Amazon RDS (Relational Database Service) is a managed service that makes it easy to set up, operate, and scale relational databases in the cloud.
It supports multiple engines like MySQL, PostgreSQL, MariaDB, Oracle, and SQL Server, and provides features such as automated backups, scaling, monitoring, and high availability.
To create the RDS Handler, you must pass AWS credentials (access_key, secret_key, and region).
This enables you to interact with RDS resources, clusters, proxies, and their associations with EC2.