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 looked at how to take advantage of the declarative nature of Kubernetes in detail and managing our application through specification files. We also looked at Annotations, ConfigMap, and Secrets and how those can be created and then used from within Pods. We closed the chapter with updating our Python and Node.js applications to use ConfigMaps to run the example code we set up previously, and looked briefly at how to leverage the built-in JSONPATH within kubectl to make that tool more immediately powerful at providing the specific information you want.