feat: add Docker support for containerized deployment
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README_DOCKER.md
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README_DOCKER.md
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# Docker 部署指南
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本文档说明如何使用Docker部署个性化饮食推荐助手Web应用。
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## 📋 前置要求
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- Docker Engine 20.10+
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- Docker Compose 2.0+
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## 🚀 快速开始
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### 方式一:使用 Docker Compose(推荐)
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#### 生产环境
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```bash
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# 构建并启动容器
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docker-compose up -d
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# 查看日志
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docker-compose logs -f
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# 停止容器
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docker-compose down
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```
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#### 开发环境(支持代码热重载)
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```bash
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# 使用开发配置启动
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docker-compose -f docker-compose.dev.yml up -d
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# 查看日志
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docker-compose -f docker-compose.dev.yml logs -f
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# 停止容器
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docker-compose -f docker-compose.dev.yml down
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```
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### 方式二:使用 Docker 命令
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```bash
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# 构建镜像
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docker build -t diet-recommendation-app .
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# 运行容器
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docker run -d \
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--name diet_recommendation_app \
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-p 5000:5000 \
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-v $(pwd)/data:/app/data \
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-v $(pwd)/logs:/app/logs \
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-v $(pwd)/models:/app/models \
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diet-recommendation-app
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# 查看日志
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docker logs -f diet_recommendation_app
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# 停止容器
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docker stop diet_recommendation_app
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docker rm diet_recommendation_app
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```
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## 🌐 访问应用
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容器启动后,访问:
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- **主页**: http://localhost:5000
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- **背诵排序**: http://localhost:5000/recitation
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- **数据采集**: http://localhost:5000/data-collection
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- **智能推荐**: http://localhost:5000/recommendation
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- **营养分析**: http://localhost:5000/analysis
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- **健康检查**: http://localhost:5000/health
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## 📁 数据持久化
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以下目录会自动挂载到容器中,确保数据不丢失:
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- `./data` - 用户数据和数据库
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- `./logs` - 日志文件
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- `./models` - 训练好的模型文件
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## 🔧 配置说明
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### 环境变量
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可以通过 `docker-compose.yml` 中的 `environment` 部分或 `.env` 文件配置:
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```yaml
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environment:
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- FLASK_ENV=production
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- QWEN_API_KEY=your_api_key_here
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```
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### 端口配置
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默认端口为 `5000`,如需修改:
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```yaml
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ports:
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- "8080:5000" # 将主机的8080端口映射到容器的5000端口
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```
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## 🐛 故障排除
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### 查看容器日志
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```bash
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# Docker Compose
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docker-compose logs -f web
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# Docker
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docker logs -f diet_recommendation_app
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```
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### 进入容器调试
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```bash
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# Docker Compose
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docker-compose exec web bash
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# Docker
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docker exec -it diet_recommendation_app bash
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```
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### 重启容器
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```bash
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# Docker Compose
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docker-compose restart
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# Docker
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docker restart diet_recommendation_app
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```
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### 重新构建镜像
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```bash
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# Docker Compose
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docker-compose build --no-cache
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# Docker
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docker build --no-cache -t diet-recommendation-app .
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```
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## 📊 健康检查
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容器包含健康检查功能,可以通过以下方式查看状态:
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```bash
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# Docker Compose
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docker-compose ps
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# Docker
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docker ps
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```
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健康检查端点:`http://localhost:5000/health`
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## 🔒 安全建议
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1. **生产环境**:
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- 使用反向代理(Nginx/Traefik)
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- 配置HTTPS
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- 限制端口访问
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- 使用环境变量管理敏感信息
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2. **数据备份**:
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- 定期备份 `data` 目录
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- 备份 `models` 目录中的模型文件
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## 🚢 生产部署示例
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### 使用 Nginx 作为反向代理
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```nginx
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server {
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listen 80;
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server_name your-domain.com;
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location / {
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proxy_pass http://localhost:5000;
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proxy_set_header Host $host;
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proxy_set_header X-Real-IP $remote_addr;
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proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
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proxy_set_header X-Forwarded-Proto $scheme;
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}
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}
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```
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## 📝 注意事项
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1. **OCR功能**:Docker镜像已包含Tesseract OCR支持
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2. **内存限制**:建议至少分配1GB内存给容器
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3. **文件权限**:确保挂载的目录有适当的读写权限
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4. **时区设置**:如需修改时区,在Dockerfile中添加:
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```dockerfile
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ENV TZ=Asia/Shanghai
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RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
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```
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## 🔄 更新应用
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```bash
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# 停止容器
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docker-compose down
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# 拉取最新代码
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git pull
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# 重新构建并启动
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docker-compose build --no-cache
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docker-compose up -d
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```
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