Book Image

AWS CDK in Practice

By : Mark Avdi, Leo Lam
Book Image

AWS CDK in Practice

By: Mark Avdi, Leo Lam

Overview of this book

As cloud applications are becoming more complex, multiple tools and services have emerged to cater to the challenges of running reliable solutions. Although infrastructure as code, containers, and orchestration tools, such as Kubernetes, have proved to be efficient in solving these challenges, AWS CDK represents a paradigm shift in building easily developed, extended, and maintained applications. With AWS CDK in Practice, you’ll start by setting up basic day-to-day infrastructure while understanding the new prospects that CDK offers. You’ll learn how to set up pipelines for building CDK applications on the cloud that are long-lasting, agile, and maintainable. You’ll also gain practical knowledge of container-based and serverless application development. Furthermore, you’ll discover how to leverage AWS CDK to build cloud solutions using code instead of configuration files. Finally, you’ll explore current community best practices for solving production issues when dealing with CDK applications. By the end of this book, you’ll have practical knowledge of CDK, and you’ll be able to leverage the power of AWS with code that is simple to write and maintain using AWS CDK.
Table of Contents (17 chapters)
Part 1: An Introduction to AWS CDK
Part 2: Practical Cloud Development with AWS CDK
Part 3: Serverless Development with AWS CDK
Part 4: Advanced Architectural Concepts

Complete Web Application Deployment with AWS CDK

In the previous chapter, we learned how to deploy a simple web service with AWS CDK by utilizing AWS ECS for hosting and DynamoDB as a database. We built a TODO application that created an API and a frontend React application. While we built a working full stack cloud application, there were a few problems with our deployment:

  • Neither the frontend nor the backend was secured via TLS
  • We had to copy over the API URL into the frontend and redeploy the stack to make things work
  • The frontend code was being directly served from S3 with no distributed content delivery mechanism

In addition to that, having DynamoDB as a database is somewhat cheat code. Not every web application can switch databases overnight. Perhaps you want to move the IaC part of an existing application to AWS CDK. What if this application’s database is in MySQL?

We will attempt to address these points in this chapter. In summary, in this...