The connection to the server localhost:8080 was refused - did you specify the right host or port?

將主節點（master）中的“/etc/kubernetes/admin.conf”文件拷貝到從節點（node）相同目錄下

scp /etc/kubernetes/admin.conf root@192.168.101.121:/etc/kubernetes/ && \
scp /etc/kubernetes/admin.conf root@192.168.101.122:/etc/kubernetes/ && \
scp /etc/kubernetes/admin.conf root@192.168.101.123:/etc/kubernetes/

echo "export KUBECONFIG=/etc/kubernetes/admin.conf" >> ~/.bash_profile
source ~/.bash_profile

集群 ssh 免密登錄訪問

k8s 集群 ssh 免密登錄訪問

測試

[root@master-120 kubernetes] kg nodes
NAME         STATUS   ROLES                  AGE     VERSION
master-120   Ready    control-plane,master   3h31m   v1.22.9
node-121     Ready    <none>                 3h26m   v1.22.9
node-122     Ready    <none>                 3h26m   v1.22.9
node-123     Ready    <none>                 3h26m   v1.22.9

[root@master-120 etc] kgpodsw
NAME                                 READY   STATUS    RESTARTS       AGE     IP                NODE         NOMINATED NODE   READINESS GATES
coredns-687d9f64f-dlqq9              1/1     Running   3 (118m ago)   3h57m   10.244.0.8        master-120   <none>           <none>
coredns-687d9f64f-hqch5              1/1     Running   3 (118m ago)   3h57m   10.244.0.9        master-120   <none>           <none>
etcd-master-120                      1/1     Running   3 (118m ago)   3h57m   192.168.101.120   master-120   <none>           <none>
kube-apiserver-master-120            1/1     Running   3 (118m ago)   3h57m   192.168.101.120   master-120   <none>           <none>
kube-controller-manager-master-120   1/1     Running   3 (118m ago)   3h57m   192.168.101.120   master-120   <none>           <none>
kube-flannel-ds-44l8g                1/1     Running   3 (118m ago)   3h41m   192.168.101.123   node-123     <none>           <none>
kube-flannel-ds-cf2zd                1/1     Running   4 (118m ago)   3h41m   192.168.101.121   node-121     <none>           <none>
kube-flannel-ds-tkbnh                1/1     Running   5 (118m ago)   3h41m   192.168.101.120   master-120   <none>           <none>
kube-flannel-ds-wxhk4                1/1     Running   3 (118m ago)   3h41m   192.168.101.122   node-122     <none>           <none>
kube-proxy-4rt2z                     1/1     Running   3 (118m ago)   3h57m   192.168.101.120   master-120   <none>           <none>
kube-proxy-86jzc                     1/1     Running   3 (118m ago)   3h52m   192.168.101.123   node-123     <none>           <none>
kube-proxy-dmz5t                     1/1     Running   3 (118m ago)   3h52m   192.168.101.122   node-122     <none>           <none>
kube-proxy-sz9q2                     1/1     Running   3 (118m ago)   3h52m   192.168.101.121   node-121     <none>           <none>
kube-scheduler-master-120            1/1     Running   3 (118m ago)   3h57m   192.168.101.120   master-120   <none>           <none>
[root@master-120 etc]#