{
  "container": {
    "type": "DOCKER",
    "docker": {
      "image": "libmesos/ubuntu"
    }    
  },
  "id": "ubuntu",
  "instances": 1,
  "cpus": 0.25,
  "mem": 256,
  "uris": [],
  "cmd": "while sleep 10; do date -u +%T; done"
}