The Helm chart used to install your JupyterHub deployment has a lot of options for you to tweak. For a semi-complete reference list of the options, see the Configuration Reference.
The general method to modify your Kubernetes deployment is to:
Make a change to your config.yaml.
config.yaml
Run a helm upgrade:
helm upgrade
helm upgrade --cleanup-on-fail \ <helm-release-name> jupyterhub/jupyterhub \ --namespace <k8s-namespace> \ --version=<chart-version> \ --values config.yaml
Note that helm list should display <YOUR_RELEASE_NAME> if you forgot it.
helm list
<YOUR_RELEASE_NAME>
Verify that the hub and proxy pods entered the Running state after the upgrade completed.
Running
NAMESPACE=jhub kubectl get pod --namespace $NAMESPACE
For information about the many things you can customize with changes to your Helm chart through values provided to its templates through config.yaml, see the Customization Guide.