server {
    listen 80;
    server_name localhost;

    # 前端静态文件
    location / {
        root /var/www/html;
        index index.html;
        try_files $uri $uri/ =404;
    }

    # API请求代理到后端Flask应用
    location /api/ {
        proxy_pass http://127.0.0.1:5000;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }
    
    # 健康检查端点
    location /health {
        proxy_pass http://127.0.0.1:5000;
    }
}