Prometheus in Kubernetes

Prometheus is an open-source monitoring toolkit for collecting and alerting on infrastructure and platform metrics. These metrics are exposed by Prometheus in OpenMetrics format. Prometheus exporters provide a standardized monitoring interface for numerous technologies and services. By adding Dynatrace support to metrics collected from Prometheus exporters, you get intelligent observability and automatic root cause analysis for technologies such as Redis, Kafka, and MongoDB. As well 100+ integrations maintained by the Prometheus community.

This is intended for users who want to:

• Leverage existing Prometheus integrations to extend Dynatrace’s monitoring capabilities.

This enables you to:

• Analyze Kubernetes infrastructure and platform metrics in Dynatrace.
• Analyze metrics from any technology running in Kubernetes pods in Dynatrace.
• Proactively alert on anomalies of Prometheus metrics with Davis AI.

Compatibility Requirements:

• In the Dynatrace menu, go to Settings > Cloud and virtualization > Kubernetes and turn on Enable monitoring and Monitor Prometheus exporters.
• ActiveGate version 1.215+ or Dynatrace Operator running on Dynatrace version 1.215

For more details, please refer to the documentation: Monitor Prometheus metrics

Additional resources:

• Dynatrace blog post: Simplify observability for all your custom metrics – Part 4
• Performance clinic: k8s monitoring at Scale with Prometheus and Dynatrace and Kubernetes Observability for SREs with Dynatrace

Dynatrace integrates Gauge and Counter metrics from Prometheus exporters in Kubernetes environments.

Step-by-step instructions

1. Dynatrace collects metrics from any pods that are annotated with a metrics.dynatrace.com/scrape property set to true in the pod definition. Depending on the actual exporter in a pod, you might need to set additional annotations to the pod definition to allow Dynatrace to properly ingest those metrics.
2. Enable metrics scraping: Set metrics.dynatrace.com/scrape to true to enable Dynatrace to collect Prometheus metrics exposed for this pod.
3. Define the metrics port: By default, Prometheus metrics are available at the first exposed TCP port of the pod. Set metrics.dynatrace.com/port to the respective port.

Once you’ve annotated the Kubernetes pods, the respective metrics will automatically show up in your environment for charting, alerting, and analysis.