Book Image

Practical Cloud-Native Java Development with MicroProfile

By : Emily Jiang, Andrew McCright, John Alcorn, David Chan, Alasdair Nottingham
Book Image

Practical Cloud-Native Java Development with MicroProfile

By: Emily Jiang, Andrew McCright, John Alcorn, David Chan, Alasdair Nottingham

Overview of this book

In this cloud-native era, most applications are deployed in a cloud environment that is public, private, or a combination of both. To ensure that your application performs well in the cloud, you need to build an application that is cloud native. MicroProfile is one of the most popular frameworks for building cloud-native applications, and fits well with Kubernetes. As an open standard technology, MicroProfile helps improve application portability across all of MicroProfile's implementations. Practical Cloud-Native Java Development with MicroProfile is a comprehensive guide that helps you explore the advanced features and use cases of a variety of Jakarta and MicroProfile specifications. You'll start by learning how to develop a real-world stock trader application, and then move on to enhancing the application and adding day-2 operation considerations. You'll gradually advance to packaging and deploying the application. The book demonstrates the complete process of development through to deployment and concludes by showing you how to monitor the application's performance in the cloud. By the end of this book, you will master MicroProfile's latest features and be able to build fast and efficient cloud-native applications.
Table of Contents (18 chapters)
Section 1: Cloud-Native Applications
Section 2: MicroProfile 4.1 Deep Dive
Section 3: End-to-End Project Using MicroProfile
Section 4: MicroProfile Standalone Specifications and the Future

Chapter 3: Introducing the IBM Stock Trader Cloud-Native Application

Throughout this book, we'll be using an example application known as IBM Stock Trader to demonstrate various concepts and techniques. This open source example is intended to show people how to develop, deploy, and use a typical cloud-native application that is composed of various microservices and leverages various external services such as databases, messaging systems, and internet services. All microservices are containerized and deployed (via an operator) to a Kubernetes cluster such as the OpenShift Container Platform.

As the name implies, the IBM Stock Trader example exists in the financial domain, simulating a brokerage application that tracks the stocks each customer has purchased in their portfolio. While it doesn't actually buy or sell anything, it does look up current actual prices of specified stocks and computes an overall portfolio value that maps to a customer loyalty level. It also simulates...