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)

Linux Containers

The Linux kernel is made up of several components and functionalities; the ones related to containers are as follows:

  • Control groups (cgroups)
  • Namespaces
  • Security-Enhanced Linux (SELinux)

Cgroups

The cgroup functionality allows for limiting and prioritizing resources, such as CPUs, RAM, the network, the filesystem, and so on. The main goal is to not exceed the resources—to avoid wasting resources that might be needed for other processes.

Namespaces

The namespace functionality allows for partitioning of kernel resources, such that one set of processes...