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

Making calls

Making a call to the operation exposed from the service can be done using any tool or library that can execute the HTTP requests. The first obvious choice would be just a web browser. But a web browser is convenient only for executing GET requests (as for getting a list of books from our bookstore service). If you need to execute other methods such as POST or PUT or provide additional request parameters, header values, and so on, you will need to use some alternatives. The first choice could be cURL, a command-line tool for transferring data using various protocols. Let's look at other options we have.

Spring RestTemplate

If you need to call a service from another service, you will need a HTTP client. Spring...