title: user data for managed node group
body: <p>How can I edit user data in the managed node group which is part of my EKS cluster?
  I tried to create a new version for the Launch Template that EKS cluster has created but I get an error on "Health issues" of the cluster: <strong>Ec2LaunchTemplateVersionMismatch</strong>
  I want to make the nodes in the managed node group to mount the EFS automatically, without doing it manually on each instance, because of the autoscaling. </p>