ansible-playbook常用模块 fetch | 张志明的个人博客

fetch模块的功能与copy相同，都是拷贝文件，但是方向相反，fetch是从远程主机下载文件到本地

例子：

# Store file into /tmp/fetched/host.example.com/tmp/somefile
- fetch: src=/tmp/somefile dest=/tmp/fetched

# Specifying a path directly
- fetch: src=/tmp/somefile dest=/tmp/prefix-{{ inventory_hostname }} flat=yes

# Specifying a destination path
- fetch: src=/tmp/uniquefile dest=/tmp/special/ flat=yes

# Storing in a path relative to the playbook
- fetch: src=/tmp/uniquefile dest=special/prefix-{{ inventory_hostname }} flat=yes

# Store file into /tmp/fetched/host.example.com/tmp/somefile

- fetch: src=/tmp/somefile dest=/tmp/fetched

# Specifying a path directly

- fetch: src=/tmp/somefile dest=/tmp/prefix-{{ inventory_hostname }} flat=yes

# Specifying a destination path

- fetch: src=/tmp/uniquefile dest=/tmp/special/ flat=yes

# Storing in a path relative to the playbook

- fetch: src=/tmp/uniquefile dest=special/prefix-{{ inventory_hostname }} flat=yes

完整参数：

parameter	required	default	choices	comments
dest	yes			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_missing	no	no	yes no	When set to ‘yes’, the task will fail if the source file is missing.
flat	no			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.
src	yes			The file on the remote system to fetch. This must be a file, not a directory. Recursive fetching may be supported in a later release.
validate_checksum (added in 1.4)	no	yes	yes no	Verify that the source and destination checksums match after the files are fetched. aliases: validate_md5