Add Templates to pretty config

helmule/extensions/kubernetes-dashboard/config.yaml

@@ -0,0 +1,4 @@
+---
+url:
+  path: app.ingress.hosts
+  description: A hostname that will be used by ingress

helmule/helmule.yaml

@@ -151,6 +151,15 @@ charts:
 
   - name: kubernetes-dashboard
     repository: kubernetes-dashboard
+    extensions:
+      - name: add a pretty config mapper
+        source_dir: ./extensions/kubernetes-dashboard/
+        target_dir: config
+    patches:
+      - name: add a pretty config mapper
+        custom_command:
+          commands:
+            - mv ./config/config.yaml .
+            - rm -rf config
     mirrors:
-      - custom_command
-
+      - custom_command