diff options
Diffstat (limited to 'nova/compute')
| -rw-r--r-- | nova/compute/api.py | 33 | ||||
| -rw-r--r-- | nova/compute/manager.py | 29 |
2 files changed, 40 insertions, 22 deletions
diff --git a/nova/compute/api.py b/nova/compute/api.py index c0cb2e18a..9c6f0ef9d 100644 --- a/nova/compute/api.py +++ b/nova/compute/api.py @@ -701,32 +701,38 @@ class API(base.Base): raise exception.Error(_("Unable to find host for Instance %s") % instance_id) - def backup(self, context, instance_id, backup_type, rotation): + def backup(self, context, instance_id, name, backup_type, rotation): """Backup the given instance - instance_id - int - id representing the instance - backup_type - str - whether it's 'daily' or 'weekly' - rotation - int - number of backups to keep around - """ + :param instance_id: nova.db.sqlalchemy.models.Instance.Id + :param name: name of the backup or snapshot name = backup_type # daily backups are called 'daily' - recv_meta = self._snapshot(context, instance_id, name, backup_type, - rotation=rotation) + :param rotation: int representing how many backups to keep around; + None if rotation shouldn't be used (as in the case of snapshots) + """ + recv_meta = self._create_image(context, instance_id, name, 'backup', + backup_type=backup_type, rotation=rotation) return recv_meta def snapshot(self, context, instance_id, name): """Snapshot the given instance. + :param instance_id: nova.db.sqlalchemy.models.Instance.Id + :param name: name of the backup or snapshot + :returns: A dict containing image metadata """ - return self._snapshot(context, instance_id, name, 'snapshot') + return self._create_image(context, instance_id, name, 'snapshot') - def _snapshot(self, context, instance_id, name, image_type, rotation=None): - """Snapshot an instance on this host. + def _create_image(self, context, instance_id, name, image_type, + backup_type=None, rotation=None): + """Create snapshot or backup for an instance on this host. :param context: security context :param instance_id: nova.db.sqlalchemy.models.Instance.Id :param name: string for name of the snapshot - :param image_type: snapshot | daily | weekly + :param image_type: snapshot | backup + :param backup_type: daily | weekly :param rotation: int representing how many backups to keep around; None if rotation shouldn't be used (as in the case of snapshots) """ @@ -734,12 +740,13 @@ class API(base.Base): properties = {'instance_uuid': instance['uuid'], 'user_id': str(context.user_id), 'image_state': 'creating', - 'image_type': image_type} + 'image_type': image_type, + 'backup_type': backup_type} sent_meta = {'name': name, 'is_public': False, 'status': 'creating', 'properties': properties} recv_meta = self.image_service.create(context, sent_meta) params = {'image_id': recv_meta['id'], 'image_type': image_type, - 'rotation': rotation} + 'backup_type': backup_type, 'rotation': rotation} self._cast_compute_message('snapshot_instance', context, instance_id, params=params) return recv_meta diff --git a/nova/compute/manager.py b/nova/compute/manager.py index ca66d0387..1458ea41f 100644 --- a/nova/compute/manager.py +++ b/nova/compute/manager.py @@ -476,13 +476,15 @@ class ComputeManager(manager.SchedulerDependentManager): @exception.wrap_exception def snapshot_instance(self, context, instance_id, image_id, - image_type='snapshot', rotation=None): + image_type='snapshot', backup_type=None, + rotation=None): """Snapshot an instance on this host. :param context: security context :param instance_id: nova.db.sqlalchemy.models.Instance.Id :param image_id: glance.db.sqlalchemy.models.Image.Id - :param image_type: snapshot | daily | weekly + :param image_type: snapshot | backup + :param backup_type: daily | weekly :param rotation: int representing how many backups to keep around; None if rotation shouldn't be used (as in the case of snapshots) """ @@ -504,13 +506,21 @@ class ComputeManager(manager.SchedulerDependentManager): 'expected: %(running)s)') % locals()) self.driver.snapshot(instance_ref, image_id) - if rotation and image_type == 'snapshot': + + if image_type == 'snapshot' and rotation: raise exception.ImageRotationNotAllowed - elif rotation: - instance_uuid = instance_ref['uuid'] - self.rotate_backups(context, instance_uuid, image_type, rotation) + elif image_type == 'backup': + if rotation: + instance_uuid = instance_ref['uuid'] + self.rotate_backups(context, instance_uuid, backup_type, + rotation) + else: + raise exception.RotationRequiredForBackup + else: + raise Exception(_('Image type not recognized %s') % image_type) + - def rotate_backups(self, context, instance_uuid, image_type, rotation): + def rotate_backups(self, context, instance_uuid, backup_type, rotation): """Delete excess backups associated to an instance. Instances are allowed a fixed number of backups (the rotation number); @@ -519,12 +529,13 @@ class ComputeManager(manager.SchedulerDependentManager): :param context: security context :param instance_uuid: string representing uuid of instance - :param image_type: snapshot | daily | weekly + :param backup_type: daily | weekly :param rotation: int representing how many backups to keep around; None if rotation shouldn't be used (as in the case of snapshots) """ image_service = nova.image.get_default_image_service() - filters = {'property-image_type': image_type, + filters = {'property-image_type': 'backup', + 'property-backup_type': backup_type, 'property-instance_uuid': instance_uuid} images = image_service.detail(context, filters=filters) num_images = len(images) |