marathon app config for gpu task

app.json

{
    "id": "/test",
    "cmd": null,
    "cpus": 0.2,
    "mem": 128,
    "disk": 0,
    "instances": 1,
    "constraints": [["gpus", "LIKE", "enabled"]],
    "container": {
      "type": "MESOS",
      "docker": {
        "image": "nginx:1.11.4-alpine",
        "network": "HOST",
        "privileged": false,
        "parameters": [],
        "forcePullImage": false
      }
    }
}