Book Image

Managing Kubernetes Resources Using Helm - Second Edition

By : Andrew Block, Austin Dewey
Book Image

Managing Kubernetes Resources Using Helm - Second Edition

By: Andrew Block, Austin Dewey

Overview of this book

Containerization is one of the best ways to implement DevOps, and learning how to execute it effectively is an essential part of a developer’s skillset. Kubernetes is the current industry standard for container orchestration. This book will help you discover the efficiency of managing applications running on Kubernetes with Helm. Starting with a brief introduction to Helm and its impact on users working with containers and Kubernetes, you’ll delve into the primitives of Helm charts and their architecture and use cases. From there, you’ll understand how to write Helm charts in order to automate application deployment on Kubernetes and work your way toward more advanced strategies. These enterprise-ready patterns are focused on concepts beyond the basics so that you can use Helm optimally, looking at topics related to automation, application development, delivery, lifecycle management, and security. By the end of this book, you’ll have learned how to leverage Helm to build, deploy, and manage applications on Kubernetes.
Table of Contents (18 chapters)
Part 1: Introduction and Setup
Part 2: Helm Chart Development
Part 3: Advanced Deployment Patterns

Setting up Helm

Once minikube and kubectl have been installed, the next logical tool to configure is Helm. Note that the version of Helm that was used at the time of writing this book was v3.6.3.

Installing Helm

Packages for Helm exist for both Chocolatey and Homebrew to allow you to easily install it on Windows or macOS. On these systems, the following commands can be run to install Helm with the applicable package manager:

  • Install Helm on Windows using the following command:
    > choco install kubernetes-helm     
  • Install Helm on macOS using the following command:
    $ brew install helm

Linux users, or users who would rather install Helm from a direct downloadable link, can download an archive from Helm’s GitHub releases page by following these steps:

  1. Find the Installation and Upgrading section on Helm’s GitHub releases page at

Figure 2.3 – The...