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)
11
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Summary

In this chapter, we looked at how to get started with Docker containers and packaging Java applications. We can do it manually by hand using the docker build command and a Dockerfile or we can use Maven to automate things. For Java developers, Docker helps isolate our apps in a clean environment. Isolation is important because it reduces the complexity of the software environment we're using. The Fabric8 Maven Docker plugin is a great tool which we can use to automate our image builds using Maven, especially when dealing with Java applications. No more writing Dockerfiles by hand, we just configure the plugin using the extensive set of options and we are done. Additionally, having this working with Maven allows us to easily incorporate Docker builds into our existing development flows, as continuous delivery using Jenkins, for example. In Chapter 6, Running Containers...