Book Image

Microservices Development Cookbook

By : Paul Osman
Book Image

Microservices Development Cookbook

By: Paul Osman

Overview of this book

Microservices have become a popular choice for building distributed systems that power modern web and mobile apps. They enable you to deploy apps as a suite of independently deployable, modular, and scalable services. With over 70 practical, self-contained tutorials, the book examines common pain points during development and best practices for creating distributed microservices. Each recipe addresses a specific problem and offers a proven, best-practice solution with insights into how it works, so you can copy the code and configuration files and modify them for your own needs. You’ll start by understanding microservice architecture. Next, you'll learn to transition from a traditional monolithic app to a suite of small services that interact to ensure your client apps are running seamlessly. The book will then guide you through the patterns you can use to organize services, so you can optimize request handling and processing. In addition this, you’ll understand how to handle service-to-service interactions. As you progress, you’ll get up to speed with securing microservices and adding monitoring to debug problems. Finally, you’ll cover fault-tolerance and reliability patterns that help you use microservices to isolate failures in your apps. By the end of this book, you’ll have the skills you need to work with a team to break a large, monolithic codebase into independently deployable and scalable microservices.
Table of Contents (16 chapters)
Title Page
Copyright and Credits
Packt Upsell
Contributors
Preface
Index

Test releases with canary deployments


Improvements in best practices for deploying have greatly improved the stability of deploys over the years. Automating the repeatable steps, standardizing the way our application interacts with the runtime environment, and packaging our application code with the runtime environment have all made deployments safer and easier than they used to be.

Introducing new code to a production environment is not without risk, however. All the techniques discussed in this chapter help prevent predictable mistakes, but they do nothing to prevent actual software bugs from negatively impacting users of the software we write. Canary deployment is a technique for reducing this risk and increasing confidence in new code that is being deployed to production.

With a canary deployment, you begin by shipping your code to a small percentage of production traffic. You can then monitor metrics, logs, traces, or whatever other tools allow you to observe how your software is working...