ansible：fetch的使用

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1. ansible功能查看方法

 [[email protected] ~]# ansible-doc -s ping
- name: Try to connect to host, verify a usable python and return `pong' on success
  ping:
      data:                  # Data to return for the `ping' return value. If this parameter is set to `crash', the module will cause an
                               exception.

2. fetch

 [[email protected] ansible]# vim hosts
[testA]
server5 ansible_host=172.25.60.5
server6 ansible_host=172.25.60.6
[testB]
server3 ansible_host=172.25.60.3
[test:children]
testA
testB

[[email protected] ansible]# ansible testA -m fetch -a "src=/etc/fstab dest=/testdir/ansible"  # 将testA组中主机的/etc/fstab拷贝到ansible主机的/testdir/ansible目录下
server6 | CHANGED => {
    "changed": true, 
    "checksum": "0d7e74cb0ef4387d8c0be3c03cae65073b719404", 
    "dest": "/testdir/ansible/server6/etc/fstab", 
    "md5sum": "df6584fd3c643b1ad71247ed8ea368dc", 
    "remote_checksum": "0d7e74cb0ef4387d8c0be3c03cae65073b719404", 
    "remote_md5sum": null
}
server5 | CHANGED => {
    "changed": true, 
    "checksum": "0d7e74cb0ef4387d8c0be3c03cae65073b719404", 
    "dest": "/testdir/ansible/server5/etc/fstab", 
    "md5sum": "df6584fd3c643b1ad71247ed8ea368dc", 
    "remote_checksum": "0d7e74cb0ef4387d8c0be3c03cae65073b719404", 
    "remote_md5sum": null
}
[[email protected] ansible]# cd /testdir/ansible/
[[email protected] ansible]# ls
server5  server6

幂等性的体现

[[email protected] ansible]# ansible testA -m fetch -a "src=/etc/fstab dest=/testdir/ansible"
server5 | SUCCESS => {
    "changed": false, 
    "checksum": "0d7e74cb0ef4387d8c0be3c03cae65073b719404", 
    "dest": "/testdir/ansible/server5/etc/fstab", 
    "file": "/etc/fstab", 
    "md5sum": "df6584fd3c643b1ad71247ed8ea368dc"
}
server6 | SUCCESS => {
    "changed": false, 
    "checksum": "0d7e74cb0ef4387d8c0be3c03cae65073b719404", 
    "dest": "/testdir/ansible/server6/etc/fstab", 
    "file": "/etc/fstab", 
    "md5sum": "df6584fd3c643b1ad71247ed8ea368dc"