version: '3.4' services: vanilla: image: itzg/minecraft-server environment: EULA: "TRUE" forge: image: itzg/minecraft-server environment: EULA: "TRUE" TYPE: FORGE router: image: ${MC_ROUTER_IMAGE:-itzg/mc-router} depends_on: - forge - vanilla environment: # enable API API_BINDING: ":25564" ports: - 25565:25565 # bind the API port to only loopback to avoid external exposure - 127.0.0.1:25564:25564 command: --mapping=vanilla.example.com=vanilla:25565,forge.example.com=forge:25565