新增learn-kubernetes（https://github.com/yyong-brs/learn-kubernetes）相关文件

learn/learn-kubernetes-master/kiamol/ch15/add-to-hosts.sh

@@ -0,0 +1,10 @@
+#!/bin/sh
+
+CONTROLLER="$2-controller"
+NS="kiamol-$2"
+IP=$(kubectl get svc $CONTROLLER -o jsonpath='{.status.loadBalancer.ingress[0].*}' -n $NS)
+if [ "$IP" = "localhost" ]; then 
+    IP='127.0.0.1'
+fi
+
+echo "$IP  $1" | sudo tee -a /etc/hosts