Centos 7 docker 启动容器 iptables 报 No chain/target/match by that name

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启动一个有 nat 映射端口的容器时，iptables 报 No chain/target/match by that name

 

 

 

 

 

 

Shell

 

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docker run - d - p 2181 : 2181 - p 2888 : 2888 - p 3888 : 3888 garland / zookeeper   Error response from daemon : Cannot start container 565c06efde6cd4411e2596ef3d726817c58dd777bc5fd13762e0c34d86076b9e : iptables failed : iptables -- wait - t nat - A DOCKER - p tcp - d 0 / 0 -- dport 3888 - j DNAT -- to - destination 192.168.42.11 : 3888 ! - i docker0 : iptables : No chain / target / match by that name

找了N多网站和官方issue后，还是没找到真正的解决方法，网上到处转载的只是分析了原因，并没有明确的解决方案，为此与同事通宵加班终于解决了这个问题。

找到系统的/etc/sysconfig/iptables ，如果没有用以下命令保存一下,然后查看里边的内容

 

 

 

 

 

Shell

 

1 2	iptables - save > / etc / sysconfig / iptables   cat / etc / sysconfig / iptables

发现内容如下

 

 

 

 

 

Shell

 

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* filter : INPUT ACCEPT [ 0 : 0 ] : FORWARD ACCEPT [ 0 : 0 ] : OUTPUT ACCEPT [ 0 : 0 ]   - N whitelist - A whitelist - s 192.168.42.0 / 24 - j ACCEPT #syn - N syn - flood - A INPUT - p tcp -- syn - j syn - flood - I syn - flood - p tcp - m limit -- limit 3 / s -- limit - burst 6 - j RETURN - A syn - flood - j REJECT #DOS - A INPUT - i eth0 - p tcp -- syn - m connlimit -- connlimit - above 15 - j DROP - A INPUT - p tcp - m state -- state ESTABLISHED , RELATED - j ACCEPT ## 省略一些简单的防火墙规则

查看启动容器的报错信息发现-A DOCKER DOCKER链，但在iptables文件里并没有找到，

由于之前在自己的系统(archlinux)学习使用docker时并没遇到这问题，

所以马上去看了下自己系统里的iptables的文件，

内容如下

 

 

 

 

 

 

Shell

 

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* nat : PREROUTING ACCEPT [ 27 : 11935 ] : INPUT ACCEPT [ 0 : 0 ] : OUTPUT ACCEPT [ 598 : 57368 ] : POSTROUTING ACCEPT [ 591 : 57092 ] : DOCKER - [ 0 : 0 ] - A PREROUTING - m addrtype -- dst - type LOCAL - j DOCKER - A OUTPUT ! - d 127.0.0.0 / 8 - m addrtype -- dst - type LOCAL - j DOCKER - A POSTROUTING - s 172.17.0.0 / 16 ! - o docker0 - j MASQUERADE - A POSTROUTING - s 172.17.0.3 / 32 - d 172.17.0.3 / 32 - p tcp - m tcp -- dport 1521 - j MASQUERADE - A POSTROUTING - s 172.17.0.3 / 32 - d 172.17.0.3 / 32 - p tcp - m tcp -- dport 22 - j MASQUERADE - A DOCKER ! - i docker0 - p tcp - m tcp -- dport 49161 - j DNAT -- to - destination 172.17.0.3 : 1521 - A DOCKER ! - i docker0 - p tcp - m tcp -- dport 49160 - j DNAT -- to - destination 172.17.0.3 : 22 COMMIT    # Completed on Sun Sep 20 17:35:31 2015 # Generated by iptables-save v1.4.21 on Sun Sep 20 17:35:31 2015 * filter : INPUT ACCEPT [ 139291 : 461018923 ] : FORWARD ACCEPT [ 0 : 0 ] : OUTPUT ACCEPT [ 127386 : 5251162 ] : DOCKER - [ 0 : 0 ] - A FORWARD - o docker0 - j DOCKER - A FORWARD - o docker0 - m conntrack -- ctstate RELATED , ESTABLISHED - j ACCEPT - A FORWARD - i docker0 ! - o docker0 - j ACCEPT - A FORWARD - i docker0 - o docker0 - j ACCEPT - A DOCKER - d 172.17.0.3 / 32 ! - i docker0 - o docker0 - p tcp - m tcp -- dport 1521 - j ACCEPT - A DOCKER - d 172.17.0.3 / 32 ! - i docker0 - o docker0 - p tcp - m tcp -- dport 22 - j ACCEPT COMMIT    # Completed on Sun Sep 20 17:35:31 2015

对比后以去掉不相关的规则，以现*nat规则里有以下的对于docker的配置

 

 

 

 

 

Shell

 

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* nat : PREROUTING ACCEPT [ 27 : 11935 ] : INPUT ACCEPT [ 0 : 0 ] : OUTPUT ACCEPT [ 598 : 57368 ] : POSTROUTING ACCEPT [ 591 : 57092 ] : DOCKER - [ 0 : 0 ] - A PREROUTING - m addrtype -- dst - type LOCAL - j DOCKER - A POSTROUTING - s 172.17.0.0 / 16 ! - o docker0 - j MASQUERADE COMMIT

*filter 规则里对docker的配置如下

 

 

 

 

 

Shell

 

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* filter : INPUT ACCEPT [ 139291 : 461018923 ] : FORWARD ACCEPT [ 0 : 0 ] : OUTPUT ACCEPT [ 127386 : 5251162 ] : DOCKER - [ 0 : 0 ] - A FORWARD - o docker0 - j DOCKER - A FORWARD - o docker0 - m conntrack -- ctstate RELATED , ESTABLISHED - j ACCEPT - A FORWARD - i docker0 ! - o docker0 - j ACCEPT - A FORWARD - i docker0 - o docker0 - j ACCEPT COMMIT

去掉不相关规则后的配置文件如下(可以直接用)：

 

 

 

 

 

Shell

 

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* nat : PREROUTING ACCEPT [ 27 : 11935 ] : INPUT ACCEPT [ 0 : 0 ] : OUTPUT ACCEPT [ 598 : 57368 ] : POSTROUTING ACCEPT [ 591 : 57092 ] : DOCKER - [ 0 : 0 ] - A PREROUTING - m addrtype -- dst - type LOCAL - j DOCKER - A OUTPUT ! - d 127.0.0.0 / 8 - m addrtype -- dst - type LOCAL - j DOCKER - A POSTROUTING - s 172.17.0.0 / 16 ! - o docker0 - j MASQUERADE COMMIT    # Completed on Sun Sep 20 17:35:31 2015 # Generated by iptables-save v1.4.21 on Sun Sep 20 17:35:31 2015 * filter : INPUT ACCEPT [ 139291 : 461018923 ] : FORWARD ACCEPT [ 0 : 0 ] : OUTPUT ACCEPT [ 127386 : 5251162 ] : DOCKER - [ 0 : 0 ] - A FORWARD - o docker0 - j DOCKER - A FORWARD - o docker0 - m conntrack -- ctstate RELATED , ESTABLISHED - j ACCEPT - A FORWARD - i docker0 ! - o docker0 - j ACCEPT - A FORWARD - i docker0 - o docker0 - j ACCEPT COMMIT    # Completed on Sun Sep 20 17:35:31 2015

然后再加上自己服务器的过滤规则，合并后覆盖到Centos 7的 /etc/sysconfig/iptables文件

重启iptables 服务

 

 

 

 

 

Shell

 

1	systemctl restart iptables .service

两次启动对应docker容器，

 

 

 

 

 

Shell

 

1	docker run - d - p 2181 : 2181 - p 2888 : 2888 - p 3888 : 3888 garland / zookeeper

发现容器启动成功，虽然有警告，但并不影响容器的使用

 

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