server {
    listen 80;
    server_name localhost;
    
    root /usr/share/nginx/html;
    index index.html;

    # 前端静态资源
    location / {
        try_files $uri $uri/ /index.html;
    }

    # API 代理到后端 (使用宿主机IP访问后端容器)
    location /api/ {
        proxy_pass http://172.17.0.1:8000/api/;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        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_read_timeout 120s;
        proxy_connect_timeout 120s;
    }

    # 静态资源缓存
    location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff|woff2)$ {
        expires 1y;
        add_header Cache-Control "public, immutable";
    }

    # gzip 压缩
    gzip on;
    gzip_vary on;
    gzip_min_length 1024;
    gzip_types text/plain text/css application/json application/javascript text/xml application/xml;
}
