[ovirt-users] configuring bonding on host

[Fabrice Bacchella]

> 
> I think I will soon have more questions about what is a modified or removed object when creating bond, but I will need to play a little more with it.
> 

Ok, I started to play with the right setupnetworks, and I'm getting strange results.

When I try to transform an eth0 attachement to a bond attachement, I get 

Cannot setup Networks. Network Interface 'eth0' cannot become slave, there's network 'ovirtmgmt' attached to it.

I tried to have a look at the command that the UI send and don't get it. It says :

networks='[HostNetwork:{defaultRoute='true', bonding='true', networkName='ovirtmgmt', nicName='bond0', vlan='null', mtu='9000', vmNetwork='true', stp='false', properties='[]', bootProtocol='DHCP', address='null', netmask='null', gateway='null'}]', 
removedNetworks='[]', 
bonds='[Bond:{id='ffcfe313-7607-4347-b797-aa9c3260e221', name='bond0', vdsId='null', networkName='ovirtmgmt', bootProtocol='DHCP', address='null', subnet='null', gateway='null', mtu='9000', bridged='true', type='2', networkImplementationDetails='null', qos='null', macAddress='null', bondOptions='mode=4 miimon=100', labels='null', slaves='[eth0, eth1]'}]', 
removedBonds='[Bond:{id='ffcfe313-7607-4347-b797-aa9c3260e221', name='bond0', vdsId='null', networkName='ovirtmgmt', bootProtocol='DHCP', address='null', subnet='null', gateway='null', mtu='9000', bridged='true', type='2', networkImplementationDetails='null', qos='null', macAddress='null', bondOptions='mode=4 miimon=100', labels='null', slaves='[eth0, eth1]'}]'}),

 What I'm doing is quite close, there is a modified network and modified bond. But what about the removedBonds ? They was no bonding before that

My code is :

bond_name = kwargs['bond_name']
mtu = kwargs.pop('mtu', None)
nics = []
for if_name in kwargs['interfaces']:
    nic = params.HostNIC(name=if_name)
    if mtu is not None:
        nic.set_mtu(mtu)
    nics.append(nic)

bonding = params.Bonding(
    slaves=params.Slaves(host_nic=nics),
    options=params.Options(
        option=map(lambda (x, y): params.Option(name=x, value=y), kwargs.pop('bond_options', {}).iteritems() )
    )
)

bonded_if = params.HostNIC(name=bond_name, bonding=bonding)

if mtu is not None:
    bonded_if.set_mtu(mtu)

ip = kwargs.pop('ip', None)
gateway = kwargs.pop('gateway', None)
if ip is not None:
    ip = unicode(ip)
    ip_addr = ipaddress.ip_address(ip.split('/')[0])
    ip_net = ipaddress.ip_network(ip, strict=False)
    ip_conf = params.IP(address=str(ip_addr),
                             netmask=str(ip_net).split('/')[0])
    if gateway is not None:
        ip_conf.set_gateway(gateway)
    ip_assignment = params.IpAddressAssignment(assignment_method="static", ip=ip_conf)
elif kwargs.pop('dhcp', False):
    ip_assignment = params.IpAddressAssignment(assignment_method="dhcp", ip=params.IP())

bonded_network = params.NetworkAttachment(network=params.Network(name=kwargs['network']),
                                          host_nic=params.HostNIC(name=bond_name),
                                          ip_address_assignments=params.IpAddressAssignments([ip_assignment]))

return self.broker.setupnetworks(params.Action(modified_bonds = params.HostNics(host_nic = [bonded_if]),
                                               modified_network_attachments = params.NetworkAttachments(network_attachment=[bonded_network]),
                                               )
                                 )

And it generates :

> POST /api/hosts/db240f83-9266-4892-a6d2-8ac406cadfb1/setupnetworks HTTP/1.1
> <action>
>     <modified_network_attachments>
>         <network_attachment>
>             <network>
>                 <name>ovirtmgmt</name>
>             </network>
>             <host_nic>
>                 <name>bond0</name>
>             </host_nic>
>             <ip_address_assignments>
>                 <ip_address_assignment>
>                     <ip/>
>                     <assignment_method>dhcp</assignment_method>
>                 </ip_address_assignment>
>             </ip_address_assignments>
>         </network_attachment>
>     </modified_network_attachments>
>     <modified_bonds>
>         <host_nic>
>             <name>bond0</name>
>             <bonding>
>                 <options>
>                     <option name="miimon" value="100"/>
>                     <option name="mode" value="4"/>
>                     <option name="xmit_hash_policy" value="2+3"/>
>                 </options>
>                 <slaves>
>                     <host_nic>
>                         <name>eth0</name>
>                     </host_nic>
>                     <host_nic>
>                         <name>eth1</name>
>                     </host_nic>
>                 </slaves>
>             </bonding>
>         </host_nic>
>     </modified_bonds>
> </action>


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