{
  "rack": "rack1",
  "nodes": [
    {
      "node": "node1",
      "memory-mb" : 2048,
      "vcores" : 6
    },
    {
      "node": "node2"
    },
    {
      "node": "node3"
    },
    {
      "node": "node4"
    }
  ]
}