[openstack-dev] [glance] [nova] Verification of glance images before boot

Chris Friesen chris.friesen at windriver.com
Wed Sep 9 17:40:55 UTC 2015


On 09/09/2015 10:53 AM, Poulos, Brianna L. wrote:
> Stuart is right about what will currently happen in Nova when an image is
> downloaded, which protects against unintentional modifications to the
> image data.
>
> What is currently being worked on is adding the ability to verify a
> signature of the checksum.

It should be noted that this does not protect against a compromised compute node.

For an end-user that cares about this case, I think you'd pretty much need 
self-checking within the guest to ensure that its running system matches a 
downloaded manifest (or something like that).

Chris



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