Book Image

Hands-On Cloud-Native Microservices with Jakarta EE

By : Luigi Fugaro, Mauro Vocale
Book Image

Hands-On Cloud-Native Microservices with Jakarta EE

By: Luigi Fugaro, Mauro Vocale

Overview of this book

Businesses today are evolving rapidly, and developers now face the challenge of building applications that are resilient, flexible, and native to the cloud. To achieve this, you'll need to be aware of the environment, tools, and resources that you're coding against. The book will begin by introducing you to cloud-native architecture and simplifying the major concepts. You'll learn to build microservices in Jakarta EE using MicroProfile with Thorntail and Narayana LRA. You'll then delve into cloud-native application x-rays, understanding the MicroProfile specification and the implementation/testing of microservices. As you progress further, you'll focus on continuous integration and continuous delivery, in addition to learning how to dockerize your services. You'll also cover concepts and techniques relating to security, monitoring, and troubleshooting problems that might occur with applications after you've written them. By the end of this book, you will be equipped with the skills you need to build highly resilient applications using cloud-native microservice architecture.
Table of Contents (14 chapters)

Sidecar

The first thing that comes to mind when we say the word sidecar is a pilot on a motorbike who has their co-pilot in a small capsule attached to the motorbike itself.

The same kind of suggestion can be applied to software. Suppose you have an application with a component attached to it. However, in software context, the sidecar is a component that can be plugged and unplugged from the main application, because it must be isolated and cannot impact the application in case it starts misbehaving. This will be something that's collateral to the application. The most used scenarios for a sidecar are monitoring, logging, metrics, and so on.

A sidecar container should be configurable so that it can be plugged into any application—it doesn't have to be just a single application, either. The best match for sidecars are containers. The application container can be...