Helm in Practice

The Default Namespace

When you run a command like the following:

helm install my-wordpress bitnami/wordpress --version 28.0.2

Helm installs the chart into a Kubernetes namespace. By default, Helm uses the default namespace unless you specify a different one using the --namespace flag:

helm install my-wordpress bitnami/wordpress --version 28.0.2
    --namespace my-custom-namespace

The variable HELM_NAMESPACE allows you to set a default namespace for all Helm commands in your current shell session. For example, if you set:

export HELM_NAMESPACE="my-custom-namespace"