[Kimchi-devel] [V1 0/2] Add Users/Groups to VM

[Crístian Viana]

On 21-07-2014 14:28, Aline Manera wrote:
>
> General comments:
>
> 1) I'd like to edit the VM permission when it is running
>     I think it is possible but it is good to have a input from the 
> original authors - Sheldon and Cristian
>
>     Sheldon, Cristian, is it possible to set the metadata element to a 
> running VM?
It should be. The function "setMetadata" has the parameter "flags" (the 
last one, optional) which is used to indicate whether the change will 
affect the live VM, the persistent configuration or both. I haven't 
tested it, but that should work.

However I'm not sure how that will work on systems without a libvirt 
version which supports the function "setMetadata". Currently, we're 
redefining the VM by rewriting its XML description just to update the 
metadata information. I'd say that this doesn't affect a live VM because 
it's a redefinition, not a VM update. In other words, what would happen 
if we redefine a VM XML for anything else (e.g. CPU count, memory, disk, 
etc)? Does that change happen on the live VM? The same thing should 
happen when updating the metadata via this method.
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