docker通过iptables修改或新增镜像映射端口

时间：2024-06-09 23:37:14
443 8088 22 端口是初始映射端口

[root@SERVER ~]# docker ps

CONTAINER ID        IMAGE               COMMAND               CREATED             STATUS              PORTS                                                                NAMES

96b2d3c6c99d        inits/source1.0.3   "/usr/sbin/sshd -D"    hours ago         Up  hours          0.0.0.0:->/tcp, 0.0.0.0:->/tcp, 0.0.0.0:->/tcp   elegant_blackwell 
iptables策略

[root@SERVER ~]# iptables -t nat -L -n

Chain PREROUTING (policy ACCEPT)

target     prot opt source               destination

DOCKER     all  --  0.0.0.0/            0.0.0.0/           ADDRTYPE match dst-type LOCAL 

Chain POSTROUTING (policy ACCEPT)

target     prot opt source               destination

MASQUERADE  all  --  172.17.0.0/        0.0.0.0/

MASQUERADE  tcp  --  172.17.0.15          172.17.0.15         tcp dpt:

MASQUERADE  tcp  --  172.17.0.15          172.17.0.15         tcp dpt:

MASQUERADE  tcp  --  172.17.0.15          172.17.0.15         tcp dpt: 

Chain OUTPUT (policy ACCEPT)

target     prot opt source               destination

DOCKER     all  --  0.0.0.0/           !127.0.0.0/         ADDRTYPE match dst-type LOCAL 

Chain DOCKER ( references)

target     prot opt source               destination

DNAT       tcp  --  0.0.0.0/0            0.0.0.0/0           tcp dpt:8088 to:172.17.0.15:8088

DNAT       tcp  --  0.0.0.0/0            0.0.0.0/0           tcp dpt:443 to:172.17.0.15:443

DNAT       tcp  --  0.0.0.0/0            0.0.0.0/0           tcp dpt:1038 to:172.17.0.15:22

新增映射端口

iptables -t nat -A DOCKER ! -i br0 -p tcp -m tcp --dport  -j DNAT --to-destination 172.17.0.15:

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