README.md

chmod +x docker-mirror-benchmark.sh

./docker-mirror-benchmark.sh \
  https://focker.ir \
  https://dockerhub.ir \
  https://mirror.gcr.mirrors.iranserver.com \
  https://docker.nikancloud.ir \
  https://docker-mirror.ir

docker-mirror-benchmark.sh

#!/usr/bin/env bash

# Docker Mirror Benchmark Script
# Author: Mr. Coder
# Description: Tests ping, HTTP latency and pull time for given Docker registry mirrors.

set -euo pipefail

IMAGE="alpine:latest"
TMP_DIR="$(mktemp -d)"
LOG_FILE="$TMP_DIR/benchmark_$(date +%s).log"

# Usage instructions
usage() {
  echo "Usage: $0 <mirror1> <mirror2> ..."
  echo "Example:"
  echo "  $0 https://focker.ir https://dockerhub.ir"
  exit 1
}

# Check required CLI tools
check_dependencies() {
  for cmd in curl docker ping; do
    if ! command -v "$cmd" &>/dev/null; then
      echo "❌ Required command '$cmd' not found. Please install it."
      exit 1
    fi
  done
}

# Extract hostname from URL
extract_hostname() {
  local url="$1"
  echo "$url" | awk -F/ '{print $3}'
}

# Ping host and return success/fail
ping_host() {
  local host="$1"
  if ping -c 1 -W 1 "$host" &>/dev/null; then
    echo "OK"
  else
    echo "FAIL"
  fi
}

# Measure HTTP latency via curl
measure_latency() {
  local mirror="$1"
  local url="${mirror%/}/v2/"
  curl -o /dev/null -s -w "%{time_starttransfer}" "$url" || echo "fail"
}

# Docker pull using registry mirror
pull_image() {
  local mirror="$1"
  local start end duration status

  start=$(date +%s)
  if docker pull --registry-mirror="$mirror" "$IMAGE" &> "$TMP_DIR/pull.log"; then
    end=$(date +%s)
    duration=$((end - start))
    echo "$duration OK"
  else
    echo "N/A FAIL"
  fi
}

# Benchmark single mirror
benchmark_mirror() {
  local mirror="$1"
  local host latency pull_result pull_time pull_status

  host="$(extract_hostname "$mirror")"
  echo "🌐 Testing mirror: $mirror (host: $host)"

  # Ping check
  if [ "$(ping_host "$host")" = "OK" ]; then
    echo "  ✅ Ping successful"

    latency=$(measure_latency "$mirror")
    read -r pull_time pull_status <<< "$(pull_image "$mirror")"
  else
    echo "  ❌ Ping failed. Skipping..."
    latency="N/A"
    pull_time="N/A"
    pull_status="UNREACHABLE"
  fi

  echo -e "$mirror\t$latency\t$pull_time\t$pull_status" >> "$LOG_FILE"
}

# Script entry point
main() {
  if [ "$#" -lt 1 ]; then
    usage
  fi

  check_dependencies

  echo -e "Mirror\tLatency(s)\tPullTime(s)\tStatus" > "$LOG_FILE"

  for mirror in "$@"; do
    benchmark_mirror "$mirror"
  done

  echo ""
  echo "📄 Benchmark results:"
  column -t -s $'\t' "$LOG_FILE"
  echo -e "\n✅ Finished. Full log: $LOG_FILE"
}

main "$@"