Book Image

Docker and Kubernetes for Java Developers

By : Jarosław Krochmalski
Book Image

Docker and Kubernetes for Java Developers

By: Jarosław Krochmalski

Overview of this book

Imagine creating and testing Java EE applications on Apache Tomcat Server or Wildfly Application server in minutes along with deploying and managing Java applications swiftly. Sounds too good to be true? But you have a reason to cheer as such scenarios are only possible by leveraging Docker and Kubernetes. This book will start by introducing Docker and delve deep into its networking and persistent storage concepts. You will then proceed to learn how to refactor monolith application into separate services by building an application and then packaging it into Docker containers. Next, you will create an image containing Java Enterprise Application and later run it using Docker. Moving on, the book will focus on Kubernetes and its features and you will learn to deploy a Java application to Kubernetes using Maven and monitor a Java application in production. By the end of the book, you will get hands-on with some more advanced topics to further extend your knowledge about Docker and Kubernetes.
Table of Contents (12 chapters)
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An introduction to microservices

By definition, microservices, also known as the Microservice Architecture (MSA), is an architectural style and design pattern which says that an application should consist of a collection of loosely-coupled services. This architecture decomposes business domain models into smaller, consistent pieces implemented by services. In other words, each of the services will have its own responsibilities, independent of others, each one of them will provide a specific functionality.

These services should be isolated and autonomous. Yet, they of course need to communicate to provide some piece of business functionality. They usually communicate using REST exposures or by publishing and subscribing events in the publish/subscribe way.

The best way of explaining the reasoning behind the idea of microservices is to compare them with an old, traditional approach...