RETIRED, Tricircle is to provide networking automation across Neutron.
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# Copyright 2015 Huawei Technologies Co., Ltd.
#
# 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 nova.compute.manager import ComputeManager
from nova.virt.fake import FakeDriver
import nova.rpc as nova_rpc
from nova.service import Service
import nova.version as nova_version
from tricircle.common.utils import get_import_path
_REPORT_INTERVAL = 30
_REPORT_INTERVAL_MAX = 60
def _patch_nova_service():
if nova_version.loaded:
return
nova_version.NOVA_PACKAGE = "tricircle"
nova_rpc.TRANSPORT.conf.set_override('control_exchange', 'nova')
nova_version.loaded = True
class NovaService(Service):
def __init__(self, *args, **kwargs):
_patch_nova_service()
self._conductor_api = None
self._rpcserver = None
super(NovaService, self).__init__(*args, **kwargs)
@property
def conductor_api(self):
return self._conductor_api
@conductor_api.setter
def conductor_api(self, value):
self._conductor_api = value
for client in (
self._conductor_api.base_rpcapi.client,
self._conductor_api._manager.client,
):
client.target.exchange = "nova"
@property
def rpcserver(self):
return self._rpcserver
@rpcserver.setter
def rpcserver(self, value):
self._rpcserver = value
if value is not None:
value.dispatcher._target.exchange = "nova"
def _fix_compute_service_exchange(service):
"""Fix service exchange value for nova"""
manager = service.manager
for client in (
manager.compute_rpcapi.client,
manager.compute_task_api.conductor_compute_rpcapi.client,
manager.consoleauth_rpcapi.client,
# manager.scheduler_client.queryclient.scheduler_rpcapi.client,
):
client.target.exchange = "nova"
class ComputeHostManager(object):
def __init__(self, site_manager):
self._compute_nodes = []
def _create_compute_node_service(self, host):
service = NovaService(
host=host,
binary="nova-compute",
topic="compute", # TODO(saggi): get from conf
db_allowed=False,
periodic_enable=True,
report_interval=_REPORT_INTERVAL,
periodic_interval_max=_REPORT_INTERVAL_MAX,
manager=get_import_path(ComputeManager),
# temporally use FakeDriver, new compute manager doesn't require
# compute driver so this can be removed after new compute manager
# is finished
compute_driver=get_import_path(FakeDriver)
)
_fix_compute_service_exchange(service)
return service
def create_host_adapter(self, host):
"""Creates an adapter between the nova compute API and Site object"""
service = self._create_compute_node_service(host)
service.start()
self._compute_nodes.append(service)