Infrastructure as Code with Multi-Stack Deployment

This section explains the Infrastructure as Code (IaC) strategy used to build the Travel Guide Application infrastructure from scratch using CloudFormation/SAM with a multi-stack deployment pattern.

Overview

The Travel Guide Application is built using a microservices architecture deployed across multiple AWS CloudFormation stacks. This approach provides better isolation, faster deployments, and reduced blast radius when making changes.

Key Concepts

• Infrastructure as Code: All infrastructure defined in CloudFormation templates
• Multi-Stack Pattern: Separation of core resources and service-specific resources
• Cross-Stack References: Sharing resources between stacks using CloudFormation Exports/Imports
• Deployment Orchestration: Automated deployment using Bash scripts
• Environment Management: Parameter-based configuration for multiple environments

Content

• IaC Strategy & Tool Selection
• Multi-Stack Architecture
• Cross-Stack References
• Deployment Orchestration
• Parameter Management
• Lessons Learned & Best Practices