Added api deprecation check

.functions/kubernetes.sh

@@ -55,3 +55,8 @@ function validate_private_ingress(){
     done
 
 }
+
+function k8s_list_deprecation_apis(){
+    #Prints all api deprecation warnings in cluster
+    kubectl get --raw /metrics | prom2json | jq -c '.[] | select(.name=="apiserver_requested_deprecated_apis").metrics[].labels' | column -t -s'{}[],"'
+}