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

Capturing metrics with Prometheus


Prometheus is a prominent open source tool used for monitoring, and quite a bit of symbiotic work is happening between it and the Kubernetes community. Kubernetes application metrics are exposed in the Prometheus format. This format includes the data types of counter, gauge, histogram, and summary, as well as a means of specifying labels to be associated with specific metrics. As Prometheus and Kubernetes have both evolved, the metrics format from Prometheus appears to be emerging as a de facto standard within the project and across its various components.

More information about this format is available online at the Prometheus project's documentation:

Beyond the metrics format, Prometheus offers quite a variety of capabilities as its own open source project, and is used outside Kubernetes. The architecture...