Deploying a Production-Ready React App on AWS using Terraform Module, S3, CloudFront & GitHub Actions

Modern frontend apps need fast, scalable, and cost-efficient hosting. While AWS S3 is great for static hosting, making it production-ready requires CloudFront, proper security, and automation. In this blog, I’ll show how I built a fully automated pipeline. to deploy a React app using Terraform and GitHub Actions. 📌 Architecture Overview Here’s what we’re building: React app → built into static files Terraform provisions: S3 bucket (hosting) CloudFront distribution (CDN) GitHub Actions: Build React app Upload to S3 Invalidate CloudFront cache 📁 Project Structure ⚙️ Step 1: Terraform Module Design Instead of writing everything in one file, I used modular Terraform. Example modules: 🔗 How Modules Are Used (Root Configuration) This snippet shows how the root module calls the S3 and CloudFront modules to provision infrastructure. module "s3_static_site" { source = "./modules/s3-static-site" bucket_name = var.bucket_name } module "cloudfront" { source = "./modules/cloudfront-distribution"