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)
More Resources

Introduction to REST

The REST acronym stands for Representational State Transfer. It's an architectural style and a design for network-based software. It describes how one system can communicate a state with another. This fits perfectly well into the microservice world. As you will remember from Chapter 3, Working with Microservices, the software applications based on the microservices architecture is a bunch of separated, independent services talking to each other.

There are some concepts in REST that we need to understand, before we go further:

  • resource: This is the main concept in the REST architecture. Any information can be a resource. A bank account, a person, an image, a book. A representation of a resource must be stateless
  • representation: A specific way a resource can be represented. For example, a bank account resource can be represented using JSON, XML, or HTML...