#!/usr/bin/python # -*- coding: utf-8 -*- # # Copyright (c) 2018, Simon Weald <ansible@simonweald.com> # 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 = ''' --- module: memset_zone author: "Simon Weald (@glitchcrab)" short_description: Creates and deletes Memset DNS zones. notes: - Zones can be thought of as a logical group of domains, all of which share the same DNS records (i.e. they point to the same IP). An API key generated via the Memset customer control panel is needed with the following minimum scope - I(dns.zone_create), I(dns.zone_delete), I(dns.zone_list). description: - Manage DNS zones in a Memset account. options: state: required: true description: - Indicates desired state of resource. type: str choices: [ absent, present ] api_key: required: true description: - The API key obtained from the Memset control panel. type: str name: required: true description: - The zone nickname; usually the same as the main domain. Ensure this value has at most 250 characters. type: str aliases: [ nickname ] ttl: description: - The default TTL for all records created in the zone. This must be a valid int from U(https://www.memset.com/apidocs/methods_dns.html#dns.zone_create). type: int choices: [ 0, 300, 600, 900, 1800, 3600, 7200, 10800, 21600, 43200, 86400 ] force: required: false default: false type: bool description: - Forces deletion of a zone and all zone domains/zone records it contains. ''' EXAMPLES = ''' # Create the zone 'test' - name: Create zone community.general.memset_zone: name: test state: present api_key: 5eb86c9196ab03919abcf03857163741 ttl: 300 delegate_to: localhost # Force zone deletion - name: Force delete zone community.general.memset_zone: name: test state: absent api_key: 5eb86c9196ab03919abcf03857163741 force: true delegate_to: localhost ''' RETURN = ''' memset_api: description: Zone info from the Memset API returned: when state == present type: complex contains: domains: description: List of domains in this zone returned: always type: list sample: [] id: description: Zone id returned: always type: str sample: "b0bb1ce851aeea6feeb2dc32fe83bf9c" nickname: description: Zone name returned: always type: str sample: "example.com" records: description: List of DNS records for domains in this zone returned: always type: list sample: [] ttl: description: Default TTL for domains in this zone returned: always type: int sample: 300 ''' from ansible.module_utils.basic import AnsibleModule from ansible_collections.community.general.plugins.module_utils.memset import check_zone from ansible_collections.community.general.plugins.module_utils.memset import get_zone_id from ansible_collections.community.general.plugins.module_utils.memset import memset_api_call def api_validation(args=None): ''' Perform some validation which will be enforced by Memset's API (see: https://www.memset.com/apidocs/methods_dns.html#dns.zone_record_create) ''' # zone domain length must be less than 250 chars. if len(args['name']) > 250: stderr = 'Zone name must be less than 250 characters in length.' module.fail_json(failed=True, msg=stderr, stderr=stderr) def check(args=None): ''' Support for running with check mode. ''' retvals = dict() api_method = 'dns.zone_list' has_failed, _msg, response = memset_api_call(api_key=args['api_key'], api_method=api_method) zone_exists, counter = check_zone(data=response, name=args['name']) # set changed to true if the operation would cause a change. has_changed = ((zone_exists and args['state'] == 'absent') or (not zone_exists and args['state'] == 'present')) retvals['changed'] = has_changed retvals['failed'] = has_failed return retvals def create_zone(args=None, zone_exists=None, payload=None): ''' At this point we already know whether the zone exists, so we just need to make the API reflect the desired state. ''' has_changed, has_failed = False, False msg, memset_api = None, None if not zone_exists: payload['ttl'] = args['ttl'] payload['nickname'] = args['name'] api_method = 'dns.zone_create' has_failed, msg, response = memset_api_call(api_key=args['api_key'], api_method=api_method, payload=payload) if not has_failed: has_changed = True else: api_method = 'dns.zone_list' _has_failed, _msg, response = memset_api_call(api_key=args['api_key'], api_method=api_method) for zone in response.json(): if zone['nickname'] == args['name']: break if zone['ttl'] != args['ttl']: # update the zone if the desired TTL is different. payload['id'] = zone['id'] payload['ttl'] = args['ttl'] api_method = 'dns.zone_update' has_failed, msg, response = memset_api_call(api_key=args['api_key'], api_method=api_method, payload=payload) if not has_failed: has_changed = True # populate return var with zone info. api_method = 'dns.zone_list' _has_failed, _msg, response = memset_api_call(api_key=args['api_key'], api_method=api_method) zone_exists, msg, counter, zone_id = get_zone_id(zone_name=args['name'], current_zones=response.json()) if zone_exists: payload = dict() payload['id'] = zone_id api_method = 'dns.zone_info' _has_failed, _msg, response = memset_api_call(api_key=args['api_key'], api_method=api_method, payload=payload) memset_api = response.json() return has_failed, has_changed, memset_api, msg def delete_zone(args=None, zone_exists=None, payload=None): ''' Deletion requires extra sanity checking as the zone cannot be deleted if it contains domains or records. Setting force=true will override this behaviour. ''' has_changed, has_failed = False, False msg, memset_api = None, None if zone_exists: api_method = 'dns.zone_list' _has_failed, _msg, response = memset_api_call(api_key=args['api_key'], api_method=api_method, payload=payload) counter = 0 for zone in response.json(): if zone['nickname'] == args['name']: counter += 1 if counter == 1: for zone in response.json(): if zone['nickname'] == args['name']: zone_id = zone['id'] domain_count = len(zone['domains']) record_count = len(zone['records']) if (domain_count > 0 or record_count > 0) and args['force'] is False: # we need to fail out if force was not explicitly set. stderr = 'Zone contains domains or records and force was not used.' has_failed = True has_changed = False module.fail_json(failed=has_failed, changed=has_changed, msg=msg, stderr=stderr, rc=1) api_method = 'dns.zone_delete' payload['id'] = zone_id has_failed, msg, response = memset_api_call(api_key=args['api_key'], api_method=api_method, payload=payload) if not has_failed: has_changed = True # return raw JSON from API in named var and then unset msg var so we aren't returning the same thing twice. memset_api = msg msg = None else: # zone names are not unique, so we cannot safely delete the requested # zone at this time. has_failed = True has_changed = False msg = 'Unable to delete zone as multiple zones with the same name exist.' else: has_failed, has_changed = False, False return has_failed, has_changed, memset_api, msg def create_or_delete(args=None): ''' We need to perform some initial sanity checking and also look up required info before handing it off to create or delete. ''' retvals, payload = dict(), dict() has_failed, has_changed = False, False msg, memset_api, stderr = None, None, None # get the zones and check if the relevant zone exists. api_method = 'dns.zone_list' _has_failed, _msg, response = memset_api_call(api_key=args['api_key'], api_method=api_method) if _has_failed: # this is the first time the API is called; incorrect credentials will # manifest themselves at this point so we need to ensure the user is # informed of the reason. retvals['failed'] = _has_failed retvals['msg'] = _msg return retvals zone_exists, _msg, counter, _zone_id = get_zone_id(zone_name=args['name'], current_zones=response.json()) if args['state'] == 'present': has_failed, has_changed, memset_api, msg = create_zone(args=args, zone_exists=zone_exists, payload=payload) elif args['state'] == 'absent': has_failed, has_changed, memset_api, msg = delete_zone(args=args, zone_exists=zone_exists, payload=payload) retvals['failed'] = has_failed retvals['changed'] = has_changed for val in ['msg', 'stderr', 'memset_api']: if val is not None: retvals[val] = eval(val) return retvals def main(): global module module = AnsibleModule( argument_spec=dict( state=dict(required=True, choices=['present', 'absent'], type='str'), api_key=dict(required=True, type='str', no_log=True), name=dict(required=True, aliases=['nickname'], type='str'), ttl=dict(required=False, default=0, choices=[0, 300, 600, 900, 1800, 3600, 7200, 10800, 21600, 43200, 86400], type='int'), force=dict(required=False, default=False, type='bool') ), supports_check_mode=True ) # populate the dict with the user-provided vars. args = dict() for key, arg in module.params.items(): args[key] = arg args['check_mode'] = module.check_mode # validate some API-specific limitations. api_validation(args=args) if module.check_mode: retvals = check(args) else: retvals = create_or_delete(args) if retvals['failed']: module.fail_json(**retvals) else: module.exit_json(**retvals) if __name__ == '__main__': main()