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. Using Helm in this fashion did not require any Kubernetes expertise or any deep understanding of the application since all of the resources and logic were included as part of a Helm chart. The only concept you needed to be familiar with were the values that the chart provided in order to customize your installation.
To do so, we will cover the following topics:
- Understanding the YAML format
- Understanding chart templates
- Understanding chart definitions
- Life cycle management
- Documenting a Helm chart