[pve-devel] ceph: clone vm

[Alexandre DERUMIER]

>>What is the reason to need to todo a full clone template first? 

Technically, it could be possible to clone from a snapshot from a running vm (without template),

But if I remember, Dietmar wanted to have something working with all storage type. (mainly for .raw,qcow2 where you need to have a locked template image which don't use snapshot).

It was also simpler to manage parent-clone->parent->clone chains like this.


Maybe could we introduce this feature (for ceph,sheepdog,..), cloning from a snapshot.

Don't have time to work on this for now, patches are welcome ;)


----- Mail original ----- 

De: "Stefan Priebe - Profihost AG" <s.priebe at profihost.ag> 
À: "Alexandre DERUMIER" <aderumier at odiso.com> 
Cc: pve-devel at pve.proxmox.com 
Envoyé: Mercredi 5 Février 2014 14:06:19 
Objet: Re: [pve-devel] ceph: clone vm 

Hi Alexandre, 

yes but only for templates. 

I would give an example where this makes no or less sense. 

You have a running VM and you want to test how an software upgrade 
performs and may be you must test this multiple times to fix your 
upgrade script. 

Right now i need to make a FULL CLONE, than make a template and then 
snap clone from the template to be able to do this very fast. 

I would really like to skip the full clone or template step in this case 
so i can do very fast clones (< 3s) from running vms to test upgrades. 

What is the reason to need to todo a full clone template first? 

Thanks, 
Stefan 

Am 05.02.2014 14:00, schrieb Alexandre DERUMIER: 
> Hi Stefan, 
> 
> Full clone use drive-mirror from qemu. 
> 
> But we support cloning from a snapshot (with rbd clone). 
> 
> (you can create template from a vm then clone it) 
> 
> 
> 
> ----- Mail original ----- 
> 
> De: "Stefan Priebe - Profihost AG" <s.priebe at profihost.ag> 
> À: pve-devel at pve.proxmox.com 
> Envoyé: Mercredi 5 Février 2014 11:47:28 
> Objet: [pve-devel] ceph: clone vm 
> 
> Hi, 
> 
> did i miss something or is it correct that proxmox only supports full 
> clone of a vm for ceph? instead of using the rbd clone command to "thin" 
> clone. 
> 
> Stefan 
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