No items displayed in tables if clusterName set

[stephan2012]

Environment

Installation method: Helm chart
Kubernetes version: v1.19.16
Dashboard version (v1.x is not supported. Use v2.0 or later.): v2.4.0
Operating system: Ubuntu 18.04.6 LTS
Node.js version ('node --version' output): (official Docker image kubernetesui/dashboard:v2.4.0)
Go version ('go version' output): (official Docker image kubernetesui/dashboard:v2.4.0)

Steps to reproduce

When setting .settings.clusterName via Helm chart 5.0.4, the dashboard shows the number of elements, but no data in the tables (see attached screenshot).

The chart creates a configMap containing:

data:
  _global: '{"clusterName":"k8s"}'

Removing the setting (i.e., setting data to {}) makes the dashboard work.

Observed result

Dashboard shows the number of items, but no actual items.

Quite interesting: When doing many reloads of the page in the web browser, the dashboard sometimes shows data in the tables (every 6th to 10th attempt).

Expected result

Dashboard displays the cluster name and shows data. ;-)

Comments

Confused. Is there any documentation for the settings?

[floreks]

Duplicate of #6282

/close

[k8s-ci-robot]

@floreks: Closing this issue.

In response to this:

Duplicate of #6282

/close

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[floreks]

Actually, my comment from #6282 (comment) is not solved. I will reopen to keep track of it.

/reopen

[k8s-ci-robot]

@floreks: Reopened this issue.

In response to this:

Actually, my comment from #6282 (comment) is not solved. I will reopen to keep track of it.

/reopen

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[stephan2012]

Well, after reading #6282 I’m really wondering why an externally provided config is not merged with the applications defaults. This is absolutely counterintuitive and I do not know any other recent application behaving this way. Instead, it is quite natural to only pass values that you want to override. This also improves forward compatibility when new settings are introduced for the dashboard. Just

helm config to contain all settings and a comment no to remove any of them

is really an attempt to cover bad application design. :-(