mapr_facts

#!/usr/bin/python
# -*- coding: utf-8 -*-
#
# mapr_facts: get facts about a MapR cluster.
#
# Copyright 2014, Vince Gonzalez
# Vince Gonzalez <[email protected]>
#
# This software may be freely redistributed under the terms of the GNU
# general public license version 2.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.


DOCUMENTATION = '''
---
module: mapr_facts
short_description: get facts about a MapR Hadoop cluster
description:
  - Get facts about a MapR Hadoop cluster
version_added: "1.0"
options:
requirements: this module should target a cluster node.
author: Vince Gonzalez
'''

try:
    import json
except:
    import simplejson as json
import os
import socket

def finish(m, facts_dict, changed, msg=""):
    m.exit_json(changed=changed, ansible_facts=facts_dict, msg=msg)

def abort(m, msg=""):
    m.fail_json(msg=msg)

def get_facts():
    hostname = socket.gethostname()
    facts = { "ansible_facts": dict() }
    if os.path.exists("/opt/mapr/bin/maprcli"):
        command = "/opt/mapr/bin/maprcli node list -filter hostname==%s -json" % hostname
        p = subprocess.Popen(command.split(" "), stdout=subprocess.PIPE)
        output = p.communicate()[0]
        data = json.loads(output)
        facts["ansible_facts"] = data["data"][0]

    return facts

def get_licenses():
    command = "maprcli license list -json".split(" ")
    p = subprocess.Popen(command, stdout=subprocess.PIPE)
    output = p.communicate()[0]
    print output

    return json.loads(output)

def main():
    module = AnsibleModule(
        argument_spec=dict(),
                supports_check_mode=False,
                mutually_exclusive = [ ]
    )


    finish(module, changed=False, facts_dict=get_facts(), msg="foo")

from ansible.module_utils.basic import *
main()

test_mapr_facts.yml

- hosts: all
  tasks:
    - name: mapr facts
      mapr_facts:

    # see the mapr_facts
    - debug: var=ansible_facts

    # check that normal ansible facts remain
    - debug: var=ansible_devices