Book Image

Spring Microservices

By : Rajesh R V
Book Image

Spring Microservices

By: Rajesh R V

Overview of this book

The Spring Framework is an application framework and inversion of the control container for the Java platform. The framework's core features can be used by any Java application, but there are extensions to build web applications on top of the Java EE platform. This book will help you implement the microservice architecture in Spring Framework, Spring Boot, and Spring Cloud. Written to the latest specifications of Spring, you'll be able to build modern, Internet-scale Java applications in no time. We would start off with the guidelines to implement responsive microservices at scale. We will then deep dive into Spring Boot, Spring Cloud, Docker, Mesos, and Marathon. Next you will understand how Spring Boot is used to deploy autonomous services, server-less by removing the need to have a heavy-weight application server. Later you will learn how to go further by deploying your microservices to Docker and manage it with Mesos. By the end of the book, you'll will gain more clarity on how to implement microservices using Spring Framework and use them in Internet-scale deployments through real-world examples.
Table of Contents (18 chapters)
Spring Microservices
Credits
About the Author
Acknowledgments
About the Reviewer
www.PacktPub.com
Preface
Index

Microservices and containers


There is no direct relationship between microservices and containers. Microservices can run without containers, and containers can run monolithic applications. However, there is a sweet spot between microservices and containers.

Containers are good for monolithic applications, but the complexities and the size of the monolith application may kill some of the benefits of the containers. For example, spinning new containers quickly may not be easy with monolithic applications. In addition to this, monolithic applications generally have local environment dependencies, such as the local disk, stovepipe dependencies with other systems, and so on. Such applications are difficult to manage with container technologies. This is where microservices go hand in hand with containers.

The following diagram shows three polyglot microservices running on the same host machine and sharing the same operating system but abstracting the runtime environment:

The real advantage of containers...