I have a JupyterHub following the Zero to JupyterHub with Kubernetes, using Keycloak for authentication.
Everything worked fine, until recently, when users were no authorized any more (they got
403 : Forbidden Sorry, you are not currently authorized to use this hub. Please contact the hub administrator.). I can circumvent this by manually authorizing them through
hub.config.Authenticator.allowed_users in the helm config, but as far as I understand, leaving
allowed_user empty should also work and simply authorize all authenticated user (which it did until recently).
Has anybody an idea what might be the issue? I’m using Helm chart version 3.0.3 with JupyterHub version 4.0.2, but everything worked well with the same versions before. Thank you for your help!