KANSUP74-12 add ingressClass config

CHANGELOG.md

@@ -6,6 +6,13 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 chronology things are added/fixed/changed and - where possible - links to the PRs involved.
 
 ### Changes
+
+[v0.8.0]
+
+* **Potentially breaking change**: changed `alfresco-ingress` definition & default values to enable usage of `ingressClassName` property in favour of `kubernetes.io/ingress.class` annotation.
+
+  **⚠️ This may particularly impact aws deployments using alb**
+
 [v0.7.5]
 * added general.hibernate to set all replicas to 0
 

README.md

@@ -260,14 +260,28 @@ nginx rules to redirect the normal pages to a 503 maintenance page.
 * Default: None
 * Description: The host that points to the alfresco cluster for the syncService service
 
+#### `ingress.ingressClass`
+
+* Required: false
+* Default: `nginx`
+* Description: Reference name for the ingressClass to be used. 
+  Replacement for `kubernetes.io/ingress.class` annotation since it's deprecation in k8s 1.18. 
+  Set to `null` to allow usage of `kubernetes.io/ingress.class` in the `ingress.ingressAnnotations` dict.
+
 #### `ingress.ingressAnnotations`
 
 * Required: false
 * Default:
   ```
-  kubernetes.io/ingress.class: "nginx"
+    kubernetes.io/ingress.class: "nginx"
+    cert-manager.io/cluster-issuer: "letsencrypt-production"
   ```
-* Description: Annotations for ingress
+* Description: Annotations for ingress.
+* Remarks:
+  * The default value of `kubernetes.io/ingress.class: "nginx"` will be filtered
+  out if the `ingress.ingressClass` is set (This includes the default value). 
+  The `kubernetes.io/ingress.class` is deprecated since k8s v1.18, but some setups still rely on it.
+  Hence it can still be set and used if `ingress.ingressClass` is set to `null`.
 
 #### `ingress.additionalPaths`
 

local-values.yaml

@@ -2,6 +2,8 @@ ingress:
   host: test
   protocol: http
   kubernetes.io/ingress.class: {}
+#  enabling the line below will cause the ingress.class annotation to be rendered instead of the ingressClass property
+#  ingressClass: null
 acs:
   resources:
     requests:

xenit-alfresco/templates/ingress/alfresco-ingress.yaml

@@ -5,10 +5,23 @@ metadata:
   name: alfresco-ingress
   namespace: {{ .Release.Namespace | quote }}
   annotations:
-    {{- if .Values.ingress.ingressAnnotations}}
-    {{ toYaml .Values.ingress.ingressAnnotations | nindent 4 }}
+    {{- if .Values.ingress.ingressAnnotations }}
+    {{- /*
+      See https://kubernetes.io/docs/concepts/services-networking/ingress/#deprecated-annotation
+      Remove kubernetes.io/ingress.class annotation if ingressClass is set
+      ingressClass can be removed from defaults by setting ingressClass: null in values override
+      Tied to spec.ingressClassName
+    */ -}}
+    {{- range $key, $value := .Values.ingress.ingressAnnotations }}
+    {{- if not ( and ($.Values.ingress.ingressClass) (eq $key "kubernetes.io/ingress.class")) }}
+    {{ $key  }}: {{ $value }}
+    {{- end }}
+    {{- end }}
     {{- end }}
 spec:
+  {{- if .Values.ingress.ingressClass }}
+  ingressClassName: {{ .Values.ingress.ingressClass }}
+  {{- end }}
   {{- if eq .Values.ingress.protocol "https" }}
   tls:
     - hosts:

xenit-alfresco/values.yaml

@@ -21,6 +21,7 @@ general:
       selfManaged: false
 
 ingress:
+  ingressClass: "nginx"
   protocol: 'https'
   ingressAnnotations:
     kubernetes.io/ingress.class: "nginx"