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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What this book covers

Chapter 1, Introduction to Docker, introduces the reasoning behind Docker and presents the differences between Docker and traditional virtualization. The chapter also explains basic Docker concepts, such as images, containers, and Dockerfiles.

Chapter 2, Networking and Persistent Storage, explains how networking and persistent storage work in Docker containers.

Chapter 3, Working with Microservices, presents an overview of what microservices are and explains their advantages in comparison to monolithic architectures.

Chapter 4, Creating Java Microservices, explores a recipe for quickly constructing Java microservice, by utilizing either Java EE7 or the Spring Boot.

Chapter 5, Creating Images with Java Applications, teaches how to package the Java microservices into Docker images, either manually or from the Maven build file.

Chapter 6, Running Containers with Java Applications, shows how to run a containerized Java application using Docker.

Chapter 7, Introduction to Kubernetes, introduces the core concepts of Kubernetes, such as Pods, nodes, services, and deployments.

Chapter 8, Using Kubernetes with Java, shows how to deploy Java microservices, packaged as a Docker image, on the local Kubernetes cluster.

Chapter 9, Working with Kubernetes API, shows how the Kubernetes API can be used to automate the creation of Kubernetes objects such as services or deployments. This chapter gives examples of how to use the API to get information about the cluster's state.

Chapter 10, Deploying Java on Kubernetes in the Cloud, shows the reader how to configure Amazon AWS EC2 instances to make them suitable to run a Kubernetes cluster. This chapter also gives precise instructions on how to create a Kubernetes cluster on the Amazon AWS cloud.

Chapter 11, More Resources, explores how Java and Kubernetes point the reader to additional resources available on the internet that are of high quality, to further extend knowledge about Docker and Kubernetes.