[chef] Updating Chef on a Vagrant Basebox

[Torben Knerr < >]

Hey Chefs,

what's the best way to update the Chef version that is installed on a
Vagrant Basebox?

Right now I'm using an Ubuntu 12.04 basebox with Chef 10.12.0. Is
there a recipe or so to update the chef client to a specific version?
Or would it be better to do that with a :shell provisionier before the
:chef_solo provision so that the latest version will be readily
availabe upopn the first chef run?

I wouldn't want to manage thousands of baseboxes for any comnbination
of OS + Chef (+ VBox Guestadditions btw) version.

Whats your appoach to this?

Cheers,
Torben