Db Instance
The AWS::RDS::DBInstance resource creates an Amazon RDS DB instance.
Properties
A value that indicates whether the DB instance is restarted when you rotate your SSL/TLS certificate. By default, the DB instance is restarted when you rotate your SSL/TLS certificate. The certificate is not updated until the DB instance is restarted. If you are using SSL/TLS to connect to the DB instance, follow the appropriate instructions for your DB engine to rotate your SSL/TLS certificate This setting doesn't apply to RDS Custom.
Indicates whether the DB instance is an internet-facing instance. If you specify true, AWS CloudFormation creates an instance with a publicly resolvable DNS name, which resolves to a public IP address. If you specify false, AWS CloudFormation creates an internal instance with a DNS name that resolves to a private IP address.