Metrics

Observing Dapr metrics in Kubernetes

Dapr exposes a Prometheus metrics endpoint that you can scrape to gain a greater understanding of how Dapr is behaving and to setup alerts for specific conditions.

Configuration

The metrics endpoint is enabled by default, you can disable it by passing the command line argument --enable-metrics=false to Dapr system processes.

The default metrics port is 9090. This can be overridden by passing the command line argument --metrics-port to Daprd. Additionally, the metrics exporter can be disabled for a specific application by setting the dapr.io/enable-metrics: "false" annotation to your application deployment. With the metrics exporter disabled, daprd will not open the metrics listening port.

  1. apiVersion: apps/v1
  2. kind: Deployment
  3. metadata:
  4.   name: nodeapp
  5.   labels:
  6.     app: node
  7. spec:
  8.   replicas: 1
  9.   selector:
  10.     matchLabels:
  11.       app: node
  12.   template:
  13.     metadata:
  14.       labels:
  15.         app: node
  16.       annotations:
  17.         dapr.io/enabled: "true"
  18.         dapr.io/app-id: "nodeapp"
  19.         dapr.io/app-port: "3000"
  20.         dapr.io/enable-metrics: "true"
  21.         dapr.io/metrics-port: "9090"
  22.     spec:
  23.       containers:
  24.       - name: node
  25.         image: dapriosamples/hello-k8s-node:latest
  26.         ports:
  27.         - containerPort: 3000
  28.         imagePullPolicy: Always

To disable the metrics collection in the Dapr side cars running in a specific namespace, you can use the metric spec configuration and set enabled: false to disable the metrics in the Dapr runtime.

  1. apiVersion: dapr.io/v1alpha1
  2. kind: Configuration
  3. metadata:
  4.   name: tracing
  5.   namespace: default
  6. spec:
  7.   tracing:
  8.     samplingRate: "1"
  9.   metric:
  10.     enabled: true

Metrics

Each Dapr system process emits Go runtime/process metrics by default and have their own metrics:

References

Last modified September 17, 2021 : Merge pull request #1757 from georgestevens99/1440SecretKeyRefExplanation (620a5f8)