Automating cross-account refresh for Amazon RDS Multi-AZ DB clusters

This article demonstrates how to automate cross-account environment refresh for Amazon RDS Multi-AZ DB clusters using a serverless pipeline with Lambda, Step Functions, and EventBridge.

• Works around RDS snapshot sharing limitation by creating intermediate single-AZ instance snapshots
• Seven-step orchestrated workflow spans source and destination AWS accounts
• Source account creates cluster snapshot, restores temporary instance, creates shareable instance snapshot, and shares across accounts
• Destination account copies shared snapshot with re-encryption and restores as Multi-AZ DB cluster
• EventBridge forwards success events between accounts to trigger destination workflow automatically
• Includes CloudFormation templates, Lambda functions, and helper scripts for deployment
• Supports scheduled refreshes, team notifications, and data privacy extensions

The solution enables automated non-production environment refresh without manual intervention after initial trigger, simplifying cross-account RDS Multi-AZ cluster management.