# -*- coding: utf-8 -*-
# Copyright (c) 2021, Cliff Hults <cliff.hlts@gmail.com>
# Copyright (c) 2021 Ansible Project
# GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
# SPDX-License-Identifier: GPL-3.0-or-later
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
DOCUMENTATION = '''
name: icinga2
short_description: Icinga2 inventory source
version_added: 3.7.0
author:
- Cliff Hults (@BongoEADGC6) <cliff.hults@gmail.com>
description:
- Get inventory hosts from the Icinga2 API.
- "Uses a configuration file as an inventory source, it must end in
C(.icinga2.yml) or C(.icinga2.yaml)."
extends_documentation_fragment:
- constructed
options:
strict:
version_added: 4.4.0
compose:
version_added: 4.4.0
groups:
version_added: 4.4.0
keyed_groups:
version_added: 4.4.0
plugin:
description: Name of the plugin.
required: true
type: string
choices: ['community.general.icinga2']
url:
description: Root URL of Icinga2 API.
type: string
required: true
user:
description: Username to query the API.
type: string
required: true
password:
description: Password to query the API.
type: string
required: true
host_filter:
description:
- An Icinga2 API valid host filter. Leave blank for no filtering
type: string
required: false
validate_certs:
description: Enables or disables SSL certificate verification.
type: boolean
default: true
inventory_attr:
description:
- Allows the override of the inventory name based on different attributes.
- This allows for changing the way limits are used.
- The current default, C(address), is sometimes not unique or present. We recommend to use C(name) instead.
type: string
default: address
choices: ['name', 'display_name', 'address']
version_added: 4.2.0
'''
EXAMPLES = r'''
# my.icinga2.yml
plugin: community.general.icinga2
url: http://localhost:5665
user: ansible
password: secure
host_filter: \"linux-servers\" in host.groups
validate_certs: false
inventory_attr: name
groups:
# simple name matching
webservers: inventory_hostname.startswith('web')
# using icinga2 template
databaseservers: "'db-template' in (icinga2_attributes.templates|list)"
compose:
# set all icinga2 attributes to a host variable 'icinga2_attrs'
icinga2_attrs: icinga2_attributes
# set 'ansible_user' and 'ansible_port' from icinga2 host vars
ansible_user: icinga2_attributes.vars.ansible_user
ansible_port: icinga2_attributes.vars.ansible_port | default(22)
'''
import json
from ansible.errors import AnsibleParserError
from ansible.plugins.inventory import BaseInventoryPlugin, Constructable
from ansible.module_utils.urls import open_url
from ansible.module_utils.six.moves.urllib.error import HTTPError
class InventoryModule(BaseInventoryPlugin, Constructable):
''' Host inventory parser for ansible using Icinga2 as source. '''
NAME = 'community.general.icinga2'
def __init__(self):
super(InventoryModule, self).__init__()
# from config
self.icinga2_url = None
self.icinga2_user = None
self.icinga2_password = None
self.ssl_verify = None
self.host_filter = None
self.inventory_attr = 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(('icinga2.yaml', 'icinga2.yml')):
valid = True
else:
self.display.vvv('Skipping due to inventory source not ending in "icinga2.yaml" nor "icinga2.yml"')
return valid
def _api_connect(self):
self.headers = {
'User-Agent': "ansible-icinga2-inv",
'Accept': "application/json",
}
api_status_url = self.icinga2_url + "/status"
request_args = {
'headers': self.headers,
'url_username': self.icinga2_user,
'url_password': self.icinga2_password,
'validate_certs': self.ssl_verify
}
open_url(api_status_url, **request_args)
def _post_request(self, request_url, data=None):
self.display.vvv("Requested URL: %s" % request_url)
request_args = {
'headers': self.headers,
'url_username': self.icinga2_user,
'url_password': self.icinga2_password,
'validate_certs': self.ssl_verify
}
if data is not None:
request_args['data'] = json.dumps(data)
self.display.vvv("Request Args: %s" % request_args)
try:
response = open_url(request_url, **request_args)
except HTTPError as e:
try:
error_body = json.loads(e.read().decode())
self.display.vvv("Error returned: {0}".format(error_body))
except Exception:
error_body = {"status": None}
if e.code == 404 and error_body.get('status') == "No objects found.":
raise AnsibleParserError("Host filter returned no data. Please confirm your host_filter value is valid")
raise AnsibleParserError("Unexpected data returned: {0} -- {1}".format(e, error_body))
response_body = response.read()
json_data = json.loads(response_body.decode('utf-8'))
self.display.vvv("Returned Data: %s" % json.dumps(json_data, indent=4, sort_keys=True))
if 200 <= response.status <= 299:
return json_data
if response.status == 404 and json_data['status'] == "No objects found.":
raise AnsibleParserError(
"API returned no data -- Response: %s - %s"
% (response.status, json_data['status']))
if response.status == 401:
raise AnsibleParserError(
"API was unable to complete query -- Response: %s - %s"
% (response.status, json_data['status']))
if response.status == 500:
raise AnsibleParserError(
"API Response - %s - %s"
% (json_data['status'], json_data['errors']))
raise AnsibleParserError(
"Unexpected data returned - %s - %s"
% (json_data['status'], json_data['errors']))
def _query_hosts(self, hosts=None, attrs=None, joins=None, host_filter=None):
query_hosts_url = "{0}/objects/hosts".format(self.icinga2_url)
self.headers['X-HTTP-Method-Override'] = 'GET'
data_dict = dict()
if hosts:
data_dict['hosts'] = hosts
if attrs is not None:
data_dict['attrs'] = attrs
if joins is not None:
data_dict['joins'] = joins
if host_filter is not None:
data_dict['filter'] = host_filter.replace("\\\"", "\"")
self.display.vvv(host_filter)
host_dict = self._post_request(query_hosts_url, data_dict)
return host_dict['results']
def get_inventory_from_icinga(self):
"""Query for all hosts """
self.display.vvv("Querying Icinga2 for inventory")
query_args = {
"attrs": ["address", "address6", "name", "display_name", "state_type", "state", "templates", "groups", "vars", "zone"],
}
if self.host_filter is not None:
query_args['host_filter'] = self.host_filter
# Icinga2 API Call
results_json = self._query_hosts(**query_args)
# Manipulate returned API data to Ansible inventory spec
ansible_inv = self._convert_inv(results_json)
return ansible_inv
def _apply_constructable(self, name, variables):
strict = self.get_option('strict')
self._add_host_to_composed_groups(self.get_option('groups'), variables, name, strict=strict)
self._add_host_to_keyed_groups(self.get_option('keyed_groups'), variables, name, strict=strict)
self._set_composite_vars(self.get_option('compose'), variables, name, strict=strict)
def _populate(self):
groups = self._to_json(self.get_inventory_from_icinga())
return groups
def _to_json(self, in_dict):
"""Convert dictionary to JSON"""
return json.dumps(in_dict, sort_keys=True, indent=2)
def _convert_inv(self, json_data):
"""Convert Icinga2 API data to JSON format for Ansible"""
groups_dict = {"_meta": {"hostvars": {}}}
for entry in json_data:
host_attrs = entry['attrs']
if self.inventory_attr == "name":
host_name = entry.get('name')
if self.inventory_attr == "address":
# When looking for address for inventory, if missing fallback to object name
if host_attrs.get('address', '') != '':
host_name = host_attrs.get('address')
else:
host_name = entry.get('name')
if self.inventory_attr == "display_name":
host_name = host_attrs.get('display_name')
if host_attrs['state'] == 0:
host_attrs['state'] = 'on'
else:
host_attrs['state'] = 'off'
host_groups = host_attrs.get('groups')
self.inventory.add_host(host_name)
for group in host_groups:
if group not in self.inventory.groups.keys():
self.inventory.add_group(group)
self.inventory.add_child(group, host_name)
# If the address attribute is populated, override ansible_host with the value
if host_attrs.get('address') != '':
self.inventory.set_variable(host_name, 'ansible_host', host_attrs.get('address'))
self.inventory.set_variable(host_name, 'hostname', entry.get('name'))
self.inventory.set_variable(host_name, 'display_name', host_attrs.get('display_name'))
self.inventory.set_variable(host_name, 'state',
host_attrs['state'])
self.inventory.set_variable(host_name, 'state_type',
host_attrs['state_type'])
# Adds all attributes to a variable 'icinga2_attributes'
construct_vars = dict(self.inventory.get_host(host_name).get_vars())
construct_vars['icinga2_attributes'] = host_attrs
self._apply_constructable(host_name, construct_vars)
return groups_dict
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)
# Store the options from the YAML file
self.icinga2_url = self.get_option('url').rstrip('/') + '/v1'
self.icinga2_user = self.get_option('user')
self.icinga2_password = self.get_option('password')
self.ssl_verify = self.get_option('validate_certs')
self.host_filter = self.get_option('host_filter')
self.inventory_attr = self.get_option('inventory_attr')
# Not currently enabled
# self.cache_key = self.get_cache_key(path)
# self.use_cache = cache and self.get_option('cache')
# Test connection to API
self._api_connect()
# Call our internal helper to populate the dynamic inventory
self._populate()