7095354c81
The following commit adds the ability to associate multiple different provider networks on a single network. Implements blueprint map-networks-to-multiple-provider-networks Change-Id: I3c70fb2426899f728a401566debab7f66e7246bc
117 lines
4.0 KiB
Python
117 lines
4.0 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
|
|
|
|
# Copyright (c) 2013 OpenStack Foundation.
|
|
# All rights reserved.
|
|
#
|
|
# 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 webob.exc
|
|
|
|
from neutron.api import extensions
|
|
from neutron.api.v2 import attributes as attr
|
|
from neutron.common import exceptions as qexception
|
|
from neutron.extensions import providernet as pnet
|
|
|
|
SEGMENTS = 'segments'
|
|
|
|
|
|
class SegmentsSetInConjunctionWithProviders(qexception.InvalidInput):
|
|
message = _("Segments and provider values cannot both be set.")
|
|
|
|
|
|
class SegmentsContainDuplicateEntry(qexception.InvalidInput):
|
|
message = _("Duplicate segment entry in request.")
|
|
|
|
|
|
def _convert_and_validate_segments(segments, valid_values=None):
|
|
unique = set()
|
|
for segment in segments:
|
|
unique.add(tuple(segment.iteritems()))
|
|
network_type = segment.get(pnet.NETWORK_TYPE,
|
|
attr.ATTR_NOT_SPECIFIED)
|
|
segment[pnet.NETWORK_TYPE] = network_type
|
|
physical_network = segment.get(pnet.PHYSICAL_NETWORK,
|
|
attr.ATTR_NOT_SPECIFIED)
|
|
segment[pnet.PHYSICAL_NETWORK] = physical_network
|
|
segmentation_id = segment.get(pnet.SEGMENTATION_ID)
|
|
if segmentation_id:
|
|
segment[pnet.SEGMENTATION_ID] = attr.convert_to_int(
|
|
segmentation_id)
|
|
else:
|
|
segment[pnet.SEGMENTATION_ID] = attr.ATTR_NOT_SPECIFIED
|
|
if len(segment.keys()) != 3:
|
|
msg = (_("Unrecognized attribute(s) '%s'") %
|
|
', '.join(set(segment.keys()) -
|
|
set([pnet.NETWORK_TYPE, pnet.PHYSICAL_NETWORK,
|
|
pnet.SEGMENTATION_ID])))
|
|
raise webob.exc.HTTPBadRequest(msg)
|
|
if len(unique) != len(segments):
|
|
raise SegmentsContainDuplicateEntry()
|
|
|
|
|
|
attr.validators['type:convert_segments'] = (
|
|
_convert_and_validate_segments)
|
|
|
|
|
|
EXTENDED_ATTRIBUTES_2_0 = {
|
|
'networks': {
|
|
SEGMENTS: {'allow_post': True, 'allow_put': True,
|
|
'validate': {'type:convert_segments': None},
|
|
'convert_list_to': attr.convert_kvp_list_to_dict,
|
|
'default': attr.ATTR_NOT_SPECIFIED,
|
|
'enforce_policy': True,
|
|
'is_visible': True},
|
|
}
|
|
}
|
|
|
|
|
|
class Multiprovidernet(extensions.ExtensionDescriptor):
|
|
"""Extension class supporting multiple provider networks.
|
|
|
|
This class is used by neutron's extension framework to make
|
|
metadata about the multiple provider network extension available to
|
|
clients. No new resources are defined by this extension. Instead,
|
|
the existing network resource's request and response messages are
|
|
extended with attributes in the provider namespace.
|
|
|
|
With admin rights, network dictionaries returned will also include
|
|
provider attributes.
|
|
"""
|
|
|
|
@classmethod
|
|
def get_name(cls):
|
|
return "Multi Provider Network"
|
|
|
|
@classmethod
|
|
def get_alias(cls):
|
|
return "multi-provider"
|
|
|
|
@classmethod
|
|
def get_description(cls):
|
|
return ("Expose mapping of virtual networks to multiple physical "
|
|
"networks")
|
|
|
|
@classmethod
|
|
def get_namespace(cls):
|
|
return "http://docs.openstack.org/ext/multi-provider/api/v1.0"
|
|
|
|
@classmethod
|
|
def get_updated(cls):
|
|
return "2013-06-27T10:00:00-00:00"
|
|
|
|
def get_extended_resources(self, version):
|
|
if version == "2.0":
|
|
return EXTENDED_ATTRIBUTES_2_0
|
|
else:
|
|
return {}
|