ansible/library/facter

#!/usr/bin/python
# -*- coding: utf-8 -*-

# (c) 2012, Michael DeHaan <michael.dehaan@gmail.com>
#
# This file is part of Ansible
#
# Ansible is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Ansible is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Ansible.  If not, see <http://www.gnu.org/licenses/>.
#


DOCUMENTATION = '''
---
module: facter
short_description: Runs the discovery program I(facter) on the remote system
description:
     - Runs the I(facter) discovery program
       (U(https://github.com/puppetlabs/facter)) on the remote system, returning
       JSON data that can be useful for inventory purposes.
version_added: "0.2"
options: {}
examples:
   - code: ansible www.example.net -m facter
     description: "Example command-line invocation"
notes: []
requirements: [ "facter", "ruby-json" ]
author: Michael DeHaan
'''

import subprocess

def get_facter_data():
    p = subprocess.Popen(["/usr/bin/env", "facter", "--json"], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
    (out, err) = p.communicate()
    rc = p.returncode
    return rc, out, err


def main():
    module = AnsibleModule(
        argument_spec = dict()
    )

    rc, out, err = get_facter_data()
    if rc != 0:
        module.fail_json(msg=err)
    else:
        module.exit_json(**json.loads(out))

# this is magic, see lib/ansible/module_common.py
#<<INCLUDE_ANSIBLE_MODULE_COMMON>>

main()