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