ansible模块command、shell、raw、script
# ansible-doc commandless 436
Copyright (C) 1984-2009 Mark Nudelman
less comes with NO WARRANTY, to the extent permitted by law.
For information about the terms of redistribution,
see the file named README in the less distribution.
Homepage: http://www.greenwoodsoftware.com/less
> COMMAND
The module takes the command name followed by a list of
space-delimited arguments. The given command will be executed on all
selected nodes. It will not be processed through the shell, so
variables like `$HOME' and operations like `"<"', `">"', `"|"', and
`"&"' will not work (use the module if you need these
features).
Options (= is mandatory):
- chdir
cd into this directory before running the command [Default:
None]
- creates
a filename, when it already exists, this step will *not* be
run.
- executable
change the shell used to execute the command. Should be an
absolute path to the executable.
= free_form
the command module takes a free form command to run.There is
no parameter actually named 'free form'. See the examples!
- removes
a filename, when it does not exist, this step will *not* be
run.
- warn
if command warnings are on in ansible.cfg, do not warn about
this particular line if set to no/false.
Notes:If you want to run a command through the shell (say you are using
`<', `>', `|', etc), you actually want the module
instead. The module is much more secure as it's not
affected by the user's environment.`creates', `removes', and
`chdir' can be specified after the command. For instance, if
you only want to run a command if a certain file does not
exist, use this.
EXAMPLES:
# Example from Ansible Playbooks.
- command: /sbin/shutdown -t now
# Run the command if the specified file does not exist.
- command: /usr/bin/make_database.sh arg1 arg2 creates=/path/to/database
# You can also use the 'args' form to provide the options. This command
# will change the working directory to somedir/ and will only run when
# /path/to/database doesn't exist.
- command: /usr/bin/make_database.sh arg1 arg2
args:
chdir: somedir/
creates: /path/to/database
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