kubernetes work 节点运行如下组件：
- docker
- kubelet
- kube-proxy
安装和配置 flanneld，参考前边的配置
1、安装依赖包
cat > magic50_install_Depend_Package.sh << "EOF"
#!/bin/bash
# 安装依赖包
source /opt/k8s/bin/environment.sh
for node_ip in ${NODE_IPS[@]}
do
echo ">>> ${node_ip}"
ssh root@${node_ip} "yum install -y epel-release"
ssh root@${node_ip} "yum install -y conntrack ipvsadm ipset jq iptables curl sysstat libseccomp && /usr/sbin/modprobe ip_vs "
done
EOF
