ansible/cloud/amazon/route53.py
Brian Coca 8b290c6274 Merge pull request #831 from j-carl/feature-route53-nameserver
List the name servers of a zone. Fixes #801
2015-06-30 00:11:11 -04:00

412 lines
14 KiB
Python

#!/usr/bin/python
# This file is part of Ansible
#
# Ansible is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Ansible is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
DOCUMENTATION = '''
---
module: route53
version_added: "1.3"
short_description: add or delete entries in Amazons Route53 DNS service
description:
- Creates and deletes DNS records in Amazons Route53 service
options:
command:
description:
- Specifies the action to take.
required: true
default: null
aliases: []
choices: [ 'get', 'create', 'delete' ]
zone:
description:
- The DNS zone to modify
required: true
default: null
aliases: []
record:
description:
- The full DNS record to create or delete
required: true
default: null
aliases: []
ttl:
description:
- The TTL to give the new record
required: false
default: 3600 (one hour)
aliases: []
type:
description:
- The type of DNS record to create
required: true
default: null
aliases: []
choices: [ 'A', 'CNAME', 'MX', 'AAAA', 'TXT', 'PTR', 'SRV', 'SPF', 'NS' ]
alias:
description:
- Indicates if this is an alias record.
required: false
version_added: 1.9
default: False
aliases: []
choices: [ 'True', 'False' ]
alias_hosted_zone_id:
description:
- The hosted zone identifier.
required: false
version_added: 1.9
default: null
aliases: []
value:
description:
- The new value when creating a DNS record. Multiple comma-spaced values are allowed for non-alias records. When deleting a record all values for the record must be specified or Route53 will not delete it.
required: false
default: null
aliases: []
overwrite:
description:
- Whether an existing record should be overwritten on create if values do not match
required: false
default: null
aliases: []
retry_interval:
description:
- In the case that route53 is still servicing a prior request, this module will wait and try again after this many seconds. If you have many domain names, the default of 500 seconds may be too long.
required: false
default: 500
aliases: []
private_zone:
description:
- If set to true, the private zone matching the requested name within the domain will be used if there are both public and private zones. The default is to use the public zone.
required: false
default: false
version_added: "1.9"
identifier:
description:
- Weighted and latency-based resource record sets only. An identifier
that differentiates among multiple resource record sets that have the
same combination of DNS name and type.
required: false
default: null
version_added: "2.0"
weight:
description:
- Weighted resource record sets only. Among resource record sets that
have the same combination of DNS name and type, a value that
determines what portion of traffic for the current resource record set
is routed to the associated location.
required: false
default: null
version_added: "2.0"
region:
description:
- Latency-based resource record sets only Among resource record sets
that have the same combination of DNS name and type, a value that
determines which region this should be associated with for the
latency-based routing
required: false
default: null
version_added: "2.0"
health_check:
description:
- Health check to associate with this record
required: false
default: null
version_added: "2.0"
failover:
description:
- Failover resource record sets only. Whether this is the primary or
secondary resource record set.
required: false
default: null
version_added: "2.0"
author: "Bruce Pennypacker (@bpennypacker)"
extends_documentation_fragment: aws
'''
# FIXME: the command stuff should have a more state like configuration alias -- MPD
EXAMPLES = '''
# Add new.foo.com as an A record with 3 IPs
- route53:
command: create
zone: foo.com
record: new.foo.com
type: A
ttl: 7200
value: 1.1.1.1,2.2.2.2,3.3.3.3
# Retrieve the details for new.foo.com
- route53:
command: get
zone: foo.com
record: new.foo.com
type: A
register: rec
# Delete new.foo.com A record using the results from the get command
- route53:
command: delete
zone: foo.com
record: "{{ rec.set.record }}"
ttl: "{{ rec.set.ttl }}"
type: "{{ rec.set.type }}"
value: "{{ rec.set.value }}"
# Add an AAAA record. Note that because there are colons in the value
# that the entire parameter list must be quoted:
- route53:
command: "create"
zone: "foo.com"
record: "localhost.foo.com"
type: "AAAA"
ttl: "7200"
value: "::1"
# Add a TXT record. Note that TXT and SPF records must be surrounded
# by quotes when sent to Route 53:
- route53:
command: "create"
zone: "foo.com"
record: "localhost.foo.com"
type: "TXT"
ttl: "7200"
value: '"bar"'
# Add an alias record that points to an Amazon ELB:
- route53:
command=create
zone=foo.com
record=elb.foo.com
type=A
value="{{ elb_dns_name }}"
alias=True
alias_hosted_zone_id="{{ elb_zone_id }}"
# Use a routing policy to distribute traffic:
- route53:
command: "create"
zone: "foo.com"
record: "www.foo.com"
type: "CNAME"
value: "host1.foo.com"
ttl: 30
# Routing policy
identifier: "host1@www"
weight: 100
health_check: "d994b780-3150-49fd-9205-356abdd42e75"
'''
import time
try:
import boto
import boto.ec2
from boto import route53
from boto.route53 import Route53Connection
from boto.route53.record import Record, ResourceRecordSets
HAS_BOTO = True
except ImportError:
HAS_BOTO = False
def get_zone_by_name(conn, module, zone_name, want_private):
"""Finds a zone by name"""
for zone in conn.get_zones():
# only save this zone id if the private status of the zone matches
# the private_zone_in boolean specified in the params
private_zone = module.boolean(zone.config.get('PrivateZone', False))
if private_zone == want_private and zone.name == zone_name:
return zone
return None
def commit(changes, retry_interval):
"""Commit changes, but retry PriorRequestNotComplete errors."""
retry = 10
while True:
try:
retry -= 1
return changes.commit()
except boto.route53.exception.DNSServerError, e:
code = e.body.split("<Code>")[1]
code = code.split("</Code>")[0]
if code != 'PriorRequestNotComplete' or retry < 0:
raise e
time.sleep(float(retry_interval))
def main():
argument_spec = ec2_argument_spec()
argument_spec.update(dict(
command = dict(choices=['get', 'create', 'delete'], required=True),
zone = dict(required=True),
record = dict(required=True),
ttl = dict(required=False, type='int', default=3600),
type = dict(choices=['A', 'CNAME', 'MX', 'AAAA', 'TXT', 'PTR', 'SRV', 'SPF', 'NS'], required=True),
alias = dict(required=False, type='bool'),
alias_hosted_zone_id = dict(required=False),
value = dict(required=False),
overwrite = dict(required=False, type='bool'),
retry_interval = dict(required=False, default=500),
private_zone = dict(required=False, type='bool', default=False),
identifier = dict(required=False),
weight = dict(required=False, type='int'),
region = dict(required=False),
health_check = dict(required=False),
failover = dict(required=False),
)
)
module = AnsibleModule(argument_spec=argument_spec)
if not HAS_BOTO:
module.fail_json(msg='boto required for this module')
command_in = module.params.get('command')
zone_in = module.params.get('zone').lower()
ttl_in = module.params.get('ttl')
record_in = module.params.get('record').lower()
type_in = module.params.get('type')
value_in = module.params.get('value')
alias_in = module.params.get('alias')
alias_hosted_zone_id_in = module.params.get('alias_hosted_zone_id')
retry_interval_in = module.params.get('retry_interval')
private_zone_in = module.params.get('private_zone')
identifier_in = module.params.get('identifier')
weight_in = module.params.get('weight')
region_in = module.params.get('region')
health_check_in = module.params.get('health_check')
failover_in = module.params.get('failover')
region, ec2_url, aws_connect_kwargs = get_aws_connection_info(module)
value_list = ()
if type(value_in) is str:
if value_in:
value_list = sorted([s.strip() for s in value_in.split(',')])
elif type(value_in) is list:
value_list = sorted(value_in)
if zone_in[-1:] != '.':
zone_in += "."
if record_in[-1:] != '.':
record_in += "."
if command_in == 'create' or command_in == 'delete':
if not value_in:
module.fail_json(msg = "parameter 'value' required for create/delete")
elif alias_in:
if len(value_list) != 1:
module.fail_json(msg = "parameter 'value' must contain a single dns name for alias create/delete")
elif not alias_hosted_zone_id_in:
module.fail_json(msg = "parameter 'alias_hosted_zone_id' required for alias create/delete")
# connect to the route53 endpoint
try:
conn = Route53Connection(**aws_connect_kwargs)
except boto.exception.BotoServerError, e:
module.fail_json(msg = e.error_message)
# Find the named zone ID
zone = get_zone_by_name(conn, module, zone_in, private_zone_in)
# Verify that the requested zone is already defined in Route53
if zone is None:
errmsg = "Zone %s does not exist in Route53" % zone_in
module.fail_json(msg = errmsg)
record = {}
found_record = False
wanted_rset = Record(name=record_in, type=type_in, ttl=ttl_in,
identifier=identifier_in, weight=weight_in, region=region_in,
health_check=health_check_in, failover=failover_in)
for v in value_list:
if alias_in:
wanted_rset.set_alias(alias_hosted_zone_id_in, v)
else:
wanted_rset.add_value(v)
sets = conn.get_all_rrsets(zone.id, name=record_in, type=type_in, identifier=identifier_in)
for rset in sets:
# Due to a bug in either AWS or Boto, "special" characters are returned as octals, preventing round
# tripping of things like * and @.
decoded_name = rset.name.replace(r'\052', '*')
decoded_name = decoded_name.replace(r'\100', '@')
if rset.type == type_in and decoded_name.lower() == record_in.lower() and rset.identifier == identifier_in:
found_record = True
record['zone'] = zone_in
record['type'] = rset.type
record['record'] = decoded_name
record['ttl'] = rset.ttl
record['value'] = ','.join(sorted(rset.resource_records))
record['values'] = sorted(rset.resource_records)
record['identifier'] = rset.identifier
record['weight'] = rset.weight
record['region'] = rset.region
record['failover'] = rset.failover
record['health_check'] = rset.health_check
if rset.alias_dns_name:
record['alias'] = True
record['value'] = rset.alias_dns_name
record['values'] = [rset.alias_dns_name]
record['alias_hosted_zone_id'] = rset.alias_hosted_zone_id
else:
record['alias'] = False
record['value'] = ','.join(sorted(rset.resource_records))
record['values'] = sorted(rset.resource_records)
if command_in == 'create' and rset.to_xml() == wanted_rset.to_xml():
module.exit_json(changed=False)
break
if command_in == 'get':
if type_in == 'NS':
ns = record['values']
else:
# Retrieve name servers associated to the zone.
ns = conn.get_zone(zone_in).get_nameservers()
module.exit_json(changed=False, set=record, nameservers=ns)
if command_in == 'delete' and not found_record:
module.exit_json(changed=False)
changes = ResourceRecordSets(conn, zone.id)
if command_in == 'create' or command_in == 'delete':
if command_in == 'create' and found_record:
if not module.params['overwrite']:
module.fail_json(msg = "Record already exists with different value. Set 'overwrite' to replace it")
command = 'UPSERT'
else:
command = command_in.upper()
changes.add_change_record(command, wanted_rset)
try:
result = commit(changes, retry_interval_in)
except boto.route53.exception.DNSServerError, e:
txt = e.body.split("<Message>")[1]
txt = txt.split("</Message>")[0]
module.fail_json(msg = txt)
module.exit_json(changed=True)
# import module snippets
from ansible.module_utils.basic import *
from ansible.module_utils.ec2 import *
main()