Flannel指定网卡通信

在kubernetes集群中有多块网卡时，flannel默认会外网网卡保存入etcd中，k8s集群中service,pod等通信时肯定是想使用内网通信，如何通信等资源请自行google

• 配置 Flannel通信网卡

# vim /etc/sysconfig/flanneld
# #在flannel启动项中配置-iface=eth0(网卡名称)
# #FLANNEL_OPTIONS="-etcd-cafile=/etc/kubernetes/ssl/ca.pem -etcd-certfile=/etc/kubernetes/ssl/kubernetes.pem -etcd-keyfile=/etc/kubernetes/ssl/kubernetes-key.pem -iface=eth0"
# systemctl daemon-reload
# systemctl restart flanneld
# systemctl status flanneld 
# 查看启动项是否生效