Basic Commands of Helm 3

Help of helm command:

helm --help

Add Helm repo official stable charts:

helm repo add stable https://kubernetes-charts.storage.googleapis.com/

Update the list helm chart available for installation (like apt-get update). This is recommend before install/upgrade a helm chart:

helm repo update

List the helm repositories installed in your local environment:

helm repo list

Repositories can be removed with command:

helm repo remove

Once this is installed, you will be able to list the charts you can install:

helm search repo stable

Searches in the Helm Hub, which comprises helm charts from dozens of different repositories.

helm search hub

Searches the repositories that you have added to your local environment. This search is done over local data and no network connection is needed.

helm search repo

Use the command to see informations of chart :

helm show chart HELM_REPO_NAME/CHART_NAME

Use the command to see documentation of chart:

helm show readme HELM_REPO_NAME/CHART_NAME

Use the command to see what default options of a chart:

helm show values HELM_REPO_NAME/CHART_NAME

List installed charts in Kubernetes cluster:

helm list --all-namespaces

# or

helm list -n NAMESPACE

Use the command if you want to see what the default values were used for this installation:

helm get values APPLICATION_NAME -n NAMESPACE

View the change history of the application installed with helm. You will see revision number for each change/upgrade of application:

helm history APPLICATION_NAME -n NAMESPACE

Use the commando to do rollback of application to specific revision number:

helm rollback APPLICATION_NAME REVISION_NUMBER -n NAMESPACE

Remove a application installed with helm in Kubernetes cluster:

helm uninstall APPLICATION_NAME -n NAMESPACE

More informations and commands about helm:

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