def create_share_from_snapshot(self, context, share, snapshot,
share_server=None):
"""Create a share from a snapshot."""
LOG.debug('Entering create_share_from_snapshot. The source '
'snapshot=%(snap)s. The created share=%(share)s',
{'snap': snapshot['id'], 'share': share['id']})
snapshot_id = (snapshot.get('provider_location') or
self.private_storage.get(snapshot['id'], 'snapshot_id'))
if not snapshot_id:
LOG.warning('Snapshot %s does not exist', snapshot['id'])
raise exception.SnapshotResourceNotFound(name=snapshot['id'])
LOG.debug('snapshot_id: %s', snapshot_id)
create_share_name = self._gen_random_name("share")
# if sharename exist, need to change another
created_share = self.api_executor.get_share_info(
self.configuration.qnap_poolname,
vol_label=create_share_name)
if created_share is not None:
msg = _("Failed to create an unused share name.")
raise exception.ShareBackendException(msg=msg)
self.api_executor.clone_snapshot(snapshot_id, create_share_name)
create_volID = ""
created_share = self.api_executor.get_share_info(
self.configuration.qnap_poolname,
vol_label=create_share_name)
if created_share.find('vol_no') is not None:
create_volID = created_share.find('vol_no').text
else:
msg = _("Failed to clone a snapshot in time.")
raise exception.ShareBackendException(msg=msg)
snap_share = self.share_api.get(context,
snapshot['share_instance']['share_id'])
LOG.debug('snap_share[size]: %s', snap_share['size'])
if (share['size'] > snap_share['size']):
share_dict = {'sharename': create_share_name,
'old_sharename': create_share_name,
'new_size': share['size']}
self.api_executor.edit_share(share_dict)
# Use private_storage to record volume ID and Name created in the NAS.
_metadata = {
'volID': create_volID,
'volName': create_share_name,
}
self.private_storage.update(share['id'], _metadata)
# Test to get value from private_storage.
volName = self.private_storage.get(share['id'], 'volName')
LOG.debug('volName: %s', volName)
return self._get_location_path(create_share_name,
share['share_proto'],
self.configuration.qnap_share_ip)
def test_snapshot_resource_not_found(self):
# verify response code for exception.SnapshotResourceNotFound
name = "fake_name"
e = exception.SnapshotResourceNotFound(name=name)
self.assertEqual(404, e.code)
self.assertIn(name, e.msg)