GitHub Actions CI/CD pipeline orchestrates automated builds, tests, and blue-green deployments to AWS ECS across multi-AZ infrastructure with Route 53, CloudFront, WAF, and Shield protecting the application layer. Code commits trigger Docker image builds, unit and integration tests, and ECR pushes, then CodePipeline coordinates zero-downtime ECS task swaps between blue (active) and green (standby) environments. RDS Aurora with read replicas, ElastiCache clusters, and DynamoDB Global Tables provide resilient data persistence across availability zones. This architecture eliminates deployment downtime, enables instant rollback, and maintains high availability for production workloads. Fork and customize this diagram on Diagrams.so to match your VPC topology, instance types, or add additional pipeline stages like security scanning or performance testing.