[Users] python-sdk : how to modify a vm to "Run on" a "Specific" host and set "Migration Options

[Michael Pasternak]

Hi,

take a look at vm.start.__doc__ it should have all the answers you're looking for,
as about migrate options, these two [1] are responsible for pinning vm to specific host,
possible options for the 'affinity' can be seen at <vm_affinities> [2].

[1]

[@param action.vm.placement_policy.host.id|name: string]
[@param action.vm.placement_policy.affinity: string]

[2]

http[s]://host[:port]/api/capabilities


On 12/27/2013 11:54 PM, karthik S wrote:
> Dear Users,
> 
> I am karthik, based in Mountain View, CA. I have been using python ovirtsdk for QA Automation tests for RHEV-M for past two months. My knowledge on ovirtsdk is intermittent
> at this stage.
> 
> I want to do the below actions that we do on rhev-M using python ovirtsdk.
> 
> On, RHEV-M UI
> ============
> 1) right click a offline VM >> Edit >> Host >> "Run On:" >> Specific >. choose a hostname
> 2) right click a offline VM >> Edit >> Host >>  "Migration Options:" >> "Do not allow migration"
> 
> python Code:
> ==========
> 
> 1) The VM was imported from export domain to my storage_domain using the code
> 
> 
>     def import_vm(self, source_vm_name, dest_vm_name, storage_domain_name, rhev_host_name=None, cluster_name="Default",  async=False):
>         """
>             Import VM From a Export domain into your storage domain
>         """
>         timeoutSec=1800
>         pollInterval=2
> 
>         exportStorageDomain = self.api.storagedomains.list(type_="export")[0]
>         actionParams = params.Action(
>                                      storage_domain=self.api.storagedomains.get(storage_domain_name),
>                                      cluster=self.api.clusters.get("Default"),
>                                      clone=1,
>                                      vm = params.VM (name=dest_vm_name,
>                                                      snapshots=params.Snapshots(collapse_snapshots=1),
>                                                      disks = params.Disks(clone = 1),
>                                                      host = params.Host(name=rhev_host_name)
>                                     ))
> 
>         exportStorageDomain.vms.get(source_vm_name).import_vm(actionParams)
>         start = time.time()
>         while self.api.vms.get(dest_vm_name).status.state != 'down':
>                 if time.time() - start > timeoutSec:
>                     raise Exception("Timed out (%s) waiting for %s to obtain down status" % (timeoutSec, vm_name))
>                 time.sleep(pollInterval)
> 
>         return self.api.vms.get(name=dest_vm_name)[0]
> 
> 
> Issue :  Upon import, this method did not set the "Run as" to the specified host  but "Run as" was set to "Any host in the cluster".  Am I missing something ?
> 
> 2) Secondly, I tried modifying the VM "Run as" hostname with the below code
> 
>>>> api = API (url = "xx" , username ="XX", pasword ="XX", ca_file = "ca")
>>>> vm_obj = api.vms.list(name="test_vm_101")[0]
>>>> vm_obj.set_host="rhev1"
>>>> vm_obj.update()
> 
> This did not help either. Seems I am missing something..
> 
> 
> 3) finally how to set " "Migration Options" ?
> 
> 
> Your help would appreciated and will help me to get greater understanding of the SDK itself.
> 
> Thanks,
> Karthik
> 
> 
> 
> 
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> 


-- 

Michael Pasternak
RedHat, ENG-Virtualization R&D