{
  "AWS/EC2Spot": {
    "dimensions": [
	{
		"key" : "FleetRequestId"
	},
	{
		"key" : "AvailabilityZone"
	},
	{
		"key" : "InstanceType"
	}
    ],
    "metrics": [
      {
       "id": 1,
        "metric_name": "PercentCapacityAllocation"
      },
	  {
       "id": 2,
        "metric_name": "FulfilledCapacity"
      },
	  {
        "id": 3,
        "metric_name": "TerminatingCapacity"
      }
    ]
  }
}