[stable/rabbitmq] Improve NOTES.txt (#16185)

Signed-off-by: juan131 <juan@bitnami.com>

stable/rabbitmq/Chart.yaml

@@ -1,6 +1,6 @@
 apiVersion: v1
 name: rabbitmq
-version: 6.2.4
+version: 6.2.5
 appVersion: 3.7.17
 description: Open source message broker software that implements the Advanced Message Queuing Protocol (AMQP)
 keywords:

stable/rabbitmq/README.md

@@ -130,6 +130,7 @@ The following table lists the configurable parameters of the RabbitMQ chart and
 | `metrics.serviceMonitor.relabellings`| Specify Metric Relabellings to add to the scrape endpoint                      | `nil`                     |
 | `metrics.serviceMonitor.honorLabels` | honorLabels chooses the metric's labels on collisions with target labels.      | `false`                   |
 | `metrics.serviceMonitor.additionalLabels`| Used to pass Labels that are required by the Installed Prometheus Operator | `{}`                      |
+| `metrics.port`                       | Prometheus metrics exporter port                 | `9090`                                                  |
 | `metrics.env`                        | Exporter [configuration environment variables](https://github.com/kbudde/rabbitmq_exporter#configuration) | `{}` |
 | `metrics.resources`                  | Exporter resource requests/limit                 | `nil`                                                   |
 | `metrics.capabilities`               | Exporter: Comma-separated list of extended [scraping capabilities supported by the target RabbitMQ server](https://github.com/kbudde/rabbitmq_exporter#extended-rabbitmq-capabilities) | `bert,no_sort` |

stable/rabbitmq/templates/NOTES.txt

@@ -58,6 +58,17 @@ To Access the RabbitMQ Management interface:
 
 {{- end }}
 
+{{- if .Values.metrics.enabled }}
+
+To access the RabbitMQ Prometheus metrics, get the RabbitMQ Prometheus exporter URL by running:
+
+    echo "Prometheus Metrics URL: http://127.0.0.1:{{ .Values.metrics.port }}/metrics"
+    kubectl port-forward --namespace {{ .Release.Namespace }} {{ template "rabbitmq.fullname" . }}-0 {{ .Values.metrics.port }}:{{ .Values.metrics.port }}
+
+Then, open the URL obtained in a browser.
+
+{{- end }}
+
 {{- if and (contains "bitnami/" .Values.image.repository) (not (.Values.image.tag | toString | regexFind "-r\\d+$|sha256:")) }}
 
 WARNING: Rolling tag detected ({{ .Values.image.repository }}:{{ .Values.image.tag }}), please note that it is strongly recommended to avoid using rolling tags in a production environment.

stable/rabbitmq/templates/statefulset.yaml

@@ -256,7 +256,7 @@ spec:
         {{- end }}
         ports:
         - name: metrics
-          containerPort: 9090
+          containerPort: {{ .Values.metrics.port }}
         livenessProbe:
           httpGet:
             path: /metrics

stable/rabbitmq/values-production.yaml

@@ -311,6 +311,8 @@ metrics:
   ## environment variables to configure rabbitmq_exporter
   ## ref: https://github.com/kbudde/rabbitmq_exporter#configuration
   env: {}
+  ## Metrics exporter port
+  port:	9090
   ## Comma-separated list of extended scraping capabilities supported by the target RabbitMQ server
   ## ref: https://github.com/kbudde/rabbitmq_exporter#extended-rabbitmq-capabilities
   capabilities: "bert,no_sort"

stable/rabbitmq/values.yaml

@@ -307,6 +307,8 @@ metrics:
   ## environment variables to configure rabbitmq_exporter
   ## ref: https://github.com/kbudde/rabbitmq_exporter#configuration
   env: {}
+  ## Metrics exporter port
+  port: 9090
   ## Comma-separated list of extended scraping capabilities supported by the target RabbitMQ server
   ## ref: https://github.com/kbudde/rabbitmq_exporter#extended-rabbitmq-capabilities
   capabilities: "bert,no_sort"