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合并前后端成单一镜像#80

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jokyo02 wants to merge 4 commits intoAnionex:mainfrom
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合并前后端成单一镜像#80
jokyo02 wants to merge 4 commits intoAnionex:mainfrom
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@jokyo02 jokyo02 commented Dec 24, 2025

单一镜像端口修改成huggingface的7860,便于直接部署

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Summary of Changes

Hello @jokyo02, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

此拉取请求旨在通过将前端和后端服务整合到一个 Docker 镜像中,并调整端口配置以适应 Hugging Face 部署环境,从而优化应用程序的部署策略。核心改动包括引入一个多阶段构建的 Dockerfile 和一个自定义的 Python 启动脚本,以统一处理静态文件服务和 API 路由。

Highlights

  • 单一镜像构建: 引入了一个新的 Dockerfile.combined 文件,用于将前端和后端应用程序合并到一个单一的 Docker 镜像中,简化了部署流程。
  • 端口配置: 修改了应用程序的默认端口为 7860,以适应 Hugging Face 平台的部署要求,便于直接部署。
  • 新的启动脚本: 创建了一个名为 hf_runner.py 的 Python 脚本。此脚本负责启动 Flask 应用,处理静态文件服务,并管理单页应用 (SPA) 的路由,确保前端路由在后端正确回退到 index.html
  • 后端路由调整: 在 backend/app.py 中,将原有的根路由 (/) 更改为 /api/info。现在,根路由 (/) 由 hf_runner.py 接管,用于提供前端的 index.html
Ignored Files
  • Ignored by pattern: .github/workflows/** (1)
    • .github/workflows/docker-publish.yml
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Code Review

本次合并前后端为单一镜像的尝试是很好的方向,可以简化部署。新的 Dockerfile.combined 文件通过多阶段构建实现了这个目标。然而,当前的实现存在一些严重的安全和生产环境适用性问题,需要解决。主要问题包括不安全的文件权限、在生产镜像中使用了开发服务器,以及一个路径遍历漏洞。此外,在代码可维护性方面也有提升空间,例如将启动脚本外部化,以及使用更健壮的Python依赖管理方式。backend/app.py 中的路由修改对于这个新架构是合适的。

Comment on lines +77 to +85
if __name__ == '__main__':
with app.app_context():
try:
db.create_all()
print("Database initialized.")
except: pass

print("Server starting on port 7860...")
app.run(host='0.0.0.0', port=7860, threaded=True)
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critical

在生产环境的 Docker 镜像中,不应使用 Flask 内置的开发服务器 (app.run)。它性能低下,且不具备生产级 WSGI 服务器(如 Gunicorn, uWSGI)的健壮性和安全特性。Dockerfile 中已经安装了 gunicorn,但没有使用。

建议:
移除 hf_runner.py 中的 if __name__ == '__main__': 启动块。应用的启动应交由 Gunicorn 等 WSGI 服务器管理。数据库初始化等一次性任务可以通过一个单独的启动脚本或者 entrypoint 来执行。

app.run(host='0.0.0.0', port=7860, threaded=True)
EOF

RUN chmod -R 777 /app
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critical

执行 chmod -R 777 /app 会给应用目录和所有文件赋予了全局可读、可写、可执行的权限,这是一个严重的安全隐患。任何能够访问容器的用户(包括可能被利用的进程)都可以修改应用代码。

建议:
删除此行。作为替代,应在 Dockerfile 中创建一个非 root 用户来运行应用,并使用 chown/app 目录的所有权赋予该用户。这是容器安全的基本实践。例如:

# ...
RUN addgroup -S appgroup && adduser -S appuser -G appgroup
RUN chown -R appuser:appgroup /app
USER appuser
# ...
CMD [...]

ENV PORT=7860
EXPOSE 7860

CMD ["python", "hf_runner.py"]
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critical

应用的启动指令应使用生产级的 WSGI 服务器,而不是直接运行 Python 脚本。这能提供更好的性能、并发处理和稳定性。

建议:
使用 gunicorn 来启动应用。hf_runner.py 中定义的 app 对象可以被 Gunicorn 自动发现。

CMD ["gunicorn", "--bind", "0.0.0.0:7860", "--workers", "4", "hf_runner:app"]

Comment on lines +36 to +86
RUN cat <<EOF > hf_runner.py
import os
import sys
from flask import Flask, send_from_directory, request
from flask_cors import CORS

# 1. 导入原始应用 (此时 app.py 已经没有 @app.route('/') 了)
sys.path.append(os.getcwd())
try:
from app import app, db
print("Backend app loaded successfully.")
except Exception as e:
print(f"Load error: {e}")
sys.exit(1)

CORS(app)

# 2. 锁定静态资源目录
STATIC_DIR = os.path.abspath('static')
app.static_folder = STATIC_DIR

# 3. 既然 app.py 的根路由没了,我们在这里接管它
@app.route('/')
def serve_index():
return send_from_directory(STATIC_DIR, 'index.html')

# 4. 解决静态资源 (assets) 和 SPA 路由
@app.route('/<path:path>')
def catch_all(path):
# 物理文件存在则直接返回
full_path = os.path.join(STATIC_DIR, path)
if os.path.exists(full_path) and os.path.isfile(full_path):
return send_from_directory(STATIC_DIR, path)

# 如果是 API 请求但没匹配到后端路由,由 Flask 原生逻辑处理 (通常报 404)
if path.startswith('api/'):
return {"error": "API Route Not Found"}, 404

# 其他所有路径 (SPA 路由) 返回 index.html
return send_from_directory(STATIC_DIR, 'index.html')

if __name__ == '__main__':
with app.app_context():
try:
db.create_all()
print("Database initialized.")
except: pass

print("Server starting on port 7860...")
app.run(host='0.0.0.0', port=7860, threaded=True)
EOF
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high

将整个 hf_runner.py 脚本通过 heredoc 方式嵌入 Dockerfile 中,会使 Dockerfile 变得臃肿、难以阅读和维护。同时,这也使得脚本本身无法被静态分析工具(如 linter)检查,也不方便进行单元测试。

建议:
将此脚本作为一个独立文件(例如 hf_runner.py)保存在代码库中,然后在 Dockerfile 中使用 COPY hf_runner.py . 指令将其复制到镜像中,并删除当前的 RUN cat <<EOF ... EOF 块。

Comment on lines +66 to +68
full_path = os.path.join(STATIC_DIR, path)
if os.path.exists(full_path) and os.path.isfile(full_path):
return send_from_directory(STATIC_DIR, path)
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high

此处的 catch_all 路由存在路径遍历漏洞。os.path.join 不会阻止 path 参数中的 ../,导致 full_path 可以指向 STATIC_DIR 目录之外。虽然 send_from_directory 本身是安全的,不会返回目录之外的文件,但 os.path.exists(full_path) 的检查会泄露服务器上任意文件或目录是否存在,这属于信息泄露漏洞。

建议:
修改此逻辑,通过解析绝对路径并验证其是否在 STATIC_DIR 内来安全地检查文件。

    full_path = os.path.abspath(os.path.join(STATIC_DIR, path))
    if full_path.startswith(STATIC_DIR) and os.path.isfile(full_path):
        return send_from_directory(STATIC_DIR, path)

Comment on lines +16 to +18
RUN pipreqs ./backend --force && \
pip install --no-cache-dir -r ./backend/requirements.txt && \
pip install --no-cache-dir python-pptx google-genai openai flask-sqlalchemy flask-migrate flask-cors gunicorn
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medium

在 Dockerfile 中动态生成 requirements.txt 并附加额外的 pip install 命令,会使依赖管理变得脆弱且难以复现。pipreqs 可能无法扫描到所有依赖(如此处手动安装 gunicorn 等库就证明了这一点),导致构建结果不稳定。

建议:

  1. backend 目录下创建一个 requirements.txt 文件,并手动列出所有必需的依赖项。
  2. 将该文件提交到版本库。
  3. 在 Dockerfile 中,用 COPY backend/requirements.txt .RUN pip install -r requirements.txt 来替代当前的依赖安装步骤。这能确保构建的可复现性和依赖的清晰性。

try:
db.create_all()
print("Database initialized.")
except: pass
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medium

使用空的 except: pass 会捕获并静默所有类型的异常,包括程序错误和配置问题。这会导致在数据库初始化失败时没有任何提示,极大地增加了调试难度。

建议:
至少要捕获具体的 Exception 并打印错误信息,以便在出现问题时能够追踪。

        except Exception as e:
            print(f"Database initialization failed: {e}")

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