Allow customising the proxy image choices via the Helm chart

[mz2]

The JupyterHub Helm chart at the moment allows for the hub and singleuser notebook server image to be configured. There is no (at least documented?) facility for doing the same for the proxy images. I mean these kinds of properties are missing for the images involved in the proxy service:

  image:
    name: ...
    tag: ...
  imagePullSecret:
    username: ...
    password: ...
    registry: ...
    enabled: ...

[manics]

The proxy has multiple containers:

zero-to-jupyterhub-k8s/jupyterhub/values.yaml

Lines 87 to 106 in 54b884b

	chp:
	image:
	name: jupyterhub/configurable-http-proxy
	tag: 4.1.0
	resources:
	requests:
	cpu: 200m
	memory: 512Mi
	nginx:
	image:
	name: quay.io/kubernetes-ingress-controller/nginx-ingress-controller
	tag: 0.15.0
	proxyBodySize: 64m
	hstsIncludeSubdomains: 'false'
	resources: {}
	lego:
	image:
	name: jetstack/kube-lego
	tag: 0.1.7
	resources: {}

What do you need to configure?

[mz2]

Good point, adjusted issue title + description to note that.

This is related to https://discourse.jupyter.org/t/intercepting-requests-to-jupyter-notebook-server/2046 – my plan was to alter the configurable-http-proxy containing image for my purposes (I'd like to intercept some specific endpoints), but to be honest I could use advice on that.

[consideRatio]

This is now possible

zero-to-jupyterhub-k8s/jupyterhub/templates/proxy/deployment.yaml

Lines 51 to 53 in 5df3b12

	containers:
	- name: chp
	image: {{ .Values.proxy.chp.image.name }}:{{ .Values.proxy.chp.image.tag }}