ansible远程执行命令

23fwerw

ansible testhost -m command -a 'w'
  这样就可以批量执行命令了，这里的testhost为主机组名，-m 后边是模块的名字，-a后面是命令，当然我们也可以直接写一个ip，针对某一台机器来执行命令
    ansible 127.0.0.1 -m command -a 'hostname'
     错误:"msg":"Aborting,target user selinux but python bindings(libselinux-python)arenot installed!"
     解决：yum install -y libselinux-python
      还有一个模块就是shell同样也可以实现

      ansible testhost -m shell -a 'w'


一. Ansible更改配置文件

     vi /etc/ansible/hosts //增加
     
[testhosts]
127.0.0.1
172.7.15.111


说明：testhost为主机组名字，自定义的。下面两个ip为组内的机器ip。

1 2 3 4

[iyunv@web9 ~]# vim /etc/ansible/hosts [testhost] 127.0.0.1 172.7.15.111

针对这个组执行操作（比如远程执行一个w命令）

1 2 3 4 5 6 7 8 9 10 11 12 13 14

[iyunv@web9 ~]# ansible testhosts -m command -a 'w' 172.7.15.111 | SUCCESS | rc=0 >> 00:32:39 up  1:20,  2 users,  load average: 0.00, 0.00, 0.00 USER     TTY      FROM              LOGIN@   IDLE   JCPU   PCPU WHAT root     pts/0    172-7-15-100.lig 23:13    8:09   0.09s  0.09s -bash root     pts/1    web9.gz.com      00:32    0.00s  0.12s  0.00s /bin/sh -c LANG 127.0.0.1 | SUCCESS | rc=0 >> 00:32:38 up  1:21,  4 users,  load average: 0.00, 0.00, 0.00 USER     TTY      FROM              LOGIN@   IDLE   JCPU   PCPU WHAT root     pts/0    172-7-15-100.lig 23:13    1.00s  0.21s  0.01s ssh 127.0.0.1 root     pts/1    localhost        00:28    1.00s  0.05s  0.01s ssh 127.0.0.1 root     pts/2    localhost        00:30    1.00s  0.77s  0.54s /usr/bin/python root     pts/5    localhost        00:32    0.00s  0.08s  0.00s /bin/sh -c LANG

远程执行一个命令ls

1 2 3 4 5 6 7 8 9 10

[iyunv@web9 ~]# ansible testhosts -m command -a 'ls' 172.7.15.111 | SUCCESS | rc=0 >> anaconda-ks.cfg install.log install.log.syslog 127.0.0.1 | SUCCESS | rc=0 >> anaconda-ks.cfg install.log install.log.syslog

1 2 3 4 5 6 7 8 9 10

[iyunv@web9 ~]# ansible testhosts -m command -a 'hostname' 172.7.15.111 | SUCCESS | rc=0 >> web10.gz.com 127.0.0.1 | SUCCESS | rc=0 >> web9.gz.com [iyunv@web9 ~]# ansible web10.gz.com -m command -a 'hostname' web10.gz.com | SUCCESS | rc=0 >> web10.gz.com

执行的过程难免加管道符
第一种方法不行第二种加个shell就哦了

1 2 3 4 5 6 7 8 9

[iyunv@web9 ~]# ansible web10.gz.com -m command -a 'cat /etc/passwd|grep root' web10.gz.com | FAILED | rc=1 >> cat: /etc/passwd|grep: 没有那个文件或目录 cat: root: 没有那个文件或目录 [iyunv@web9 ~]# ansible web10.gz.com -m shell -a 'cat /etc/passwd|grep root' web10.gz.com | SUCCESS | rc=0 >> root:x:0:0:root:/root:/bin/bash operator:x:11:0:operator:/root:/sbin/nologin

如果有提示一下信息时，第一时间检查防火墙有没有关，密钥有没有配对

1 2 3 4 5 6 7 8 9 10 11 12 13 14

[iyunv@web9 ~]# ansible testhosts -m command -a 'w' The authenticity of host '172.7.15.106 (172.7.15.106)' can't be established. RSA key fingerprint is 67:31:c8:49:f6:17:59:88:e3:4a:61:a8:2b:44:20:55. Are you sure you want to continue connecting (yes/no)? 172.7.15.111 | UNREACHABLE! => {     "changed": false,     "msg": "SSH encountered an unknown error during the connection. We recommend you re-run the command using -vvvv, which will enable SSH debugging output to help diagnose the issue",     "unreachable": true } 172.7.15.106 | UNREACHABLE! => {     "changed": false,     "msg": "SSH encountered an unknown error during the connection. We recommend you re-run the command using -vvvv, which will enable SSH debugging output to help diagnose the issue",     "unreachable": true }