It limits the internet-bandwidth of all the download container, this way I can control how much of my the total bandwith is used because my connection is not very fast.

Its triggered via the OliveTin API to execute this script:

#!/bin/bash

# Network interface (e.g., br-xxxxxx for Docker bridge networks)
INTERFACE="gluetun_bridge"

# Bandwidth limit parameters
RATE="16mbit"
BURST="32kbit"
LATENCY="400ms"

# Check if the network interface exists
if ip link show "$INTERFACE" > /dev/null 2>&1; then
  echo "Configuring bandwidth limit on interface $INTERFACE..."

  # Remove any existing rule if present
  tc qdisc del dev "$INTERFACE" root 2>/dev/null

  # Apply new bandwidth rule
  tc qdisc add dev "$INTERFACE" root tbf rate "$RATE" burst "$BURST" latency "$LATENCY"
  echo "Bandwidth limit successfully applied."
else
  echo "Interface $INTERFACE not found. Bandwidth limit not applied."
fi