Dashboard Link w/o Dashboard Addon

[vlerenc]

I have created a cluster without Kubernetes dashboard (less attack surface), but the Gardener Dashboard (still) shows a Kubernetes dashboard link in the cluster details:

[grolu]

We currently always show the dashboard link when we are able to get a cluster URL from the cluster kubeconfig (we generate the url by adding /ui). There is no logic in place to check if there is actually a dashboard running in a specific cluster. To determine, if there is actually a dashboard running, we would need to look for the kubernetes-dashboard service when fetching the shoot info, right? @petersutter @holgerkoser

[petersutter]

..or we could check the shoot spec for the dashboard addon?

[grolu]

Yes this would cover most cases, at least the straight forward ones.

[vlerenc]

Yes, that's what I meant. I was too lazy painting red circles around the addon and the monitoring section.

[holgerkoser]

From my point of view in general the referrer is not responsible for the availability or the existence of the target. I don't see a problem with showing a link which will result in 404. This indicates that the dashboard is not deployed. To me this is not a bug but an enhancement. Anyway the url /ui redirect is removed (kubernetes/kubernetes#53766).

[petersutter]

regarding /ui:
we already have the path configurable but we should consider removing the default, which points to /ui: https://github.com/gardener/dashboard/blob/master/frontend/src/store/modules/shoots.js#L165-L166