Make CONTRIB compatible with Kubernetes v1.17

Issue-ID: OOM-2452

Signed-off-by: Grzegorz Lis <grzegorz.lis@nokia.com>
Change-Id: I82aa47855716bb2647aea6aac29484b325d80ef0
diff --git a/kubernetes/contrib/components/netbox/templates/ingress.yaml b/kubernetes/contrib/components/netbox/templates/ingress.yaml
index 701d4c8..6f604a7 100755
--- a/kubernetes/contrib/components/netbox/templates/ingress.yaml
+++ b/kubernetes/contrib/components/netbox/templates/ingress.yaml
@@ -16,7 +16,7 @@
 {{- if .Values.ingress.enabled -}}
 {{- $serviceName := include "common.fullname" . -}}
 {{- $servicePort := .Values.service.externalPort -}}
-apiVersion: extensions/v1beta1
+apiVersion: networking.k8s.io/v1beta1
 kind: Ingress
 metadata:
   name: {{ $serviceName }}