{
  "rack": "rack1",
  "nodes": [
    {
      "node": "node1",
      "memory-mb" : 2048,
      "vcores" : 6
    },
    {
      "node": "node2"
    },
    {
      "node": "node3",
      "labels": "label1, label2(exclusive=false)"
    },
    {
      "node": "node4",
      "labels": "label1, label2(exclusive=false)",
      "memory-mb" : 6144,
      "vcores" : 12
    }
  ]
}