[ansible学习笔记]fetch模块
摘自官方文档：[*] This module works like copy, but in reverse. It is used for fetching files from remote machines and storing them locally in a file tree, organized by hostname. Note that this module is written to transfer log files that might not be present, so a missing remote file won’t be an error unless fail_on_missing is set to ‘yes’.
选项：
parameterrequireddefaultchoicescommentsdestyes A directory to save the file into. For example, if the dest directory is /backup a src file named /etc/profile on host host.example.com, would be saved into /backup/host.example.com/etc/profile
fail_on_missingnono
[*] yes
[*] no
When set to 'yes', the task will fail if the source file is missing.
flatno Allows you to override the default behavior of appending hostname/path/to/file to the destination. If dest ends with '/', it will use the basename of the source file, similar to the copy module. Obviously this is only handy if the filenames are unique.
srcyes
The file on the remote system to fetch. This must be a file, not a directory. Recursive fetching may be supported in a later>validate_checksum (added in 1.4)
noyes
[*] yes
[*] no
Verify that the source and destination checksums match after the files are fetched.
aliases: validate_md5
样例：
# cat roles/common/tasks/main.yml
---
- name: fetch
fetch:
src: /etc/hosts
dest: /tmp/fetchdir
# cat site.yml
---
- hosts: app
tasks:
- name: mkdir -p /tmp/fetchdir
command: mkdir -p /tmp/fetchdir
roles:
- common
# ansible-playbook site.yml
SSH password:
PLAY *********************************************************************
TASK *******************************************************************
ok:
ok:
TASK **********************************************************
changed:
changed:
TASK **************************************************
changed:
: Consider using file module with state=directory rather than running mkdir
changed:
PLAY RECAP *********************************************************************
rhel56-192.168.209.133 : ok=3 changed=2 unreachable=0 failed=0
rhel61-192.168.209.142 : ok=3 changed=2 unreachable=0 failed=0
# ll /tmp/fetchdir/{rhel56-192.168.209.133,rhel61-192.168.209.142}/etc/
/tmp/fetchdir/rhel56-192.168.209.133/etc/:
total 4
-rw-r--r-- 1 root root 187 Feb 16 18:31 hosts
/tmp/fetchdir/rhel61-192.168.209.142/etc/:
total 4
-rw-r--r-- 1 root root 158 Feb 16 18:31 hosts
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