wget https://github.com/projectcalico/calicoctl/releases/download/v3.21.0/calicoctl -O /usr/bin/calicoctl
chmod +x /usr/bin/calicoctl
DATASTORE_TYPE=kubernetes KUBECONFIG=~/.kube/config calicoctl get nodes
[root@VM-0-2-centos ~]# calicoctl get node
NAME
k8s-master
k8s-pod-01
k8s-pod-02