I have had jhub released in my cluster successfully. I then changed the config to pull another docker image as stated in the documentation.

This time, while running the same old command:

# Suggested values: advanced users of Kubernetes and Helm should feel
# free to use different values.
RELEASE=jhub
NAMESPACE=jhub

helm upgrade --install $RELEASE jupyterhub/jupyterhub \
  --namespace $NAMESPACE  \
  --version=0.8.2 \
  --values jupyter-hub-config.yaml

where the jupyter-hub-config.yaml file is:

proxy:
  secretToken: "<a secret token>"
singleuser:
  image:
    # Get the latest image tag at:
    # https://hub.docker.com/r/jupyter/datascience-notebook/tags/
    # Inspect the Dockerfile at:
    # https://github.com/jupyter/docker-stacks/tree/master/datascience-notebook/Dockerfile
    name: jupyter/datascience-notebook
    tag: 177037d09156

I get the following problem:

UPGRADE FAILED
ROLLING BACK
Error: "jhub" has no deployed releases
Error: UPGRADE FAILED: "jhub" has no deployed releases

I then deleted the namespace via kubectl delete ns/jhub and the release via helm delete --purge jhub. Again tried this command in vain, again the same error.

I read few GH issues and found that either the YAML file was invalid or that the --force flag worked. However, in my case, none of these two are valid.

I expect to make this release and also learn how to edit the current releases.

Note: As you would find in the aforementioned documentation, there is a pvc created.