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# Copyright 2014 Red Hat, Inc.
#
# 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.objects import base as obj_base
from nova.objects import fields
EVENT_NAMES = [
# Network has changed for this instance, rebuild info_cache
'network-changed',
# VIF plugging notifications, tag is port_id
'network-vif-plugged',
'network-vif-unplugged',
'network-vif-deleted',
# Volume was extended for this instance, tag is volume_id
'volume-extended',
# Power state has changed for this instance
'power-update',
# Accelerator Request got bound, tag is ARQ uuid.
# Sent when an ARQ for an instance has been bound or failed to bind.
'accelerator-request-bound',
]
EVENT_STATUSES = ['failed', 'completed', 'in-progress']
# Possible tag values for the power-update event.
POWER_ON = 'POWER_ON'
POWER_OFF = 'POWER_OFF'
@obj_base.NovaObjectRegistry.register
class InstanceExternalEvent(obj_base.NovaObject):
# Version 1.0: Initial version
# Supports network-changed and vif-plugged
# Version 1.1: adds network-vif-deleted event
# Version 1.2: adds volume-extended event
# Version 1.3: adds power-update event
# Version 1.4: adds accelerator-request-bound event
VERSION = '1.4'
fields = {
'instance_uuid': fields.UUIDField(),
'name': fields.EnumField(valid_values=EVENT_NAMES),
'status': fields.EnumField(valid_values=EVENT_STATUSES),
'tag': fields.StringField(nullable=True),
'data': fields.DictOfStringsField(),
}
@staticmethod
def make_key(name, tag=None):
if tag is not None:
return '%s-%s' % (name, tag)
else:
return name
@property
def key(self):
return self.make_key(self.name, self.tag)
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