[ovirt-users] python-sdk: attach disk snapshot to another virtual machine

[Michael Ablassmeier]

hi guys,

according to an commit in Oct. 2013 there was a patch added to the SDK
which allows to attach an existing snapshot to a virtual machine:

commit 72e67dd5406f3c193234697ce88d92dbe64759d7
Author: Michael pasternak <mpastern-H+wXaHxf7aLQT0dZR+***@public.gmane.org>
Date: Wed Oct 30 11:24:19 2013 +0200
sdk: regenerate against the latest api
[..]
- added ability to attach a disk snapshot to the virtual machine
[..]

I think this may be related to the new backup API:

http://www.ovirt.org/Features/Backup-Restore_API_Integration

can anyone give me an pointer on how to this through the python-sdk? Or
is there an example for this anywhere to be found? Thanks!

bye,
- michael

[Juan Hernandez]

Post by Michael Ablassmeier
hi guys,
according to an commit in Oct. 2013 there was a patch added to the SDK
commit 72e67dd5406f3c193234697ce88d92dbe64759d7
Date: Wed Oct 30 11:24:19 2013 +0200
sdk: regenerate against the latest api
[..]
- added ability to attach a disk snapshot to the virtual machine
[..]
http://www.ovirt.org/Features/Backup-Restore_API_Integration
can anyone give me an pointer on how to this through the python-sdk? Or
is there an example for this anywhere to be found? Thanks!

It should be something like this:

#!/usr/bin/python

import ovirtsdk.api
import ovirtsdk.xml

api = ovirtsdk.api.API(
url="https://fedora.example.com/ovirt-engine/api",
username="***@internal",
password="****",
insecure=True,
debug=False
)

# Find the snapshot that contains the disk that we want to backup:
vm = api.vms.get("myvm")
snaps = vm.snapshots.list()
snap = None
for current in snaps:
if current.get_description() == "mysnap":
snap = current

# Find the disk that we want to backup:
disks = snap.disks.list()
disk = None
for current in disks:
if current.get_name() == "mydisk":
disk = current

# Find the backup appliance VM:
appliance = api.vms.get("backupvm")

# Attach the disk to the backup appliance:
appliance.disks.add(disk)

# Tell the backup appliance to perform the backup, connecting
# with SSH, or with any other way that the backup appliance
# supports.

# Bye:
api.disconnect()

With a similar script you can also disconnect the disk from the backup
appliance.