k8s节点报错[ERROR FileContent--proc-sys-net-bridge-bridge-nf-call-iptables]:

[root@master ~]# kubeadm init --kubernetes-version=1.14.1 --apiserver-advertise-address 192.168.200.128 --pod-network-cidr=10.244.0.0/21   --image-repository=registry.aliyuncs.com/google_containers 
[init] Using Kubernetes version: v1.14.1
[preflight] Running pre-flight checks
error execution phase preflight: [preflight] Some fatal errors occurred:
        [ERROR FileContent--proc-sys-net-bridge-bridge-nf-call-iptables]: /proc/sys/net/bridge/bridge-nf-call-iptables contents are not set to 1
[preflight] If you know what you are doing, you can make a check non-fatal with `--ignore-preflight-errors=...`

解决方法输入

echo "1" >/proc/sys/net/bridge/bridge-nf-call-iptables