docker info | grep -i 'registry\|mirror'

sudo tee /etc/docker/daemon.json <<EOF
  {
    "registry-mirrors": [
      "https://i6hpwuyi.mirror.aliyuncs.com/",  # 当前阿里云源
      "https://docker.xuanyuan.me",             # 轩辕镜像免费版（多节点支持）
      "https://docker.1ms.run",                 # 1ms社区源（分钟级同步）
      "https://hub-mirror.c.163.com"            # 网易云镜像
    ]
  }
  EOF
  
  ## 重启 Docker
  sudo systemctl daemon-reload
  sudo systemctl restart docker

# 测速脚本（对比各源响应速度）
  #!/bin/bash
  MIRRORS=(
    "https://i6hpwuyi.mirror.aliyuncs.com"
    "https://docker.xuanyuan.me"
    "https://docker.1ms.run"
    "https://hub-mirror.c.163.com"
  )
  
  for mirror in "${MIRRORS[@]}"; do
    echo "Testing $mirror:"
    time curl -s -w "%{time_total}\n" -o /dev/null "$mirror/v2/"
  done