Check Node metrics from the API

$ RANDOM_NODE=$(kubectl get nodes -o name | tail -n 1)
$ kubectl get --raw /apis/metrics.k8s.io/v1beta1/${RANDOM_NODE} | jq .
{
  "kind": "NodeMetrics",
  "apiVersion": "metrics.k8s.io/v1beta1",
  "metadata": {
    "name": "worker-n5-a6ayds",
    "selfLink": "/apis/metrics.k8s.io/v1beta1/nodes/worker-n5-a6ayds",
    "creationTimestamp": "2018-01-26T06:41:49Z"
  },
  "timestamp": "2018-01-26T06:41:00Z",
  "window": "1m0s",
  "usage": {
    "cpu": "12436m",
    "memory": "4991296Ki"
  }
}