[libvirt] persistent->transient [was: [PATCH 8/8] UndefineFlags: Extend virsh undefine to support new flag]

[Eric Blake]

On 07/13/2011 09:56 PM, Osier Yang wrote:
>>> -=item B<undefine>  I<domain-id>
>>> +=item B<undefine>  I<domain-id>  optional I<--undefine-managed-state>
>>>
>>>   Undefine the configuration for an inactive domain. Since it's not
>>> running
>>>   the domain name or UUID must be used as the I<domain-id>.
>> Oh, this is different than libvirt.c, which claimed you can run
>> 'undefine' on a running persistent domain.  Which is it?  Can undefine
>> make a running domain transient, or must it be on an inactive domain?
> 
> No, document in libvirt.c is not correct, undefining on a running domain
> will be refused.

I argue that we found a bug in the qemu driver then.

Right now, you can use 'virDomainDefineXML' to convert a transient guest
into a persistent one, but there is no counterpart operation to convert
a persistent guest back into a transient one.

That is, I think the libvirt.c docs are right in implying that you can
'undefine' a running domain, and that the qemu driver needs to be fixed
to allow this use case.

Either Dan, do you want to weigh in on this API question?

-- 
Eric Blake   eblake at redhat.com    +1-801-349-2682
Libvirt virtualization library http://libvirt.org

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