puppet-nova/releasenotes/notes/add_qemu_nbd_parameters-f8b...

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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. This adds support to configure ndb related
qemu.conf parameters.