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

Testing and Troubleshooting AWS CDK Applications

Testing is a crucial part of building reliable and performant applications, and developing CDK applications is no exception to that. If you speak to the developers working with me (Mark), they will make jokes about my obsession with writing tests. We don’t even necessarily enjoy the process of writing tests, although we must admit that watching green ticks appear when test scenarios are run is fun.

In this chapter, we will dive into the world of testing in the context of AWS CDK applications. Automated testing is essential for running a sanity check on your application and ensuring that the functionality and state of your application are as expected, even when new components are added or changed. We will focus on automated testing since manual testing can be time-consuming and error-prone, especially as CDK apps become more complex.

The primary purpose of automated testing is to run through a checklist of tests as quickly...