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docker启动容器时端口映射错误
错误如下:
[root@instance-0pk09gjj ~]# docker start a228cc3ff39e
Error response from daemon: driver failed programming external connectivity on endpoint mysql01 (2bb270948a3ce6c30a7904c6ecf66e50ec9a8871158c64c5e422c3271a94f073): (iptables failed: iptables --wait -t nat -A DOCKER -p tcp -d 0/0 --dport 3306 -j DNAT --to-destination 172.17.0.3:3306 ! -i docker0: iptables: No chain/target/match by that name.
(exit status 1))
Error: failed to start containers: a228cc3ff39e
原因: 防火墙已经关闭.
解决方案:
1. 关闭防火墙, 重新重启docker服务(systemctl restart docker), 再一次启动mysql容器;
2. 对外开放3306端口, 重新重启docker服务(systemctl restart docker), 再一次启动mysql容器;