287 lines
12 KiB
Python
287 lines
12 KiB
Python
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# -*- coding: utf-8 -*-
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# Copyright (C) 2020 Orion Poplawski <orion@nwra.com>
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# Copyright (c) 2020 Ansible Project
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# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
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from __future__ import (absolute_import, division, print_function)
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__metaclass__ = type
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DOCUMENTATION = '''
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author: Orion Poplawski (@opoplawski)
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name: cobbler
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short_description: Cobbler inventory source
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version_added: 1.0.0
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description:
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- Get inventory hosts from the cobbler service.
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- "Uses a configuration file as an inventory source, it must end in C(.cobbler.yml) or C(.cobbler.yaml) and has a C(plugin: cobbler) entry."
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extends_documentation_fragment:
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- inventory_cache
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options:
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plugin:
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description: The name of this plugin, it should always be set to C(community.general.cobbler) for this plugin to recognize it as it's own.
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required: yes
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choices: [ 'cobbler', 'community.general.cobbler' ]
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url:
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description: URL to cobbler.
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default: 'http://cobbler/cobbler_api'
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env:
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- name: COBBLER_SERVER
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user:
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description: Cobbler authentication user.
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required: no
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env:
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- name: COBBLER_USER
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password:
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description: Cobbler authentication password
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required: no
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env:
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- name: COBBLER_PASSWORD
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cache_fallback:
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description: Fallback to cached results if connection to cobbler fails
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type: boolean
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default: no
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exclude_profiles:
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description:
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- Profiles to exclude from inventory.
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- Ignored if I(include_profiles) is specified.
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type: list
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default: []
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elements: str
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include_profiles:
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description:
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- Profiles to include from inventory.
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- If specified, all other profiles will be excluded.
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- I(exclude_profiles) is ignored if I(include_profiles) is specified.
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type: list
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default: []
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elements: str
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version_added: 4.4.0
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group_by:
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description: Keys to group hosts by
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type: list
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elements: string
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default: [ 'mgmt_classes', 'owners', 'status' ]
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group:
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description: Group to place all hosts into
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default: cobbler
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group_prefix:
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description: Prefix to apply to cobbler groups
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default: cobbler_
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want_facts:
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description: Toggle, if C(true) the plugin will retrieve host facts from the server
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type: boolean
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default: yes
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'''
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EXAMPLES = '''
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# my.cobbler.yml
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plugin: community.general.cobbler
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url: http://cobbler/cobbler_api
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user: ansible-tester
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password: secure
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'''
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import socket
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from ansible.errors import AnsibleError
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from ansible.module_utils.common.text.converters import to_text
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from ansible.module_utils.six import iteritems
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from ansible.plugins.inventory import BaseInventoryPlugin, Cacheable, to_safe_group_name
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# xmlrpc
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try:
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import xmlrpclib as xmlrpc_client
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HAS_XMLRPC_CLIENT = True
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except ImportError:
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try:
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import xmlrpc.client as xmlrpc_client
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HAS_XMLRPC_CLIENT = True
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except ImportError:
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HAS_XMLRPC_CLIENT = False
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class InventoryModule(BaseInventoryPlugin, Cacheable):
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''' Host inventory parser for ansible using cobbler as source. '''
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NAME = 'community.general.cobbler'
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def __init__(self):
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super(InventoryModule, self).__init__()
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self.cache_key = None
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self.connection = None
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def verify_file(self, path):
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valid = False
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if super(InventoryModule, self).verify_file(path):
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if path.endswith(('cobbler.yaml', 'cobbler.yml')):
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valid = True
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else:
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self.display.vvv('Skipping due to inventory source not ending in "cobbler.yaml" nor "cobbler.yml"')
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return valid
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def _get_connection(self):
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if not HAS_XMLRPC_CLIENT:
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raise AnsibleError('Could not import xmlrpc client library')
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if self.connection is None:
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self.display.vvvv('Connecting to %s\n' % self.cobbler_url)
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self.connection = xmlrpc_client.Server(self.cobbler_url, allow_none=True)
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self.token = None
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if self.get_option('user') is not None:
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self.token = self.connection.login(self.get_option('user'), self.get_option('password'))
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return self.connection
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def _init_cache(self):
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if self.cache_key not in self._cache:
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self._cache[self.cache_key] = {}
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def _reload_cache(self):
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if self.get_option('cache_fallback'):
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self.display.vvv('Cannot connect to server, loading cache\n')
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self._options['cache_timeout'] = 0
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self.load_cache_plugin()
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self._cache.get(self.cache_key, {})
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def _get_profiles(self):
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if not self.use_cache or 'profiles' not in self._cache.get(self.cache_key, {}):
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c = self._get_connection()
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try:
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if self.token is not None:
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data = c.get_profiles(self.token)
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else:
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data = c.get_profiles()
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except (socket.gaierror, socket.error, xmlrpc_client.ProtocolError):
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self._reload_cache()
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else:
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self._init_cache()
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self._cache[self.cache_key]['profiles'] = data
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return self._cache[self.cache_key]['profiles']
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def _get_systems(self):
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if not self.use_cache or 'systems' not in self._cache.get(self.cache_key, {}):
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c = self._get_connection()
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try:
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if self.token is not None:
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data = c.get_systems(self.token)
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else:
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data = c.get_systems()
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except (socket.gaierror, socket.error, xmlrpc_client.ProtocolError):
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self._reload_cache()
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else:
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self._init_cache()
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self._cache[self.cache_key]['systems'] = data
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return self._cache[self.cache_key]['systems']
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def _add_safe_group_name(self, group, child=None):
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group_name = self.inventory.add_group(to_safe_group_name('%s%s' % (self.get_option('group_prefix'), group.lower().replace(" ", ""))))
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if child is not None:
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self.inventory.add_child(group_name, child)
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return group_name
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def _exclude_profile(self, profile):
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if self.include_profiles:
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return profile not in self.include_profiles
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else:
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return profile in self.exclude_profiles
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def parse(self, inventory, loader, path, cache=True):
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super(InventoryModule, self).parse(inventory, loader, path)
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# read config from file, this sets 'options'
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self._read_config_data(path)
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# get connection host
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self.cobbler_url = self.get_option('url')
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self.cache_key = self.get_cache_key(path)
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self.use_cache = cache and self.get_option('cache')
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self.exclude_profiles = self.get_option('exclude_profiles')
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self.include_profiles = self.get_option('include_profiles')
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self.group_by = self.get_option('group_by')
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for profile in self._get_profiles():
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if profile['parent']:
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self.display.vvvv('Processing profile %s with parent %s\n' % (profile['name'], profile['parent']))
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if not self._exclude_profile(profile['parent']):
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parent_group_name = self._add_safe_group_name(profile['parent'])
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self.display.vvvv('Added profile parent group %s\n' % parent_group_name)
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if not self._exclude_profile(profile['name']):
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group_name = self._add_safe_group_name(profile['name'])
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self.display.vvvv('Added profile group %s\n' % group_name)
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self.inventory.add_child(parent_group_name, group_name)
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else:
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self.display.vvvv('Processing profile %s without parent\n' % profile['name'])
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# Create a heirarchy of profile names
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profile_elements = profile['name'].split('-')
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i = 0
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while i < len(profile_elements) - 1:
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profile_group = '-'.join(profile_elements[0:i + 1])
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profile_group_child = '-'.join(profile_elements[0:i + 2])
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if self._exclude_profile(profile_group):
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self.display.vvvv('Excluding profile %s\n' % profile_group)
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break
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group_name = self._add_safe_group_name(profile_group)
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self.display.vvvv('Added profile group %s\n' % group_name)
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child_group_name = self._add_safe_group_name(profile_group_child)
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self.display.vvvv('Added profile child group %s to %s\n' % (child_group_name, group_name))
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self.inventory.add_child(group_name, child_group_name)
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i = i + 1
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# Add default group for this inventory if specified
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self.group = to_safe_group_name(self.get_option('group'))
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if self.group is not None and self.group != '':
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self.inventory.add_group(self.group)
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self.display.vvvv('Added site group %s\n' % self.group)
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for host in self._get_systems():
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# Get the FQDN for the host and add it to the right groups
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hostname = host['hostname'] # None
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interfaces = host['interfaces']
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if self._exclude_profile(host['profile']):
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self.display.vvvv('Excluding host %s in profile %s\n' % (host['name'], host['profile']))
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continue
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# hostname is often empty for non-static IP hosts
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if hostname == '':
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for (iname, ivalue) in iteritems(interfaces):
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if ivalue['management'] or not ivalue['static']:
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this_dns_name = ivalue.get('dns_name', None)
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if this_dns_name is not None and this_dns_name != "":
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hostname = this_dns_name
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self.display.vvvv('Set hostname to %s from %s\n' % (hostname, iname))
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if hostname == '':
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self.display.vvvv('Cannot determine hostname for host %s, skipping\n' % host['name'])
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continue
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self.inventory.add_host(hostname)
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self.display.vvvv('Added host %s hostname %s\n' % (host['name'], hostname))
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# Add host to profile group
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group_name = self._add_safe_group_name(host['profile'], child=hostname)
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self.display.vvvv('Added host %s to profile group %s\n' % (hostname, group_name))
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# Add host to groups specified by group_by fields
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for group_by in self.group_by:
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if host[group_by] == '<<inherit>>':
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groups = []
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else:
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groups = [host[group_by]] if isinstance(host[group_by], str) else host[group_by]
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for group in groups:
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group_name = self._add_safe_group_name(group, child=hostname)
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self.display.vvvv('Added host %s to group_by %s group %s\n' % (hostname, group_by, group_name))
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# Add to group for this inventory
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if self.group is not None:
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self.inventory.add_child(self.group, hostname)
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# Add host variables
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if self.get_option('want_facts'):
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try:
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self.inventory.set_variable(hostname, 'cobbler', host)
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except ValueError as e:
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self.display.warning("Could not set host info for %s: %s" % (hostname, to_text(e)))
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