Alex Soto Bueno - Quarkus Cookbook: Kubernetes-Optimized Java Solutions

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by Alex Soto Bueno and Jason Porter

Copyright 2020 Alex Soto Bueno and Jason Porter. All rights reserved.

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978-1-492-06265-3

[LSI]

Red Hat, and JBoss before it, have been at the forefront of helping to shape the evolution of enterprise Java since the early 2000s. With an emphasis on open source and growing communities, these two companies have collaborated with other vendors, consultants, individuals, and standards organizations to ensure Java and some of its most popular frameworks have been developed to address new technological waves and to keep Java one of the most popular programming languages around. As a result, you can find Java being used in areas as diverse as IoT applications, web services, health care, and financial services. Yet when the cloud came along it presented some problems that traditional Java frameworks and even the Java Virtual Machine struggled to match.

Red Hat was the first vendor to marry a Java Enterprise Edition application server with the cloud through OpenShift. It continued this trend with all of its Java portfolio of projects and products. However, when the world moved to Linux Containers and then to Kubernetes, the entire application development paradigm for all programming languages moved toward immutability. Java has always been about enabling dynamic applications, and the frameworks built over many years take advantage of that aspect. Addressing this problem space and ensuring that Java remains a viable option for cloud developers requires a change of mindset, new tools, and new frameworks .

When we started to work on Quarkus in early 2018, the team had carte blanche to go back to the drawing board and consider all options. Working with various groups, including the Red Hat OpenJDK team, and seeing the opportunity that GraalVM represented for creating immutable native images from Java, resulted in Quarkus. In the intervening years, Quarkus has taken the Java community by storm and has grown faster and become more popular than we could have imagined back then. We firmly believe that it represents a view of the future for Enterprise Java in the Kubernetes clouds. Weve re-architected many of the most popular Java frameworks and have written others from scratch, all with an eye toward ensuring that Quarkus is the preeminent Kubernetes-native approach for Java developers, including for new areas such as Serverless and Knative.

The authors of this book have been actively involved with Quarkus and have been part of the team for quite a while. They have insights into developing applications with Quarkus that few others have today. Theyve written this book to take advantage of their experiences and to help the reader build Quarkus applications and get Developer Joy! Whether youre new to Quarkus or already familiar with it, you will find this book to be exactly what you need. It covers a lot of ground, including taking you through the following: basic Quarkus applications; testing those applications; adding advanced concepts from Eclipse MicroProfile; reactive programming, which is a core part of Quarkus and not just an afterthought; how to build with Spring; and more. This is a great book to add to your developer library and use to increase your knowledge and skills. Youll enjoy working your way through it and will hopefully find yourself wanting to learn more and join the growing Quarkus community. Enjoy! Onward!

Dr. Mark Little
VP, Engineering, JBoss CTO