Hi, In Kolla, we are having an issue with Nova's VNC / SPICE address and live migration. Currently, we are declaring the IP address for vncserver_listen on each node (via ansible). However, when a live migration is performed, it fails due to this address not being available.
The hack is to switch the vncserver_listen to be 0.0.0.0, but this is horribly insecure and breaks the network isolation that kolla supports. Looking at the relevant code, this looks like it should be functional via VIR_DOMAIN_XML_MIGRATABLE, but it doesn't seem to be working. Could someone from Nova help us determine the cause? We are tracking this as bug 1596724 https://github.com/openstack/nova/blob/04cef3b5d03be3db7efab6896de867fc2cbbd03a/nova/virt/libvirt/driver.py#L5393 https://github.com/openstack/nova/blob/04cef3b5d03be3db7efab6896de867fc2cbbd03a/nova/virt/libvirt/driver.py#L5754 Thanks -- Kind Regards, Dave Walker
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