[libvirt-users] Configuration file question

[Eric Blake]

On 12/10/2012 09:09 AM, David Mitchell wrote:
> 
> On Dec 10, 2012, at 8:28 AM, David Mitchell wrote:
>>
>>
>> I think I can probably manage to have some kind of script which can help ensure that my servers are in sync using only the libvirt API and ignoring the config files. I think I am still a little unclear on exactly how transient transient is. In my mind only the persistent and defined objects would actually have their configuration saved in a file and persist across reboots. It's surprising to me that so-called transient objects are also saved in config files and can persist across reboots.

Transient data is saved so that it can survive libvirtd restarts; but it
should not survive host restarts.  Contents in /var/libvirt should not
survive a reboot.

> 
> I should probably add that part of the confusion to me seems to be related to the fact that I can't find a way to have virsh tell me if something is persistent or transient, at least with respect to a network object. There are specific flags for domains but not for other object types. 

[Your mailer doesn't wrap long lines, which makes it a bit harder to read]

# dump the persistent definition:
virsh net-dumpxml $net --inactive

# dump the transient definition, if the network is running:
virsh net-dumpxml $net

# determine which networks are persistent vs. transient:
virsh  net-list --all

This design mirrors the same things done for domains.

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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