Multiregion Terraform

Example multi-region AWS Terraform application

Blockchain & Cloud ComputingHCLMIT

Abstract

Multiregion Terraform is an open-source Blockchain & Cloud Computing project. Example multi-region AWS Terraform application. Amazon has 18 data centers with ~56 availability zones spread around the world. This Terraform application launches EC2 instances in every possible zone, and ties them together into a single domain name that routes pings to the closest instance. It is built using HCL, Terraform, AWS. Key capabilities include: Single main.tf with a module instance for each Amazon's [14 regions][1]; Creates an EC2 instance in every region and availability zone; Creates two Route 53 records (A and AAAA) with [latency based routing][2] to all EC2 instances. The complete source code is publicly available on GitHub under the MIT License, making it a useful reference for students building a Blockchain & Cloud Computing mini project or final-year project.

1. Introduction

Amazon has 18 data centers with ~56 availability zones spread around the world. This Terraform application launches EC2 instances in every possible zone, and ties them together into a single domain name that routes pings to the closest instance.

2. Objective

Example multi-region AWS Terraform application

This project demonstrates how HCL, Terraform, AWS can be applied to a real-world Blockchain & Cloud Computing problem.

3. Key Features / Modules

  • Single main.tf with a module instance for each Amazon's [14 regions][1]
  • Creates an EC2 instance in every region and availability zone
  • Creates two Route 53 records (A and AAAA) with [latency based routing][2] to all EC2 instances
  • All instances allow ICMP Echo Request (ping) from 0.0.0.0/0
  • Supports IPv4 _and_ IPv6

4. Technology Stack

HCLTerraformAWS

5. System Requirements

General requirements for this technology stack — check the README for exact versions.

  • Terraform CLI
  • Cloud provider account (e.g. AWS) with CLI configured
  • Git (to clone the repository)

6. Installation & Setup

git clone https://github.com/kung-foo/multiregion-terraform.git
cd multiregion-terraform

Full setup instructions are in the project README.

7. Future Enhancements

Suggested extensions you can add to make this your own project.

  • Add a CI/CD pipeline with GitHub Actions
  • Deploy to a public test network or cloud free tier
  • Add monitoring and cost alerts

8. Viva / Review Questions

Common questions examiners ask for projects in this domain.

  1. Why does this problem need a blockchain or cloud-native design?
  2. Explain the smart contract / infrastructure components and how they interact.
  3. How are gas costs or cloud costs kept under control?
  4. How is the system secured (keys, IAM, access control)?
  5. How would the solution scale to many more users?

9. Source Code & License

This project is developed by kung-foo and published on GitHub under the MIT License. Please follow the license terms and credit the original author when you use or modify this code.

View Source on GitHubDownload ZIP

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