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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API versioning

Kubernetes grows continuously. Its features change and this results in the API changing as well. To deal with those changes and to not break compatibility with existing clients over an extended period of time, Kubernetes supports multiple API versions, each with a different API path, such as /api/v1 or /apis/extensions/v1beta1. There are three API levels in the Kubernetes API specification: alpha, beta, and stable. Let's get to know the difference.


The alpha version level is disabled by default, as with the other software, an alpha version should be considered as buggy and not production ready. Also, you should note that any featured introduced in the alpha version might not always be available later...