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

Chapter 7. Monitoring and Metrics

In the previous chapters, we investigated the declarative structures used in Kubernetes objects and resources. With the end goal of having Kubernetes help run software for us, in this chapter we will look at how we can get more information, when we're running our applications at a greater scale, and some open source tools that we can use for that purpose. Kubernetes is already gathering and using some information about how utilized the nodes of the cluster are, and there is a growing capability within Kubernetes to start to collect application-specific metrics, and even use those metrics as a control point for managing the software.

In this chapter, will we dig into these aspects of basic observability and walk through how you can set them up for your local development use, and how to leverage them to gather, aggregate, and expose details of how your software is running, when you scale it up. Topics within this chapter will include:

  • Built-in metrics with Kubernetes...