[libvirt-users] Convincing libvirt to create a bridge device?

[Lars Kellogg-Stedman]

I was hoping that I could delegate creation of bridge devices to
libvirt for address-less bridges, in order to not have to deal with
the various ways distributions handle persistent network
configuration, but while this creates a libvirt network...

  <network>
    <name>provision</name>
    <forward mode='bridge'/>
    <bridge name='brprov'/>
  </network>

...it doesn't actually create the bridge.  Configuring the bridge
using either <forward mode="route"/> or <forward mode="nat"/> *will*
create the bridge device, but both of these require assigning an
address to the bridge which means I have to suddenly worry about
IPAM and conflicts with local networks.

I look at the various interface-related commands, and there is an
"iface-bridge" command but this requires a physical interface.

Is there any way to convince libvirt to create the bridge device for a
<forward mode='bridge'/> network?

-- 
Lars Kellogg-Stedman <lars at redhat.com> | larsks @ {freenode,twitter,github}
Cloud Engineering / OpenStack          | http://blog.oddbit.com/

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