feat(zram): 添加 zram 自动配置功能及 root 运行检查

1.sh

@@ -13,6 +13,11 @@ print_red() { echo -e "\033[31m\033[01m$1$2\033[0m"; }
 print_green() { echo -e "\033[32m\033[01m$1$2\033[0m"; }
 print_yellow() { echo -e "\033[33m\033[01m$1$2\033[0m"; }
 
+if [ "$EUID" -ne 0 ]; then
+  print_red "请使用 sudo 运行此脚本"
+  exit 1
+fi
+
 # 设置 bash 为默认 shell
 print_green "###################"
 print_green "##### shell ######"
@@ -253,10 +258,79 @@ start_watchtower() {
     containrrr/watchtower "${WATCHTOWER_ARGS[@]}" $WATCHTOWER_NAME
 }
 
+install_zram() {
+  print_green "###################"
+  print_green "###### zram #######"
+  print_green "###################"
+
+  if [ "$SYSTEM_TYPE" != "debian" ]; then
+    print_yellow "当前仅在 Debian 系统上配置 zram-tools，已跳过"
+    return 0
+  fi
+
+  if [ -f /.dockerenv ] || grep -qaE '(docker|containerd|kubepods|lxc)' /proc/1/cgroup 2>/dev/null; then
+    print_yellow "检测到容器环境，跳过 zram 配置"
+    return 0
+  fi
+
+  echo "正在准备 zram-tools..."
+  if dpkg -s zram-tools >/dev/null 2>&1; then
+    echo "zram-tools 已安装，跳过安装步骤"
+  else
+    apt update && apt install zram-tools -y
+  fi
+
+  if command -v modprobe >/dev/null 2>&1; then
+    if modprobe zram 2>/dev/null; then
+      echo "zram 内核模块已加载"
+    else
+      print_yellow "内核不支持 zram 模块，跳过 zram 配置"
+      return 0
+    fi
+  else
+    print_yellow "未找到 modprobe，继续尝试配置 zram-tools"
+  fi
+
+  local total_mem algo percent
+  total_mem=$(free -m | awk '/^Mem:/{print $2}')
+  echo "检测到总内存: ${total_mem}MB"
+
+  if [ "$total_mem" -le 2500 ]; then
+    percent="100"
+
+    if [ -r /sys/block/zram0/comp_algorithm ] && grep -qw zstd /sys/block/zram0/comp_algorithm; then
+      algo="zstd"
+      echo "策略：内存 <= 2G，使用 zstd 算法 (100% 占比)"
+    else
+      algo="lz4"
+      echo "策略：内存 <= 2G，但内核未报告 zstd 支持，回退到 lz4 (100% 占比)"
+    fi
+  else
+    algo="lz4"
+    percent="60"
+    echo "策略：内存 > 2G，使用 lz4 算法 (60% 占比)"
+  fi
+
+  cat <<EOF >/etc/default/zramswap
+# 自动生成的 zram 配置
+ALGO=$algo
+PERCENT=$percent
+PRIORITY=100
+EOF
+
+  systemctl restart zramswap
+
+  echo "---------------------------------------"
+  echo "zram 部署完成！当前状态："
+  zramctl || true
+  echo "---------------------------------------"
+}
+
 modify_authorized_keys
 bash_aliases
 install_docker
 start_watchtower
+install_zram
 sysctl_config
 
 # source <(curl -fsSL scripts.oo1.dev/nezha-v1.sh)