AWS Networking Architecture with Terraform

🚀 Project Overview

This project provisions a secure, multi-tier AWS networking architecture using Terraform.
It demonstrates core cloud engineering concepts such as network isolation, routing, internet access control, and Infrastructure as Code (IaC).

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🏗️ Architecture

This project deploys:

• A custom VPC
• Public and Private Subnets across availability zones
• Internet Gateway (IGW) for public subnet access
• Route Tables and associations
• Security Groups for controlled inbound/outbound traffic

Architecture Diagram

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🧰 Tech Stack

• AWS
• Terraform
• AWS CLI
• Region: eu-west-1

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✨ Features

• Custom VPC creation
• Public and private subnet segmentation
• Internet Gateway for public routing
• Route tables controlling network traffic
• Security groups acting as virtual firewalls
• Fully reproducible IaC deployment

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⚙️ Deployment

Prerequisites

• AWS account
• AWS CLI configured
• Terraform installed (v1.13+)

Commands

cd infra/
terraform init
terraform validate
terraform plan
terraform apply
terraform destroy

📘 Technical Design

VPC

• Custom CIDR for structured IP allocation.

Subnets

• Public subnets for internet-facing resources
• Private subnets for internal workloads

Routing

• IGW for public outbound access
• Route tables define traffic flow

Security

• Security groups use least-privilege rules
• Controlled inbound/outbound traffic

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🧪 Testing

• terraform validate
• terraform fmt
• Manual validation in the AWS Console

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🐛 Challenges & Learnings

• Improved understanding of VPC, routing, and subnet design
• Learned to structure Terraform projects cleanly
• Discovered VSCode-based workflows for IaC development

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🔗 Resources

• Terraform Documentation
• AWS VPC Documentation

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📜 License

Authored by © Genesis Phillips