111 lines
3.3 KiB
Python
111 lines
3.3 KiB
Python
# Copyright 2015 Huawei Technologies Co., Ltd.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from nova.compute.manager import ComputeManager
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from nova.virt.fake import FakeDriver
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import nova.rpc as nova_rpc
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from nova.service import Service
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import nova.version as nova_version
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from tricircle.common.utils import get_import_path
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_REPORT_INTERVAL = 30
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_REPORT_INTERVAL_MAX = 60
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def _patch_nova_service():
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if nova_version.loaded:
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return
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nova_version.NOVA_PACKAGE = "tricircle"
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nova_rpc.TRANSPORT.conf.set_override('control_exchange', 'nova')
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nova_version.loaded = True
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class NovaService(Service):
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def __init__(self, *args, **kwargs):
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_patch_nova_service()
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self._conductor_api = None
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self._rpcserver = None
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super(NovaService, self).__init__(*args, **kwargs)
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@property
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def conductor_api(self):
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return self._conductor_api
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@conductor_api.setter
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def conductor_api(self, value):
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self._conductor_api = value
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for client in (
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self._conductor_api.base_rpcapi.client,
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self._conductor_api._manager.client,
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):
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client.target.exchange = "nova"
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@property
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def rpcserver(self):
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return self._rpcserver
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@rpcserver.setter
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def rpcserver(self, value):
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self._rpcserver = value
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if value is not None:
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value.dispatcher._target.exchange = "nova"
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def _fix_compute_service_exchange(service):
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"""Fix service exchange value for nova"""
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manager = service.manager
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for client in (
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manager.compute_rpcapi.client,
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manager.compute_task_api.conductor_compute_rpcapi.client,
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manager.consoleauth_rpcapi.client,
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# manager.scheduler_client.queryclient.scheduler_rpcapi.client,
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):
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client.target.exchange = "nova"
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class ComputeHostManager(object):
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def __init__(self, site_manager):
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self._compute_nodes = []
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def _create_compute_node_service(self, host):
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service = NovaService(
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host=host,
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binary="nova-compute",
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topic="compute", # TODO(saggi): get from conf
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db_allowed=False,
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periodic_enable=True,
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report_interval=_REPORT_INTERVAL,
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periodic_interval_max=_REPORT_INTERVAL_MAX,
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manager=get_import_path(ComputeManager),
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# temporally use FakeDriver, new compute manager doesn't require
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# compute driver so this can be removed after new compute manager
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# is finished
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compute_driver=get_import_path(FakeDriver)
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)
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_fix_compute_service_exchange(service)
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return service
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def create_host_adapter(self, host):
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"""Creates an adapter between the nova compute API and Site object"""
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service = self._create_compute_node_service(host)
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service.start()
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self._compute_nodes.append(service)
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