132 lines
4.0 KiB
Python
132 lines
4.0 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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from heat.engine import attributes
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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.resources.vpc import VPC
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class Subnet(resource.Resource):
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PROPERTIES = (
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AVAILABILITY_ZONE, CIDR_BLOCK, VPC_ID, TAGS,
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) = (
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'AvailabilityZone', 'CidrBlock', 'VpcId', 'Tags',
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)
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_TAG_KEYS = (
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TAG_KEY, TAG_VALUE,
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) = (
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'Key', 'Value',
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)
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ATTRIBUTES = (
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AVAILABILITY_ZONE,
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)
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properties_schema = {
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AVAILABILITY_ZONE: properties.Schema(
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properties.Schema.STRING,
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_('Availability zone in which you want the subnet.')
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),
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CIDR_BLOCK: properties.Schema(
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properties.Schema.STRING,
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_('CIDR block to apply to subnet.'),
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required=True
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),
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VPC_ID: properties.Schema(
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properties.Schema.STRING,
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_('Ref structure that contains the ID of the VPC on which you '
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'want to create the subnet.'),
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required=True
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),
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TAGS: properties.Schema(
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properties.Schema.LIST,
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schema=properties.Schema(
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properties.Schema.MAP,
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_('List of tags to attach to this resource.'),
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schema={
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TAG_KEY: properties.Schema(
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properties.Schema.STRING,
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required=True
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),
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TAG_VALUE: properties.Schema(
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properties.Schema.STRING,
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required=True
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),
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},
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implemented=False,
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)
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),
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}
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attributes_schema = {
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AVAILABILITY_ZONE: attributes.Schema(
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_('Availability Zone of the subnet.')
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),
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}
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def handle_create(self):
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client = self.neutron()
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# TODO(sbaker) Verify that this CidrBlock is within the vpc CidrBlock
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network_id = self.properties.get(self.VPC_ID)
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props = {
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'network_id': network_id,
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'cidr': self.properties.get(self.CIDR_BLOCK),
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'name': self.physical_resource_name(),
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'ip_version': 4
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}
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subnet = client.create_subnet({'subnet': props})['subnet']
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router = VPC.router_for_vpc(self.neutron(), network_id)
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if router:
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client.add_interface_router(
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router['id'],
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{'subnet_id': subnet['id']})
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self.resource_id_set(subnet['id'])
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def handle_delete(self):
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from neutronclient.common.exceptions import NeutronClientException
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client = self.neutron()
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network_id = self.properties.get(self.VPC_ID)
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subnet_id = self.resource_id
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try:
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router = VPC.router_for_vpc(self.neutron(), network_id)
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if router:
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client.remove_interface_router(
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router['id'],
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{'subnet_id': subnet_id})
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except NeutronClientException as ex:
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if ex.status_code != 404:
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raise ex
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try:
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client.delete_subnet(subnet_id)
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except NeutronClientException as ex:
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if ex.status_code != 404:
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raise ex
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def _resolve_attribute(self, name):
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if name == self.AVAILABILITY_ZONE:
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return self.properties.get(self.AVAILABILITY_ZONE)
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def resource_mapping():
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return {
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'AWS::EC2::Subnet': Subnet,
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}
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