[stable/helm-exporter] Add support for using ingress (#14442)

* Add support for using ingress

Signed-off-by: Christopher Farrenden <chris.farrenden@domain.com.au>

* Use less convoluted annotation pulling

Signed-off-by: Christopher Farrenden <chris.farrenden@domain.com.au>

* Revert clusterIP conditional

Signed-off-by: Christopher Farrenden <chris.farrenden@domain.com.au>

stable/helm-exporter/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v1
 appVersion: "0.4.0"
 description: Exports helm release stats to prometheus
 name: helm-exporter
-version: 0.2.4
+version: 0.3.0
 home: https://github.com/sstarcher/helm-exporter
 sources:
 - https://github.com/sstarcher/helm-exporter

stable/helm-exporter/README.md

@@ -52,7 +52,10 @@ Parameter | Description | Default
 `serviceMonitor.interval` | Interval at which metrics should be scraped | ``
 `serviceMonitor.namespace` | The namespace where the Prometheus Operator is deployed | ``
 `serviceMonitor.additionalLabels` | Additional labels to add to the ServiceMonitor | `{}`
-
+`ingress.enabled` | Set to true if using an ingress | `false`
+`ingress.annotations` | Ingress annotations | `{}`
+`ingress.path` | Ingress path | `/`
+`ingress.host` | Ingress hostname e.g example.com | ``
 ```console
 $ helm install stable/helm-exporter --name my-release
 ```

stable/helm-exporter/templates/ingress.yaml

@@ -0,0 +1,24 @@
+{{- if .Values.ingress.enabled }}
+apiVersion: extensions/v1beta1
+kind: Ingress
+metadata:
+  name: {{ include "helm-exporter.fullname" . }}
+  labels:
+    app.kubernetes.io/name: {{ include "helm-exporter.name" . }}
+    helm.sh/chart: {{ include "helm-exporter.chart" . }}
+    app.kubernetes.io/instance: {{ .Release.Name }}
+    app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- with .Values.ingress.annotations }}
+  annotations:
+{{ toYaml . | indent 4 }}
+{{- end }}
+spec:
+  rules:
+    - host: {{ .Values.ingress.host }}
+      http:
+        paths:
+          - path: {{ .Values.ingress.path }}
+            backend:
+              serviceName: {{ include "helm-exporter.name" . }}
+              servicePort: 9571
+{{- end }}

stable/helm-exporter/values.yaml

@@ -36,3 +36,13 @@ serviceMonitor:
   interval:
   namespace:
   additionalLabels: {}
+
+ingress:
+  # Specifies whether an Ingress should be created
+  enabled: false
+
+  annotations: {}
+  # kubernetes.io/ingress.class: nginx
+  path: /
+  # Name of host e.g example.com
+  host: