docker 问题处理汇总

1.解决docker 端口防火墙拦截不住问题处理：

vim /etc/docker/daemon.json
{
"iptables": false
}

2.解决容器不能访问外网和内网同网段ip

开启ipv4端口转发

vi /etc/sysctl.conf
net.ipv4.ip_forward = 1

sysctl -p

开启转发

firewall-cmd --add-masquerade --permanent

重新加载运行

firewall-cmd --reload

执行后，容器内部可以访问外网

3.解决docker nginx 获取不到真实ip

在 docker-compare.xml services:下配置network_mode: "host"

version: '3'
services:
  nginx:
    image: nginx
    container_name: nginx_test
    restart: always
    ports:
      - 80:80
    volumes:
      - /data/nginx/www:/usr/share/nginx/html
      - /data/nginx/conf/nginx.conf:/etc/nginx/nginx.conf
      - /data/nginx/logs:/var/log/nginx
    network_mode: "host"

重启docker

systemctl restart docker

重新打包容器

docker-compose -f docker-compose.yml up -d

参考资料

https://docs.docker.com/compose/compose-file/#ports