Multi-AZ & Multi-Region Deployment Using Terraform Packer

This project showcases how to deploy AWS infrastructure across multiple Availability Zones (AZs) and Regions using Terraform. This approach enhances fault tolerance, high availability, and disaster recovery while optimizing application performance across different geographical locations.

---

Project Overview

The goal of this project is to automate infrastructure deployment across multiple AWS regions using Terraform and Packer. By leveraging Golden AMIs, security best practices, and automated provisioning, this setup ensures:

• ✅ High availability – Applications remain operational even during regional failures.
• ✅ Disaster recovery – Quick failover to alternate regions in case of an outage.
• ✅ Reduced latency – Users are routed to the nearest available region for better performance.

---

Responsibilities & Achievements

✔️ Built Golden AMIs using Packer – Pre-configured with Apache & security patches.
✔️ Automated deployments with Terraform & shell scripting, reducing manual effort by 50%.
✔️ Implemented security best practices – IAM role-based access, EBS encryption, and AWS Secrets Manager for sensitive data.
✔️ Enabled S3 versioning & MFA Delete to protect Packer images from accidental or malicious deletion.
✔️ Deployed immutable infrastructure – Ensuring consistent, repeatable, and secure EC2 instances across regions.

---

Technical Implementation

1️⃣ Packer – Golden AMI Creation

• Packer automates the creation of Golden AMIs with pre-installed Apache and security updates.
• These AMIs are stored in Amazon S3, with versioning and MFA Delete enabled for additional security.

2️⃣ Terraform – Multi-Region Deployment

• Terraform is used to provision and manage infrastructure across multiple AWS regions.
• The configuration includes:
  • ✅ EC2 instances launched from Packer-built AMIs
  • ✅ Virtual Private Clouds (VPCs) & Subnets
  • ✅ Security Groups enforcing least privilege access
  • ✅ Load Balancers & Route 53 for intelligent traffic routing

3️⃣ Multi-Region & High Availability Architecture

• Identical infrastructure stacks are deployed in multiple AWS regions.
• Route 53 dynamically routes traffic based on latency or health checks.
• In case of a regional outage, traffic is automatically redirected to a healthy region.

4️⃣ Security Enhancements

• 🔒 IAM Roles & Least Privilege Access – Secure access to AWS resources.
• 🔒 EBS Encryption – Ensuring data security at rest.
• 🔒 AWS Secrets Manager – Safeguarding sensitive information like API keys.
• 🔒 S3 Versioning & MFA Delete – Protecting AMIs from accidental deletion.

---

Technologies Used

• 🟢 AWS Services: EC2, VPC, S3, IAM, Route 53, Secrets Manager
• 🟢 Infrastructure as Code (IaC): Terraform
• 🟢 Image Management: Packer
• 🟢 Automation & Scripting: Python, Bash
• 🟢 Version Control: Git

---

Key Benefits

✅ High Availability – Ensures uptime even during failures.
✅ Disaster Recovery – Seamless failover across AWS regions.
✅ Optimized Performance – Reduced latency by routing users to the nearest region.
✅ Scalability – Easily scale infrastructure in any region as needed.
✅ Fully Automated – Terraform eliminates manual deployment, ensuring consistency.

---

Author

👤 Vishwas Sunkari
🔗 LinkedIn
🔗 GitHub