System administrators adopting AWS often struggle with automation, scalability, and multi-account management. Originally authored by Prashant Lakhera and now thoroughly updated by Senior Solutions Architect Marcel Neidinger, this second edition is your scenario-driven, hands-on guide to efficiently deploying and managing cloud infrastructure using Infrastructure as Code (IaC). This updated edition features new topics like chaos engineering with AWS Fault Injection Simulator, multi-account CI/CD deployments, reusable IaC patterns, and cloud compliance using AWS Config and service control policies—all to help you build modern cloud architectures. You’ll set up AWS CLI, Terraform, and CDK to automate deployments, as well as explore cloud networking with VPCs, EC2, and Transit Gateway, followed by auto-scaling and load balancing strategies. The chapters highlight AWS Secrets Manager for securely storing and accessing your secrets, along with CloudWatch for monitoring and observability in the cloud. You’ll implement centralized logging and develop backup and disaster recovery strategies. The book guides you through the processes and best practices for setting up a multi-account environment, with real-world scenarios for optimizing costs and ensuring high availability. By the end of this book, you’ll have the skills to efficiently deploy, manage, and optimize AWS infrastructure at scale.