Add ingress-nginx helm chart

deploy/base/kustomization.yaml

@@ -1,2 +1,17 @@
 ---
-helmCharts: []
+helmCharts:
+- name: ingress-nginx
+  version: "4.1.0"
+  repo: https://kubernetes.github.io/ingress-nginx
+  includeCRDs: true
+  releaseName: ingress-nginx
+  valuesInline:
+    controller:
+      publishService:
+        enabled: true
+      metrics:
+        enabled: true
+        service:
+          annotations:
+            prometheus.io/scrape: "true"
+            prometheus.io/port: "10254"