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# vim: tabstop=4 shiftwidth=4 softtabstop=4
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from heat.engine import clients
from heat.common import exception
from heat.openstack.common import log as logging
from heat.engine import properties
from heat.engine import resource
from heat.engine.resources.vpc import VPC
logger = logging.getLogger(__name__)
class Subnet(resource.Resource):
PROPERTIES = (
AVAILABILITY_ZONE, CIDR_BLOCK, VPC_ID, TAGS,
) = (
'AvailabilityZone', 'CidrBlock', 'VpcId', 'Tags',
)
_TAG_KEYS = (
TAG_KEY, TAG_VALUE,
) = (
'Key', 'Value',
)
properties_schema = {
AVAILABILITY_ZONE: properties.Schema(
properties.Schema.STRING,
_('Availability zone in which you want the subnet.')
),
CIDR_BLOCK: properties.Schema(
properties.Schema.STRING,
_('CIDR block to apply to subnet.'),
required=True
),
VPC_ID: properties.Schema(
properties.Schema.STRING,
_('Ref structure that contains the ID of the VPC on which you '
'want to create the subnet.'),
required=True
),
TAGS: properties.Schema(
properties.Schema.LIST,
schema=properties.Schema(
properties.Schema.MAP,
_('List of tags to attach to this resource.'),
schema={
TAG_KEY: properties.Schema(
properties.Schema.STRING,
required=True
),
TAG_VALUE: properties.Schema(
properties.Schema.STRING,
required=True
),
},
implemented=False,
)
),
}
def handle_create(self):
client = self.neutron()
# TODO(sbaker) Verify that this CidrBlock is within the vpc CidrBlock
network_id = self.properties.get(self.VPC_ID)
props = {
'network_id': network_id,
'cidr': self.properties.get(self.CIDR_BLOCK),
'name': self.physical_resource_name(),
'ip_version': 4
}
subnet = client.create_subnet({'subnet': props})['subnet']
router = VPC.router_for_vpc(self.neutron(), network_id)
if router:
client.add_interface_router(
router['id'],
{'subnet_id': subnet['id']})
self.resource_id_set(subnet['id'])
def handle_delete(self):
from neutronclient.common.exceptions import NeutronClientException
client = self.neutron()
network_id = self.properties.get(self.VPC_ID)
subnet_id = self.resource_id
try:
router = VPC.router_for_vpc(self.neutron(), network_id)
if router:
client.remove_interface_router(
router['id'],
{'subnet_id': subnet_id})
except NeutronClientException as ex:
if ex.status_code != 404:
raise ex
try:
client.delete_subnet(subnet_id)
except NeutronClientException as ex:
if ex.status_code != 404:
raise ex
def FnGetAtt(self, key):
if key == 'AvailabilityZone':
return self.properties.get(key)
raise exception.InvalidTemplateAttribute(resource=self.name, key=key)
def resource_mapping():
if clients.neutronclient is None:
return {}
return {
'AWS::EC2::Subnet': Subnet,
}
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