{
  "metrics": {
    "aggregation_dimensions": [
      ["InstanceId"],
      ["AutoScalingGroupName"]
    ],
    "append_dimensions": {
      "AutoScalingGroupName": "${aws:AutoScalingGroupName}",
      "InstanceId": "${aws:InstanceId}"
    },
    "metrics_collected": {
      "cpu": {
        "resources": ["*"],
        "measurement": [
          "cpu_usage_idle"
        ],
        "metrics_collection_interval": 60
      }
    }
  }
}