Docker Waring IPv4 forwarding is disabled

问题

docker info 打印信息如下

WARNING: IPv4 forwarding is disabled
WARNING: bridge-nf-call-iptables is disabled
WARNING: bridge-nf-call-ip6tables is disabled

解决

开启 IPv4 forwarding 即可

cd /etc/sysctl.d

增加配置文件 network.conf，并增加以下配置

net.bridge.bridge-nf-call-ip6tables=1
net.bridge.bridge-nf-call-iptables=1
net.bridge.bridge-nf-call-arptables=1
net.ipv4.ip_forward=1

重启网络

systemctl restart network

至此网络恢复正常。