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#
# 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.
"""Common code for working with volumes
"""
from ceilometer.polling import plugin_base
from ceilometer import sample
class _Base(plugin_base.PollsterBase):
def extract_metadata(self, obj):
metadata = dict((k, getattr(obj, k)) for k in self.FIELDS)
if getattr(obj, "volume_image_metadata", None):
metadata["image_id"] = obj.volume_image_metadata.get("image_id")
else:
metadata["image_id"] = None
if getattr(obj, "attachments", None):
metadata["instance_id"] = obj.attachments[0]["server_id"]
else:
metadata["instance_id"] = None
return metadata
class VolumeSizePollster(_Base):
@property
def default_discovery(self):
return 'volumes'
FIELDS = ['name',
'status',
'volume_type',
'availability_zone',
'os-vol-host-attr:host',
'migration_status',
'attachments',
'snapshot_id',
'source_volid']
def get_samples(self, manager, cache, resources):
for volume in resources:
yield sample.Sample(
name='volume.size',
type=sample.TYPE_GAUGE,
unit='GB',
volume=volume.size,
user_id=volume.user_id,
project_id=getattr(volume,
'os-vol-tenant-attr:tenant_id'),
resource_id=volume.id,
resource_metadata=self.extract_metadata(volume),
)
class VolumeSnapshotSize(_Base):
@property
def default_discovery(self):
return 'volume_snapshots'
FIELDS = ['name',
'volume_id',
'status',
'description',
'metadata',
'os-extended-snapshot-attributes:progress',
]
def get_samples(self, manager, cache, resources):
for snapshot in resources:
yield sample.Sample(
name='volume.snapshot.size',
type=sample.TYPE_GAUGE,
unit='GB',
volume=snapshot.size,
user_id=snapshot.user_id,
project_id=getattr(
snapshot,
'os-extended-snapshot-attributes:project_id'),
resource_id=snapshot.id,
resource_metadata=self.extract_metadata(snapshot),
)
class VolumeBackupSize(_Base):
@property
def default_discovery(self):
return 'volume_backups'
FIELDS = ['name',
'object_count',
'container',
'volume_id',
'status',
'description']
def get_samples(self, manager, cache, resources):
for backup in resources:
yield sample.Sample(
name='volume.backup.size',
type=sample.TYPE_GAUGE,
unit='GB',
volume=backup.size,
user_id=None,
project_id=getattr(
backup, 'os-backup-project-attr:project_id', None),
resource_id=backup.id,
resource_metadata=self.extract_metadata(backup),
)
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