Synnefo

@register.filter(name="get_os")

def get_os(vm):

    try:

        return vm.metadata.filter(meta_key="OS").get().meta_value

    except:

        return "unknown"

get_os.is_safe = True

@register.filter(name="network_vms")

def network_vms(network, account):

    vms = []

    for nic in network.nics.filter(machine__userid=account):

        vms.append(nic.machine)

    return vms

network_vms.is_safe = True