Book Image

Learn Helm

By : Andrew Block, Austin Dewey
Book Image

Learn Helm

By: Andrew Block, Austin Dewey

Overview of this book

Containerization is currently known to be one of the best ways to implement DevOps. While Docker introduced containers and changed the DevOps era, Google developed an extensive container orchestration system, Kubernetes, which is now considered the frontrunner in container orchestration. With the help of this book, you’ll explore the efficiency of managing applications running on Kubernetes using Helm. Starting with a short introduction to Helm and how it can benefit the entire container environment, you’ll then delve into the architectural aspects, in addition to learning about Helm charts and its use cases. You’ll understand how to write Helm charts in order to automate application deployment on Kubernetes. Focused on providing enterprise-ready patterns relating to Helm and automation, the book covers best practices for application development, delivery, and lifecycle management with Helm. By the end of this Kubernetes book, you will have learned how to leverage Helm to develop an enterprise pattern for application delivery.
Table of Contents (15 chapters)
1
Section 1: Introduction and Setup
5
Section 2: Helm Chart Development
9
Section 3: Adanced Deployment Patterns
14
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Questions

  1. What is Helm 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 sets of commands? When would you use one set of commands over the other?
  3. What is the difference between the --set and --values flags 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 to when you do provide values for an upgrade?
  6. Imagine 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 you want to view all of the releases deployed to a Kubernetes namespace. What command should you run?
  8. Imagine you run helm repo add to add a chart repository. What command can you run to list all of the...