kubectl apply -f https://github.com/kubernetes-sigs/metrics-server/releases/latest/download/components.yaml
kubectl apply -f https://raw.githubusercontent.com/pythianarora/total-practice/master/sample-kubernetes-code/metrics-server.yaml
kubectl top nodes
# NAME CPU(cores) CPU% MEMORY(bytes) MEMORY%
# haedongg_net_01 214m 0% 4545Mi 0%
# haedongg_net_02 208m 0% 7611Mi 1%
# haedongg_net_03 201m 0% 4081Mi 0%
# haedongg_net_master <unknown>