Scaling AWS Fault Injection Service Across Your Organization And Regions

This article discusses scaling AWS Fault Injection Service (FIS) across organizations and regions, focusing on multi-Region resilience testing and chaos engineering strategies.

• AWS FIS allows organizations to inject real-world failures into multi-Region architectures
• Cross-Region Connectivity scenario tests disruptions in: • VPC traffic and peering • Transit Gateway connectivity • AWS public endpoint access • Load balancer and API gateway endpoints • S3 and DynamoDB cross-region replication
• Key scenario actions include: • Disrupting subnet connectivity • Interrupting Transit Gateway communication • Pausing S3 replication • Stopping DynamoDB global table replication
• Requires careful multi-account configuration with specific IAM roles and permissions
• Helps organizations validate complex cross-account dependencies and improve system reliability

The ultimate goal is to build more resilient, fault-tolerant cloud infrastructures by systematically testing and understanding system behavior during potential failure scenarios.