Terraform

AWS Landing Zone with Terraform

Modular Terraform infrastructure for AWS multi-account landing zone with centralized networking, security, and compliance.

GitHub Repository

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Problem Statement

Rapid cloud adoption created shadow IT accounts with inconsistent security baselines, no centralized logging, and manual account provisioning taking weeks.

Solution

Implemented an AWS Landing Zone using Terraform modules for account vending, VPC hub-and-spoke networking, AWS Organizations SCPs, centralized CloudTrail, and Config rules for compliance monitoring.

Technology Stack

Terraform

AWS

AWS Organizations

Transit Gateway

CloudTrail

AWS Config

IAM

Challenges

Managing Terraform state across 20+ AWS accounts securely
Designing SCPs that enforce security without blocking legitimate operations
Handling cross-account IAM role assumption patterns

Lessons Learned

Module composition patterns matter more than individual module quality
Automated account vending reduces onboarding from weeks to hours
Drift detection should be a first-class concern, not an afterthought