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

Building the Stock Trader container images

As discussed in previous sections, we use Open Liberty as the application server hosting most of the Stock Trader microservices. And we use Docker to produce the container images that ultimately get run in a Kubernetes cluster such as the OpenShift Container Platform cluster.

The following subsections will describe how we configure the server, and how we package it up into a container image.

Open Liberty

There are a variety of MicroProfile compliant Java application servers on the market. As a reminder from Chapter 3, Introducing the IBM Stock Trader Cloud-Native Application, most of the Stock Trader microservices (Trader, Broker, Broker-Query, Portfolio, Account, Trade History, Messaging, Notification-Slack, Collector, and Looper) are based on the open source Open Liberty application server. For variety, there are three other microservices based on different servers:

  • Stock Quote, which runs on Red Hat's Quarkus.
  • ...