 1

How do I use the generated Docker Compose file?

Accepted Answer

Run docker compose up -d in the folder containing your Compose file. Stop the server with docker compose stop. After editing your Compose file, run  again to apply the changes. A simple restart does not apply changes to the Compose file. To watch the server logs, use the command docker compose logs -f. Use docker compose down to remove the containers and network. Your world in the local ./data folder and named volumes are kept. Back up your world before deleting its data separately. Adding -v removes named volumes and can permanently delete their contents; it does not delete the local ./data folder.

Question 2

How do I execute commands in the server console?

Accepted Answer

Run docker compose exec mc rcon-cli COMMAND and replace COMMAND with your command. Example: docker compose exec mc rcon-cli say Hello World. If you want to use the server console directly, you can use the command docker compose exec -it mc rcon-cli.

Question 3

Are there any templates for the configuration?

Accepted Answer

Download a template from the GitHub repository and import it into the configurator.

Question 4

I get an error message about the “class file version”. What can I do?

Accepted Answer

If you get an error message about the “class file version” after starting the server, check our table to see which Java version corresponds to the respective class file version. Then adjust the Docker image tag in the configurator accordingly.

Question 5

How do I set up backups for my server?

Accepted Answer

The Backup Guide explains automatic backups to cloud storage, including Google Drive, OneDrive, and Dropbox.

Minecraft Docker Compose Generator

Further Information

Frequently Asked Questions

Start Minecraft with Docker: quick guide