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

From Java EE to MicroProfile

Java Enterprise Edition (EE) has reached an outstanding level of maturity and has a huge adoption in the IT Enterprise. A Java EE application is typically packaged as a monolithic application and deployed in an application server, which can host multiples of them.

A monolithic application can be thought of as a self-contained application that includes both the user interface and the business components that are required to run the applications.

This approach has been widely used for years. The reason is simple: monolithic applications are conceptually simple to develop and package because everything is contained in a bundle and can be edited with a single IDE. Also, scaling monolithic applications is simple: all you need to do is scale a single component.

As a result, the traditional way of coding enterprise applications produced an extremely large...