docker WARNING: IPv4 forwarding is disabled. 解决方法

[root@docker mynginx]

# docker run -d -p 5000:5000 registry

WARNING: IPv4 forwarding is disabled. Networking will not work.

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…

解决办法：

在宿主机上面执行：

# net.ipv4.ip_forward=1 >> /usr/lib/sysctl.d/00-system.conf

重启network和docker服务

# systemctl restart network && systemctl restart docker