app.json

{
      "id": "${app-name}",
          "container": {
                "type": "DOCKER",
                "docker": {
                  "image": "${docker_image}",
                  "privileged": true,
                  "network": "BRIDGE",
                  "portMappings": [
                                        {
                                                "containerPort": 5000,
                                                "hostPort": 0,
                                                "protocol": "tcp",
												"servicePort": 0
                                        }
                                ]
                }
          },
          "instances": 1,
          "cpus": 1,
          "public_ip":true,
          "mem": 512,
		  "labels": {
			"HAPROXY_0_VHOST": "${dc-os-public-url}",
			"HAPROXY_GROUP": "external"
			}
}