ansible/rst/modules/ini_file.rst

ini_file

0.9

Manage (add, remove, change) individual settings in an INI-style file without having to manage the file as a whole with, say, template or assemble. Adds missing sections if they don't exist.

parameter	required	default	choices	comments
option	no			if set (required for changing a value), this is the name of the option.May be omitted if adding/removing a whole section.
others	no			all arguments accepted by the file module also work here
dest	yes			Path to the INI-style file; this file is created if required
section	yes			Section name in INI file. This is added if state=present automatically when a single value is being set.
backup	no		yes no	Create a backup file including the timestamp information so you can get the original file back if you somehow clobbered it incorrectly.
value	no			the string value to be associated with an option. May be omitted when removing an option.

Ensure fav=lemonade is in section [drinks] in said file

ini_file dest=/etc/conf section=drinks option=fav value=lemonade mode=0600 backup=true

ini_file dest=/etc/anotherconf
     section=drinks
     option=temperature
     value=cold
     backup=true

Notes

While it is possible to add an option without specifying a value, this makes no sense.