[enhancement] Improve dashboard query for kube-apiserver (and maybe others).

[Jeansen]

Describe the enhancement you'd like

I suggest making the job label, e.g. for the Kubernetes API Server a variable that can be set during the kustomize call or make the hard-coded Regex more flexible.

For instance, there is the following query for the API Server:

up{job=~"kubernetes-apiservers|apiserver", cluster=~"$cluster"}

My API Server metrics us "kube-apiserver" for the job label. So, I cannot see this metric in the provided dashboard.

I'd suggest to make it look more like this:

up{job=~"(kube-|kubernetes-)*apiserver(s)*", cluster=~"k8s"}

This would match the following job labels:

• kube-apiserver
• kube-apiservers
• kubernetes-apiserver
• kuberntes-apiservers
• apiserver
• apiservers

Additional context

No response

[dotdc]

Hi @Jeansen,

I agree, the current regex isn't very flexible...
How about creating a job variable for the k8s-system-api-server dashboard?
That should make it even more flexible!

Wdyt?

[Jeansen]

Hi @dotdc ,

That's a great idea! I just came up with the "quick fix". But having a job variable (which is also used in other dashboards) would be great. Currently I have a scenario where I play around with different dashboards, including yours, but also the Kubernetes Mixins and Boards from Grafana Mimir.

I believe it will be a swift PR on your side. I would declare myself still a rookie when it comes to Grafana dashboards, but I'd be happy to send you early feedback before merging into main.

[dotdc]

Sure, I'll do it.
Will let you know.