1, 将当前 iptables 的配置写入保存到 / etc/sysconfig/iptables
2, 保存
/etc/init.d/iptables sava
3, 修改 iptables 配置 (vi /etc/sysconfig/iptables):
在适当位置增加下面红色的三行, 然后重启 iptables 即可.(30612 是容器对外提供服务的端口)
- -A FORWARD -i docker0 -o docker0 -j ACCEPT
- -A DOCKER -d 172.17.0.10/32 ! -i docker0 -o docker0 -p tcp -m tcp --dport 9000 -j ACCEPT
- -A DOCKER -d 172.17.0.117/32 ! -i docker0 -o docker0 -p tcp -m tcp --dport 8080 -j ACCEPT
- -A DOCKER -d 172.17.0.7/32 ! -i docker0 -o docker0 -p tcp -m tcp --dport 32095 -j ACCEPT
- -A DOCKER -d 172.17.0.7/32 ! -i docker0 -o docker0 -p tcp -m tcp --dport 30612 -j ACCEPT
- COMMIT
- # Completed on Thu Mar 3 13:34:42 2016
- # Generated by iptables-save v1.4.7 on Thu Mar 3 13:34:42 2016
- *nat
- :PREROUTING ACCEPT [267:19881]
- :POSTROUTING ACCEPT [8:480]
- :OUTPUT ACCEPT [8:480]
- :DOCKER - [0:0]
- -A PREROUTING -p tcp -m tcp --dport 32095 -j DNAT --to-destination 172.17.0.7:32095
- -A PREROUTING -m addrtype --dst-type LOCAL -j DOCKER
- -A POSTROUTING -s 172.17.0.0/16 ! -o docker0 -j MASQUERADE
- -A POSTROUTING -s 172.17.0.10/32 -d 172.17.0.10/32 -p tcp -m tcp --dport 9000 -j MASQUERADE
- -A POSTROUTING -s 172.17.0.117/32 -d 172.17.0.117/32 -p tcp -m tcp --dport 8080 -j MASQUERADE
- -A POSTROUTING -s 172.17.0.7/32 -d 172.17.0.7/32 -p tcp -m tcp --dport 32095 -j MASQUERADE
- -A POSTROUTING -s 172.17.0.7/32 -d 172.17.0.7/32 -p tcp -m tcp --dport 30612 -j MASQUERADE
- -A OUTPUT ! -d 127.0.0.0/8 -m addrtype --dst-type LOCAL -j DOCKER
- -A DOCKER ! -i docker0 -p tcp -m tcp --dport 9000 -j DNAT --to-destination 172.17.0.10:9000
- -A DOCKER ! -i docker0 -p tcp -m tcp --dport 54321 -j DNAT --to-destination 172.17.0.117:8080
- -A DOCKER ! -i docker0 -p tcp -m tcp --dport 32095 -j DNAT --to-destination 172.17.0.7:32095
- -A DOCKER ! -i docker0 -p tcp -m tcp --dport 30612 -j DNAT --to-destination 172.17.0.7:30612
- COMMIT
- # Completed on Thu Mar 3 13:34:42 2016
最后:
重启 iptables 服务
- # centos6.x
- service iptables restart
- # centos7.x
- systemctl restart iptables.service
来源: http://www.bubuko.com/infodetail-3166828.html