AWS Launch Wizard for SAP supports integration with Amazon Route53 for domain naming and routing outbound internet connections via your own Proxy Servers
AWS Launch Wizard for SAP is now integrated with Amazon Route53 as the Domain name system. Starting today, you can choose a Route53 hosted zone as the domain name system for SAP systems deployed with AWS Launch Wizard. Launch Wizard creates DNS records in the chosen Route53 hosted zone eliminating the need to maintain /etc/hosts file entries for each of the EC2 instances being deployed as part of the deployment. Since it’s not possible for two instances in the same domain to have same hostname, Launch Wizard validates the user input to ensure that the record does not exist already, thereby avoiding deployment failures.
Source:: Amazon AWS