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Message #74512
[Bug 1789868] [NEW] RFE: Add a virtio-rng device to Nova instances by default
Public bug reported:
What do we want: Entropy!
When do we want it: By default!
Nova don't add a RNG to the guests by default; this seems a serious
problem - the guests should get a good entropy source to ensure that
everything during boot gets randomised, and also you sometimes get hangs
where guests are starved of entropy (there are some newer guest kernels
that seem more prone to this, but still it's a more general problem).
Old arguments for why we didn't have a virtio-rng by default:
a) We were using hosts /dev/random and it could block - we moved to urandom and that problem doesn't exist any more
b) We didn't have windows drivers? We do now
(IMHO this is fairly important - we really should have the RNG)
** Affects: nova
Importance: Medium
Assignee: Kashyap Chamarthy (kashyapc)
Status: Triaged
** Tags: libvirt
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https://bugs.launchpad.net/bugs/1789868
Title:
RFE: Add a virtio-rng device to Nova instances by default
Status in OpenStack Compute (nova):
Triaged
Bug description:
What do we want: Entropy!
When do we want it: By default!
Nova don't add a RNG to the guests by default; this seems a serious
problem - the guests should get a good entropy source to ensure that
everything during boot gets randomised, and also you sometimes get
hangs where guests are starved of entropy (there are some newer guest
kernels that seem more prone to this, but still it's a more general
problem).
Old arguments for why we didn't have a virtio-rng by default:
a) We were using hosts /dev/random and it could block - we moved to urandom and that problem doesn't exist any more
b) We didn't have windows drivers? We do now
(IMHO this is fairly important - we really should have the RNG)
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