cn.ubuntu.source.sh

cn.ubuntu.source.sh

#!/bin/bash
# ========================================================
# 国内 Ubuntu 镜像源一键配置（无需注册版）
# 功能：更换 APT、Docker、pip 为国内高速源
# 特点：所有源均无需注册账号（使用中科大、网易、阿里云公共镜像）
# 支持：Ubuntu 20.04/22.04/24.04
# ========================================================

set -e  # 出错退出

echo "🚀 开始配置国内镜像源（无需注册版本）..."

# ========================
# 1. 检查是否为 root
# ========================
if [ "$(id -u)" -ne 0 ]; then
    echo "❌ 请以 root 权限运行此脚本！"
    echo "建议：sudo bash $0"
    exit 1
fi

# ========================
# 2. 获取 Ubuntu 版本代号（如 jammy, focal）
# ========================
if ! command -v lsb_release &> /dev/null; then
    echo "⚠️ lsb_release 未安装，正在安装..."
    apt-get update && apt-get install -y lsb-release
fi

UBUNTU_CODENAME=$(lsb_release -cs)
echo "📦 检测到系统版本代号: $UBUNTU_CODENAME"

# 支持的版本检查
case "$UBUNTU_CODENAME" in
    focal|jammy|noble|bionic)
        echo "✅ 支持的 Ubuntu 版本"
        ;;
    *)
        echo "❌ 当前版本 $UBUNTU_CODENAME 可能不受支持，继续尝试..."
        ;;
esac

# ========================
# 3. 备份并更换 APT 源为阿里云
# ========================
echo "🔁 配置 APT 源为阿里云..."

APT_LIST="/etc/apt/sources.list"
APT_BAK="$APT_LIST.bak.$(date +%Y%m%d%H%M%S)"

# 备份原文件
if [ ! -f "$APT_BAK" ]; then
    cp "$APT_LIST" "$APT_BAK"
    echo "✅ 已备份原 sources.list 到 $APT_BAK"
fi

# 写入阿里云源
cat > "$APT_LIST" << EOF
# 阿里云镜像源
deb https://mirrors.aliyun.com/ubuntu/ $UBUNTU_CODENAME main restricted universe multiverse
deb https://mirrors.aliyun.com/ubuntu/ $UBUNTU_CODENAME-security main restricted universe multiverse
deb https://mirrors.aliyun.com/ubuntu/ $UBUNTU_CODENAME-updates main restricted universe multiverse
deb https://mirrors.aliyun.com/ubuntu/ $UBUNTU_CODENAME-backports main restricted universe multiverse

# 源码（可选）
deb-src https://mirrors.aliyun.com/ubuntu/ $UBUNTU_CODENAME main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ $UBUNTU_CODENAME-security main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ $UBUNTU_CODENAME-updates main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ $UBUNTU_CODENAME-backports main restricted universe multiverse
EOF

echo "✅ APT 源已更换为阿里云"

# 更新 apt 缓存
apt-get update && echo "🔄 APT 软件包列表已更新" || {
    echo "⚠️ APT 更新失败，请检查网络"
    exit 1
}

# ========================
# 4. 配置 Docker 镜像加速（无需注册：中科大 + 网易）
# ========================
echo "🐳 配置 Docker 镜像加速器（中科大 + 网易，无需注册）..."

DOCKER_DIR="/etc/docker"
DAEMON_JSON="$DOCKER_DIR/daemon.json"

mkdir -p "$DOCKER_DIR"

# 备份旧配置（如有）
if [ -f "$DAEMON_JSON" ]; then
    cp "$DAEMON_JSON" "$DAEMON_JSON.bak"
    echo "✅ 已备份旧 Docker 配置到 $DAEMON_JSON.bak"
fi

# 使用无需注册的公共镜像加速器
cat > "$DAEMON_JSON" << 'EOF'
{
  "registry-mirrors": [
    "https://docker.mirrors.ustc.edu.cn",
    "https://hub-mirror.c.163.com"
  ],
  "insecure-registries": [],
  "debug": false
}
EOF

echo "✅ Docker 镜像加速已配置：中科大 + 网易"

# 检查 Docker 是否安装并重启
if command -v docker &> /dev/null; then
    systemctl daemon-reload
    systemctl restart docker && echo "🔄 Docker 服务已重启并应用配置"
else
    echo "💡 Docker 未安装，配置已写入 $DAEMON_JSON"
    echo "📌 后续安装 Docker 后将自动使用加速器"
    echo "   安装命令参考：https://docs.docker.com/engine/install/ubuntu/"
fi

# ========================
# 5. 配置 pip 使用阿里云源
# ========================
echo "📦 配置 pip 源为阿里云..."

PIPPATH_ROOT="/root/.pip"
PIPCONF_ROOT="$PIPPATH_ROOT/pip.conf"

mkdir -p "$PIPPATH_ROOT"

cat > "$PIPCONF_ROOT" << 'EOF'
[global]
index-url = https://mirrors.aliyun.com/pypi/simple/
trusted-host = mirrors.aliyun.com
timeout = 120
EOF

echo "✅ pip 配置完成：/root/.pip/pip.conf"

# 如果是通过 sudo 执行，也为普通用户配置
if [ -n "$SUDO_USER" ] && id "$SUDO_USER" &>/dev/null; then
    USER_HOME=$(eval echo ~$SUDO_USER)
    USER_PIP="$USER_HOME/.pip"
    USER_CONF="$USER_PIP/pip.conf"
    mkdir -p "$USER_PIP"
    cp "$PIPCONF_ROOT" "$USER_CONF"
    chown -R "$SUDO_USER:$SUDO_USER" "$USER_PIP"
    echo "✅ 已为用户 $SUDO_USER 配置 pip"
fi

# ========================
# 6. 完成提示
# ========================
echo ""
echo "🎉 所有镜像源配置完成！（无需注册）"
echo ""
echo "📌 当前配置："
echo "   - APT: 阿里云"
echo "   - Docker: 中科大 + 网易（无需注册）"
echo "   - pip: 阿里云"
echo ""
echo "✅ 建议测试："
echo "   apt install curl -y"
echo "   docker pull hello-world"
echo "   pip install requests"
echo ""
echo "💡 提示：若后续安装 Docker，请确保使用官方或云厂商推荐方式"
echo "🔚 脚本执行完毕！"