Book Image

Building Microservices with Go

By : Nic Jackson
Book Image

Building Microservices with Go

By: Nic Jackson

Overview of this book

Microservice architecture is sweeping the world as the de facto pattern to build web-based applications. Golang is a language particularly well suited to building them. Its strong community, encouragement of idiomatic style, and statically-linked binary artifacts make integrating it with other technologies and managing microservices at scale consistent and intuitive. This book will teach you the common patterns and practices, showing you how to apply these using the Go programming language. It will teach you the fundamental concepts of architectural design and RESTful communication, and show you patterns that provide manageable code that is supportable in development and at scale in production. We will provide you with examples on how to put these concepts and patterns into practice with Go. Whether you are planning a new application or working in an existing monolith, this book will explain and illustrate with practical examples how teams of all sizes can start solving problems with microservices. It will help you understand Docker and Docker-Compose and how it can be used to isolate microservice dependencies and build environments. We finish off by showing you various techniques to monitor, test, and secure your microservices. By the end, you will know the benefits of system resilience of a microservice and the advantages of Go stack.
Table of Contents (18 chapters)
Title Page
Credits
About the Author
About the Reviewers
www.PacktPub.com
Customer Feedback
Preface
Index

What is container orchestration?


Simply, container orchestration is the process of running one or more instances of an application. Think of the common understanding of an orchestra: a group of musicians who work together to play a piece of music. The containers in your application are like the musicians in the orchestra. You may have specialist containers, of which there are low numbers of instances, such as the percussionists; or you may have many instances, such as the strings section. In an orchestra, the conductor keeps everything in time and ensures that the relevant musicians are playing the right music at the right time. In the world of containers, we have a scheduler; the scheduler is responsible for ensuring that the correct number of containers are running at any one time and that these containers are distributed correctly across the nodes in the cluster to ensure high availability. The scheduler, like a conductor, is also responsible for ensuring that the right instruments play...