[Openstack] Physical host identification

Chris Behrens chris.behrens at RACKSPACE.COM
Fri Jul 15 23:16:20 UTC 2011


I think it's sensitive because one could figure out how many hosts a SP has globally... which a SP might not necessarily want to reveal.

- Chris


On Jul 15, 2011, at 3:34 PM, karim.allah.ahmed at gmail.com wrote:

> On Fri, Jul 15, 2011 at 11:31 PM, Chris Behrens <chris.behrens at rackspace.com> wrote:
> Nevermind.  Just found a comment in the API spec that says "hostID" is unique per account, not globally.  Hmmm...
>  
> This is weird ! I can't find anything in the code that says so !! hostID is just a hashed version of the 'host' which is set as the 'hostname' of the physical machine and this isn't user sensitive. So, It's supposed to be a global thing !
> 
> Can somebody explain how this is a user sensitive ?
>  
> 
> 
> On Jul 15, 2011, at 2:27 PM, Chris Behrens wrote:
> 
> > I see the v1.1 API spec talks about a 'hostId' item returned when you list your instances (section 4.1.1 in the spec).  These should be the same thing, IMO.
> >
> > I think you're right, though.  I don't believe we have any sort of 'hostId' today, since hosts just become available by attaching to AMQP.
> >
> > - Chris
> >
> > On Jul 15, 2011, at 1:16 PM, Glen Campbell wrote:
> >
> >> I understand that we're all familiar with virtualization and its benefits. However, in the Real World, those of us who run clouds often need to work with physical devices. I've proposed a blueprint and spec for a /hosts admin API resource that would return information on physical hosts. However, I don't believe that there's any way for us to actually identify a specific server (I'm actually hoping I'm mistaken about this, because that would make my life easier).
> >>
> >> So, to get information about a specific host, you'd use /host/{id} — but what should go in the {id} slot?
> >>
> >> We'd also like to include this data elsewhere; for example, in error messages, it might help to know the physical device on which a server is created.
> >>
> >>
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> -- 
> Karim Allah Ahmed.
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