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docs/serving/accessing-metrics.md

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Accessing metrics

To open the Grafana UI (the visualization tool for Prometheus, enter the following command:

kubectl port-forward -n monitoring $(kubectl get pods -n monitoring --selector=app=grafana --output=jsonpath="{.items..metadata.name}") 3000

This starts a local proxy of Grafana on port 3000. The Grafana UI is only exposed within the cluster for security reasons.

Navigate to the Grafana UI at http://localhost:3000. Select Home button on the top of the page to see the list of pre-installed dashboards (screenshot below): Knative Dashboards

The following dashboards are pre-installed with Knative Serving:

  • Revision HTTP Requests: HTTP request count, latency and size metrics per revision and per configuration
  • Nodes: CPU, memory, network and disk metrics at node level
  • Pods: CPU, memory and network metrics at pod level
  • Deployment: CPU, memory and network metrics aggregated at deployment level
  • Istio, Mixer and Pilot: Detailed Istio mesh, Mixer and Pilot metrics
  • Kubernetes: Dashboards giving insights into cluster health, deployments and capacity usage

To login as an administrator and modify or add dashboards, sign in with username admin and password admin. Make sure to change the password before exposing Grafana UI to outside the cluster.