lvscare can't create ipvs rules when server reboot

[fanux]

Could not get ipvs family information from the kernel. It is possible that ipvs is not enabled in your kernel. Native loadbalancing will not work until this is fixed.

kubelet already has pre start scripts:

/etc/systemd/system/kubelet.service
[Unit]
Description=kubelet: The Kubernetes Node Agent
Documentation=http://kubernetes.io/docs/

[Service]
ExecStart=/usr/bin/kubelet
ExecStartPre=sh /usr/bin/kubelet-pre-start.sh
Restart=always
StartLimitInterval=0
RestartSec=10

[Install]
WantedBy=multi-user.target

[root@iz2ze2d8u10y3g9c1hxrc1z ~]# cat /usr/bin/kubelet-pre-start.sh
# Open ipvs
modprobe -- ip_vs
modprobe -- ip_vs_rr
modprobe -- ip_vs_wrr
modprobe -- ip_vs_sh
modprobe -- nf_conntrack_ipv4

cat <<EOF >  /etc/sysctl.d/k8s.conf
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
EOF
sysctl --system
sysctl -w net.ipv4.ip_forward=1
systemctl stop firewalld && systemctl disable firewalld
swapoff -a
setenforce 0