Description of problem:
In nova/conf/libvirt.py there is:
cfg.StrOpt('rng_dev_path',
help='A path to a device that will be used as source of '
'entropy on the host. Permitted options are: '
'/dev/random or /dev/hwrng'),
This note about devices is outdated.
Since libvirt 1.3.4, any path is permitted:
https://libvirt.org/formatdomain.html#elementsRng
And in particular /dev/urandom *is* a valid choice, and indeed a good
default choice, since /dev/random is quite limited and easily blocks.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHEA-2019:0045
Description of problem: In nova/conf/libvirt.py there is: cfg.StrOpt('rng_dev_path', help='A path to a device that will be used as source of ' 'entropy on the host. Permitted options are: ' '/dev/random or /dev/hwrng'), This note about devices is outdated. Since libvirt 1.3.4, any path is permitted: https://libvirt.org/formatdomain.html#elementsRng And in particular /dev/urandom *is* a valid choice, and indeed a good default choice, since /dev/random is quite limited and easily blocks.