feat: make Docker container port configurable via PORT env var

fix: preserve original filename when downloading processed files

nginx-ipv6.sh

@@ -9,6 +9,12 @@ entrypoint_log() {
     fi
 }
 
+PORT=${PORT:-8080}
+if [ "$PORT" != "8080" ]; then
+  entrypoint_log "Changing Nginx listen port to $PORT"
+  sed -i "s/listen 8080/listen $PORT/g; s/listen \[::\]:8080/listen [::]:$PORT/g" /etc/nginx/nginx.conf
+fi
+
 if [ "$DISABLE_IPV6" = "true" ]; then
   entrypoint_log "Disabling the Nginx IPv6 listener"
   sed -i '/^[[:space:]]*listen[[:space:]]*\[::\]:[0-9]*/s/^/#/' /etc/nginx/nginx.conf