Scaffolding a New Helm Chart

In the previous chapter, you learned how to use Helm from an end user perspective, leveraging it as a package manager to install applications to Kubernetes. Leveraging Helm in this fashion required you to understand how to use the Helm life cycle commands (install, upgrade, rollback, and uninstall), but it did not require you to understand how the Helm chart itself was built. While an understanding of the Helm CLI commands is necessary to install and manage applications installed by Helm, that level of knowledge alone will not allow you to package your own applications into Helm charts.

In the second part of this book, starting with this chapter, we will switch gears away from being a Helm chart end user and transition into becoming a Helm chart developer. We will accomplish this by building a Helm chart from scratch over the next few chapters that deploys an instance of the Guestbook application, a commonly used sample application within the Kubernetes...