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134 lines
4.4 KiB
Python
134 lines
4.4 KiB
Python
#!/usr/bin/env python
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# (c) 2016, Julian Barnett <jbarnett@tableau.com>
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#
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# This file is part of Ansible.
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#
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# Ansible is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Ansible is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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'''
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MDT external inventory script
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=================================
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author: J Barnett 06/23/2016 01:15
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maintainer: J Barnett (github @jbarnett1981)
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'''
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import argparse
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import json
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import pymssql
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try:
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import configparser
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except ImportError:
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import ConfigParser as configparser
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class MDTInventory(object):
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def __init__(self):
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''' Main execution path '''
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self.conn = None
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# Initialize empty inventory
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self.inventory = self._empty_inventory()
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# Read CLI arguments
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self.read_settings()
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self.parse_cli_args()
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# Get Hosts
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if self.args.list:
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self.get_hosts()
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# Get specific host vars
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if self.args.host:
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self.get_hosts(self.args.host)
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def _connect(self, query):
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'''
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Connect to MDT and dump contents of dbo.ComputerIdentity database
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'''
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if not self.conn:
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self.conn = pymssql.connect(server=self.mdt_server + "\\" + self.mdt_instance, user=self.mdt_user, password=self.mdt_password,
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database=self.mdt_database)
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cursor = self.conn.cursor()
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cursor.execute(query)
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self.mdt_dump = cursor.fetchall()
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self.conn.close()
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def get_hosts(self, hostname=False):
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'''
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Gets host from MDT Database
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'''
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if hostname:
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query = ("SELECT t1.ID, t1.Description, t1.MacAddress, t2.Role "
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"FROM ComputerIdentity as t1 join Settings_Roles as t2 on t1.ID = t2.ID where t1.Description = '%s'" % hostname)
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else:
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query = 'SELECT t1.ID, t1.Description, t1.MacAddress, t2.Role FROM ComputerIdentity as t1 join Settings_Roles as t2 on t1.ID = t2.ID'
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self._connect(query)
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# Configure to group name configured in Ansible Tower for this inventory
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groupname = self.mdt_groupname
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# Initialize empty host list
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hostlist = []
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# Parse through db dump and populate inventory
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for hosts in self.mdt_dump:
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self.inventory['_meta']['hostvars'][hosts[1]] = {'id': hosts[0], 'name': hosts[1], 'mac': hosts[2], 'role': hosts[3]}
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hostlist.append(hosts[1])
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self.inventory[groupname] = hostlist
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# Print it all out
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print(json.dumps(self.inventory, indent=2))
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def _empty_inventory(self):
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'''
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Create empty inventory dictionary
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'''
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return {"_meta" : {"hostvars" : {}}}
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def read_settings(self):
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'''
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Reads the settings from the mdt.ini file
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'''
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config = configparser.SafeConfigParser()
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config.read('mdt.ini')
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# MDT Server and instance and database
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self.mdt_server = config.get('mdt', 'server')
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self.mdt_instance = config.get('mdt', 'instance')
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self.mdt_database = config.get('mdt', 'database')
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# MDT Login credentials
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if config.has_option('mdt', 'user'):
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self.mdt_user = config.get('mdt', 'user')
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if config.has_option('mdt', 'password'):
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self.mdt_password = config.get('mdt', 'password')
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# Group name in Tower
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if config.has_option('tower', 'groupname'):
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self.mdt_groupname = config.get('tower', 'groupname')
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def parse_cli_args(self):
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'''
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Command line argument processing
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'''
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parser = argparse.ArgumentParser(description='Produce an Ansible Inventory file based on MDT')
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parser.add_argument('--list', action='store_true', default=False, help='List instances')
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parser.add_argument('--host', action='store', help='Get all the variables about a specific instance')
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self.args = parser.parse_args()
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if __name__ == "__main__":
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# Run the script
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MDTInventory()
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