181 lines
5.8 KiB
Python
181 lines
5.8 KiB
Python
#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import six
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from heat.common import exception
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from heat.common.i18n import _
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from heat.engine import attributes
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from heat.engine import constraints
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from heat.engine import properties
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from heat.engine import resource
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from heat.engine import support
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class DesignateZone(resource.Resource):
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"""Heat Template Resource for Designate Zone.
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Designate provides DNS-as-a-Service services for OpenStack. So, zone, part
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of domain is a realm with an identification string, unique in DNS.
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"""
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support_status = support.SupportStatus(
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version='8.0.0')
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PROPERTIES = (
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NAME, TTL, DESCRIPTION, EMAIL, TYPE, MASTERS
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) = (
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'name', 'ttl', 'description', 'email', 'type', 'masters'
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)
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ATTRIBUTES = (
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SERIAL,
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) = (
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'serial',
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)
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TYPES = (
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PRIMARY, SECONDARY
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) = (
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'PRIMARY', 'SECONDARY'
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)
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properties_schema = {
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# Based on RFC 1035, length of name is set to max of 255
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NAME: properties.Schema(
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properties.Schema.STRING,
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_('DNS Name for the zone.'),
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required=True,
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constraints=[constraints.Length(max=255)]
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),
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# Based on RFC 1035, range for ttl is set to 1 to signed 32 bit number
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TTL: properties.Schema(
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properties.Schema.INTEGER,
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_('Time To Live (Seconds) for the zone.'),
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update_allowed=True,
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constraints=[constraints.Range(min=1,
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max=2147483647)]
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),
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# designate mandates to the max length of 160 for description
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DESCRIPTION: properties.Schema(
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properties.Schema.STRING,
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_('Description of zone.'),
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update_allowed=True,
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constraints=[constraints.Length(max=160)]
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),
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EMAIL: properties.Schema(
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properties.Schema.STRING,
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_('E-mail for the zone. Used in SOA records for the zone. '
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'It is required for PRIMARY Type, otherwise ignored.'),
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update_allowed=True,
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),
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TYPE: properties.Schema(
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properties.Schema.STRING,
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_('Type of zone. PRIMARY is controlled by Designate, SECONDARY '
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'zones are slaved from another DNS Server.'),
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default=PRIMARY,
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constraints=[constraints.AllowedValues(
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allowed=TYPES)]
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),
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MASTERS: properties.Schema(
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properties.Schema.LIST,
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_('The servers to slave from to get DNS information and is '
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'mandatory for zone type SECONDARY, otherwise ignored.'),
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update_allowed=True
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)
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}
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attributes_schema = {
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SERIAL: attributes.Schema(
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_("DNS zone serial number."),
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type=attributes.Schema.STRING
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),
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}
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default_client_name = 'designate'
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entity = 'zones'
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def client(self):
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return super(DesignateZone,
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self).client(version=self.client_plugin().V2)
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def validate(self):
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super(DesignateZone, self).validate()
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def raise_invalid_exception(zone_type, prp):
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if self.properties.get(self.TYPE) == zone_type:
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if not self.properties.get(prp):
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msg = _('Property %(prp)s is required for zone type '
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'%(zone_type)s') % {
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"prp": prp,
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"zone_type": zone_type
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}
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raise exception.StackValidationFailed(message=msg)
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raise_invalid_exception(self.PRIMARY, self.EMAIL)
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raise_invalid_exception(self.SECONDARY, self.MASTERS)
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def handle_create(self):
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args = dict((k, v) for k, v in six.iteritems(self.properties) if v)
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args['type_'] = args.pop(self.TYPE)
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zone = self.client().zones.create(**args)
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self.resource_id_set(zone['id'])
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def _check_status_complete(self):
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zone = self.client().zones.get(self.resource_id)
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if zone['status'] == 'ERROR':
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raise exception.ResourceInError(
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resource_status=zone['status'],
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status_reason=_('Error in zone'))
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return zone['status'] != 'PENDING'
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def check_create_complete(self, handler_data=None):
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return self._check_status_complete()
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def handle_update(self, json_snippet, tmpl_diff, prop_diff):
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args = dict()
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for prp in (self.EMAIL, self.TTL, self.DESCRIPTION, self.MASTERS):
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if prop_diff.get(prp):
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args[prp] = prop_diff.get(prp)
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if len(args.keys()) > 0:
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self.client().zones.update(self.resource_id, args)
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def check_update_complete(self, handler_data=None):
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return self._check_status_complete()
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def _resolve_attribute(self, name):
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if self.resource_id is None:
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return
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if name == self.SERIAL:
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zone = self.client().zones.get(self.resource_id)
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return zone[name]
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def check_delete_complete(self, handler_data=None):
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if handler_data:
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with self.client_plugin().ignore_not_found:
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return self._check_status_complete()
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return True
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def resource_mapping():
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return {
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'OS::Designate::Zone': DesignateZone
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}
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