# Source: https://github.com/itzg/mc-router/blob/main/examples/docker-autoscale/compose.yml
# This is a verbose example with comments and explanations for configuring auto-scaling behavior
# for Docker backend servers. See compose-minimal.yml for a simple minimal example.
services:
  router:
    image: itzg/mc-router
    environment:
      IN_DOCKER: true
      # Global auto-scaling settings for all docker-backend servers
      # Settings can be overridden per-backend using labels
      # as shown in the backend services below (except for AUTO_SCALE_DOWN_AFTER which is global only)
      # Enable auto-scaling down after inactivity for all backends by default
      AUTO_SCALE_DOWN: true
      # Enable auto-scaling up after player join for all backends by default
      AUTO_SCALE_UP: true
      # Time of inactivity after which to scale down (default: 10m) - Global only setting
      AUTO_SCALE_DOWN_AFTER: 2h
      # MOTD to show when server is asleep (default: empty string - don't show MOTD, show server offline instead)
      AUTO_SCALE_ASLEEP_MOTD: "Server is asleep. Join again to wake it up!"
    ports:
      - "25565:25565"
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock:ro
  vanilla:
    image: itzg/minecraft-server
    environment:
      EULA: "TRUE"
    labels:
      # If global auto scaling settings are enabled, this backend will
      # auto-scale without any additional auto-scale related configuration
      mc-router.host: "vanilla.example.com"
  fabric:
    image: itzg/minecraft-server
    environment:
      EULA: "TRUE"
      TYPE: FABRIC
    labels:
      mc-router.host: "fabric.example.com"
      # Disable auto-scaling for this backend specifically
      mc-router.auto-scale-up: false
      mc-router.auto-scale-down: false
  paper:
    image: itzg/minecraft-server
    environment:
      EULA: "TRUE"
      TYPE: PAPER
    labels:
      mc-router.host: "paper.example.com"
      # Override asleep MOTD for this backend
      mc-router.auto-scale-asleep-motd: "Paper is folded. Join to unfold!"