Book Image

Hands-On Cloud-Native Applications with Java and Quarkus

By : Francesco Marchioni
Book Image

Hands-On Cloud-Native Applications with Java and Quarkus

By: Francesco Marchioni

Overview of this book

Quarkus is a new Kubernetes-native framework that allows Java developers to combine the power of containers, microservices, and cloud-native to build reliable applications. The book is a development guide that will teach you how to build Java-native applications using Quarkus and GraalVM. We start by learning about the basic concepts of a cloud-native application and its advantages over standard enterprise applications. Then we will quickly move on to application development, by installing the tooling required to build our first application on Quarkus. Next, we’ll learn how to create a container-native image of our application and execute it in a Platform-as-a-Service environment such as Minishift. Later, we will build a complete real-world application that will use REST and the Contexts and Dependency injection stack with a web frontend. We will also learn how to add database persistence to our application using PostgreSQL. We will learn how to work with various APIs available to?Quarkus?such as Camel, Eclipse MicroProfile, and Spring DI. Towards the end, we will learn advanced development techniques such as securing applications, application configuration, and working with non-blocking programming models using Vert.x. By the end of this book, you will be proficient with all the components of Quarkus and develop-blazing fast applications leveraging modern technology infrastructure.
Table of Contents (15 chapters)
Free Chapter
Section 1: Getting Started with Quarkus
Section 2: Building Applications with Quarkus
Section 3: Advanced Development Tactics

Securing Quarkus services with Elytron

Elytron is a security framework that has been created to unify the security aspects of WildFly and JBoss' Enterprise Application Platform (EAP). It comes as a consequence that this framework has been initially designed for monolithic applications in order to provide coverage on every aspect of security. What is the advantage of using Elytron in a container-ready native platform such as Quarkus?

Although it may look like an oversimplified solution to securing your assets, it can prove to be advantageous when developing or testing applications that include security roles. Out of the box, Quarkus provides an implementation of a file-based security realm in order to provide role-based access control (RBAC) to our basic endpoints with minimal configuration requirements.

In terms of libraries, at the time of writing this book, there are three...