AWS three-tier architecture in us-east-1 combining WAF v2, CloudFront, and Application Load Balancer to protect and distribute traffic across ECS Fargate microservices. User requests flow through WAF v2 for DDoS protection, then CloudFront for edge caching, before reaching the ALB which routes to Auth, Orders, Payments, and Notifications microservices across availability zones. RDS MySQL Multi-AZ replication ensures database high availability and automatic failover for production workloads. This pattern demonstrates AWS best practices for security, scalability, and fault tolerance in containerized microservice architectures. Fork and customize this diagram on Diagrams.so to match your region, service count, or database engine.