Run now takes a context as well as a statebag. We'll assign the context
to the blank identifier to prevent namespace collisions. We'll let the
step authors opt-in to using the context.
`find . -iname "step_*.go" -exec gsed -i'' 's/func \(.*\)Run(/func \1Run(_ context.Context, /' {} \;`
This provides an alternate mode for the amazon-chroot builder which uses
a blank volume to build the image. It adds StepPreMountCommands to
permit partitioning and format commands to be executed before mounting
the new volume.
Matthew Hooker
Jeremy Asher