What is the difference between XenAPI and XenAPI-Extensions

What is the difference between XenAPI and XenAPI-Extensions

[D'Mita Levy]

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Hello,

I am a student at FIU working on a school project so I am a not very
experienced. Right now I am trying to use the Xen API code I found at
https://github.com/xenserver/xenadmin to Snapshot a VM. The project I have
so far uses the XenAPI.VM functions and I have been successful in starting
and stopping a VM. As an example I perform those actions like this:

     XenRef<VM> vmRef = VM.get_by_uuid(_session, vmUUID);
     VM.start(_session, vmRef.opaque_ref, false, true);

My mentors would like me to try and clone a VM. I have copied the Run()
function from VMSnapshotCreateAction.cs and I tried to make a snapshot with
the following code:

   XenRef<VM> vmRef = VM.get_by_uuid(_session, GetUUIDByName(vmName));
   SnapshotType m_Type = SnapshotType.DISK; //hardcoded snapshot type
   string snapshot_name = "Testing_Snapshot";

   XenAPI.VM.async_snapshot(_session, vmRef.opaque_ref, snapshot_name);

I have two VM's. A Windows XP SP3 VM (No actual OS installed, just the base
VM) and an Ubuntu 14.04 Trusty Tahr VM (installed OS and running). The
Windows XP SP3 Snapshot gets created successfully but the Ubuntu snapshot
does not.

Upon furthure inspection I notice that XenAPI.VM works for start/stop but
XenAPI-Extensions.VM is needed to make snapshots - based on
VMSnapshotCreateAction.cs

Why is it that I need XenAPI-Extensions.VM to createa  vm reference to make
snapshots and cannot use XenAPI.VM? What is the difference between XenAPI
and Extensions? Finally, is it possible just to pull out the code so that I
can have the core functionality; it seems adding it to my simple WPF
project requires a ton of dependencies and references....

Thanks,
D'Mita

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Re: What is the difference between XenAPI and XenAPI-Extensions

[Ian Campbell]

On Fri, 2015-09-04 at 14:49 -0400, D'Mita Levy wrote:
> Hello,

Hi.

xapi/XenAPI has it's own development list at xen-api@lists.xen.org where
you will likely find more people with the expertise to answer your
questions.

Ian.

> 
> I am a student at FIU working on a school project so I am a not very 
> experienced. Right now I am trying to use the Xen API code I found at 
> https://github.com/xenserver/xenadmin to Snapshot a VM. The project I 
> have so far uses the XenAPI.VM functions and I have been successful in 
> starting and stopping a VM. As an example I perform those actions like 
> this:
> 
>      XenRef<VM> vmRef = VM.get_by_uuid(_session, vmUUID);
>      VM.start(_session, vmRef.opaque_ref, false, true);
> 
> My mentors would like me to try and clone a VM. I have copied the Run() 
> function from VMSnapshotCreateAction.cs and I tried to make a snapshot 
> with the following code:
> 
>    XenRef<VM> vmRef = VM.get_by_uuid(_session, GetUUIDByName(vmName));
>    SnapshotType m_Type = SnapshotType.DISK; //hardcoded snapshot type
>    string snapshot_name = "Testing_Snapshot";
> 
>    XenAPI.VM.async_snapshot(_session, vmRef.opaque_ref, snapshot_name);
> 
> I have two VM's. A Windows XP SP3 VM (No actual OS installed, just the 
> base VM) and an Ubuntu 14.04 Trusty Tahr VM (installed OS and running). 
> The Windows XP SP3 Snapshot gets created successfully but the Ubuntu 
> snapshot does not.
> 
> Upon furthure inspection I notice that XenAPI.VM works for start/stop but 
> XenAPI-Extensions.VM is needed to make snapshots - based on 
> VMSnapshotCreateAction.cs 
> 
> Why is it that I need XenAPI-Extensions.VM to createa  vm reference to 
> make snapshots and cannot use XenAPI.VM? What is the difference between 
> XenAPI and Extensions? Finally, is it possible just to pull out the code 
> so that I can have the core functionality; it seems adding it to my 
> simple WPF project requires a ton of dependencies and references....
> 
> Thanks,
> D'Mita
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xen.org
> http://lists.xen.org/xen-devel