selfhosted-apps-docker/minecraft

Minecraft server in docker

guide-by-example

Purpose & Overview

Open world building and surviving game.

• Official site
• Github

Minecraft is written in Java.

Purpur version of the server is used in this setup along with few plugings, which allow to host multiple worlds on the same server.

Files and directory structure

/home/
└── ~/
    └── docker/
        └── minecraft/
            ├── minecraft-data/
            ├── .env
            └── docker-compose.yml

• minecraft-data/ - a directory where bookstack will store its web app data
• .env - a file containing environment variables for docker compose
• docker-compose.yml - a docker compose file, telling docker how to run the containers

You only need to provide the files.
The directory is created by docker compose on the first run.

docker-compose

docker-compose.yml

services:
  minecraft:
    image: itzg/minecraft-server
    container_name: minecraft
    hostname: minecraft
    restart: unless-stopped
    env_file: .env
    tty: true
    stdin_open: true
    ports:
      - 25565:25565
    volumes:
      - ./minecraft-data:/data

.env

# GENERAL
MY_DOMAIN=example.com
DOCKER_MY_NETWORK=caddy_net
TZ=Europe/Bratislava

# itzg specific
TYPE=PURPUR
EULA=TRUE
ONLINE_MODE=FALSE
SNOOPER_ENABLED=FALSE
SERVER_NAME=Blablabla
ALLOW_CHEATS=TRUE
MAX_MEMORY=3G
MAX_PLAYERS=50
ENABLE_COMMAND_BLOCK=TRUE
ALLOW_NETHER=TRUE
OVERRIDE_ICON=TRUE
ICON=https://i.imgur.com/cjwKzqi.png

Reverse proxy

No need.
There is no website managment. There is no accessing it through port 80 or 443.
Just clients connecting through port 25565 and that does not go through reverse proxy.
But you must forwarded 25565 on your firewall to your docker host.

Plugins

This setup is written in august 2022
1.19.2 is the latest build

• multiverse core
• multiverse portals
• multiverse inventory
• EssentialsX
• EssentialsX Spawn

Why the mods?
You want one server but you want people to be able to play creative or surival?
Well you need multiverse core.
How do the people move between these worlds?
Well you need multiverse portals to be able to create a lobby world.
Should they be able to bring stuff from one world to another? No?
Well you need multiverse inventory.
Should they spawn in lobby on connecting, but also remember the position in the worlds when entering portals?
Well you need the rest of that shit, EssentialsX and EssentialsX Spawn.

Plugins installation - place the downloaded jar files in to ~/docker/minecraft/minecraft-data/plugins
restart the server

check if the plugins are loaded using command plugins

How to setup the worlds

Update

Manual image update:

• docker-compose pull
  
• docker-compose up -d
  
• docker image prune

Backup and restore

Backup

Using borg that makes daily snapshot of the entire directory.

Restore

• down the minecraft container docker-compose down
  
• delete the entire minecraft directory
  
• from the backup copy back the minecraft directory
  
• start the containers docker-compose up -d