Amazon Relational Database Service
User Guide (API Version 2014-10-31)

Creating a Database Account Using IAM Authentication

With IAM database authentication, you don't need to assign database passwords to the user accounts you create. If you remove an IAM user that is mapped to a database account, you should also remove the database account with the DROP USER statement.

Using IAM Authentication with PostgreSQL

To use IAM authentication with PostgreSQL, connect to the DB instance, create database users, and then grant them the rds_iam role as shown in the following example.

CREATE USER db_userx WITH LOGIN; GRANT rds_iam TO db_userx;

Using IAM Authentication with MySQL

With MySQL, authentication is handled by AWSAuthenticationPlugin—an AWS-provided plugin that works seamlessly with IAM to authenticate your IAM users. Connect to the DB instance and issue the CREATE USER statement, as shown in the following example.

CREATE USER jane_doe IDENTIFIED WITH AWSAuthenticationPlugin AS 'RDS';

The IDENTIFIED WITH clause allows MySQL to use the AWSAuthenticationPlugin to authenticate the database account (jane_doe). The AS 'RDS' clause refers to the authentication method, and the specified database account must have the same name as the IAM user or role. In this example, both the database account and the IAM user or role must be named jane_doe.


If you see the following message, it means that the AWS-provided plugin is not available for the current DB instance.

ERROR 1524 (HY000): Plugin 'AWSAuthenticationPlugin' is not loaded

To troubleshoot this error, verify that you are using a supported configuration and that you have enabled IAM database authentication on your DB instance. For more information, see Availability for IAM Database Authentication and Enabling and Disabling IAM Database Authentication.

After you create an account using AWSAuthenticationPlugin, you manage it in the same way as other database accounts. For example, you can modify account privileges with GRANT and REVOKE statements, or modify various account attributes with the ALTER USER statement.