1、在跳板机上使用ansible命令测试机器B时,报错如下,于是就怀疑是网络防火墙的问题
10.10.0.86 | FAILED >> { "failed": true, "msg": "/bin/sh: /usr/bin/python: No such file or directory\r\nOpenSSH_7.6p1 Ubuntu-4ubuntu0.3, OpenSSL 1.0.2n 7 Dec 2017\r\ndebug1: Reading configuration data /etc/ssh/ssh_config\r\ndebug1: /etc/ssh/ssh_config line 19: Applying options for *\r\ndebug1: auto-mux: Trying existing master\r\ndebug1: mux_client_request_session: master session id: 2\r\nShared connection to 10.10.0.86 closed.\r\n", "parsed": false }
2、登录到机器B上,这是一台线上的机器,里面运行docker容器,然后我看平时的经验一般是网络防火墙有问题就直接
iptables -F systemctl stop iptables systemctl stop firewalld
3、然后我想着这应该不会影响容器吧,就看容器的日志,没想到10几个全部报错,都是连接不上,有点慌...,重启容器,完全是起不来的,报错如下
docker: Error response from daemon: driver failed programming external connectivity on endpoint happy_ptolemy (9cedc114be35eb86cd6f7f7bb4f11f93b5f8d2c0745afc72664cef8e96aad439): iptables failed: iptables --wait -t filter -A DOCKER ! -i docker0 -o docker0 -p tcp -d 10.10.0.86 --dport 3000 -j ACCEPT: iptables: No chain/target/match by that name. (exit status 1).
4、解决办法,重启docker
systemctl restart docker