Enable progress bar progression for singleuser.events = False:

[antonvorobets]

Proposed change

Change the behavior of singleuser.events = False:. Currently, this option will leave the progress bar empty, which might make users uneasy as it will seem as if nothing is happening until their server is available. See this discourse thread for more information: https://discourse.jupyter.org/t/how-to-deactivate-the-event-log/17082.

The proposal is to let singleuser.events = False: show the progress bar progression, but remove the event log or at least deactivate the duplication of "Server requested".

Alternative options

An option is to overwrite the behavior by subclassing the KubeSpawner as described here: https://discourse.jupyter.org/t/how-to-deactivate-the-event-log/17082/7?u=antonvorobets. However, this has some side effects for the event log and requires cluster admins to keep an eye on the progress() method.

Who would use this feature?

People who don't want their users to see the events when their server is spawned. The messages can be confusing for regular users and there should be no need for them to know, for example, that a node didn’t match a Pod’s node affinity/selector before a scaleup is correctly triggered. Information about the maximum number of nodes, image names and where they are stored also seem to be unnecessary for regular users.

(Optional): Suggest a solution

A part of the solution could simply be to change yield in progress() as described here: https://discourse.jupyter.org/t/how-to-deactivate-the-event-log/17082/7?u=antonvorobets. Currently progress() simply returns None if singleuser.events = False:. I unfortunately don't have sufficient overview of the KubeSpawner to suggest how to adjust the behavior of the event log.

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[antonvorobets]

I see that this issue was added and then removed in March. Are there any plans to implement this feature or at least improve the messages for the users as suggested in this issue https://github.com/jupyterhub/kubespawner/issues/524?

The current messages are really not helpful for users and cause significant confusion. The messages are good for cluster admins, but having just the progress bar should be sufficient for users. For example, there is no need for users to know the full name of the image being pulled or how many nodes the cluster can scale up to. It also seem to cause unrest when the message says warning, while it just scales up the cluster.