improvement: Dont set -x in userdata to avoid printing sensitive informations in logs (terraform-aws-modules#1187)

Author: myoung34

examples/launch_templates_with_managed_node_groups/templates/userdata.sh.tpl

@@ -3,8 +3,8 @@ Content-Type: multipart/mixed; boundary="//"
 
 --//
 Content-Type: text/x-shellscript; charset="us-ascii"
-#!/bin/bash 
-set -xe
+#!/bin/bash
+set -e
 
 # Bootstrap and join the cluster
 /etc/eks/bootstrap.sh --b64-cluster-ca '${cluster_auth_base64}' --apiserver-endpoint '${endpoint}' ${bootstrap_extra_args} --kubelet-extra-args "${kubelet_extra_args}" '${cluster_name}'

templates/userdata.sh.tpl

@@ -1,4 +1,4 @@
-#!/bin/bash -xe
+#!/bin/bash -e
 
 # Allow user supplied pre userdata code
 ${pre_userdata}