新节点加入k8s集群

cat >>join.sh</dev/null | openssl dgst -sha256 -hex | sed 's/^.* //'`
echo kubeadm join ${ip}:6443 --token ${token} --discovery-token-ca-cert-hash sha256:${sha256}
EOF

sh join.sh   192.168.1.127

kubeadm join 192.168.1.127:6443 --token 0tvq0j.vjo91vhj4ek4xagc --discovery-token-ca-cert-hash sha256:878a6903082fcd1c5dd6a5f762932372dc08785a27dd511e737ae8b79a638f47