Add recommended/well known Kubernetes labels to the cluster resources

Kubernetes has a set of well known labels that we should add to the pods and maybe other resources too.

[https://kubernetes.io/docs/concepts/overview/working-with-objects/common-labels/](https://kubernetes.io/docs/concepts/overview/working-with-objects/common-labels/)

It would help with systems that have automatic detection for those labels + make our dashboards more uniform.