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community.general/plugins/modules/cloud/memset/memset_zone.py

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2020-03-09 10:11:07 +01:00
#!/usr/bin/python
# -*- coding: utf-8 -*-
#
# Copyright (c) 2018, Simon Weald <ansible@simonweald.com>
# 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
ANSIBLE_METADATA = {
'metadata_version': '1.1',
'status': ['preview'],
'supported_by': 'community'
}
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.
choices: [ absent, present ]
api_key:
required: true
description:
- The API key obtained from the Memset control panel.
name:
required: true
description:
- The zone nickname; usually the same as the main domain. Ensure this
value has at most 250 characters.
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).
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
memset_zone:
name: test
state: present
api_key: 5eb86c9196ab03919abcf03857163741
ttl: 300
delegate_to: localhost
# Force zone deletion
- name: force delete zone
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()