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#!/usr/bin/env bash
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#
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# mail_go 服务安装/管理脚本
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# 用法:
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# sudo ./install.sh install — 安装/更新服务
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# sudo ./install.sh uninstall — 卸载服务
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# sudo ./install.sh start — 启动服务
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# sudo ./install.sh stop — 停止服务
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# sudo ./install.sh restart — 重启服务
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# sudo ./install.sh status — 查看服务状态
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#
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source /etc/profile
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source ~/.bashrc
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set -euo pipefail
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# ======================== 配置区 ========================
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SERVICE_NAME="mail_go"
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SERVICE_USER="mail_go"
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SERVICE_DESC="MailGo - Go 邮件系统（SMTP/IMAP/POP3 + Web）"
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# 目录
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INSTALL_DIR="/opt/mail_go" # 程序安装目录
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DATA_DIR="/srv/mail_go" # 数据目录（数据库+附件）
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CONFIG_DIR="/etc/mail_go" # 配置文件目录
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LOG_DIR="/var/log/mail_go" # 日志目录
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PID_DIR="/run/mail_go" # PID/Socket 目录
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# Git 仓库
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GIT_REPO="https://git.lmve.net/kevin/mailgo.git"
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GIT_BRANCH="main"
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# 编译临时目录
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BUILD_DIR="/tmp/mail_go_build"
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# systemd 服务文件路径
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SERVICE_FILE="/etc/systemd/system/${SERVICE_NAME}.service"
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# ======================== 颜色输出 ========================
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RED='\033[0;31m'
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GREEN='\033[0;32m'
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YELLOW='\033[1;33m'
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BLUE='\033[0;34m'
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NC='\033[0m' # No Color
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info() { echo -e "${BLUE}[INFO]${NC} $*"; }
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ok() { echo -e "${GREEN}[OK]${NC} $*"; }
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warn() { echo -e "${YELLOW}[WARN]${NC} $*"; }
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error() { echo -e "${RED}[ERROR]${NC} $*"; exit 1; }
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# ======================== 前置检查 ========================
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check_root() {
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if [[ $EUID -ne 0 ]]; then
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error "此脚本需要 root 权限运行，请使用 sudo"
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fi
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}
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# ======================== 用户管理 ========================
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ensure_user() {
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if id "${SERVICE_USER}" &>/dev/null; then
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ok "用户 ${SERVICE_USER} 已存在"
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else
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info "创建系统用户 ${SERVICE_USER} ..."
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useradd -r -s /usr/sbin/nologin -d "${INSTALL_DIR}" -c "${SERVICE_DESC}" "${SERVICE_USER}"
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ok "用户 ${SERVICE_USER} 创建成功"
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fi
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}
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# ======================== 目录管理 ========================
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ensure_dirs() {
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info "检查并创建关键目录 ..."
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# 安装目录（含模板子目录结构）
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mkdir -p "${INSTALL_DIR}/internal/web/templates/admin"
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# 配置目录
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mkdir -p "${CONFIG_DIR}"
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# 数据目录及子目录
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mkdir -p "${DATA_DIR}/attachments"
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# 日志目录
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mkdir -p "${LOG_DIR}"
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# PID/Socket 目录
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mkdir -p "${PID_DIR}"
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# 设置所有权（每次安装都强制修正，避免旧版遗留权限问题）
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chown -R "${SERVICE_USER}:${SERVICE_USER}" "${INSTALL_DIR}"
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chown -R "${SERVICE_USER}:${SERVICE_USER}" "${DATA_DIR}"
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chown -R "${SERVICE_USER}:${SERVICE_USER}" "${LOG_DIR}"
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chown -R "${SERVICE_USER}:${SERVICE_USER}" "${PID_DIR}"
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chown -R "${SERVICE_USER}:${SERVICE_USER}" "${CONFIG_DIR}"
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# 确保目录可写
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chmod 755 "${CONFIG_DIR}" "${DATA_DIR}" "${LOG_DIR}" "${PID_DIR}" "${INSTALL_DIR}"
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ok "目录结构就绪"
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}
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# ======================== 编译 ========================
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build_binary() {
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info "拉取最新代码 ..."
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if [[ -d "${BUILD_DIR}/.git" ]]; then
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cd "${BUILD_DIR}"
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git fetch --all
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git reset --hard "origin/${GIT_BRANCH}"
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info "代码已更新到最新"
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else
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rm -rf "${BUILD_DIR}"
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git clone -b "${GIT_BRANCH}" "${GIT_REPO}" "${BUILD_DIR}"
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cd "${BUILD_DIR}"
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info "代码克隆完成"
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fi
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info "编译 Go 项目（CGO 已启用，SQLite 依赖） ..."
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CGO_ENABLED=1 go build -ldflags="-s -w" -o mail_go .
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ok "编译完成: ${BUILD_DIR}/mail_go"
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}
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# ======================== 部署文件 ========================
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deploy_files() {
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info "部署文件到 ${INSTALL_DIR} ..."
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# 停止服务（如果正在运行），避免替换正在使用的二进制
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if systemctl is-active --quiet "${SERVICE_NAME}" 2>/dev/null; then
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info "停止运行中的服务 ..."
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systemctl stop "${SERVICE_NAME}"
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fi
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# 复制二进制
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cp -f "${BUILD_DIR}/mail_go" "${INSTALL_DIR}/mail_go"
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chmod 755 "${INSTALL_DIR}/mail_go"
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# 复制模板文件（目录结构: internal/web/templates/*.html + admin/*.html）
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cp -f "${BUILD_DIR}/internal/web/templates/"*.html "${INSTALL_DIR}/internal/web/templates/"
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cp -f "${BUILD_DIR}/internal/web/templates/admin/"*.html "${INSTALL_DIR}/internal/web/templates/admin/"
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# 配置文件由程序首次启动时自动生成 + 缺失项自动补全，脚本不干预
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if [[ -f "${CONFIG_DIR}/mail_go.toml" ]]; then
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info "保留现有配置文件: ${CONFIG_DIR}/mail_go.toml"
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else
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info "配置文件不存在，程序首次启动将自动生成"
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fi
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# 设置安装目录所有权
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chown -R "${SERVICE_USER}:${SERVICE_USER}" "${INSTALL_DIR}"
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ok "文件部署完成"
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}
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# ======================== systemd 服务 ========================
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install_service() {
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info "创建 systemd 服务文件 ..."
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cat > "${SERVICE_FILE}" <<EOF
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[Unit]
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Description=${SERVICE_DESC}
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After=network.target
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Wants=network.target
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[Service]
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Type=simple
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User=${SERVICE_USER}
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Group=${SERVICE_USER}
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WorkingDirectory=${INSTALL_DIR}
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ExecStart=${INSTALL_DIR}/mail_go
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ExecReload=/bin/kill -HUP \$MAINPID
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Restart=on-failure
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RestartSec=5
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LimitNOFILE=65536
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# 日志输出到 journald
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StandardOutput=journal
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StandardError=journal
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SyslogIdentifier=${SERVICE_NAME}
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# 安全加固：专用低权用户运行，无需额外文件系统沙箱
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# ProtectSystem=strict/full 会阻止写入 /etc 和 /opt 等目录，
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# 导致配置文件和 unix socket 无法创建，得不偿失
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ProtectHome=true
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NoNewPrivileges=true
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# 环境变量
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Environment=GIN_MODE=release
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# MailGo 需要绑定 25/465/143/993/110/995 等特权端口
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# 取消限制，允许非 root 绑定低端口号（需内核支持）
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# 或使用: sysctl net.ipv4.ip_unprivileged_port_start=0
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AmbientCapabilities=CAP_NET_BIND_SERVICE
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[Install]
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WantedBy=multi-user.target
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EOF
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chmod 644 "${SERVICE_FILE}"
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systemctl daemon-reload
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ok "systemd 服务文件已创建"
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}
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# ======================== 安装主流程 ========================
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do_install() {
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info "========== 安装 ${SERVICE_NAME} =========="
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# 1. 检查依赖
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check_root
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command -v git &>/dev/null || error "需要 git，请先安装"
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command -v go &>/dev/null || error "需要 go，请先安装"
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command -v gcc &>/dev/null || error "需要 gcc（CGO/SQLite 编译依赖），请先安装"
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# 2. 创建用户
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ensure_user
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# 3. 创建目录
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ensure_dirs
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# 4. 拉取代码并编译
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build_binary
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# 5. 部署文件
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deploy_files
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# 6. 安装服务
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install_service
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# 7. 启动并设置开机自启
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info "启动服务 ..."
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systemctl start "${SERVICE_NAME}"
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systemctl enable "${SERVICE_NAME}"
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sleep 1
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if systemctl is-active --quiet "${SERVICE_NAME}"; then
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ok "服务启动成功！"
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else
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error "服务启动失败，请检查日志: journalctl -u ${SERVICE_NAME} -n 50"
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fi
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echo ""
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info "========== 安装完成 =========="
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echo " 程序目录: ${INSTALL_DIR}"
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echo " 配置文件: ${CONFIG_DIR}/mail_go.toml"
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echo " 数据目录: ${DATA_DIR}"
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echo " 附件目录: ${DATA_DIR}/attachments"
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echo " 日志目录: ${LOG_DIR}"
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echo " 服务管理: systemctl {start|stop|restart|status} ${SERVICE_NAME}"
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echo " 查看日志: journalctl -u ${SERVICE_NAME} -f"
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echo ""
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echo " 默认监听端口:"
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echo " SMTP 25 / 465(TLS) IMAP 143 / 993(TLS)"
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echo " POP3 110 / 995(TLS) Web :8080"
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echo ""
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echo " 默认管理员: admin@example.com / admin"
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warn "⚠ 请登录后立即修改默认密码！"
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}
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# ======================== 卸载 ========================
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do_uninstall() {
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info "========== 卸载 ${SERVICE_NAME} =========="
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check_root
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# 停止服务
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if systemctl is-active --quiet "${SERVICE_NAME}" 2>/dev/null; then
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systemctl stop "${SERVICE_NAME}"
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info "服务已停止"
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fi
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# 禁用开机自启
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if systemctl is-enabled --quiet "${SERVICE_NAME}" 2>/dev/null; then
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systemctl disable "${SERVICE_NAME}"
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info "已禁用开机自启"
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fi
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# 删除服务文件
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if [[ -f "${SERVICE_FILE}" ]]; then
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rm -f "${SERVICE_FILE}"
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systemctl daemon-reload
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info "服务文件已删除"
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fi
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# 询问是否删除数据
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echo ""
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warn "以下目录包含运行数据，是否删除？"
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echo " [1] ${INSTALL_DIR} (程序文件+模板)"
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echo " [2] ${DATA_DIR} (数据库+附件)"
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echo " [3] ${CONFIG_DIR} (配置文件)"
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echo " [4] ${LOG_DIR} (日志)"
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echo " [0] 全部保留（默认）"
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echo " [a] 全部删除"
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echo ""
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read -rp "请选择 [0/a/组合如 14]: " choice
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case "${choice:-0}" in
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0)
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info "保留所有数据目录"
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;;
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a|A)
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rm -rf "${INSTALL_DIR}" "${DATA_DIR}" "${CONFIG_DIR}" "${LOG_DIR}"
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info "所有数据目录已删除"
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;;
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*)
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[[ "${choice}" == *1* ]] && rm -rf "${INSTALL_DIR}" && info "已删除 ${INSTALL_DIR}"
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[[ "${choice}" == *2* ]] && rm -rf "${DATA_DIR}" && info "已删除 ${DATA_DIR}"
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[[ "${choice}" == *3* ]] && rm -rf "${CONFIG_DIR}" && info "已删除 ${CONFIG_DIR}"
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[[ "${choice}" == *4* ]] && rm -rf "${LOG_DIR}" && info "已删除 ${LOG_DIR}"
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;;
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esac
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# 删除用户（如果没有其他依赖）
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if id "${SERVICE_USER}" &>/dev/null; then
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read -rp "是否删除系统用户 ${SERVICE_USER}？[y/N]: " del_user
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if [[ "${del_user}" =~ ^[Yy]$ ]]; then
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userdel "${SERVICE_USER}"
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info "用户 ${SERVICE_USER} 已删除"
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fi
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fi
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# 清理编译目录
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rm -rf "${BUILD_DIR}"
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ok "卸载完成"
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}
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# ======================== 服务控制 ========================
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do_start() {
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check_root
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systemctl start "${SERVICE_NAME}"
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sleep 1
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if systemctl is-active --quiet "${SERVICE_NAME}"; then
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ok "服务已启动"
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else
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error "服务启动失败，查看日志: journalctl -u ${SERVICE_NAME} -n 50"
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fi
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}
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do_stop() {
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check_root
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systemctl stop "${SERVICE_NAME}"
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ok "服务已停止"
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}
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do_restart() {
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check_root
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systemctl restart "${SERVICE_NAME}"
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sleep 1
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if systemctl is-active --quiet "${SERVICE_NAME}"; then
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ok "服务已重启"
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else
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error "服务重启失败，查看日志: journalctl -u ${SERVICE_NAME} -n 50"
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fi
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}
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do_status() {
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systemctl status "${SERVICE_NAME}" --no-pager || true
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}
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# ======================== 入口 ========================
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case "${1:-}" in
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install) do_install ;;
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uninstall) do_uninstall ;;
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start) do_start ;;
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stop) do_stop ;;
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restart) do_restart ;;
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status) do_status ;;
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*)
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echo "用法: sudo $0 {install|uninstall|start|stop|restart|status}"
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echo ""
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echo " install — 完整安装/更新（拉代码+编译+部署+启动+开机自启）"
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echo " uninstall — 卸载服务（可选保留数据）"
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echo " start — 启动服务"
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echo " stop — 停止服务"
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echo " restart — 重启服务"
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echo " status — 查看服务状态"
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exit 1
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;;
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esac
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Reference in New Issue
Block a user