查看ip是否是master的ip：
cat /etc/sysconfig/flanneld
FLANNEL_ETCD= "http://100.10.69.254:2379"
创建脚本：
touch /etc/init.d/start_flannel.sh
vi /etc/init.d/start_flannel.sh
脚本内容：
#!/bin/bash
systemctl stop firewalld
systemctl disable firewalld
systemctl start docker
systemctl stop docker
systemctl restart flanneld
/usr/libexec/flannel/mk-docker-opts.sh -i
source /run/flannel/subnet.env
ifconfig docker0 ${FLANNEL_SUBNET}
systemctl restart docker kubelet kube-proxy
执行脚本：
sh /etc/init.d/start_flannel.sh
参考：
http://blog.csdn.net/carter115/article/details/50986701
http://studygolang.com/articles/9294
