Exercises

Generate the PowerShell autocomplete script for Helm:

This command generates the Helm autocomplete configuration and appends it to your PowerShell profile.
The $PROFILE variable points to your PowerShell profile file, which is loaded every time you start PowerShell.

If you are currently in a PowerShell session, reload your profile to activate the autocomplete:

Alternatively, close and reopen your PowerShell window to load the updated profile.

Test that autocomplete is working by typing `helm ` (with a space) and pressing the Tab key.
You should see available Helm commands appear as suggestions.
You can continue pressing Tab to cycle through the available options.

Autocomplete will now help you discover Helm commands, subcommands, and flags as you work through the exercises.

Create a new Helm chart named my-first-chart:

List all of the files that were created in the chart directory:

This command shows you the complete directory structure of your new chart, including all subdirectories and files.

Remove the chart directory that you just created:

Add the Jetstack Helm repository to your local Helm configuration:

Update your repository information and pull a chart from the Jetstack repository.
First, update your local repository cache:

Then, pull a chart from the Jetstack repository (for example, the cert-manager chart):

This downloads the chart package to your current directory.

Create a new Helm chart using a Jetstack starter template.
First, you may need to pull the starter chart or use it directly:

Alternatively, if you have a local starter, you can specify the path to the starter chart.

This creates a new chart based on the Jetstack starter template, giving you a foundation that follows Jetstack’s chart structure and best practices.

If you have not already added the Jetstack repository, add it now:

Update your repository cache to ensure you have the latest chart information:

View the default values for the cert-manager chart:

This command displays all the default configuration values for the cert-manager chart.
Look through the output to find RBAC-related settings, which are typically under sections like rbac, serviceAccount, or global.rbac.

Use the helm template command to render the cert-manager chart with default values and examine the RBAC resources that would be created:

This command renders all the Kubernetes manifests that would be created when installing cert-manager.
Search through the output for RBAC resources such as:
* ServiceAccount resources
* ClusterRole resources
* ClusterRoleBinding resources
* Role resources
* RoleBinding resources

You can also filter the output to show only RBAC-related resources by piping the output through Select-String:

This helps you quickly identify all RBAC-related resources that the chart would create.

Use the helm env command to display Helm’s current environment settings:

This command shows important Helm configuration paths and settings, including:
* The location of Helm’s configuration directory
* The location of the cache directory
* The location of the data directory
* Plugin and registry paths

These paths tell you where Helm stores its configuration files and cached data on your system.

Helm stores repository information in a configuration file.
First, identify where Helm stores its configuration by checking the output from helm env, or use the default location.
On Windows, this is typically in your user profile directory.

View the repository configuration file:

If the file does not exist at that location, you can find the exact path using:

This shows you the structure of your repository configuration, including all repositories you have added, their URLs, and metadata.

Helm also maintains configuration for OCI registries.
View the registry configuration file:

Alternatively, find the exact path using:

This file contains authentication and configuration information for OCI registries that you have logged into.
It may include credentials, registry URLs, and other registry-specific settings.

You can also explore the Helm configuration directory structure:

This shows you all Helm configuration files and directories, giving you a complete view of Helm’s local configuration structure.