[LinuxUsers] Puppet and Viper

[Greg Nolan]

> What's nice about etch is the "staged" roll out (I forget what it's called)
> using the tags feature. It wasn't too long ago that I committed something
> that dropped user accounts off of our dev boxes. I was able to mark the tag
> as "broken", everything reverted and I fixed what it was that broke.

I think Jason (etch developer) calls it Controlled Deployment.  The
changes roll out in order (qa -> dev -> int -> prod) so mistakes are
realized before they hit production.

-g