Ansible Ad-hoc命令执行模块实战教程

[devops@node1 ansible]$ ansible node1 -m shell -a 'whoami'
node1 | CHANGED | rc=0 >>
root
# 使用ad-hoc创建一个目录
[devops@node1 ansible]$ ansible node1 -m shell -a 'mkdir /ansibel'
[WARNING]: Consider using the file module with state=directory rather than running 'mkdir'.  If you
need to use command because file is insufficient you can add 'warn: false' to this command task or
set 'command_warnings=False' in ansible.cfg to get rid of this message.
node1 | CHANGED | rc=0 >>

[devops@node1 ansible]$ sudo ls /ansibel -d
/ansibel

# 正常的
[devops@node1 ansible]$ ansible all -m command -a 'whoami'
node1 | CHANGED | rc=0 >>
root
node2 | CHANGED | rc=0 >>
root
# 错误的
[devops@node1 ansible]$ ansible all -m command -a 'whoami > /opt/who.txt'
node2 | FAILED | rc=1 >>
whoami: extra operand ‘>'
Try 'whoami --help' for more information.non-zero return code
node1 | FAILED | rc=1 >>
whoami: extra operand ‘>'
Try 'whoami --help' for more information.non-zero return code

# 不带重定向
[devops@node1 ansible]$ ansible node1 -m shell -a 'whoami'
node1 | CHANGED | rc=0 >>
root
# 带重定向
[devops@node1 ansible]$ ansible node1 -m shell -a 'whoami > /opt/who.txt'
node1 | CHANGED | rc=0 >>
# 查看文件内容
[devops@node1 ansible]$ cat /opt/who.txt 
root

# 我们刚刚不是在node1上创建了一个/opt/who.txt吗？node2上是没有的，那么我们选择就来指定这个文件
[devops@node1 ansible]$ ansible all -m shell -a 'creates=/opt/who.txt whoami'
node1 | SUCCESS | rc=0 >>
skipped, since /opt/who.txt exists
node2 | CHANGED | rc=0 >>
root

[devops@node1 ansible]$ ansible all -m shell -a 'removes=/opt/who.txt whoami'
node1 | CHANGED | rc=0 >>
root
node2 | SUCCESS | rc=0 >>
skipped, since /opt/who.txt does not exist

[devops@node1 ansible]$ cat test.sh 
#!/bin/bash
ifconfig |grep netmask | awk -F" " '{print $2}'

[devops@node1 ansible]$ ansible all -m script -a 'test.sh'
node2 | CHANGED => {
    "changed": true,
    "rc": 0,
    "stderr": "Shared connection to node2 closed.\r\n",
    "stderr_lines": [
        "Shared connection to node2 closed."
    ],
    "stdout": "/home/devops/.ansible/tmp/ansible-tmp-1708832697.440758-6677-176602102106477/test.sh: line 2: ifconfig: command not found\r\n",
    "stdout_lines": [
        "/home/devops/.ansible/tmp/ansible-tmp-1708832697.440758-6677-176602102106477/test.sh: line 2: ifconfig: command not found"
    ]
}
node1 | CHANGED => {
    "changed": true,
    "rc": 0,
    "stderr": "Shared connection to node1 closed.\r\n",
    "stderr_lines": [
        "Shared connection to node1 closed."
    ],
    "stdout": "192.168.100.210\r\n192.168.200.131\r\n127.0.0.1\r\n192.168.122.1\r\n",
    "stdout_lines": [
        "192.168.100.210",
        "192.168.200.131",
        "127.0.0.1",
        "192.168.122.1"
    ]
}

[devops@node1 ansible]$ ansible node2 -m shell -a 'find / -name test.sh'
node2 | CHANGED | rc=0 >>