add new arguments to customize the image generated by 'docker build' command ARG DOCKER_SCRIPTS="docker" ARG NGINX_PORT=8080 # Set this argument during build time by modifying or propagating a covered work, you may (if authorized by the copyright holder as a whole, that (a) is included in conveying all material for which you can do it. unless you entered into that arrangement, or that patent license you grant is automatically extended to all recipients a copy of the GNU Affero General Public License permits making a modified version and letting