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OpenStack Study: vif_driver.py**** CubicPower OpenStack Study ****
# Copyright (c) 2012 NTT DOCOMO, INC. # 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 oslo.config import cfg from nova import context from nova import exception from nova.openstack.common.gettextutils import _ from nova.openstack.common import log as logging from nova.virt.baremetal import db as bmdb CONF = cfg.CONF LOG = logging.getLogger(__name__)
**** CubicPower OpenStack Study **** class BareMetalVIFDriver(object):
**** CubicPower OpenStack Study **** def _after_plug(self, instance, vif, pif): pass
**** CubicPower OpenStack Study **** def _after_unplug(self, instance, vif, pif): pass
**** CubicPower OpenStack Study **** def plug(self, instance, vif): LOG.debug(_("plug: instance_uuid=%(uuid)s vif=%(vif)s") % {'uuid': instance['uuid'], 'vif': vif}) vif_uuid = vif['id'] ctx = context.get_admin_context() node = bmdb.bm_node_get_by_instance_uuid(ctx, instance['uuid']) # TODO(deva): optimize this database query # this is just searching for a free physical interface pifs = bmdb.bm_interface_get_all_by_bm_node_id(ctx, node['id']) for pif in pifs: if not pif['vif_uuid']: bmdb.bm_interface_set_vif_uuid(ctx, pif['id'], vif_uuid) LOG.debug(_("pif:%(id)s is plugged (vif_uuid=%(vif_uuid)s)") % {'id': pif['id'], 'vif_uuid': vif_uuid}) self._after_plug(instance, vif, pif) return # NOTE(deva): should this really be raising an exception # when there are no physical interfaces left? raise exception.NovaException(_( "Baremetal node: %(id)s has no available physical interface" " for virtual interface %(vif_uuid)s") % {'id': node['id'], 'vif_uuid': vif_uuid})
**** CubicPower OpenStack Study **** def unplug(self, instance, vif): LOG.debug(_("unplug: instance_uuid=%(uuid)s vif=%(vif)s"), {'uuid': instance['uuid'], 'vif': vif}) vif_uuid = vif['id'] ctx = context.get_admin_context() try: pif = bmdb.bm_interface_get_by_vif_uuid(ctx, vif_uuid) bmdb.bm_interface_set_vif_uuid(ctx, pif['id'], None) LOG.debug(_("pif:%(id)s is unplugged (vif_uuid=%(vif_uuid)s)") % {'id': pif['id'], 'vif_uuid': vif_uuid}) self._after_unplug(instance, vif, pif) except exception.NovaException: LOG.warn(_("no pif for vif_uuid=%s") % vif_uuid)
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