def get_disk_id(request, vm, data, key='disk_id', default=1):
"""Get disk_id from data and return additional disk information"""
disk_id = data.get(key, default)
# noinspection PyBroadException
try:
disk_id = int(disk_id)
if not disk_id > 0:
raise ValueError
disk = vm.json_active_get_disks()[disk_id - 1]
zfs_filesystem = disk['zfs_filesystem']
real_disk_id = Snapshot.get_real_disk_id(disk)
except:
raise InvalidInput('Invalid %s' % key)
return disk_id, real_disk_id, zfs_filesystem
def vm_delete_snapshots_of_removed_disks(vm):
"""
This helper function deletes snapshots for VM with changing disk IDs. Bug #chili-363
++ Bug #chili-220 - removing snapshot and backup definitions for removed disks.
"""
removed_disk_ids = [
Snapshot.get_real_disk_id(i)
for i in vm.create_json_update_disks().get('remove_disks', [])
]
if removed_disk_ids:
Snapshot.objects.filter(vm=vm, disk_id__in=removed_disk_ids).delete()
SnapshotDefine.objects.filter(vm=vm,
disk_id__in=removed_disk_ids).delete()
Backup.objects.filter(vm=vm, disk_id__in=removed_disk_ids,
last=True).update(last=False)
BackupDefine.objects.filter(vm=vm,
disk_id__in=removed_disk_ids).delete()
return removed_disk_ids
def vm_backup_cb(result, task_id, vm_uuid=None, node_uuid=None, bkp_id=None):
"""
A callback function for api.vm.backup.views.vm_backup.
"""
bkp = Backup.objects.select_related('vm', 'dc').get(id=bkp_id)
action = result['meta']['apiview']['method']
json = result.pop('json', '')
message = result.get('message', json)
data = {}
obj_id = vm_uuid or node_uuid
success = False
try: # save json from esbackup
data = bkp.json.load(json)
except Exception as e:
logger.error(
'Could not parse json output from %s vm_backup(%s, %s). Error: %s',
action, obj_id, bkp, e)
result['detail'] = message or json
else:
success = data.get('success', False)
try:
result['detail'] = _vm_backup_cb_detail(data)
except Exception as ex:
logger.exception(ex)
result['detail'] = json.replace('\n', '')
msg = data.get('msg', message)
if action == 'PUT':
vm = Vm.objects.get(uuid=vm_uuid)
obj = vm
else:
vm = None
obj = bkp.vm or bkp.node
if bkp.type == Backup.DATASET:
if action == 'POST':
_vm_backup_update_snapshots(
data, 'new_name',
'file_path') # Update file_path of archived backups
_vm_backup_deleted_last_snapshot_names(
data) # Remove last flag from deleted snapshots
elif action == 'DELETE':
_vm_backup_update_snapshots(
data, 'written',
'size') # Update size of remaining backups
_vm_backup_deleted_last_snapshot_names(
data) # Remove last flag from deleted snapshots
if result['returncode'] == 0 and success:
if action == 'POST':
if bkp.type == Backup.DATASET:
bkp.file_path = data.get('backup_snapshot', '')
bkp.size = data.get('backup_snapshot_size', None)
if data.get('last_snapshot_name', None):
bkp.last = True
else:
bkp.file_path = data.get('file', '')
bkp.size = data.get('size', None)
bkp.checksum = data.get('checksum', '')
result['message'] = 'Backup successfully created'
if bkp.fsfreeze:
if 'freeze failed' in msg:
bkp.fsfreeze = False
result['message'] += ' (filesystem freeze failed)'
MonitoringBackend.vm_send_alert(
bkp.vm,
'Backup %s of server %s@disk-%s was created, but filesystem freeze '
'failed.' %
(bkp.name, bkp.vm.hostname, bkp.array_disk_id),
priority=MonitoringBackend.WARNING)
bkp.manifest_path = data.get('metadata_file', '')
bkp.time = data.get('time_elapsed', None)
bkp.status = bkp.OK
bkp.save()
if bkp.define and bkp.define.retention: # Retention - delete oldest snapshot
assert bkp.vm == bkp.define.vm
assert bkp.disk_id == bkp.define.disk_id
from api.vm.backup.views import vm_backup_list
_delete_oldest(Backup, bkp.define, vm_backup_list, 'bkpnames',
task_id, LOG_BKPS_DELETE)
bkp.update_zpool_resources()
elif action == 'PUT':
bkp.status = bkp.OK
bkp.save_status()
if result['meta']['apiview']['force']: # Remove all snapshots
disk = vm.json_active_get_disks()[
result['meta']['apiview']['target_disk_id'] - 1]
real_disk_id = Snapshot.get_real_disk_id(disk)
# TODO: check indexes
Snapshot.objects.filter(vm=vm, disk_id=real_disk_id).delete()
vm.revert_notready()
result['message'] = 'Backup successfully restored'
elif action == 'DELETE':
bkp.delete()
bkp.update_zpool_resources()
result['message'] = 'Backup successfully deleted'
else:
_vm_backup_cb_failed(result, task_id, bkp, action,
vm=vm) # Delete backup or update backup status
logger.error(
'Found nonzero returncode in result from %s vm_backup(%s, %s). Error: %s',
action, obj_id, bkp, msg)
raise TaskException(result,
'Got bad return code (%s). Error: %s' %
(result['returncode'], msg),
bkp=bkp)
task_log_cb_success(result, task_id, obj=obj, **result['meta'])
return result
def vm_snapshot_cb(result, task_id, vm_uuid=None, snap_id=None):
"""
A callback function for api.vm.snapshot.views.vm_snapshot.
"""
snap = Snapshot.objects.select_related('vm').get(id=snap_id)
vm = Vm.objects.get(uuid=vm_uuid)
action = result['meta']['apiview']['method']
msg = result.get('message', '')
if result['returncode'] == 0:
if msg:
# noinspection PyBroadException
try:
result['detail'] = _vm_snapshot_cb_detail(json.loads(msg))
except Exception:
result['detail'] = 'msg=' + to_string(msg)
else:
result['detail'] = ''
if action == 'POST':
assert vm == snap.vm
snap.status = snap.OK
result['message'] = 'Snapshot successfully created'
if snap.fsfreeze:
if 'freeze failed' in msg:
snap.fsfreeze = False
result['message'] += ' (filesystem freeze failed)'
MonitoringBackend.vm_send_alert(
vm,
'Snapshot %s of server %s@disk-%s was created, but filesystem '
'freeze failed.' %
(snap.name, vm.hostname, snap.array_disk_id),
priority=MonitoringBackend.WARNING)
snap.save(update_fields=('status', 'fsfreeze'))
if snap.define and snap.define.retention: # Retention - delete oldest snapshot
assert vm == snap.define.vm
assert snap.disk_id == snap.define.disk_id
from api.vm.snapshot.views import vm_snapshot_list
_delete_oldest(Snapshot, snap.define, vm_snapshot_list,
'snapnames', task_id, LOG_SNAPS_DELETE)
elif action == 'PUT':
if vm != snap.vm:
snap.vm.revert_notready()
vm.revert_notready()
snap.status = snap.OK
snap.save_status()
if result['meta']['apiview']['force']:
if snap.vm == vm:
# TODO: check indexes
Snapshot.objects.filter(vm=vm,
disk_id=snap.disk_id,
id__gt=snap.id).delete()
else:
disk = vm.json_active_get_disks()[
result['meta']['apiview']['target_disk_id'] - 1]
real_disk_id = Snapshot.get_real_disk_id(disk)
# TODO: check indexes
Snapshot.objects.filter(vm=vm,
disk_id=real_disk_id).delete()
result['message'] = 'Snapshot successfully restored'
elif action == 'DELETE':
assert vm == snap.vm
snap.delete()
result['message'] = 'Snapshot successfully deleted'
else:
_vm_snapshot_cb_failed(
result, task_id, snap, action,
vm=vm) # Delete snapshot or update snapshot status
logger.error(
'Found nonzero returncode in result from %s vm_snapshot(%s, %s). Error: %s',
action, vm_uuid, snap, msg)
raise TaskException(result,
'Got bad return code (%s). Error: %s' %
(result['returncode'], msg),
snap=snap)
task_log_cb_success(result, task_id, vm=vm, **result['meta'])
return result