Hi.
I am using openstack, ceph and libvirt now.
The live volume migration will call the libvirt rebase function in
openstack nova project.
https://github.com/openstack/nova/blob/stable/rocky/nova/virt/libvirt/driver.py#L1497
https://github.com/openstack/nova/blob/stable/rocky/nova/virt/libvirt/guest.py#L802
But I use the ceph as the openstack block backend. And the type of disk is
network in xml.
<disk type='network' device='disk'>
<driver name='qemu' type='raw' cache='writeback' discard='unmap'/>
<auth username='cinder'>
<secret type='ceph' uuid='86d3922a-b471-4dc1-bb89-b46ab7024e81'/>
</auth>
<source protocol='rbd'
name='volumes002/volume-127f46fc-ef10-4462-af30-c3893cda31f9'>
<host name='172.16.140.63' port='6789'/>
</source>
<target dev='vdb' bus='virtio'/>
<serial>127f46fc-ef10-4462-af30-c3893cda31f9</serial>
<alias name='virtio-disk1'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
</disk>
Now I found it is not supported to rebase network disk. It is only rebase
block or file disk now.
https://libvirt.org/html/libvirt-libvirt-domain.html#virDomainBlockRebase
My question is that can I rebase network disk by some other ways from
libvirt?
Cheers,
Boxiang
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