Add controller.metrics.serviceMonitor.annotations in Helm chart (#9677)

Signed-off-by: Mathieu Parent <math.parent@gmail.com>

Author: sathieu

charts/ingress-nginx/README.md

@@ -369,6 +369,7 @@ As of version `1.26.0` of this chart, by simply not providing any clusterIP valu
 | controller.metrics.service.servicePort | int | `10254` |  |
 | controller.metrics.service.type | string | `"ClusterIP"` |  |
 | controller.metrics.serviceMonitor.additionalLabels | object | `{}` |  |
+| controller.metrics.serviceMonitor.annotations | object | `{}` |  |
 | controller.metrics.serviceMonitor.enabled | bool | `false` |  |
 | controller.metrics.serviceMonitor.metricRelabelings | list | `[]` |  |
 | controller.metrics.serviceMonitor.namespace | string | `""` |  |

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

@@ -14,6 +14,9 @@ metadata:
   {{- if .Values.controller.metrics.serviceMonitor.additionalLabels }}
     {{- toYaml .Values.controller.metrics.serviceMonitor.additionalLabels | nindent 4 }}
   {{- end }}
+  {{- if .Values.controller.metrics.serviceMonitor.annotations }}
+  annotations: {{ toYaml .Values.controller.metrics.serviceMonitor.annotations | nindent 4 }}
+  {{- end }}
 spec:
   endpoints:
     - port: {{ .Values.controller.metrics.portName }}

charts/ingress-nginx/values.yaml

@@ -867,6 +867,7 @@ controller:
     serviceMonitor:
       enabled: false
       additionalLabels: {}
+      annotations: {}
       ## The label to use to retrieve the job name from.
       ## jobLabel: "app.kubernetes.io/name"
       namespace: ""