helm: Provide a way to set an explicit ingress class name.

Author: aogier

kubernetes/chart/zulip/README.md

@@ -76,6 +76,7 @@ Now you're ready to follow [the installation instructions above](#installation).
 | image.tag                                                          | string | `"11.4-0"`                  |             |
 | imagePullSecrets                                                   | list   | `[]`                        |             |
 | ingress.annotations                                                | object | `{}`                        |             |
+| ingress.className                                                  | string | `nil`                       |             |
 | ingress.enabled                                                    | bool   | `false`                     |             |
 | ingress.hosts[0].host                                              | string | `"zulip.example.com"`       |             |
 | ingress.hosts[0].paths[0].path                                     | string | `"/"`                       |             |

kubernetes/chart/zulip/templates/ingress.yaml

@@ -12,6 +12,9 @@ metadata:
     {{- toYaml . | nindent 4 }}
   {{- end }}
 spec:
+  {{- if .Values.ingress.className }}
+  ingressClassName: {{ .Values.ingress.className }}
+  {{- end }}
   {{- if .Values.ingress.tls }}
   tls:
     {{- range .Values.ingress.tls }}

kubernetes/chart/zulip/values.yaml

@@ -94,6 +94,8 @@ ingress:
   #  - secretName: chart-example-tls
   #    hosts:
   #      - zulip.example.com
+  ## Provide an explicit className for the ingress
+  className:
 
 resources:
   {}