Demystifying Web Application Deployment on AWS

In this digital era, the demand for web applications is growing rapidly. To meet this demand, developers often use deployment platforms like Vercel, Netlify, and Render. However, understanding the building blocks behind these platforms can empower developers, especially those in North East India, to have more control over their applications' cost, security, and scaling. This article aims to guide you through the process of deploying a web application on Amazon Web Services (AWS), focusing on the core AWS services involved.

What You Will Build

By the end of this guide, you will have a classic three-tier web application: a browser-based frontend, a backend API, and a database, all communicating over a network. The backend will be built using Express/Node.js on an Amazon Elastic Compute Cloud (EC2) instance, the database will be PostgreSQL on Amazon Relational Database Service (RDS), and the frontend will be React/Vite hosted on Amazon Simple Storage Service (S3) with optional Amazon CloudFront for content delivery network (CDN) and HTTPS.

Prerequisites

While this guide does not require DevOps expertise, familiarity with running basic terminal commands and editing configuration files is necessary. If you have ever used npm install, you are well-equipped to follow along.

Mental Map

AWS can seem overwhelming with its jargon such as Virtual Private Clouds (VPCs), security groups, and subnets. This section provides a simplified overview of the flow when a user opens your application in a browser. Understanding this flow will make navigating the AWS screens less daunting.

AWS Free Tier Basics

AWS can be cost-effective if you utilize the free tier, but it can also lead to unexpected bills if you inadvertently provision or leave resources running. This section discusses the key factors affecting cost for this tutorial and what to watch out for.

Environment Variables

Environment variables are configuration values that reside outside your code, such as ports, database URLs, and allowed origins. They help keep sensitive information like database passwords out of your Git repository and enable the same code to run in different environments with different settings.

Relevance to North East India and Broader Indian Context

As the digital landscape in India continues to evolve, understanding the intricacies of cloud platforms like AWS becomes increasingly important for developers in North East India. This guide provides a practical approach to deploying web applications on AWS, empowering developers to create and manage their applications more effectively.

Closing Thoughts

By following this guide, you will gain a deeper understanding of how to deploy web applications on AWS, allowing you to have more control over cost, security, and scaling. This knowledge can be invaluable for developers in North East India looking to create and manage their applications more effectively in the ever-growing digital landscape.