Terraform Multi-Environment AWS Infrastructure

This repository contains Terraform configurations for deploying a multi-environment infrastructure on AWS. The project automates the deployment of development, staging, and production environments, including features like load balancing, auto-scaling, and secure secret management.

Project Overview

This project sets up a cloud-based infrastructure using AWS and Terraform, focusing on:

• Multiple environments (development, staging, production).
• Vault for secret management.
• Consul for service discovery and networking.
• Auto-scaling EC2 instances for fault tolerance.
• Application Load Balancer (ALB) for traffic distribution.
• S3 for static content hosting.
• Route 53 for DNS routing.

Features

• Multi-environment setup: Deploy separate environments for development, staging, and production.
• Terraform automation: Infrastructure as code, using Terraform for provisioning and managing AWS resources.
• Vault integration: Secure management of secrets across environments.
• Consul integration: Service discovery and networking within your AWS VPC.
• Auto-scaling: Automatically scale EC2 instances based on traffic.
• Load balancing: Distribute incoming traffic efficiently with an AWS Application Load Balancer (ALB).

Task List

• Setup multi-environment infrastructure (development, staging, production)
• Create S3 buckets for static website hosting
• Configure Route 53 for DNS routing
• Setup VPC with public and private subnets
• Configure AWS Lambda for serverless backend logic
• Implement Application Load Balancer (ALB) with auto-scaling EC2 instances
• Integrate Consul for service discovery
• Integrate Vault for secret management
• Complete deployment for all environments and test

Key Terraform Files

• main.tf: Defines the primary infrastructure components like VPC, EC2, Load Balancers, and S3.
• variables.tf: Declares the input variables used for customizing the infrastructure.
• terraform.tfvars: Specifies the actual values for the declared variables.
• terraform.tfstate: Maintains the state of the deployed infrastructure.
• modules/: Contains reusable Terraform modules for common resources (e.g., EC2, ALB, S3).

Prerequisites

• Terraform: Install Terraform to manage infrastructure as code.
• AWS CLI: Install and configure AWS CLI with your credentials.
• Consul & Vault: Ensure you have Consul and Vault services available or set up as part of your infrastructure.

Setup Instructions

1. Clone the repository

git clone https://github.com/AliDavoodi98/terraform-multi-env-infra.git
cd terraform-multi-env-infra/Terraform

2. Configure AWS Credentials Make sure your AWS CLI is configured properly:

aws configure

3. Customize Variables Edit the terraform.tfvars file to configure values for your AWS setup (e.g., region, instance size, VPC CIDR blocks, etc.).

aws_region = "us-east-1"
instance_type = "t2.micro"

4. Initialize and Apply Terraform

terraform init
terraform apply

This will provision all the resources specified in the Terraform files, including VPC, EC2 instances, Vault, Consul, ALB, and more.

5. Destroy the Infrastructure To clean up and remove the deployed infrastructure, run:

terraform destroy

Note

Ensure that terraform.tfstate and terraform.tfstate.backup are securely stored, especially if sharing the repository publicly. If you’re storing sensitive information in terraform.tfvars, avoid pushing it to the repository by adding it to .gitignore.

Note

Always remember to destroy resources when they are no longer in use to avoid unnecessary costs.