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#!/usr/bin/env python
# (c) 2014, Jonathan Lestrelin <jonathan.lestrelin@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/>.
"""
Nagios NDO external inventory script.
========================================
Returns hosts and hostgroups from Nagios NDO.
Configuration is read from `nagios_ndo.ini`.
"""
import os
import argparse
import sys
try:
import configparser
except ImportError:
import ConfigParser
configparser = ConfigParser
import json
try:
from sqlalchemy import text
from sqlalchemy.engine import create_engine
except ImportError:
sys.exit("Error: SQLAlchemy is needed. Try something like: pip install sqlalchemy")
class NagiosNDOInventory(object):
def read_settings(self):
config = configparser.SafeConfigParser()
config.read(os.path.dirname(os.path.realpath(__file__)) + '/nagios_ndo.ini')
if config.has_option('ndo', 'database_uri'):
self.ndo_database_uri = config.get('ndo', 'database_uri')
def read_cli(self):
parser = argparse.ArgumentParser()
parser.add_argument('--host', nargs=1)
parser.add_argument('--list', action='store_true')
self.options = parser.parse_args()
def get_hosts(self):
engine = create_engine(self.ndo_database_uri)
connection = engine.connect()
select_hosts = text("SELECT display_name \
FROM nagios_hosts")
select_hostgroups = text("SELECT alias \
FROM nagios_hostgroups")
select_hostgroup_hosts = text("SELECT h.display_name \
FROM nagios_hostgroup_members hgm, nagios_hosts h, nagios_hostgroups hg \
WHERE hgm.hostgroup_id = hg.hostgroup_id \
AND hgm.host_object_id = h.host_object_id \
AND hg.alias =:hostgroup_alias")
hosts = connection.execute(select_hosts)
self.result['all']['hosts'] = [host['display_name'] for host in hosts]
for hostgroup in connection.execute(select_hostgroups):
hostgroup_alias = hostgroup['alias']
self.result[hostgroup_alias] = {}
hosts = connection.execute(select_hostgroup_hosts, hostgroup_alias=hostgroup_alias)
self.result[hostgroup_alias]['hosts'] = [host['display_name'] for host in hosts]
def __init__(self):
self.defaultgroup = 'group_all'
self.ndo_database_uri = None
self.options = None
self.read_settings()
self.read_cli()
self.result = {}
self.result['all'] = {}
self.result['all']['hosts'] = []
self.result['_meta'] = {}
self.result['_meta']['hostvars'] = {}
if self.ndo_database_uri:
self.get_hosts()
if self.options.host:
print(json.dumps({}))
elif self.options.list:
print(json.dumps(self.result))
else:
sys.exit("usage: --list or --host HOSTNAME")
else:
sys.exit("Error: Database configuration is missing. See nagios_ndo.ini.")
NagiosNDOInventory()
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