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

Creating and inspecting a network

Let's create a network. We are going to call our network myNetwork. Execute the following command from the shell or command line:

$ docker network create myNetwork  

This is the simplest form of the command, and yet it will probably be used the most often. It takes a default driver (we haven't used any option to specify a driver, we will just use the default one, which is bridge). As the output, Docker will print out the identifier of the newly created network:

You will later use this identifier to refer to this network when connecting containers to it or inspecting the network's properties. The last parameter of the command is the network's name, which is a lot more convenient and easier to remember than the ID. The network name in our case is myNetwork. The docker network create command takes more parameters, as shown in...