Medium: Migrating off of Pivotal Cloud Foundry? Consider HashiCorp Nomad!

minecraft.nomad

job "minecraft" {
  datacenters = ["gcp-test"]
  priority    = 80

  group "mc-server" {
    network {
      port "access" { static = 25565 }
    }

    # reserved disk
    # https://developer.hashicorp.com/nomad/docs/job-specification/ephemeral_disk
    ephemeral_disk {
      migrate = true
      size    = 2000
      sticky  = true
    }

    task "minecraft" {
      driver = "java"

      config {
        jar_path    = "server.jar"
        jvm_options = ["-Xmx1152M", "-Xms1152M"]
        args        = ["EULA=true", "nogui"]
      }

      resources {
        cores  = 1
        memory = 1280
      }

      # you will need a file that says "eula=true" to accept in order for server to start
      # https://help.akliz.net/docs/agree-to-the-eula-on-a-minecraft-server
      artifact {
        source      = "https://storage.googleapis.com/public-file-server/minecraft-eula.txt"
        mode        = "file"
        destination = "eula.txt"
      }
      artifact {
        # https://mcversions.net/ to get server.jar download links
        # NOTE 1: if constantly preparing spawn area 0% then failing,
        #         it means it needs more memory allocation
        # NOTE 2: v1.17+ has a much higher memory requirement (3GB+)
        source = "https://launcher.mojang.com/v1/objects/1b557e7b033b583cd9f66746b7a9ab1ec1673ced/server.jar"
        mode        = "file"
        destination = "server.jar"
      }

      service {
        name     = "minecraft-server"
        provider = "nomad"
        port     = "access"
        tags     = ["v1.16.5"]
      }
    }
  }
}