Summary of Helm Environment Variables

To summarize, here is a table of the most important Helm environment variables covered in this chapter:

Category	Variable	Description	Default Value	Example Usage
Configuration	`HELM_CONFIG_HOME`	Directory for Helm configuration files	`~/.config/helm`	Config files, `repositories.yaml`
	`HELM_REPOSITORY_CONFIG`	Path to the repositories configuration file	`~/.config/helm/repositories.yaml`	Repository credentials and URLs
	`HELM_REGISTRY_CONFIG`	Path to OCI registry configuration	`~/.config/helm/registry/config.json`	OCI registry authentication
Cache	`HELM_CACHE_HOME`	Directory for cached data	`~/.cache/helm`	Repository indexes and cached charts
	`HELM_REPOSITORY_CACHE`	Directory for the repository cache	`~/.cache/helm/repository`	Cached `index.yaml` files
Data	`HELM_DATA_HOME`	Directory for Helm data storage	`~/.local/share/helm`	Plugins and persistent data
	`HELM_PLUGINS`	Directory for Helm plugins	`~/.local/share/helm/plugins`	Installed plugin executables
Kubernetes Connection	`HELM_KUBEAPISERVER`	Kubernetes API server URL	From kubeconfig	`https://api.cluster.local:6443`
	`HELM_KUBECONTEXT`	Kubernetes context to use	From kubeconfig	`my-cluster-context`
	`HELM_KUBETOKEN`	Bearer token for API authentication	From kubeconfig	Direct token authentication
	`HELM_KUBECAFILE`	Path to a custom CA certificate	From kubeconfig	`/path/to/ca.crt`
	`HELM_KUBEINSECURE_SKIP_TLS_VERIFY`	Skip TLS certificate verification	`false`

Helm in Practice

Designing, Deploying, and Operating Kubernetes Applications at Scale

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