docker WARNING: IPv4 forwarding is disabled 问题解决

问题：

[yuyongxr@localhost ~]$sudo docker run -d --name nginx -p 80:8080 nginx 　　
WARNING: IPv4 forwarding is disabled. Networking will not work. 

解决方法：

[yuyongxr@localhost ~]$ sudo vim /usr/lib/sysctl.d/00-system.conf

#添加如下代码：
net.ipv4.ip_forward=1

重启network和docker服务

[yuyongxr@localhost ~]$ sudo systemctl restart network

[yuyongxr@localhost ~]$ sudo systemctl restart docker