Hybrid identity architecture bridging on-premises Active Directory with AWS IAM Identity Center, Microsoft Entra ID, and conditional access policies across dev, test, and prod accounts. On-prem AD syncs to AWS Managed Microsoft AD for legacy Windows and SQL Server workloads, while Entra ID provides centralized IdP with MFA and Conditional Access for human users accessing AWS Organizations. CI/CD pipeline automates todo-app deployment via GitHub, AWS CodePipeline, CodeBuild unit tests, Amazon ECR image storage, and ECS Fargate services with CloudWatch monitoring and SNS alerts. This pattern eliminates standalone user accounts in AWS, enforces least-privilege IAM task roles and IRSA for microservices, and detects deployment failures before production. Fork this diagram to customize account structure, Entra ID policies, or CodeBuild test thresholds for your enterprise hybrid environment.