[Kimchi-devel] RFC: Templates API changes for 'networks' attribute

[Suresh Babu Angadi]

Hi All,
To support, attaching a physical interface to guest as macvtap or 
attaching ovs bridge to guest without creating libvirt network, I 
propose following changes to 'networks' attribute of templates josn.

current implementation:
'networks' attribute expects list of virtual network names

changes:
'networks': list of dictionary
                 type: can be direct, network or bridge
                 interface: name of physical interface(type=direct) or 
ovs (type=bridge) or virtual network(type=direct)
                 mode(required if type=direct): bridge or vepa

for macvtap: type is direct and mode can be bridge or vepa
for ovs: type is bridge and mode is not required
for virtual network: type=network(current implementation)

Examples of network xml for attaching macvtap and ovs to guest without 
libvirt:
OVS:
<interface type="bridge">
   <source bridge="vswitch0"/>
   <virtualport type="openvswitch"/>
   <model type="virtio"/>
</interface>

macvtap with bridge mode:
<interface type="direct">
   <source dev="eth0" mode="bridge"/>
   <model type="virtio"/>
</interface>

  macvtap with vepa mode:
<interface type="direct">
   <source dev="bond0" mode="vepa"/>
   <model type="virtio"/>
</interface>

-- 
Regards,
Suresh Babu Angadi