cloudstack/scripts/vm/hypervisor/xenserver/cloudlog

/var/log/cloud/vmops.log {
    daily
    size 1M
    rotate 20
}

/var/log/cloud/ovstunnel.log /var/log/cloud/ovs-pvlan.log /var/log/cloud/swiftxen.log /var/log/cloud/s3xen /var/log/cloud/storageplugin {
    daily
    size 1M
    rotate 2
}