Re: [ovirt-users] ovirt-engine-sdk-python-4.1 clone a vm from snapshot

On 03/08/2017 06:53 PM, Niyazi Elvan wrote: > Hi Folks ! > > I am looking for a documentation for ovirt-engine-sdk-python-4.1 but > could not find anything yet. Looks like there are many changes compared > to 4.0. > Version 4.1 of the SDK isn't very different for version 4.0. It is very different from version 3.6. Note that version 3 of the API, and version 3 of the SDK are deprecated since version 4.0 of the engine, and they will be removed in version 4.2 of the engine. There is a general description of version 4 of the SDK here: https://github.com/oVirt/ovirt-engine-sdk/blob/master/sdk/README.adoc A collection of examples here: https://github.com/oVirt/ovirt-engine-sdk/tree/master/sdk/examples And reference documentation here: http://ovirt.github.io/ovirt-engine-sdk/4.1 You may also find useful the documentation of the API itself: http://ovirt.github.io/ovirt-engine-api-model/4.1 Specially the section that describes how to add virtual machines, as there is an example of how to add a virtual machine from a snapshot there: http://ovirt.github.io/ovirt-engine-api-model/4.1/# services/vms/methods/add > Can anyone help me about how to clone a VM from a snapshot using the > latest sdk ? > To create a virtual machine from a snapshot with the latest version of the SDK you will need something like this: ---8<--- import time import ovirtsdk4 as sdk import ovirtsdk4.types as types # This example shows how to clone a virtual machine from an snapshot. # Create the connection to the server: connection = sdk.Connection( url='https://engine.example.com/ovirt-engine/api';, username='admin@internal', password='...', ca_file='ca.pem' ) # Get the reference to the root of the tree of services: system_service = connection.system_service() # Find the virtual machine: vms_service = system_service.vms_service() vm = vms_service.list(search='name=myvm')[0] # Find the service that manages the virtual machine: vm_service = vms_service.vm_service(vm.id) # Find the snapshot. Note that the snapshots collection doesn't support # search, so we need to retrieve the complete list and the look for the # snapshot that has the description that we are looking for. snaps_service = vm_service.snapshots_service() snaps = snaps_service.list() snap = next( (s for s in snaps if s.description == 'mysnap'), None ) # Create a new virtual machine, cloning it from the snapshot: cloned_vm = vms_service.add( vm=types.Vm( name='myclonedvm', snapshots=[ types.Snapshot( id=snap.id ) ], cluster=types.Cluster( name='mycluster' ) ) ) # Find the service that manages the cloned virtual machine: cloned_vm_service = vms_service.vm_service(cloned_vm.id) # Wait till the virtual machine is down, as that means that the creation # of the disks of the virtual machine has been completed: while True: time.sleep(5) cloned_vm = cloned_vm_service.get() if cloned_vm.status == types.VmStatus.DOWN: break # Close the connection to the server: connection.close() --->8---