rds-proxy

rds-proxy lets you make use of IAM-based authentication to AWS RDS instances from tools that don't natively support that method of authentication.

To use it, set up a config file to point to the desired RDS Instance. When you run the proxy, it uses the standard methods of picking up an AWS credential (e.g. credentials file, environment variables, etc.).

Optionally, you can point the proxy at a different endpoint to make use of something like an SSH tunnel to a bastion host.