Book Image

Serverless Design Patterns and Best Practices

By : Brian Zambrano
Book Image

Serverless Design Patterns and Best Practices

By: Brian Zambrano

Overview of this book

Serverless applications handle many problems that developers face when running systems and servers. The serverless pay-per-invocation model can also result in drastic cost savings, contributing to its popularity. While it's simple to create a basic serverless application, it's critical to structure your software correctly to ensure it continues to succeed as it grows. Serverless Design Patterns and Best Practices presents patterns that can be adapted to run in a serverless environment. You will learn how to develop applications that are scalable, fault tolerant, and well-tested. The book begins with an introduction to the different design pattern categories available for serverless applications. You will learn thetrade-offs between GraphQL and REST and how they fare regarding overall application design in a serverless ecosystem. The book will also show you how to migrate an existing API to a serverless backend using AWS API Gateway. You will learn how to build event-driven applications using queuing and streaming systems, such as AWS Simple Queuing Service (SQS) and AWS Kinesis. Patterns for data-intensive serverless application are also explained, including the lambda architecture and MapReduce. This book will equip you with the knowledge and skills you need to develop scalable and resilient serverless applications confidently.
Table of Contents (18 chapters)
Title Page
Copyright and Credits
Dedication
Packt Upsell
Contributors
Preface
Index

Chapter 9. Deployment and CI/CD Patterns

One of the big advantages of serverless architectures is the ease, speed, and agility with which you can develop and deploy your application. While the various serverless frameworks out there give you tools to manage your application's lifecycle, there are still many questions to answer when it comes to managing deployments and environments. Additionally, the question of unit tests is sometimes more difficult to answer since serverless architectures often use managed services such as databases, queues, and the like.

In this chapter, you will learn deployment tooling, techniques, and considerations. We will also discuss continuous integration (CI) and continuous delivery (CD) systems and how they hook into unit testing and automated deployments. 

By the end of this chapter, you will have learned the following:

  • Deployment options and techniques for serverless applications
  • The landscape of CI/CD systems and how they work with serverless applications
  • General...