[libvirt-users] virsh snapshot-create --print-xml seems to ignore most arguments

Eric Blake eblake at redhat.com
Wed Nov 20 18:05:19 UTC 2019

On 11/20/19 11:14 AM, Timo Schneider wrote:
> Hi,
> I am wondering if the --print-xml option is working correctly. The
> output for two snapshot-create commands are the same, even though the
> first one includes additional options (no-metadata and atomic).

--no-metadata and --atomic merely pass additional flags to the API call; 
they do not affect the XML.  Remember, it is the combination of both the 
XML and the API flags that control what the API will do.

> I want to use the generated XML to create a snapshot via a perl script,
> and Sys::Virt only seems to support snapshots using a XML description
> of the arguments.

Yes, the perl bindings don't have the convenience wrappers like virsh, 
so you'll need the XML; but the perl bindings DO let you also pass in 
flags for the case where virsh has bool options for setting a flag.

Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3226
Virtualization:  qemu.org | libvirt.org

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