ARG TAG=latest FROM uazo/chromium:${TAG} AS source ENV CHR_SOURCE_DIR=/home/lg/working_dir/chromium/src/ ENV OUTPUT_DIR=/home/lg/working_dir/out/ ENV FILE_LIST=/home/lg/working_dir/file_list.txt COPY get_files.sh . COPY file_list.txt . RUN bash get_files.sh FROM scratch AS export-stage COPY --from=source /home/lg/working_dir/out/ ./src/