Automate Amazon RDS credential rotation with AWS Secrets Manager for primary instances with read replicas

This article provides a comprehensive guide to automating Amazon RDS credential rotation using AWS Secrets Manager for primary database instances with read replicas.

• Solution uses AWS Lambda to orchestrate secure password rotation
• Enables automated credential management for RDS instances and read replicas
• Involves creating a Python Lambda function to handle password rotation steps
• Requires configuring Secrets Manager, IAM permissions, and environment variables
• Password rotation can be scheduled automatically (in this example, every 4 hours)

The solution addresses a key limitation where using Secrets Manager traditionally prevented creating read replicas, providing a flexible approach to secure credential management for database instances.