Infrastructure as Code Project with Terraform

This project demonstrates the use of Terraform to manage and provision cloud infrastructure on AWS. It includes configurations for a Virtual Private Cloud (VPC), Application Load Balancer (ALB), Auto Scaling Group (ASG), and Relational Database Service (RDS).

Documentation

Full documentation of this project can be found at samuellincoln.com/projects/infra-as-code

Table of Contents

• Project Overview
• Architecture
• Modules
• Prerequisites
• Setup and Deployment
• Variables
• Security Considerations
• License

Project Overview

This project is designed to showcase a scalable and secure cloud infrastructure using Terraform. It leverages AWS services to create a robust environment suitable for hosting web applications.

Architecture

The architecture includes:

• VPC: A Virtual Private Cloud with public and private subnets across two availability zones.
• ALB: An Application Load Balancer to distribute incoming traffic across multiple instances.
• ASG: An Auto Scaling Group to ensure the application scales based on demand.
• RDS: A managed MySQL database instance for persistent data storage.

Modules

The project is organized into the following modules:

• VPC Module: Manages the network infrastructure.
• ALB Module: Configures the load balancer and its security settings.
• ASG Module: Sets up the auto-scaling group and launch templates.
• RDS Module: Provisions the database instance and its subnet group.

Prerequisites

• Terraform installed on your local machine.
• An AWS account with appropriate permissions to create resources.
• AWS CLI configured with your credentials.

Setup and Deployment

1. Clone the Repository:

   git clone https://github.com/yourusername/terraform-iac-project.git
   cd terraform-iac-project

2. Initialize Terraform:

   terraform init

3. Plan the Deployment:

   terraform plan

4. Apply the Configuration:

   terraform apply

5. Destroy the Infrastructure (when no longer needed):

   terraform destroy

Variables

The project uses several variables to customize the deployment. These are defined in the variables.tf files within each module. Sensitive information such as database credentials should be managed securely.

Security Considerations

• Ensure that your AWS credentials are stored securely and not hard-coded in the project files.
• Review and configure security groups to allow only necessary traffic.
• Use Terraform's state locking feature to prevent concurrent modifications.

License

Copyright © 2025 Samuel Lincoln. All rights reserved.