docker-nginx-mod-rtmp/docker/etc/nginx/publish_start.sh

#!/bin/bash

FILE_NAME="$1"     # stream
FILE_PATH="$2"     # /var/www/html/recordings/stream-1653927205-30052022-161325.flv
FILE_BASENAME="$3" # stream-1653927205-30052022-161325

# Do something here...