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279 lines
8.4 KiB
Python
279 lines
8.4 KiB
Python
# Copyright (c) 2017 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: scaleway
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plugin_type: inventory
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author:
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- Remy Leone (@sieben)
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short_description: Scaleway inventory source
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description:
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- Get inventory hosts from Scaleway
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options:
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plugin:
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description: token that ensures this is a source file for the 'scaleway' plugin.
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required: True
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choices: ['scaleway']
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regions:
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description: Filter results on a specific Scaleway region
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type: list
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default:
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- ams1
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- par1
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tags:
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description: Filter results on a specific tag
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type: list
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oauth_token:
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required: True
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description: Scaleway OAuth token.
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env:
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# in order of precedence
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- name: SCW_TOKEN
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- name: SCW_API_KEY
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- name: SCW_OAUTH_TOKEN
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hostnames:
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description: List of preference about what to use as an hostname.
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type: list
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default:
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- public_ipv4
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choices:
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- public_ipv4
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- private_ipv4
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- public_ipv6
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- hostname
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- id
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variables:
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description: 'set individual variables: keys are variable names and
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values are templates. Any value returned by the
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L(Scaleway API, https://developer.scaleway.com/#servers-server-get)
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can be used.'
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type: dict
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'''
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EXAMPLES = '''
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# scaleway_inventory.yml file in YAML format
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# Example command line: ansible-inventory --list -i scaleway_inventory.yml
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# use hostname as inventory_hostname
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# use the private IP address to connect to the host
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plugin: scaleway
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regions:
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- ams1
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- par1
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tags:
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- foobar
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hostnames:
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- hostname
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variables:
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ansible_host: private_ip
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state: state
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# use hostname as inventory_hostname and public IP address to connect to the host
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plugin: scaleway
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hostnames:
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- hostname
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regions:
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- par1
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variables:
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ansible_host: public_ip.address
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'''
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import json
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from ansible.errors import AnsibleError
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from ansible.plugins.inventory import BaseInventoryPlugin, Constructable
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from ansible.module_utils.scaleway import SCALEWAY_LOCATION, parse_pagination_link
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from ansible.module_utils.urls import open_url
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from ansible.module_utils._text import to_native
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import ansible.module_utils.six.moves.urllib.parse as urllib_parse
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def _fetch_information(token, url):
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results = []
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paginated_url = url
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while True:
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try:
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response = open_url(paginated_url,
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headers={'X-Auth-Token': token,
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'Content-type': 'application/json'})
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except Exception as e:
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raise AnsibleError("Error while fetching %s: %s" % (url, to_native(e)))
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try:
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raw_json = json.loads(response.read())
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except ValueError:
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raise AnsibleError("Incorrect JSON payload")
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try:
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results.extend(raw_json["servers"])
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except KeyError:
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raise AnsibleError("Incorrect format from the Scaleway API response")
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link = response.headers['Link']
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if not link:
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return results
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relations = parse_pagination_link(link)
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if 'next' not in relations:
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return results
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paginated_url = urllib_parse.urljoin(paginated_url, relations['next'])
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def _build_server_url(api_endpoint):
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return "/".join([api_endpoint, "servers"])
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def extract_public_ipv4(server_info):
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try:
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return server_info["public_ip"]["address"]
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except (KeyError, TypeError):
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return None
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def extract_private_ipv4(server_info):
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try:
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return server_info["private_ip"]
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except (KeyError, TypeError):
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return None
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def extract_hostname(server_info):
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try:
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return server_info["hostname"]
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except (KeyError, TypeError):
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return None
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def extract_server_id(server_info):
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try:
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return server_info["id"]
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except (KeyError, TypeError):
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return None
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def extract_public_ipv6(server_info):
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try:
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return server_info["ipv6"]["address"]
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except (KeyError, TypeError):
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return None
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def extract_tags(server_info):
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try:
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return server_info["tags"]
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except (KeyError, TypeError):
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return None
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def extract_zone(server_info):
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try:
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return server_info["location"]["zone_id"]
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except (KeyError, TypeError):
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return None
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extractors = {
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"public_ipv4": extract_public_ipv4,
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"private_ipv4": extract_private_ipv4,
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"public_ipv6": extract_public_ipv6,
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"hostname": extract_hostname,
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"id": extract_server_id
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}
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class InventoryModule(BaseInventoryPlugin, Constructable):
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NAME = 'scaleway'
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def _fill_host_variables(self, host, server_info):
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targeted_attributes = (
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"arch",
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"commercial_type",
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"id",
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"organization",
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"state",
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"hostname",
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)
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for attribute in targeted_attributes:
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self.inventory.set_variable(host, attribute, server_info[attribute])
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self.inventory.set_variable(host, "tags", server_info["tags"])
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if extract_public_ipv6(server_info=server_info):
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self.inventory.set_variable(host, "public_ipv6", extract_public_ipv6(server_info=server_info))
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if extract_public_ipv4(server_info=server_info):
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self.inventory.set_variable(host, "public_ipv4", extract_public_ipv4(server_info=server_info))
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if extract_private_ipv4(server_info=server_info):
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self.inventory.set_variable(host, "private_ipv4", extract_private_ipv4(server_info=server_info))
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def _get_zones(self, config_zones):
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return set(SCALEWAY_LOCATION.keys()).intersection(config_zones)
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def match_groups(self, server_info, tags):
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server_zone = extract_zone(server_info=server_info)
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server_tags = extract_tags(server_info=server_info)
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# If a server does not have a zone, it means it is archived
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if server_zone is None:
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return set()
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# If no filtering is defined, all tags are valid groups
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if tags is None:
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return set(server_tags).union((server_zone,))
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matching_tags = set(server_tags).intersection(tags)
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if not matching_tags:
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return set()
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else:
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return matching_tags.union((server_zone,))
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def _filter_host(self, host_infos, hostname_preferences):
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for pref in hostname_preferences:
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if extractors[pref](host_infos):
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return extractors[pref](host_infos)
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return None
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def do_zone_inventory(self, zone, token, tags, hostname_preferences):
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self.inventory.add_group(zone)
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zone_info = SCALEWAY_LOCATION[zone]
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url = _build_server_url(zone_info["api_endpoint"])
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raw_zone_hosts_infos = _fetch_information(url=url, token=token)
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for host_infos in raw_zone_hosts_infos:
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hostname = self._filter_host(host_infos=host_infos,
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hostname_preferences=hostname_preferences)
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# No suitable hostname were found in the attributes and the host won't be in the inventory
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if not hostname:
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continue
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groups = self.match_groups(host_infos, tags)
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for group in groups:
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self.inventory.add_group(group=group)
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self.inventory.add_host(group=group, host=hostname)
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self._fill_host_variables(host=hostname, server_info=host_infos)
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# Composed variables
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self._set_composite_vars(self.get_option('variables'), host_infos, hostname, strict=False)
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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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self._read_config_data(path=path)
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config_zones = self.get_option("regions")
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tags = self.get_option("tags")
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token = self.get_option("oauth_token")
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hostname_preference = self.get_option("hostnames")
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for zone in self._get_zones(config_zones):
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self.do_zone_inventory(zone=zone, token=token, tags=tags, hostname_preferences=hostname_preference)
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