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

Deploying cloud-native applications to Kubernetes

Kubernetes started as a project in Google to allow them to manage software at scale. It has since moved to become an open source project managed by the Cloud Native Computing Foundation (CNCF) and has contributors from all over the industry. Every major (and most minor) public cloud provider uses Kubernetes to manage the deployment of containers. There are also private cloud products such as Red Hat OpenShift that provide a distribution of Kubernetes for deployment either on-premises or on a public cloud but dedicated to a single company.

A Kubernetes deployment is known as a cluster. To run containers and provide a highly available, scalable environment a cluster consists of a control plane and a set of key resources that provide it with the ability to run or manage containers, scale them, and keep the containers running in the event of any failures. When running a container in Kubernetes, the container is placed in a Pod, which...