Chart: Add controller.metrics.prometheusRule.annotations. (#11849)

charts/ingress-nginx/README.md

@@ -372,6 +372,7 @@ As of version `1.26.0` of this chart, by simply not providing any clusterIP valu
 | controller.metrics.port | int | `10254` |  |
 | controller.metrics.portName | string | `"metrics"` |  |
 | controller.metrics.prometheusRule.additionalLabels | object | `{}` |  |
+| controller.metrics.prometheusRule.annotations | object | `{}` | Annotations to be added to the PrometheusRule. |
 | controller.metrics.prometheusRule.enabled | bool | `false` |  |
 | controller.metrics.prometheusRule.rules | list | `[]` |  |
 | controller.metrics.service.annotations | object | `{}` |  |

charts/ingress-nginx/templates/controller-prometheusrule.yaml

@@ -14,6 +14,9 @@ metadata:
   {{- if .Values.controller.metrics.prometheusRule.additionalLabels }}
     {{- toYaml .Values.controller.metrics.prometheusRule.additionalLabels | nindent 4 }}
   {{- end }}
+  {{- if .Values.controller.metrics.prometheusRule.annotations }}
+  annotations: {{ toYaml .Values.controller.metrics.prometheusRule.annotations | nindent 4 }}
+  {{- end }}
 spec:
 {{- if .Values.controller.metrics.prometheusRule.rules }}
   groups:

charts/ingress-nginx/tests/controller-prometheusrule_test.yaml

@@ -15,3 +15,15 @@ tests:
       - equal:
           path: metadata.name
           value: RELEASE-NAME-ingress-nginx-controller
+
+  - it: should create a PrometheusRule with annotations if `controller.metrics.prometheusRule.annotations` is set
+    set:
+      controller.metrics.enabled: true
+      controller.metrics.prometheusRule.enabled: true
+      controller.metrics.prometheusRule.annotations:
+        my-little-annotation: test-value
+    asserts:
+      - equal:
+          path: metadata.annotations
+          value:
+            my-little-annotation: test-value

charts/ingress-nginx/values.yaml

@@ -899,6 +899,8 @@ controller:
     prometheusRule:
       enabled: false
       additionalLabels: {}
+      # -- Annotations to be added to the PrometheusRule.
+      annotations: {}
       # namespace: ""
       rules: []
       # # These are just examples rules, please adapt them to your needs