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#
# 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.
import six
from heat.common import exception
from heat.common.i18n import _
from heat.engine import properties
from heat.engine import resource
from heat.engine.resources.aws.ec2 import route_table
class InternetGateway(resource.Resource):
PROPERTIES = (
TAGS,
) = (
'Tags',
)
_TAG_KEYS = (
TAG_KEY, TAG_VALUE,
) = (
'Key', 'Value',
)
properties_schema = {
TAGS: properties.Schema(
properties.Schema.LIST,
schema=properties.Schema(
properties.Schema.MAP,
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):
self.resource_id_set(self.physical_resource_name())
def handle_delete(self):
pass
@staticmethod
def get_external_network_id(client):
ext_filter = {'router:external': True}
ext_nets = client.list_networks(**ext_filter)['networks']
if len(ext_nets) != 1:
# TODO(sbaker) if there is more than one external network
# add a heat configuration variable to set the ID of
# the default one
raise exception.Error(
_('Expected 1 external network, found %d') % len(ext_nets))
external_network_id = ext_nets[0]['id']
return external_network_id
class VPCGatewayAttachment(resource.Resource):
PROPERTIES = (
VPC_ID, INTERNET_GATEWAY_ID, VPN_GATEWAY_ID,
) = (
'VpcId', 'InternetGatewayId', 'VpnGatewayId',
)
properties_schema = {
VPC_ID: properties.Schema(
properties.Schema.STRING,
_('VPC ID for this gateway association.'),
required=True
),
INTERNET_GATEWAY_ID: properties.Schema(
properties.Schema.STRING,
_('ID of the InternetGateway.')
),
VPN_GATEWAY_ID: properties.Schema(
properties.Schema.STRING,
_('ID of the VPNGateway to attach to the VPC.'),
implemented=False
),
}
default_client_name = 'neutron'
def _vpc_route_tables(self, ignore_errors=False):
for res in six.itervalues(self.stack):
if res.has_interface('AWS::EC2::RouteTable'):
try:
vpc_id = self.properties[self.VPC_ID]
rt_vpc_id = res.properties.get(
route_table.RouteTable.VPC_ID)
except (ValueError, TypeError):
if ignore_errors:
continue
else:
raise
if rt_vpc_id == vpc_id:
yield res
def add_dependencies(self, deps):
super(VPCGatewayAttachment, self).add_dependencies(deps)
# Depend on any route table in this template with the same
# VpcId as this VpcId.
# All route tables must exist before gateway attachment
# as attachment happens to routers (not VPCs)
# Properties errors will be caught later in validation,
# where we can report them in their proper context.
for route_tbl in self._vpc_route_tables(ignore_errors=True):
deps += (self, route_tbl)
def handle_create(self):
client = self.client()
external_network_id = InternetGateway.get_external_network_id(client)
for router in self._vpc_route_tables():
client.add_gateway_router(router.resource_id, {
'network_id': external_network_id})
def handle_delete(self):
for router in self._vpc_route_tables():
with self.client_plugin().ignore_not_found:
self.client().remove_gateway_router(router.resource_id)
def resource_mapping():
return {
'AWS::EC2::InternetGateway': InternetGateway,
'AWS::EC2::VPCGatewayAttachment': VPCGatewayAttachment,
}
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