Book Image

Kubernetes for Developers

By : Joseph Heck
Book Image

Kubernetes for Developers

By: Joseph Heck

Overview of this book

Kubernetes is documented and typically approached from the perspective of someone running software that has already been built. Kubernetes may also be used to enhance the development process, enabling more consistent testing and analysis of code to help developers verify not only its correctness, but also its efficiency. This book introduces key Kubernetes concepts, coupled with examples of how to deploy and use them with a bit of Node.js and Python example code, so that you can quickly replicate and use that knowledge. You will begin by setting up Kubernetes to help you develop and package your code. We walk you through the setup and installation process before working with Kubernetes in the development environment. We then delve into concepts such as automating your build process, autonomic computing, debugging, and integration testing. This book covers all the concepts required for a developer to work with Kubernetes. By the end of this book, you will be in a position to use Kubernetes in development ecosystems.
Table of Contents (16 chapters)
Title Page
Packt Upsell
Contributors
Preface
Index

Summary


In this chapter, we started with reviewing some practical notes about how to develop your code to run within a container. We reviewed options for getting logging from your program, and then some techniques for accessing the Pods when your code is running. We then reviewed the Kubernetes concepts of labels and selectors, showing how they are used on the commands we have used so far, and then looked at the Kubernetes service concept to expose sets of Pods (such as in a deployment) to each other, or external to a Kubernetes cluster. Finally, we ended the chapter by looking at deployment rollouts, and how you can roll out changes as well as see the history of those changes.