[ovirt-users] Query on VM Clone

[Alexander Wels]

On Thursday, March 29, 2018 7:59:36 AM EDT Ondra Machacek wrote:
> On 03/29/2018 01:02 PM, Karli Sjöberg wrote:
> > On Thu, 2018-03-29 at 11:21 +0200, Ondra Machacek wrote:
> >> On 03/29/2018 11:09 AM, Hari Prasanth Loganathan wrote:
> >>> Hi Team,
> >>> 
> >>> 1) I perform the VM clone using the following API
> >>> 
> >>> api/vms/{vmId}/clone
> >>> 
> >>> 2) The above API is returning the job id
> >>> 3) Using the job Id, we continuously query the oVirt to get the
> >>> status
> >>> of the clone operation.
> >>> /api/jobs/${vmCloneJobId}
> >>> 
> >>>       We are able to successfully get the status of the clone
> >>> 
> >>> operation.
> >>> 
> >>> But the problem is, we are not able to identify the newly created
> >>> VM
> >>> (created using clone).
> >>> 
> >>> AFAIK, The only way to get the newly created VM is to get all the
> >>> VM
> >>> list from oVirt. Is there an easy way to identify the newly created
> >>> VM
> >>> using the jobId?
> >> 
> >> In order to run the clone operation you must pas the VM name, so you
> >> know the name, so later to fetch the VM you can just run:
> >> 
> >> api/vms?search=name=thenameofclonnedvm
> > 
> > Hijacking this a little, because I got curious about something:)
> > 
> > Is it possible to do regex searches? Because I remember working on
> > something different, the searches could potentially end up with
> > multiple matched objects, like "thenameofclonnedvm",
> > "thenameofclonnedvm-berta", "thenameofclonnedvm3" and so on. So I was
> > always forced to treat the result as a potential array, loop the
> > objects (this was with Python) and test for an exact match, even if it
> > was just one object. So it would be nicer if you could go like:
> > 
> > api/vms?search=name='^thenameofclonnedvm$'
> > 
> > And be sure to have an exact match every time. Is that possible?
> 
> You can read more about search engine here:
> 
> 
> https://www.ovirt.org/documentation/admin-guide/appe-Using_Search_Bookmarks_
> and_Tags/
> 
> So if you have for example following VMs in system:
> 
>   vm
>   vm1
>   vm2
>   vm3
> 
> And you do search like:
> 
>    api/vms?search=name=vm
> 
> It will return only single Vm called 'vm', but it always return a
> collection, but with just single item.
> 
> And you do search like:
> 
>   api/vms?search=name=vm*
> 
> It will return all VMs starting on 'vm' string. So it's collection of
> vm, vm1, vm2 and vm3.
> 
> So by default it search for exact string, but you may use wildcards to
> improve the search.
> 

You can also 'and' and 'or' different parameters, for instance

api/vms?search=name%3DVM1+or+name%3DVM2

which will return VM1 and VM2 if they exist. Note that you will need to URL 
encode your search string to replace all the '=' with %3D and space with +, 
etc. The only = that shouldn't be encoded is the = after search.

For an easy way to find what is available to search on for a particular 
entity, if you go into the webadmin in the search bar you can start typing and 
it will auto complete the different available options. AFAIC those match 
exactly to the search in the REST api.

> > TIA
> > 
> > /K
> > 
> >> Is this approach OK for you?
> >> 
> >>> Thanks,
> >>> Hari
> >>> 
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