c12s-kubespray/docs/etcd.md

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# etcd
## Metrics
To expose metrics on a separate HTTP port, define it in the inventory with:
```yaml
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:
```yaml
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](https://github.com/prometheus-community/helm-charts/tree/main/charts/kube-prometheus-stack)
chart with the following Helm `values.yaml` :
```yaml
kubeEtcd:
service:
enabled: false
```