[stephenr]

Most of those things can just be set in your global git config file, and surely you're using some kind of repeatable/automated setup for VMs.. I don't see why you'd ever need to be doing something other than "copy default git config file" in your Vagrantfile/etc

[markus_zhang]

That's a good idea. I use VirtualBox but I'm sure there is something similar I can do.

[stephenr]

The benefit of vagrant is it works with a wide variety of Hypervisors (including vbox) and strongly encourages a reproducible setup through defined provisioning steps.