c12s-kubespray/docs/etcd.md

etcd

Metrics

To expose metrics on a separate HTTP port, define it in the inventory with:

etcd_metrics_port: 2381

To create a service etcd-metrics and associated endpoints in the kube-system namespace, define it's labels in the inventory with:

etcd_metrics_service_labels:
  k8s-app: etcd
  app.kubernetes.io/managed-by: Kubespray
  app: kube-prometheus-stack-kube-etcd
  release: prometheus-stack

The last two labels in the above example allows to scrape the metrics from the kube-prometheus-stack chart with the following Helm values.yaml :

kubeEtcd:
  service:
    enabled: false