Vagrantfile to make setting up a headless Raspberry Pi a bit easier.
SSID=mywifi WPAPASSPHRASE=passphrase HOSTNAME=office \
IMG=2016-11-25-raspbian-jessie-lite.img vagrant up
Will create office-2016-11-25-raspbian-jessie-lite.img
which is set up to
connect to mywifi
on boot, with SSH enabled.