Book Image

Cloud-Native Development and Migration to Jakarta EE

By : Ron Veen, David Vlijmincx
Book Image

Cloud-Native Development and Migration to Jakarta EE

By: Ron Veen, David Vlijmincx

Overview of this book

Cloud-Native Development and Migration to Jakarta EE will help you unlock the secrets of Jakarta EE's evolution as you explore the migration and modernization of your applications. You’ll discover how to make your code compatible with the latest Jakarta EE version and how to leverage its modern features effectively. First, you’ll navigate the realm of cloud-native development as you demystify containers and get introduced to the Eclipse MicroProfile, a powerful tool in your toolkit. Next, you’ll take the bold step of transitioning your applications from local hardware to the limitless possibilities of the cloud. By following the author’s expert guidance to deploy your Jakarta EE applications on Microsoft Azure, you’ll gain hands-on experience in managing cloud resources. In the final leg of your journey, you’ll explore the world of serverless architecture. You’ll learn to design and run services that are truly serverless, harnessing the potential of the event-driven paradigm for scalability and cost-efficiency. By the end of this book, you’ll have mastered Jakarta EE and become a proficient cloud-native developer. Join us on this exciting journey of transformation and innovation as you pave the way for the future of Jakarta EE and cloud-native development.
Table of Contents (18 chapters)
1
Part 1: History of Java EE and Jakarta EE
4
Part 2: Modern Jakarta EE
8
Part 3: Embracing the Cloud
Appendix A: Java EE to Jakarta EE names
Appendix B: As a Service

Why would you need Kubernetes?

You might wonder at this point why you would need Kubernetes at all. However, even if your company is not the size of Google, or you are not running zillions of containers in your production environment, container orchestration via Kubernetes is something you are going to need.

As it turns out, Kubernetes has some extremely useful features that make it appealing to even small companies. In the remainder of this chapter, we will discuss these features in more detail.

Self-healing

One of the most useful functions of Kubernetes is the ability to heal itself. Should Kubernetes determine that a pod has crashed, then it will start a new pod to replace the failed one. That way, the cluster is brought back to the desired state again.

Of course, there are some constraints to this process. One of them is that there should be enough resources available to be able to start a new pod. Resources can refer to (virtualized) machines, memory, CPU, and storage...