`singleuser.image` is not picked up

[pebabion]

Bug description

Custom Image under singleuser is not working.

Expected behaviour

My values.yaml file is as below as I want to use jupyter/datascience-notebook to be the base image when use launch. The motivation is that I won't have to install extra common packages such as pandas.

singleuser:
  storage:
    type: dynamic
    extraLabels: {}
    extraVolumes: []
    extraVolumeMounts: []
    static:
      pvcName:
      subPath: "{username}"
    capacity: 10Gi
    homeMountPath: /home/jovyan
    dynamic:
      storageClass:
      pvcNameTemplate: claim-{username}{servername}
      volumeNameTemplate: volume-{username}{servername}
      storageAccessModes: [ReadWriteOnce]
  image:
    name: jupyter/datascience-notebook
    tag: "set-by-chartpress"
    pullPolicy:
    pullSecrets: []
  startTimeout: 300
  cpu:
    limit:
    guarantee:
  memory:
    limit:
    guarantee: 1G
  extraResource:
    limits: {}
    guarantees: {}
  cmd: null
  defaultUrl:
  extraPodConfig: {}

Actual behaviour

When I run kubectl describe pod jupyter-pebabion it shows that the notebook container is still jupyterhub/k8s-singleuser-sample:1.2.0.

Your personal set up

• OS: I'm using Macbook M1. K8S is running on DigitalOcean.
• Version(s):

Full environment

``` # paste output of `pip freeze` or `conda list` here ```

Configuration

```python # jupyterhub_config.py ```

Logs

``` # paste relevant logs here, if any ```

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[github-actions[bot]]

Hi there @pebabion :wave:!

I closed this issue because it was labelled as a support question.

Please help us organize discussion by posting this on the https://discourse.jupyter.org/ forum. If it's your first time posting please read https://discourse.jupyter.org/t/getting-good-answers-to-your-questions/1825. The more information you provide the more likely we can help you.

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