feat: add Docker deployment support

- Multi-stage Dockerfile (Node build + Go build + Alpine runtime)
- docker-compose.yml with named volume for data persistence
- In-container Nginx reverse proxy (static files + API)
- Entrypoint script for graceful process management
- .dockerignore for optimized build context
- Updated README (zh/en) with Docker quick start and deployment docs

Closes #14

.dockerignore

@@ -0,0 +1,26 @@
+# Dependencies
+web/node_modules/
+
+# Build artifacts
+server/bin/
+web/dist/
+
+# Data & logs
+data/
+*.db
+*.log
+
+# IDE & OS
+.idea/
+.vscode/
+*.swp
+*.swo
+.DS_Store
+
+# Git
+.git/
+.github/
+
+# Docker
+Dockerfile
+docker-compose*.yml

Dockerfile

@@ -0,0 +1,62 @@
+# ---- Stage 1: Build frontend ----
+FROM node:20-alpine AS web-builder
+
+WORKDIR /build/web
+COPY web/package.json web/package-lock.json ./
+RUN npm ci
+COPY web/ ./
+RUN npm run build
+
+
+# ---- Stage 2: Build backend ----
+FROM golang:1.25-alpine AS server-builder
+
+WORKDIR /build/server
+COPY server/go.mod server/go.sum ./
+RUN go mod download
+COPY server/ ./
+RUN go build -trimpath -ldflags="-s -w" -o backupx ./cmd/backupx
+
+
+# ---- Stage 3: Production image ----
+FROM alpine:3.21
+
+RUN apk add --no-cache \
+    nginx \
+    tzdata \
+    ca-certificates \
+    # Required by mysql/postgresql backup tasks
+    mysql-client \
+    postgresql16-client \
+    && rm -rf /var/cache/apk/*
+
+# Create app user
+RUN addgroup -S backupx && adduser -S -G backupx -h /app backupx
+
+# Copy backend binary
+COPY --from=server-builder /build/server/backupx /app/bin/backupx
+
+# Copy frontend static files
+COPY --from=web-builder /build/web/dist /app/web
+
+# Copy nginx config
+COPY deploy/docker/nginx.conf /etc/nginx/http.d/default.conf
+
+# Copy entrypoint
+COPY deploy/docker/entrypoint.sh /app/entrypoint.sh
+RUN chmod +x /app/entrypoint.sh
+
+# Create data directories
+RUN mkdir -p /app/data /tmp/backupx && \
+    chown -R backupx:backupx /app /tmp/backupx
+
+# Nginx needs to write to these dirs
+RUN mkdir -p /var/lib/nginx/tmp /var/log/nginx && \
+    chown -R backupx:backupx /var/lib/nginx /var/log/nginx /run/nginx
+
+WORKDIR /app
+EXPOSE 8340
+
+VOLUME ["/app/data"]
+
+ENTRYPOINT ["/app/entrypoint.sh"]

README.md

@@ -112,10 +112,30 @@ BackupX 是一个面向 **Linux / macOS 服务器**的自托管备份管理平
 ### 🌐 其他
 - 中英文国际化 (i18n)
 - 零外部依赖（内嵌 SQLite，单二进制部署）
+- Docker / Docker Compose 一键部署
 - systemd 服务支持
 
 ## Quick Start
 
+### Docker 部署 (推荐)
+
+```bash
+# 克隆项目
+git clone https://github.com/Awuqing/BackupX.git
+cd BackupX
+
+# 一键启动
+docker compose up -d
+```
+
+如需备份宿主机上的目录，在 `docker-compose.yml` 中挂载对应路径：
+
+```yaml
+volumes:
+  - backupx-data:/app/data
+  - /path/to/backup/source:/mnt/source:ro
+```
+
 ### 从源码构建
 
 ```bash
@@ -302,11 +322,16 @@ BackupX/
 ├── deploy/                        # 部署配置
 │   ├── nginx.conf                 #   Nginx 参考配置
 │   ├── backupx.service            #   systemd 服务单元
-│   └── install.sh                 #   一键安装脚本
+│   ├── install.sh                 #   一键安装脚本
+│   └── docker/                    #   Docker 部署配置
+│       ├── nginx.conf             #     容器内 Nginx 配置
+│       └── entrypoint.sh          #     容器启动脚本
 ├── .github/                       # GitHub 配置
 │   ├── workflows/ci.yml           #   CI 工作流
 │   ├── workflows/release.yml      #   Release 工作流
 │   └── ISSUE_TEMPLATE/            #   Issue 模板
+├── Dockerfile                     # Docker 多阶段构建
+├── docker-compose.yml             # Docker Compose 配置
 └── Makefile                       # 构建命令
 ```
 
@@ -371,6 +396,29 @@ sudo ./deploy/install.sh
 5. 注册并启动 systemd 服务
 6. 配置 Nginx 反向代理（如已安装）
 
+### Docker 部署
+
+```bash
+# 使用 docker compose
+docker compose up -d
+
+# 或手动构建镜像
+docker build -t backupx .
+docker run -d --name backupx -p 8340:8340 -v backupx-data:/app/data backupx
+```
+
+通过环境变量覆盖配置：
+
+```bash
+docker run -d --name backupx \
+  -p 8340:8340 \
+  -v backupx-data:/app/data \
+  -e TZ=Asia/Shanghai \
+  -e BACKUPX_LOG_LEVEL=debug \
+  -e BACKUPX_BACKUP_MAX_CONCURRENT=4 \
+  backupx
+```
+
 ### 手动部署
 
 ```bash

README_EN.md

@@ -112,10 +112,30 @@ Supports **multi-node cluster management** for unified control of backup tasks a
 ### 🌐 Other
 - Chinese & English i18n
 - Zero external dependencies (embedded SQLite, single binary deployment)
+- Docker / Docker Compose one-click deployment
 - systemd service support
 
 ## Quick Start
 
+### Docker Deployment (Recommended)
+
+```bash
+# Clone the project
+git clone https://github.com/Awuqing/BackupX.git
+cd BackupX
+
+# Start with one command
+docker compose up -d
+```
+
+To back up host directories, mount them in `docker-compose.yml`:
+
+```yaml
+volumes:
+  - backupx-data:/app/data
+  - /path/to/backup/source:/mnt/source:ro
+```
+
 ### Build from Source
 
 ```bash
@@ -303,11 +323,16 @@ BackupX/
 ├── deploy/                        # Deployment configs
 │   ├── nginx.conf                 #   Nginx reference config
 │   ├── backupx.service            #   systemd service unit
-│   └── install.sh                 #   One-click install script
+│   ├── install.sh                 #   One-click install script
+│   └── docker/                    #   Docker deployment configs
+│       ├── nginx.conf             #     In-container Nginx config
+│       └── entrypoint.sh          #     Container entrypoint script
 ├── .github/                       # GitHub configuration
 │   ├── workflows/ci.yml           #   CI workflow
 │   ├── workflows/release.yml      #   Release workflow
 │   └── ISSUE_TEMPLATE/            #   Issue templates
+├── Dockerfile                     # Docker multi-stage build
+├── docker-compose.yml             # Docker Compose config
 └── Makefile                       # Build commands
 ```
 
@@ -372,6 +397,29 @@ The install script will automatically:
 5. Register and start the systemd service
 6. Configure Nginx reverse proxy (if installed)
 
+### Docker Deployment
+
+```bash
+# Using docker compose
+docker compose up -d
+
+# Or build and run manually
+docker build -t backupx .
+docker run -d --name backupx -p 8340:8340 -v backupx-data:/app/data backupx
+```
+
+Override configuration via environment variables:
+
+```bash
+docker run -d --name backupx \
+  -p 8340:8340 \
+  -v backupx-data:/app/data \
+  -e TZ=Asia/Shanghai \
+  -e BACKUPX_LOG_LEVEL=debug \
+  -e BACKUPX_BACKUP_MAX_CONCURRENT=4 \
+  backupx
+```
+
 ### Manual Deployment
 
 ```bash

deploy/docker/entrypoint.sh

@@ -0,0 +1,23 @@
+#!/bin/sh
+set -e
+
+# Backend listens on internal port 8341, Nginx exposes 8340
+export BACKUPX_SERVER_PORT="${BACKUPX_SERVER_PORT_INTERNAL:-8341}"
+
+# Start Nginx in background
+nginx -g "daemon off;" &
+NGINX_PID=$!
+
+# Start BackupX backend
+/app/bin/backupx &
+APP_PID=$!
+
+# Trap signals for graceful shutdown
+trap 'kill $APP_PID $NGINX_PID 2>/dev/null; wait $APP_PID $NGINX_PID 2>/dev/null' SIGTERM SIGINT
+
+echo "BackupX started — Nginx :8340 -> Backend :8341"
+
+# Wait for either process to exit
+wait -n $APP_PID $NGINX_PID 2>/dev/null || true
+kill $APP_PID $NGINX_PID 2>/dev/null || true
+wait $APP_PID $NGINX_PID 2>/dev/null || true

deploy/docker/nginx.conf

@@ -0,0 +1,32 @@
+server {
+    listen 8340;
+    server_name _;
+
+    root /app/web;
+    index index.html;
+
+    # API reverse proxy to backend
+    location /api/ {
+        proxy_pass http://127.0.0.1:8341/api/;
+        proxy_http_version 1.1;
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+        proxy_set_header Connection "";
+        proxy_buffering off;
+        proxy_cache off;
+        proxy_read_timeout 3600s;
+    }
+
+    # SPA fallback
+    location / {
+        try_files $uri $uri/ /index.html;
+    }
+
+    # Static assets cache
+    location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff2?)$ {
+        expires 30d;
+        add_header Cache-Control "public, immutable";
+    }
+}

docker-compose.yml

@@ -0,0 +1,21 @@
+services:
+  backupx:
+    build: .
+    image: backupx:latest
+    container_name: backupx
+    restart: unless-stopped
+    ports:
+      - "8340:8340"
+    volumes:
+      - backupx-data:/app/data
+      # Mount host directories that need to be backed up (example):
+      # - /path/to/backup/source:/mnt/source:ro
+    environment:
+      - TZ=Asia/Shanghai
+      # Override any config via BACKUPX_ prefixed env vars:
+      # - BACKUPX_SERVER_PORT=8340
+      # - BACKUPX_LOG_LEVEL=info
+      # - BACKUPX_BACKUP_MAX_CONCURRENT=2
+
+volumes:
+  backupx-data: