Red Hat8.0安装k8s之后的适配问题

1. 红帽8.0操作系统安装完k8s之后，nodelocadns容器启动失败报错信息：

Failed to setup - error checking rule: exit status 3: Notice: The NOTRACK target is converted into CT target in rule listing and saving.
iptables v1.6.0: can't initialize iptables table `raw': Table does not exist (do you need to insmod?)
Perhaps iptables or your kernel needs to be upgraded.

#每台机器执行
modprobe ip_tables
modprobe ip_conntrack
modprobe iptable-filter
modprobe ipt_state

#安装显卡驱动所需要的依赖
sudo yum install -y gcc gcc-c++ 
#缺少这个依赖会报截图中的错误
yum install elfutils-libelf-devel