Greengrass Nucleus Telemetry Data

Just created a very simple AWS integration that collect Greengrass Nucleus telemetry data as CloudWatch metrics.

AWS Infrastructure schema

This integration will deploy a Lambda function connect to IoT Core MQTT topic where NucleusEmitter component send telemetry data:

{
  "mqttTopic": "greengrass/MyDeviceName",
  "telemetryPublishIntervalMs": 300000
}

The deployed Lambda function put metrics data to CloudWatch using AWS NodeJS SDK:

cloudWatch.putMetricData({
  Namespace: METRIC_NAMESPACE,
  MetricData: [{
    MetricName: event.N,
    Unit: event.U,
    Timestamp: event.TS / 1000,
    Dimensions: [{
      Name: 'CoreDevice',
      Value: CORE_DEVICE
    }],
    Value: event.V
  }]
})

Once this integration is installed it will be possible to add metrics widgets into a dashboard and/or creating alarms in order to monitor Greengrass Core devices health.

Repository: daaru00/greengrass-nucleus-telemetry-data-collector

Credits: Cloudcraft.

Originally written on Dec 12, 2021.