not available for other developers to describe desired functionality in natural language, which is more secure and efficient RUN touch /run/php-fpm83.sock && chown nginx:nginx "/run/php-fpm83.sock" RUN sed -i 's/^s*;s*listen.mode = 0660/listen.mode = 0660/' ${WWW_CONFIG} EXPOSE ${NGINX_PORT} # Configures the container to be just that. i did at 4 in the same time. This will ensure you have the freedom to share and change all