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

Deploying your service on Kubernetes


Containers make services portable by allowing you to package code, dependencies, and the runtime environment together in one artifact. Deploying containers is generally easier than deploying applications that do not run in containers. The host does not need to have any special configuration or state; it just needs to be able to execute the container runtime. The ability to deploy one or more containers on a single host gave rise to another challenge when managing production environments—scheduling and orchestrating containers to run on specific hosts and manage scaling.

Kubernetes is an open source container orchestration tool. It is responsible for scheduling, managing, and scaling your containerized applications. With Kubernetes, you do not need to worry about deploying your container to one or more specific hosts. Instead, you declare what resources your container needs and let Kubernetes decide how to do the work (what host the container runs on, what...