--- features: - | Add support for native TLS encryption on NBD for disk migration The NBD protocol previously runs in clear text, offering no security protection for the data transferred, unless it is tunnelled over some external transport like SSH. Such tunnelling is inefficient and inconvenient to manage. Support for TLS to the NBD clients & servers provided by QEMU was added. In tls-everywhere use case we want to take advantage of this feature to create the certificates and configure qemu to use nbd tls.