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


  1. What is Artifact Hub? How can a user interact with it to find charts and chart repositories?
  2. What is the difference between the helm get and helm show commands?
  3. What is the difference between the --set and --values parameters in the helm install and helm upgrade commands? What are the benefits of using one over the other?
  4. What command can be used to provide the list of revisions for a release?
  5. What happens by default when you upgrade a release without providing any values? How does this behavior differ from when you do provide values for an upgrade?
  6. Imagine that you have five revisions of a release. What would the helm history command show after you roll back the release to revision 3?
  7. Imagine that you want to view all of the releases deployed to a Kubernetes namespace. What command should you run?
  8. Imagine that you run helm repo add to add a chart repository. What command can you run to list all of the charts in that repository?