allow limiting bandwidth usage on public ports inspred by gnosis pulling 500 MBit/s
This commit is contained in:
goldsquid
320
limit-bandwidth.sh
Executable file
320
limit-bandwidth.sh
Executable file
@@ -0,0 +1,320 @@
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#!/bin/bash
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# General script to limit bandwidth for all public ports in a Docker Compose file
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# Limits each port to specified bandwidth (default: 100 MBit/s)
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#
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# Usage:
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# ./limit-bandwidth.sh <compose-file> [start|stop|status] [--limit BANDWIDTH]
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# ./limit-bandwidth.sh rpc/gnosis/reth/gnosis-mainnet-reth-pruned-trace.yml start
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# ./limit-bandwidth.sh rpc/gnosis/reth/gnosis-mainnet-reth-pruned-trace.yml start --limit 20mbit
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#
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# Environment variable:
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# BANDWIDTH_LIMIT=20mbit ./limit-bandwidth.sh <compose-file> start
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#
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# For cronjob:
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# */5 * * * * /path/to/rpc/limit-bandwidth.sh /path/to/compose.yml start
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# */5 * * * * BANDWIDTH_LIMIT=20mbit /path/to/rpc/limit-bandwidth.sh /path/to/compose.yml start
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set -uo pipefail
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BASEPATH="$(cd "$(dirname "$0")" && pwd)"
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# Bandwidth limit (can be overridden via BANDWIDTH_LIMIT env var or --limit parameter)
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# Default: 100mbit
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BANDWIDTH_LIMIT="${BANDWIDTH_LIMIT:-100mbit}"
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BURST_MULTIPLIER="${BURST_MULTIPLIER:-0.1}" # Burst is 10% of limit by default
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LATENCY="50ms" # Latency for shaping
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# Colors for output
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RED='\033[0;31m'
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GREEN='\033[0;32m'
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YELLOW='\033[1;33m'
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BLUE='\033[0;34m'
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NC='\033[0m' # No Color
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# Check if running as root
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if [ "$EUID" -ne 0 ]; then
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echo -e "${RED}Error: This script must be run as root (use sudo)${NC}"
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exit 1
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fi
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# Check if required tools are installed
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if ! command -v tc >/dev/null 2>&1; then
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echo -e "${RED}Error: 'tc' command not found${NC}"
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echo "Please install iproute2:"
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echo " sudo apt-get update && sudo apt-get install -y iproute2"
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exit 1
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fi
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if ! command -v iptables >/dev/null 2>&1; then
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echo -e "${RED}Error: 'iptables' command not found${NC}"
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echo "Please install iptables:"
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echo " sudo apt-get update && sudo apt-get install -y iptables"
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exit 1
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fi
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# Parse arguments
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if [ $# -lt 1 ]; then
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echo "Usage: $0 <compose-file> [start|stop|status] [--limit BANDWIDTH]"
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echo ""
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echo "Options:"
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echo " --limit BANDWIDTH Set bandwidth limit (e.g., 20mbit, 100mbit)"
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echo " Can also use BANDWIDTH_LIMIT environment variable"
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echo ""
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echo "Examples:"
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echo " $0 rpc/gnosis/reth/gnosis-mainnet-reth-pruned-trace.yml start"
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echo " $0 rpc/gnosis/reth/gnosis-mainnet-reth-pruned-trace.yml start --limit 20mbit"
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echo " BANDWIDTH_LIMIT=20mbit $0 rpc/gnosis/reth/gnosis-mainnet-reth-pruned-trace.yml start"
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echo " $0 rpc/ethereum/geth/ethereum-mainnet-geth-pruned-pebble-path.yml status"
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exit 1
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fi
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COMPOSE_FILE="$1"
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ACTION=${2:-start}
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# Parse optional --limit parameter
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if [ "$ACTION" = "--limit" ] && [ $# -ge 3 ]; then
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BANDWIDTH_LIMIT="$3"
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ACTION=${4:-start}
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elif [ $# -ge 3 ] && [ "$2" = "--limit" ]; then
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BANDWIDTH_LIMIT="$3"
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ACTION=${4:-start}
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elif [ $# -ge 4 ] && [ "$3" = "--limit" ]; then
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BANDWIDTH_LIMIT="$4"
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elif [ "$ACTION" = "--limit" ]; then
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echo -e "${RED}Error: --limit requires a bandwidth value${NC}"
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echo "Example: $0 $COMPOSE_FILE start --limit 20mbit"
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exit 1
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fi
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# Resolve compose file path
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if [ ! -f "$COMPOSE_FILE" ]; then
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# Try relative to BASEPATH
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if [ -f "$BASEPATH/$COMPOSE_FILE" ]; then
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COMPOSE_FILE="$BASEPATH/$COMPOSE_FILE"
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else
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echo -e "${RED}Error: Compose file not found: $1${NC}"
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exit 1
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fi
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fi
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COMPOSE_FILE=$(realpath "$COMPOSE_FILE")
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COMPOSE_DIR=$(dirname "$COMPOSE_FILE")
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# Calculate burst from limit (10% of limit)
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# Extract number and unit from BANDWIDTH_LIMIT (e.g., "20mbit" -> "20" and "mbit")
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if [[ "$BANDWIDTH_LIMIT" =~ ^([0-9]+)([a-zA-Z]+)$ ]]; then
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LIMIT_NUM="${BASH_REMATCH[1]}"
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LIMIT_UNIT="${BASH_REMATCH[2]}"
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# Calculate 10% of limit (simple integer division for compatibility)
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BURST_NUM=$((LIMIT_NUM / 10))
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# Ensure minimum burst of 1
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if [ "$BURST_NUM" -lt 1 ]; then
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BURST_NUM=1
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fi
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BURST="${BURST_NUM}${LIMIT_UNIT}"
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else
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# Fallback: use 10% of limit as string manipulation
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BURST="${BANDWIDTH_LIMIT}"
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fi
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echo -e "${BLUE}Compose file: ${COMPOSE_FILE}${NC}"
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echo -e "${BLUE}Bandwidth limit: ${BANDWIDTH_LIMIT} per port${NC}"
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# Function to extract ports from YAML
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extract_ports() {
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local file="$1"
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# Extract ports in format "HOST:CONTAINER" or "HOST:CONTAINER/PROTO"
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# Look for lines after "ports:" that contain port mappings
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awk '
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/^[[:space:]]*ports:[[:space:]]*$/ { in_ports=1; next }
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/^[[:space:]]*-/ && in_ports {
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# Match patterns like "13516:13516" or "13516:13516/udp"
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if (match($0, /[0-9]+:[0-9]+/)) {
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port = substr($0, RSTART, RLENGTH)
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# Extract just the host port (first number)
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if (match(port, /^[0-9]+/)) {
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print substr(port, RSTART, RLENGTH)
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}
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}
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}
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/^[[:space:]]*[a-zA-Z]/ && in_ports { in_ports=0 }
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' "$file" | sort -u
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}
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# Function to find Docker bridge for compose project
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find_bridge() {
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local compose_dir="$1"
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local project_name=$(basename "$compose_dir" | tr '[:upper:]' '[:lower:]' | sed 's/[^a-z0-9]/-/g')
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# Try to find the network by checking running containers from this compose file
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local container_name=$(docker compose -f "$COMPOSE_FILE" ps --format json 2>/dev/null | \
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jq -r '.[0].Name' 2>/dev/null | head -1)
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if [ -n "$container_name" ] && [ "$container_name" != "null" ]; then
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# Get network from container
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local network=$(docker inspect "$container_name" --format '{{range $net, $conf := .NetworkSettings.Networks}}{{$net}}{{end}}' 2>/dev/null | head -1)
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if [ -n "$network" ]; then
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# Find bridge interface for this network
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local bridge=$(docker network inspect "$network" --format '{{range .IPAM.Config}}{{.Gateway}}{{end}}' 2>/dev/null)
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if [ -n "$bridge" ]; then
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# Find interface with this gateway IP
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local iface=$(ip route | grep "$bridge" | awk '{print $3}' | head -1)
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if [ -n "$iface" ]; then
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echo "$iface"
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return 0
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fi
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fi
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fi
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fi
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# Fallback: find Docker bridge interfaces
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local bridges=$(ip link show | grep -E "^[0-9]+: (br-|docker0)" | cut -d: -f2 | tr -d ' ' | head -1)
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if [ -n "$bridges" ]; then
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echo "$bridges"
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return 0
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fi
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# Last resort: use docker0
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if ip link show docker0 >/dev/null 2>&1; then
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echo "docker0"
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return 0
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fi
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echo "eth0" # Final fallback
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}
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# Extract ports from compose file
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PORTS_RAW=$(extract_ports "$COMPOSE_FILE")
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if [ -z "$PORTS_RAW" ]; then
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echo -e "${YELLOW}Warning: No public ports found in compose file${NC}"
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exit 0
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fi
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# Convert to array (simple approach)
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PORTS=()
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while IFS= read -r line; do
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[ -n "$line" ] && PORTS+=("$line")
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done <<< "$PORTS_RAW"
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if [ ${#PORTS[@]} -eq 0 ]; then
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echo -e "${YELLOW}Warning: No public ports found in compose file${NC}"
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exit 0
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fi
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echo -e "${GREEN}Found ${#PORTS[@]} public port(s): ${PORTS[*]}${NC}"
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# Find the bridge interface
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BRIDGE=$(find_bridge "$COMPOSE_DIR")
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echo -e "${BLUE}Using network interface: ${BRIDGE}${NC}"
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# Verify interface exists
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if ! ip link show "$BRIDGE" >/dev/null 2>&1; then
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echo -e "${RED}Error: Network interface '$BRIDGE' not found${NC}"
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exit 1
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fi
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case "$ACTION" in
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start)
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echo -e "${YELLOW}Setting up bandwidth limiting...${NC}"
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# Remove existing qdisc if any
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tc qdisc del dev "$BRIDGE" root 2>/dev/null || true
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# Create HTB (Hierarchical Token Bucket) qdisc
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tc qdisc add dev "$BRIDGE" root handle 1: htb default 30
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# Create root class with high bandwidth
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tc class add dev "$BRIDGE" parent 1: classid 1:1 htb rate 1000mbit
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# Create unlimited class for non-limited traffic
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tc class add dev "$BRIDGE" parent 1:1 classid 1:30 htb rate 1000mbit
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# Process each port
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PORT_ID=10
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for port in "${PORTS[@]}"; do
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echo -e "${BLUE} Limiting port ${port} to ${BANDWIDTH_LIMIT}...${NC}"
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# Create limited class for this port
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tc class add dev "$BRIDGE" parent 1:1 classid 1:${PORT_ID} htb rate ${BANDWIDTH_LIMIT} burst ${BURST} ceil ${BANDWIDTH_LIMIT}
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# Add filter to route marked packets to this class
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tc filter add dev "$BRIDGE" parent 1: protocol ip prio ${PORT_ID} handle ${PORT_ID} fw flowid 1:${PORT_ID}
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# Mark TCP traffic for this port
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iptables -t mangle -C OUTPUT -p tcp --sport ${port} -j MARK --set-mark ${PORT_ID} 2>/dev/null || \
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iptables -t mangle -A OUTPUT -p tcp --sport ${port} -j MARK --set-mark ${PORT_ID}
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iptables -t mangle -C OUTPUT -p tcp --dport ${port} -j MARK --set-mark ${PORT_ID} 2>/dev/null || \
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iptables -t mangle -A OUTPUT -p tcp --dport ${port} -j MARK --set-mark ${PORT_ID}
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# Mark UDP traffic for this port
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iptables -t mangle -C OUTPUT -p udp --sport ${port} -j MARK --set-mark ${PORT_ID} 2>/dev/null || \
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iptables -t mangle -A OUTPUT -p udp --sport ${port} -j MARK --set-mark ${PORT_ID}
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iptables -t mangle -C OUTPUT -p udp --dport ${port} -j MARK --set-mark ${PORT_ID} 2>/dev/null || \
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iptables -t mangle -A OUTPUT -p udp --dport ${port} -j MARK --set-mark ${PORT_ID}
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# Mark in FORWARD chain (container traffic)
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iptables -t mangle -C FORWARD -p tcp --sport ${port} -j MARK --set-mark ${PORT_ID} 2>/dev/null || \
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iptables -t mangle -A FORWARD -p tcp --sport ${port} -j MARK --set-mark ${PORT_ID}
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iptables -t mangle -C FORWARD -p tcp --dport ${port} -j MARK --set-mark ${PORT_ID} 2>/dev/null || \
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iptables -t mangle -A FORWARD -p tcp --dport ${port} -j MARK --set-mark ${PORT_ID}
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iptables -t mangle -C FORWARD -p udp --sport ${port} -j MARK --set-mark ${PORT_ID} 2>/dev/null || \
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iptables -t mangle -A FORWARD -p udp --sport ${port} -j MARK --set-mark ${PORT_ID}
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iptables -t mangle -C FORWARD -p udp --dport ${port} -j MARK --set-mark ${PORT_ID} 2>/dev/null || \
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iptables -t mangle -A FORWARD -p udp --dport ${port} -j MARK --set-mark ${PORT_ID}
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PORT_ID=$((PORT_ID + 1))
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done
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echo -e "${GREEN}✓ Bandwidth limiting configured!${NC}"
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echo -e "${GREEN}All ports are now limited to ${BANDWIDTH_LIMIT} each${NC}"
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;;
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stop)
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echo -e "${YELLOW}Removing bandwidth limiting...${NC}"
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# Remove iptables rules for each port
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PORT_ID=10
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for port in "${PORTS[@]}"; do
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echo -e "${BLUE} Removing limits for port ${port}...${NC}"
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iptables -t mangle -D OUTPUT -p tcp --sport ${port} -j MARK --set-mark ${PORT_ID} 2>/dev/null || true
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iptables -t mangle -D OUTPUT -p tcp --dport ${port} -j MARK --set-mark ${PORT_ID} 2>/dev/null || true
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iptables -t mangle -D OUTPUT -p udp --sport ${port} -j MARK --set-mark ${PORT_ID} 2>/dev/null || true
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iptables -t mangle -D OUTPUT -p udp --dport ${port} -j MARK --set-mark ${PORT_ID} 2>/dev/null || true
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iptables -t mangle -D FORWARD -p tcp --sport ${port} -j MARK --set-mark ${PORT_ID} 2>/dev/null || true
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iptables -t mangle -D FORWARD -p tcp --dport ${port} -j MARK --set-mark ${PORT_ID} 2>/dev/null || true
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iptables -t mangle -D FORWARD -p udp --sport ${port} -j MARK --set-mark ${PORT_ID} 2>/dev/null || true
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iptables -t mangle -D FORWARD -p udp --dport ${port} -j MARK --set-mark ${PORT_ID} 2>/dev/null || true
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PORT_ID=$((PORT_ID + 1))
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done
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# Remove tc qdisc
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tc qdisc del dev "$BRIDGE" root 2>/dev/null || true
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echo -e "${GREEN}✓ Bandwidth limiting removed${NC}"
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;;
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status)
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echo -e "${YELLOW}Current bandwidth limiting status:${NC}"
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echo ""
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echo -e "${BLUE}TC Qdisc on ${BRIDGE}:${NC}"
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tc qdisc show dev "$BRIDGE" 2>/dev/null || echo " No qdisc configured"
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echo ""
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echo -e "${BLUE}TC Classes:${NC}"
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tc class show dev "$BRIDGE" 2>/dev/null || echo " No classes configured"
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echo ""
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echo -e "${BLUE}Iptables rules (OUTPUT):${NC}"
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iptables -t mangle -L OUTPUT -n --line-numbers | grep -E "MARK|${PORTS[0]}" || echo " No rules found"
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echo ""
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echo -e "${BLUE}Iptables rules (FORWARD):${NC}"
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iptables -t mangle -L FORWARD -n --line-numbers | grep -E "MARK|${PORTS[0]}" || echo " No rules found"
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echo ""
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echo -e "${BLUE}Monitored ports: ${PORTS[*]}${NC}"
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;;
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|
*)
|
||||||
|
echo -e "${RED}Error: Invalid action '$ACTION'${NC}"
|
||||||
|
echo "Usage: $0 <compose-file> [start|stop|status]"
|
||||||
|
exit 1
|
||||||
|
;;
|
||||||
|
esac
|
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87
setup-bandwidth-limit-cron.sh
Executable file
87
setup-bandwidth-limit-cron.sh
Executable file
@@ -0,0 +1,87 @@
|
|||||||
|
#!/bin/bash
|
||||||
|
# Helper script to set up cronjob for bandwidth limiting
|
||||||
|
# This will add a cronjob entry to apply bandwidth limits every 5 minutes
|
||||||
|
#
|
||||||
|
# Usage: ./setup-bandwidth-limit-cron.sh <compose-file> [BANDWIDTH_LIMIT]
|
||||||
|
# Example: ./setup-bandwidth-limit-cron.sh rpc/gnosis/reth/gnosis-mainnet-reth-pruned-trace.yml
|
||||||
|
# Example: ./setup-bandwidth-limit-cron.sh rpc/gnosis/reth/gnosis-mainnet-reth-pruned-trace.yml 20mbit
|
||||||
|
|
||||||
|
set -euo pipefail
|
||||||
|
|
||||||
|
BASEPATH="$(cd "$(dirname "$0")" && pwd)"
|
||||||
|
SCRIPT_PATH="$BASEPATH/limit-bandwidth.sh"
|
||||||
|
|
||||||
|
if [ $# -lt 1 ]; then
|
||||||
|
echo "Usage: $0 <compose-file>"
|
||||||
|
echo ""
|
||||||
|
echo "This script sets up a cronjob to apply bandwidth limits every 5 minutes."
|
||||||
|
echo "The cronjob will run: $SCRIPT_PATH <compose-file> start"
|
||||||
|
echo ""
|
||||||
|
echo "Example:"
|
||||||
|
echo " $0 rpc/gnosis/reth/gnosis-mainnet-reth-pruned-trace.yml"
|
||||||
|
exit 1
|
||||||
|
fi
|
||||||
|
|
||||||
|
COMPOSE_FILE="$1"
|
||||||
|
BANDWIDTH_LIMIT="${2:-100mbit}" # Default to 100mbit if not specified
|
||||||
|
|
||||||
|
# Resolve compose file path
|
||||||
|
if [ ! -f "$COMPOSE_FILE" ]; then
|
||||||
|
if [ -f "$BASEPATH/$COMPOSE_FILE" ]; then
|
||||||
|
COMPOSE_FILE="$BASEPATH/$COMPOSE_FILE"
|
||||||
|
else
|
||||||
|
echo "Error: Compose file not found: $1"
|
||||||
|
exit 1
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
|
||||||
|
COMPOSE_FILE=$(realpath "$COMPOSE_FILE")
|
||||||
|
SCRIPT_PATH=$(realpath "$SCRIPT_PATH")
|
||||||
|
|
||||||
|
# Create cronjob entry with bandwidth limit
|
||||||
|
if [ "$BANDWIDTH_LIMIT" != "100mbit" ]; then
|
||||||
|
CRON_ENTRY="*/5 * * * * sudo BANDWIDTH_LIMIT=$BANDWIDTH_LIMIT $SCRIPT_PATH $COMPOSE_FILE start"
|
||||||
|
else
|
||||||
|
CRON_ENTRY="*/5 * * * * sudo $SCRIPT_PATH $COMPOSE_FILE start"
|
||||||
|
fi
|
||||||
|
|
||||||
|
echo "Setting up cronjob for bandwidth limiting..."
|
||||||
|
echo ""
|
||||||
|
echo "Compose file: $COMPOSE_FILE"
|
||||||
|
echo "Script: $SCRIPT_PATH"
|
||||||
|
echo "Bandwidth limit: $BANDWIDTH_LIMIT per port"
|
||||||
|
echo "Cron entry: $CRON_ENTRY"
|
||||||
|
echo ""
|
||||||
|
|
||||||
|
# Check if cronjob already exists
|
||||||
|
if crontab -l 2>/dev/null | grep -qF "$COMPOSE_FILE start"; then
|
||||||
|
echo "Warning: A cronjob for this compose file already exists."
|
||||||
|
echo ""
|
||||||
|
echo "Current crontab entries:"
|
||||||
|
crontab -l 2>/dev/null | grep "$COMPOSE_FILE" || true
|
||||||
|
echo ""
|
||||||
|
read -p "Do you want to replace it? (y/N) " -n 1 -r
|
||||||
|
echo
|
||||||
|
if [[ ! $REPLY =~ ^[Yy]$ ]]; then
|
||||||
|
echo "Cancelled."
|
||||||
|
exit 0
|
||||||
|
fi
|
||||||
|
|
||||||
|
# Remove existing entry
|
||||||
|
crontab -l 2>/dev/null | grep -vF "$COMPOSE_FILE start" | crontab -
|
||||||
|
fi
|
||||||
|
|
||||||
|
# Add new cronjob
|
||||||
|
(crontab -l 2>/dev/null; echo "$CRON_ENTRY") | crontab -
|
||||||
|
|
||||||
|
echo "✓ Cronjob added successfully!"
|
||||||
|
echo ""
|
||||||
|
echo "To view your crontab:"
|
||||||
|
echo " crontab -l"
|
||||||
|
echo ""
|
||||||
|
echo "To remove this cronjob:"
|
||||||
|
echo " crontab -e"
|
||||||
|
echo " (then delete the line containing: $COMPOSE_FILE start)"
|
||||||
|
echo ""
|
||||||
|
echo "To test the script manually:"
|
||||||
|
echo " sudo $SCRIPT_PATH $COMPOSE_FILE start"
|
||||||
Reference in New Issue
Block a user