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