[chef] Re: Re: Uniquely identify a node

[Julien Vehent < >]

On 2012-10-07 13:19, Daniel DeLeo wrote:

> On Sunday, October 7, 2012 at 10:12 AM, Julien Vehent wrote:
>
> > Hi all,
> > I'm working on a cookbook that distributes keys to nodes. It keeps a
> > history
> > of the distributions, by identifying a node based on the fqdn.
> > This is not ideal, because if we recreate a node and reuse the fqdn,
> > then my
> > cookbook won't redistribute the key to it (until a timer expires after
> > several hours). So I'm looking for a better way to uniquely identify a
> > node.
> >
> > I considered using UUIDs stored in node['filesystem'] but their
> > locations
> > are not deterministic (some nodes use LVM, others just have directly
> > attached
> > disks, ...).
> >
> > Does Chef have a parameter that uniquely identifies a node ?
> >
> > Thanks,
> > Julien
>
> Off the top of my head, I'd say you can do this pretty easily in a
> cookbook with something like:
>
> node.set_unless[:uuid] = UUIDTools::UUID.random_create.to_s


I like that idea. I can set a UUID in the client recipe that the server will 
look up.

Thanks!
Julien