It turns out, there is a 4th I in that varaible name. Change-Id: I6a0aa011604fb5b46cf5352e6c69461a2494d5fd
Create a minimal image based on Ubuntu. We default to trusty but DIB_RELEASE is mapped to any series of Ubuntu.
If necessary, a custom apt keyring and debootstrap script can be
supplied to the debootstrap command via DIB_DEBIAN_KEYRING and
DIB_DEBIAN_DEBOOTSTRAP_SCRIPT respectively. Both options require the
use of absolute rather than relative paths.
Use of this element will also require the tool 'debootstrap' to be available on your system. It should be available on Ubuntu, Debian, and Fedora.
The DIB_OFFLINE or more specific DIB_DEBIAN_USE_DEBOOTSTRAP_CACHE
variables can be set to prefer the use of a pre-cached root filesystem
tarball.
The DIB_DEBOOTSTRAP_EXTRA_ARGS environment variable may be used to
pass extra arguments to the debootstrap command used to create the
base filesystem image. If --keyring is is used in DIB_DEBOOTSTRAP_EXTRA_ARGS,
it will override DIB_DEBIAN_KEYRING if that is used as well.