morazow commented on code in PR #2711:
URL: https://github.com/apache/fluss/pull/2711#discussion_r2921348173
##########
website/docs/install-deploy/deploying-with-helm.md:
##########
@@ -255,6 +267,63 @@ listeners:
port: 9124
```
+### Metrics and Monitoring
+
+When `metrics.enabled` is `true`, adds the following `server.yaml` config
entries:
+
+- `metrics.reporters`: comma-separated reporter names from `metrics.reporters`
+- `metrics.reporter.<name>.<option>`: one entry per reporter option in
`metrics.reporters`
+
+If a metrics key is already provided in `configurationOverrides` (for example,
`metrics.reporters` or `metrics.reporter.prometheus.port`), the chart keeps the
value from `configurationOverrides`.
+
+#### Prometheus Annotation Based Scraping
+
+The example values below show how to add annotations to the metrics services
so that a Prometheus server can discovery and scrape them automatically based
on the annotations:
+
+```yaml
+metrics:
+ enabled: true
+ reporters:
+ prometheus:
+ port: 9249
+ service:
+ annotations:
+ prometheus.io/scrape: "true"
+ prometheus.io/path: "/metrics"
+ prometheus.io/port: "9249"
+```
+
+#### Prometheus ServiceMonitor Based Scraping
+
+Similarly, if using the [Prometheus
Operator](https://prometheus-operator.dev/), use the values below to add labels
to the metrics services and then create a
[`ServiceMonitor`](https://prometheus-operator.dev/docs/api-reference/api/#monitoring.coreos.com/v1.ServiceMonitor)
that selects them:
+
+```yaml
+metrics:
+ enabled: true
+ reporters:
+ prometheus:
+ port: 9249
+ service:
+ portName: metrics
+ labels:
+ monitoring: enabled
+```
+
+Then create a `ServiceMonitor` resource that matches the label:
Review Comment:
What happened here 🤔 Maybe misclick, anyway adding them to batch
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