def create_volume_from_snapshot(self, volume, snapshot):
"""Create a volume from a snapshot."""
context = req_context.RequestContext(is_admin=True,
project_id=volume.project_id)
try:
provider_snap = self._get_provider_snapshot_id(
context, snapshot.id)
vol = self._create_volume(volume, context, snapshot=provider_snap)
except Exception as ex:
LOG.error(
_LE('create_volume_from_snapshot failed,'
'snapshot:%(id)s,ex:%(ex)s'), {
'id': snapshot.id,
'ex': ex
})
msg = (_("create_volume_from_snapshot failed! volume:%s") %
volume.id)
raise cinder_ex.VolumeBackendAPIException(data=msg)
# create local volume mapper
try:
values = {'provider_volume_id': vol['VolumeId']}
self.caa_db_api.volume_mapper_create(context, volume.id,
context.project_id, values)
except Exception as ex:
LOG.error(_LE("volume_mapper_create failed! ex = %s"), ex)
self._aws_client.get_aws_client(context).\
delete_volume(VolumeId=vol['VolumeId'])
msg = (_("create_volume_from_snapshot failed! volume:%s") %
volume.id)
raise cinder_ex.VolumeBackendAPIException(data=msg)
LOG.debug('create volume %s success.' % volume.id)
def test_create_backup_failed(self, mock_create):
msg = (_("create provider snapshot failed vol:%s") % 'fake')
mock_create.side_effect = cinder_ex.VolumeBackendAPIException(data=msg)
self.assertRaises(cinder_ex.BackupOperationError,
self.driver.backup,
self.backup,
'fake')
def validate_connector(self, connector):
# iSCSI drivers require the initiator information
if 'initiator' not in connector:
err_msg = _('The volume driver requires the iSCSI initiator '
'name in the connector.')
LOG.error(err_msg)
raise exception.VolumeBackendAPIException(data=err_msg)
self.initiator_iqn = connector['initiator']
def create_cloned_volume(self, volume, src_vref):
"""Create a clone of the specified volume."""
context = req_context.RequestContext(is_admin=True,
project_id=volume.project_id)
snapshot = None
try:
src_vol = self._get_provider_volume_id(context, src_vref)
snapshot = self._aws_client.get_aws_client(context).\
create_snapshot(VolumeId=src_vol)
provider_vol = self._create_volume(volume,
context,
snapshot=snapshot['SnapshotId'])
except Exception as ex:
LOG.error(
_LE("create_cloned_volume failed! volume:%(id)s,"
"ex: %(ex)s"), {
'id': volume.id,
'ex': ex
})
msg = (_("create_cloned_volume failed! volume:%s") % volume.id)
raise cinder_ex.VolumeBackendAPIException(data=msg)
finally:
if snapshot:
self._aws_client.get_aws_client(context).\
delete_snapshot(
SnapshotId=snapshot['SnapshotId']
)
# create local volume mapper
try:
values = {'provider_volume_id': provider_vol['VolumeId']}
self.caa_db_api.volume_mapper_create(context, volume.id,
context.project_id, values)
except Exception as ex:
LOG.error(
_LE("volume_mapper_create failed! vol:%(id)s,"
" ex = %(ex)s"), {
'id': volume.id,
'ex': ex
})
self._aws_client.get_aws_client(context).\
delete_volume(VolumeId=provider_vol['VolumeId'])
msg = (_("volume_mapper_create failed! volume:%s") % volume.id)
raise cinder_ex.VolumeBackendAPIException(data=msg)
LOG.debug('create volume %s success.' % volume.id)
def retype(self, context, volume, new_type, diff, host):
try:
self._modify_volume(volume, new_type=new_type)
except Exception as e:
LOG.error(_LE("retype failed! volume:%(id)s,ex: %(ex)s"), {
'id': volume.id,
'ex': e
})
msg = (_("retype failed! volume:%s") % volume.id)
raise cinder_ex.VolumeBackendAPIException(data=msg)
return True, None
def extend_volume(self, volume, new_size):
"""Extend a volume."""
try:
self._modify_volume(volume, new_size=new_size)
except Exception as e:
LOG.error(_LE("extend failed! volume:%(id)s,ex: %(ex)s"), {
'id': volume.id,
'ex': e
})
msg = (_("extend_volume failed! volume:%s") % volume.id)
raise cinder_ex.VolumeBackendAPIException(data=msg)
def delete_snapshot(self, snapshot):
"""Delete a snapshot."""
context = req_context.RequestContext(is_admin=True,
project_id=snapshot.project_id)
try:
provider_snap = self._get_provider_snapshot_id(
context, snapshot.id)
if provider_snap:
self._aws_client.get_aws_client(context).\
delete_snapshot(SnapshotId=provider_snap)
else:
snapshots = self._get_provider_snapshot(context, snapshot.id)
for snap in snapshots:
self._aws_client.get_aws_client(context).\
delete_snapshot(SnapshotId=snap)
except Exception as ex:
LOG.error(
_LE("delete snapshot failed! snapshot:%(id)s,"
"ex = %(ex)s"), {
'id': snapshot.id,
'ex': ex
})
msg = (_("delete_snapshot failed! snapshot:%s") % snapshot.id)
raise cinder_ex.VolumeBackendAPIException(data=msg)
# delete snapshot mapper
try:
self.caa_db_api.volume_snapshot_mapper_delete(
context, snapshot.id, context.project_id)
except Exception as ex:
LOG.error(
_LE("delete snapshot mapper failed! snapshot:%(id)s,"
"ex = %(ex)s"), {
'id': snapshot.id,
'ex': ex
})
msg = (_("delete_snapshot failed! snapshot:%s") % snapshot.id)
raise cinder_ex.VolumeBackendAPIException(data=msg)
LOG.info(_LI("delete snapshot(%s) success!"), snapshot.id)
def _create_volume(self,
volume,
context,
new_size=None,
new_type=None,
snapshot=None):
provider_type = self._get_provider_type_name(
context, new_type or volume.volume_type_id)
provider_az = self._get_provider_az(context, volume.availability_zone)
if not provider_az:
msg = (_("create provider volume failed,no provider_az vol:%s") %
volume.id)
LOG.error(msg)
raise cinder_ex.VolumeBackendAPIException(data=msg)
volume_args = {
'AvailabilityZone': provider_az,
'VolumeType': provider_type or 'standard',
'Size': new_size or volume.size
}
if snapshot:
volume_args['SnapshotId'] = snapshot
try:
provider_vol = self._aws_client.get_aws_client(context).\
create_volume(**volume_args)
# create remote volume mapper
tags = [{'Key': 'caa_volume_id', 'Value': volume.id}]
self._aws_client.get_aws_client(context).\
create_tags(Resources=[provider_vol['VolumeId']],
Tags=tags)
except Exception as ex:
LOG.error(
_LE("create provider volume failed! vol:%(id)s,"
" ex = %(ex)s"), {
'id': volume.id,
'ex': ex
})
msg = (_("create provider volume failed vol:%s") % volume.id)
raise cinder_ex.VolumeBackendAPIException(data=msg)
return provider_vol
def delete_volume(self, volume):
context = req_context.RequestContext(is_admin=True,
project_id=volume.project_id)
try:
vol_id = self._get_provider_volume_id(context, volume)
if not vol_id:
volumes = self._get_provider_volume(context, volume.id)
# if len(volumes) > 1,there must have been an error,we should
# delete all volumes
for vol in volumes:
self._aws_client.get_aws_client(context).\
delete_volume(VolumeId=vol)
else:
self._aws_client.get_aws_client(context).\
delete_volume(VolumeId=vol_id)
except Exception as ex:
LOG.error(_LE("delete volume failed! vol:%(id)s,ex = %(ex)s"), {
'id': volume.id,
'ex': ex
})
msg = (_("delete_volume failed! volume:%s") % volume.id)
raise cinder_ex.VolumeBackendAPIException(data=msg)
# delete volume mapper
try:
self.caa_db_api.volume_mapper_delete(context, volume.id,
context.project_id)
except Exception as ex:
LOG.error(
_LE("delete volume mapper failed! vol: %(id)s,"
"ex = %(ex)s"), {
'id': volume.id,
'ex': ex
})
msg = (_("volume_mapper_delete failed! vol: %(id)s,ex: %(ex)s"), {
'id': volume.id,
'ex': ex
})
raise cinder_ex.VolumeBackendAPIException(data=msg)
def create_snapshot(self, snapshot):
context = req_context.RequestContext(is_admin=True,
project_id=snapshot.project_id)
volume = snapshot.volume
try:
provider_vol = self._get_provider_volume_id(context, volume)
provider_snap = self._create_snapshot(context, provider_vol,
snapshot.id)
except Exception as ex:
LOG.error(_LE("create snapshot %(id)s failed! ex = %(ex)s"), {
'id': snapshot.id,
'ex': ex
})
msg = (_("create_snapshot failed! volume:%s") % snapshot.id)
raise cinder_ex.VolumeBackendAPIException(data=msg)
# create volume snapshot mapper
try:
values = {"provider_snapshot_id": provider_snap['SnapshotId']}
self.caa_db_api.volume_snapshot_mapper_create(
context, snapshot.id, context.project_id, values)
except Exception as ex:
LOG.error(
_LE("create snapshot mapper failed! snapshot:%(id)s,"
"ex = %(ex)s"), {
'id': snapshot.id,
'ex': ex
})
self._aws_client.get_aws_client(context).\
delete_snapshot(
SnapshotId=provider_snap['SnapshotId']
)
msg = (_("create_snapshot failed! snapshot:%s") % snapshot.id)
raise cinder_ex.VolumeBackendAPIException(data=msg)
LOG.info(_LI("create snapshot:%s success!"), snapshot.id)
def create_volume(self, volume):
context = req_context.RequestContext(is_admin=True,
project_id=volume.project_id)
try:
provider_vol = self._create_volume(volume, context)
except Exception:
msg = (_("create_volume failed! volume:%s") % volume.id)
raise cinder_ex.VolumeBackendAPIException(data=msg)
# create local volume mapper
try:
values = {'provider_volume_id': provider_vol['VolumeId']}
self.caa_db_api.volume_mapper_create(context, volume.id,
context.project_id, values)
except Exception as ex:
msg = (_("volume_mapper_create failed! vol: %(id)s,ex: %(ex)s"), {
'id': volume.id,
'ex': ex
})
self._aws_client.get_aws_client(context).\
delete_volume(VolumeId=provider_vol['VolumeId'])
raise cinder_ex.VolumeBackendAPIException(data=msg)
LOG.debug('create volume %s success.' % volume.id)
def check_qemu_img_version(minimum_version):
qemu_version = get_qemu_img_version()
if (qemu_version is None
or qemu_version < _get_version_from_string(minimum_version)):
if qemu_version:
current_version = '.'.join(
(str(element) for element in qemu_version))
else:
current_version = None
_msg = _('qemu-img %(minimum_version)s or later is required by '
'this volume driver. Current qemu-img version: '
'%(current_version)s') % {
'minimum_version': minimum_version,
'current_version': current_version
}
raise exception.VolumeBackendAPIException(data=_msg)
def _create_snapshot(self, context, provider_vol, os_id):
try:
snapshot_args = {'VolumeId': provider_vol}
provider_snap = self._aws_client.get_aws_client(context).\
create_snapshot(**snapshot_args)
# create remote volume mapper
tags = [{'Key': 'caa_snapshot_id', 'Value': os_id}]
self._aws_client.get_aws_client(context).\
create_tags(
Resources=[provider_snap['SnapshotId']],
Tags=tags
)
except Exception as ex:
LOG.error(
_LE("create provider snapshot failed! os_id:%(os_id)s,"
" ex = %(ex)s"), {
'os_id': os_id,
'ex': ex
})
msg = (_("create provider snapshot failed os_id:%s") % os_id)
raise cinder_ex.VolumeBackendAPIException(data=msg)
return provider_snap
def _modify_volume(self, volume, new_size=None, new_type=None):
context = req_context.RequestContext(is_admin=True,
project_id=volume.project_id)
snapshot = None
try:
old_vol = self._get_provider_volume_id(context, volume)
snapshot = self._aws_client.get_aws_client(context).\
create_snapshot(VolumeId=old_vol)
provider_vol = self._create_volume(volume,
context,
snapshot=snapshot['SnapshotId'],
new_type=new_type,
new_size=new_size)
except Exception as ex:
msg = _("Modify Volume failed! Result: %s.") % ex
raise cinder_ex.VolumeBackendAPIException(data=msg)
finally:
if snapshot:
self._aws_client.get_aws_client(context).\
delete_snapshot(
SnapshotId=snapshot['SnapshotId']
)
# update local volume mapper
try:
values = {'provider_volume_id': provider_vol['VolumeId']}
self.caa_db_api.volume_mapper_update(context, volume.id,
context.project_id, values)
except Exception as ex:
LOG.error(_LE("volume_mapper_create failed! ex = %s"), ex)
self._aws_client.get_aws_client(context).\
delete_volume(VolumeId=provider_vol['VolumeId'])
raise
self._aws_client.get_aws_client(context).\
delete_volume(VolumeId=old_vol)
LOG.debug('create volume %s success.' % volume.id)