error: error loading config file "/etc/kubernetes/admin.conf": open /etc/kubernetes/admin.conf: permission denied

실행

kubectl get nodes

조치

# 확인
sudo kubectl get nodes --kubeconfig /etc/kubernetes/admin.conf

# 에러
couldn't get current server API group list: Get "https://192.168.0.3:6443/api?timeout=32s": dial tcp 192.168.0.3:6443: connect: connection refused

# 조치
sudo chmod 644 /etc/kubernetes/admin.conf