Can't get eu.gcr.io working on binderhub k8s

[ctr26]

So I initially attempted the variant in the documentation but my gcloud account is limited to the eu. So I tried the eu.gcr.io variants which fail authorisation. The closest I got was having:

registry:
  url: https://gcr.io

config:
  BinderHub:
    use_registry: true
    image_prefix: eu.gcr.io/<google-project-id>/<prefix>-

Which asked my to got and authorise the service account I was using. But I didn't get much further than that. Has anyone had any success with location restricted gcr.io?

P.s. this is all working fine on my local machine regarding pushing and pulling images

[manics]

If you run repo2docker locally can it push to eu.gcr.io?

It looks like the Helm Chart has a conditional that specifically checks for gcr.io: https://github.com/jupyterhub/binderhub/blob/731b92ffe9acb044de1466bb3e3cc6c4f3b1342e/helm-chart/binderhub/templates/_helpers.tpl#L30-L37

Maybe you could try modifying it?