267 lines
9.8 KiB
Python
267 lines
9.8 KiB
Python
# Copyright 2012 OpenStack Foundation
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import datetime
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from trove.common import cfg
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from trove.common import remote
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from trove.common import utils
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from trove.openstack.common import log as logging
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from trove.instance import models as imodels
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from trove.instance.models import load_instance, InstanceServiceStatus
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from trove.instance import models as instance_models
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from trove.extensions.mysql import models as mysql_models
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from trove import rpc
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LOG = logging.getLogger(__name__)
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CONF = cfg.CONF
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def load_mgmt_instances(context, deleted=None, client=None,
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include_clustered=None):
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if not client:
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client = remote.create_nova_client(context)
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try:
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mgmt_servers = client.rdservers.list()
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except AttributeError:
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mgmt_servers = client.servers.list(search_opts={'all_tenants': 1})
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LOG.info("Found %d servers in Nova" %
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len(mgmt_servers if mgmt_servers else []))
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args = {}
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if deleted is not None:
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args['deleted'] = deleted
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if not include_clustered:
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args['cluster_id'] = None
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db_infos = instance_models.DBInstance.find_all(**args)
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instances = MgmtInstances.load_status_from_existing(context, db_infos,
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mgmt_servers)
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return instances
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def load_mgmt_instance(cls, context, id):
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try:
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instance = load_instance(cls, context, id, needs_server=True)
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client = remote.create_nova_client(context)
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try:
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server = client.rdservers.get(instance.server_id)
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except AttributeError:
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server = client.servers.get(instance.server_id)
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if hasattr(server, 'host'):
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instance.server.host = server.host
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elif hasattr(server, 'hostId'):
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instance.server.host = server.hostId
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if hasattr(server, 'deleted'):
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instance.server.deleted = server.deleted
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if hasattr(server, 'deleted_at'):
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instance.server.deleted_at = server.deleted_at
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if hasattr(server, 'local_id'):
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instance.server.local_id = server.local_id
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assert instance.server is not None
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except Exception as e:
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LOG.error(e)
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instance = load_instance(cls, context, id, needs_server=False)
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return instance
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class SimpleMgmtInstance(imodels.BaseInstance):
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def __init__(self, context, db_info, server, datastore_status):
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super(SimpleMgmtInstance, self).__init__(context, db_info, server,
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datastore_status)
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@property
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def status(self):
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if self.deleted:
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return imodels.InstanceStatus.SHUTDOWN
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return super(SimpleMgmtInstance, self).status
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@property
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def deleted(self):
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return self.db_info.deleted
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@property
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def deleted_at(self):
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return self.db_info.deleted_at
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@classmethod
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def load(cls, context, id):
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return load_mgmt_instance(cls, context, id)
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@property
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def task_description(self):
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return self.db_info.task_description
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class DetailedMgmtInstance(SimpleMgmtInstance):
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def __init__(self, *args, **kwargs):
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super(DetailedMgmtInstance, self).__init__(*args, **kwargs)
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self.volume = None
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self.volume_used = None
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self.volume_total = None
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self.root_history = None
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@classmethod
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def load(cls, context, id):
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instance = load_mgmt_instance(cls, context, id)
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client = remote.create_cinder_client(context)
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try:
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instance.volume = client.volumes.get(instance.volume_id)
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except Exception:
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instance.volume = None
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# Populate the volume_used attribute from the guest agent.
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instance_models.load_guest_info(instance, context, id)
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instance.root_history = mysql_models.RootHistory.load(context=context,
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instance_id=id)
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return instance
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class MgmtInstance(imodels.Instance):
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def get_diagnostics(self):
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return self.get_guest().get_diagnostics()
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def stop_db(self):
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return self.get_guest().stop_db()
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def get_hwinfo(self):
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return self.get_guest().get_hwinfo()
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class MgmtInstances(imodels.Instances):
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@staticmethod
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def load_status_from_existing(context, db_infos, servers):
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def load_instance(context, db, status, server=None):
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return SimpleMgmtInstance(context, db, server, status)
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if context is None:
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raise TypeError("Argument context not defined.")
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find_server = imodels.create_server_list_matcher(servers)
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instances = imodels.Instances._load_servers_status(load_instance,
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context,
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db_infos,
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find_server)
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_load_servers(instances, find_server)
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return instances
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def _load_servers(instances, find_server):
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for instance in instances:
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db = instance.db_info
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instance.server = None
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try:
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server = find_server(db.id, db.compute_instance_id)
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instance.server = server
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except Exception as ex:
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LOG.error(ex)
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return instances
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def publish_exist_events(transformer, admin_context):
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notifier = rpc.get_notifier("taskmanager")
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notifications = transformer()
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# clear out admin_context.auth_token so it does not get logged
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admin_context.auth_token = None
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for notification in notifications:
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notifier.info(admin_context, "trove.instance.exists", notification)
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class NotificationTransformer(object):
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def __init__(self, **kwargs):
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pass
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@staticmethod
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def _get_audit_period():
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now = datetime.datetime.now()
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audit_start = utils.isotime(now, subsecond=True)
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audit_end = utils.isotime(
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now + datetime.timedelta(
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seconds=CONF.exists_notification_ticks * CONF.report_interval),
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subsecond=True)
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return audit_start, audit_end
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def _get_service_id(self, datastore_manager, id_map):
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if datastore_manager in id_map:
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datastore_manager_id = id_map[datastore_manager]
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else:
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datastore_manager_id = cfg.UNKNOWN_SERVICE_ID
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LOG.error("Datastore ID for Manager (%s) is not configured"
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% datastore_manager)
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return datastore_manager_id
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def transform_instance(self, instance, audit_start, audit_end):
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payload = {
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'audit_period_beginning': audit_start,
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'audit_period_ending': audit_end,
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'created_at': instance.created,
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'display_name': instance.name,
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'instance_id': instance.id,
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'instance_name': instance.name,
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'instance_type_id': instance.flavor_id,
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'launched_at': instance.created,
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'nova_instance_id': instance.server_id,
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'region': CONF.region,
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'state_description': instance.status.lower(),
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'state': instance.status.lower(),
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'tenant_id': instance.tenant_id
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}
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payload['service_id'] = self._get_service_id(
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instance.datastore_version.manager, CONF.notification_service_id)
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return payload
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def __call__(self):
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audit_start, audit_end = NotificationTransformer._get_audit_period()
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messages = []
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db_infos = instance_models.DBInstance.find_all(deleted=False)
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for db_info in db_infos:
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service_status = InstanceServiceStatus.find_by(
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instance_id=db_info.id)
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instance = SimpleMgmtInstance(None, db_info, None, service_status)
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message = self.transform_instance(instance, audit_start, audit_end)
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messages.append(message)
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return messages
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class NovaNotificationTransformer(NotificationTransformer):
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def __init__(self, **kwargs):
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super(NovaNotificationTransformer, self).__init__(**kwargs)
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self.context = kwargs['context']
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self.nova_client = remote.create_admin_nova_client(self.context)
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self._flavor_cache = {}
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def _lookup_flavor(self, flavor_id):
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if flavor_id in self._flavor_cache:
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LOG.debug("Flavor cache hit for %s" % flavor_id)
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return self._flavor_cache[flavor_id]
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# fetch flavor resource from nova
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LOG.info("Flavor cache miss for %s" % flavor_id)
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flavor = self.nova_client.flavors.get(flavor_id)
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self._flavor_cache[flavor_id] = flavor.name if flavor else 'unknown'
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return self._flavor_cache[flavor_id]
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def __call__(self):
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audit_start, audit_end = NotificationTransformer._get_audit_period()
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instances = load_mgmt_instances(self.context, deleted=False,
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client=self.nova_client)
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messages = []
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for instance in filter(
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lambda inst: inst.status != 'SHUTDOWN' and inst.server,
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instances):
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message = {
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'instance_type': self._lookup_flavor(instance.flavor_id),
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'user_id': instance.server.user_id
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}
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message.update(self.transform_instance(instance,
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audit_start,
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audit_end))
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messages.append(message)
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return messages
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