OpenStack Networking (Neutron)
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# Copyright 2012 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.
from neutron_lib.api.definitions import servicetype as svctype_apidef
from neutron_lib import exceptions
from neutron_lib.plugins import directory
from neutron_lib.services import base as service_base
from oslo_utils import uuidutils
from neutron.api import extensions
from neutron.api.v2 import base
from neutron.db import servicetype_db
from neutron import neutron_plugin_base_v2
RESOURCE_NAME = "dummy"
COLLECTION_NAME = "%ss" % RESOURCE_NAME
DUMMY_SERVICE_TYPE = "DUMMY"
DUMMY_SERVICE_WITH_REQUIRE_TYPE = "DUMMY_REQIURE"
# Attribute Map for dummy resource
RESOURCE_ATTRIBUTE_MAP = {
COLLECTION_NAME: {
'id': {'allow_post': False, 'allow_put': False,
'validate': {'type:uuid': None},
'is_visible': True},
'name': {'allow_post': True, 'allow_put': True,
'validate': {'type:string': None},
'is_visible': True, 'default': ''},
'tenant_id': {'allow_post': True, 'allow_put': False,
'required_by_policy': True,
'is_visible': True},
'service_type': {'allow_post': True,
'allow_put': False,
'validate': {'type:servicetype_ref': None},
'is_visible': True,
'default': None}
}
}
class Dummy(object):
@classmethod
def get_name(cls):
return RESOURCE_NAME
@classmethod
def get_alias(cls):
return RESOURCE_NAME
@classmethod
def get_description(cls):
return "Dummy stuff"
@classmethod
def get_updated(cls):
return "2012-11-20T10:00:00-00:00"
@classmethod
def get_resources(cls):
"""Returns Extended Resource for dummy management."""
dummy_inst = directory.get_plugin(DUMMY_SERVICE_TYPE)
controller = base.create_resource(
COLLECTION_NAME, RESOURCE_NAME, dummy_inst,
RESOURCE_ATTRIBUTE_MAP[COLLECTION_NAME])
return [extensions.ResourceExtension(COLLECTION_NAME,
controller)]
class DummyServicePlugin(service_base.ServicePluginBase):
"""This is a simple plugin for managing instances of a fictional 'dummy'
service. This plugin is provided as a proof-of-concept of how
advanced service might leverage the service type extension.
Ideally, instances of real advanced services, such as firewall
or VPN will adopt a similar solution.
"""
supported_extension_aliases = [RESOURCE_NAME, svctype_apidef.ALIAS]
path_prefix = "/dummy_svc"
agent_notifiers = {RESOURCE_NAME: 'dummy_agent_notifier'}
def __init__(self):
self.svctype_mgr = servicetype_db.ServiceTypeManager.get_instance()
self.dummys = {}
@classmethod
def get_plugin_type(cls):
return DUMMY_SERVICE_TYPE
def get_plugin_description(self):
return "Neutron Dummy Service Plugin"
def get_dummys(self, context, filters, fields):
return self.dummys.values()
def get_dummy(self, context, id, fields):
try:
return self.dummys[id]
except KeyError:
raise exceptions.NotFound()
def create_dummy(self, context, dummy):
d = dummy[RESOURCE_NAME]
d['id'] = uuidutils.generate_uuid()
self.dummys[d['id']] = d
self.svctype_mgr.increase_service_type_refcount(context,
d['service_type'])
return d
def update_dummy(self, context, id, dummy):
pass
def delete_dummy(self, context, id):
try:
svc_type_id = self.dummys[id]['service_type']
del self.dummys[id]
self.svctype_mgr.decrease_service_type_refcount(context,
svc_type_id)
except KeyError:
raise exceptions.NotFound()
class DummyWithRequireServicePlugin(DummyServicePlugin):
required_service_plugins = ['dummy']
@classmethod
def get_plugin_type(cls):
return DUMMY_SERVICE_WITH_REQUIRE_TYPE
def get_plugin_description(self):
return "Neutron Dummy Service Plugin with requirements"
class DummyCorePluginWithoutDatastore(
neutron_plugin_base_v2.NeutronPluginBaseV2):
def create_subnet(self, context, subnet):
pass
def update_subnet(self, context, id, subnet):
pass
def get_subnet(self, context, id, fields=None):
pass
def get_subnets(self, context, filters=None, fields=None,
sorts=None, limit=None, marker=None, page_reverse=False):
pass
def delete_subnet(self, context, id):
pass
def create_network(self, context, network):
pass
def update_network(self, context, id, network):
pass
def get_network(self, context, id, fields=None):
pass
def get_networks(self, context, filters=None, fields=None,
sorts=None, limit=None, marker=None, page_reverse=False):
pass
def delete_network(self, context, id):
pass
def create_port(self, context, port):
pass
def update_port(self, context, id, port):
pass
def get_port(self, context, id, fields=None):
pass
def get_ports(self, context, filters=None, fields=None,
sorts=None, limit=None, marker=None, page_reverse=False):
pass
def delete_port(self, context, id):
pass