aws userdata log and start apache (aws linux/rhel)

!/bin/bash -xe
  exec > >(tee /var/log/user-data.log|
      logger -t user-data -s 2>/dev/console) 2>&1
      yum -y update
      echo "#### USERDATA START ####"
      sudo yum install httpd -y
      sudo systemctl start httpd.service
      sudo systemctl enable httpd.service