swarm.json

{
  "app_name": "ppnet",
  "services": [
    {
      "service_name": "ppnet-service",
      "components": [
        {
          "component_name": "nodejs",
          "image": "registry.giantswarm.io/$username/ppnet",
          "ports": [80],
          "domains": {
            "ppnet.gigantic.io": 80
          }
        }
      ]
    }
  ]
}