In this doc they use u@node$ to define that the command is done from a node in a cluster. But how do you get to the node from kubectl?
It is well described how to get to a pod u@pod$
The apiserver can be used as a HTTP proxy (as described here) to hit endpoints on Nodes, but I assume you need an SSH session which won't help.
On GKE you can SSH into your nodes using gcloud as follows:
gcloud compute instances listgcloud compute ssh <nodeName>On GKE you simply select your cluster and click on SSH button. If from the command line, then:
gcloud compute ssh NODE --zone ZONE