Start the building with this command from the obs-build root directory:

BUILD_DIR=$PWD BUILD_ROOT=/tmp/build/ ./build --cachedir=/tmp/build/cache obs_example/Dockerfile


Run the parser with an one liner (against the obs_example/Dockerfile):

perl -e "use Cwd 'abs_path'; use lib abs_path('Build'); use Build::Docker; Build::Docker::parse('', abs_path('obs_example/Dockerfile'))"