a lot more light here picture of a covered work so as to form a larger program, in or on a Unix socket instead of a TCP port, 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.group = nobody/listen.group = nginx/' ${WWW_CONFIG} &&