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| #!/usr/bin/env bash | |
| # ========================================================== | |
| # All-in-One: Docker + docker-compose-plugin + 16 GB swap | |
| # Tested on Ubuntu 20.04/22.04/24.04 (x86_64 & arm64) | |
| # 1) 安装官方最新 Docker & Compose | |
| # 2) 创建 16 GB /swapfile 并开机自启 | |
| # 全程无交互，失败即退出 | |
| # ========================================================== | |
| set -euo pipefail | |
| # ---- 0. prepeare root check -------------------------------- | |
| [ "$EUID" -ne 0 ] && exec sudo bash "$0" "$@" | |
| # ---- 1. env ------------------------------------------ | |
| SWAP_SIZE_MB=16384 # 16 GB | |
| SWAPFILE="/swapfile" | |
| DOCKER_CHANNEL="stable" | |
| # ---- 2. clean old Docker / swap ------------------------------ | |
| echo "==> clean old Docker & swap" | |
| systemctl stop docker docker.socket containerd 2>/dev/null || true | |
| apt-get remove -y docker docker-engine docker.io containerd runc 2>/dev/null || true | |
| swapoff "$SWAPFILE" 2>/dev/null || true | |
| rm -f "$SWAPFILE" | |
| # ---- 3. upgrade system ------------------------------------------ | |
| apt-get update -qq && apt-get upgrade -y | |
| # ---- 4. install depends ------------------------------------------ | |
| apt-get install -y \ | |
| ca-certificates curl gnupg lsb-release coreutils | |
| # ---- 5. add Docker offical repo ------------------------------ | |
| install -m 0755 -d /etc/apt/keyrings | |
| curl -fsSL https://download.docker.com/linux/ubuntu/gpg | \ | |
| gpg --dearmor -o /etc/apt/keyrings/docker.gpg | |
| echo \ | |
| "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] \ | |
| https://download.docker.com/linux/ubuntu \ | |
| $(lsb_release -cs) $DOCKER_CHANNEL" \ | |
| > /etc/apt/sources.list.d/docker.list | |
| # ---- 6. 安装 Docker + Compose 插件 ------------------------ | |
| apt-get update -qq | |
| apt-get install -y docker-ce docker-ce-cli containerd.io docker-compose-plugin | |
| # ---- 7. 把当前用户加入 docker 组 --------------------------- | |
| # （如以 root 运行脚本，$SUDO_USER 为空则跳过） | |
| if [ -n "${SUDO_USER:-}" ]; then | |
| usermod -aG docker "$SUDO_USER" | |
| fi | |
| # ---- 8. 创建 16 GB swap-file ------------------------------ | |
| echo "==> 创建 $((SWAP_SIZE_MB/1024)) GB swap-file" | |
| dd if=/dev/zero of="$SWAPFILE" bs=1M count=$SWAP_SIZE_MB status=progress | |
| chmod 600 "$SWAPFILE" | |
| mkswap "$SWAPFILE" | |
| swapon "$SWAPFILE" | |
| # ---- 9. 开机自动挂载 --------------------------------------- | |
| # 先删除旧行（如果有） | |
| sed -i "\|^$SWAPFILE|d" /etc/fstab | |
| echo "$SWAPFILE none swap sw 0 0" >> /etc/fstab | |
| # ---- 10. 验证结果 ------------------------------------------ | |
| echo "==> check Docker" | |
| docker --version | |
| docker compose version | |
| echo "==> check swap" | |
| swapon --show | |
| free -h | grep -i swap | |
| echo | |
| echo "✅ All complete！Docker & 16 GB swap ready to use." | |
| echo " 如以普通用户身份运行脚本，请重新登录或执行 newgrp docker 免 sudo 使用 docker。" |
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