version: '3.4'

services:
  vanilla:
    image: itzg/minecraft-server
    environment:
      EULA: "TRUE"
  forge:
    image: itzg/minecraft-server
    environment:
      EULA: "TRUE"
      TYPE: FORGE
  router:
    image: itzg/mc-router
    ports:
      - 25565:25565
    command: --mapping=vanilla.example.com=vanilla:25565,forge.example.com=forge:25565