Amazon Relational Database Service (RDS) on VMware is a service that delivers AWS-managed relational databases in on-premises VMware environments. RDS on VMware automates time-consuming administration tasks such as database provisioning, operating system and database patching, backups, point-in-time restore, and database instance health monitoring. It makes it easy to set up, operate, and scale databases in your on-premises VMware vSphere environments, freeing you to focus on your applications.

from Recent Announcements https://aws.amazon.com/about-aws/whats-new/2019/10/amazon-rds-on-vmware-is-now-generally-available/