使用Nginx搭建Openai接口反向代理

Evan #nginx

使用Debian海外云服务器搭建openai api服务的反向代理

为什么我反对使用 CF Worker / AI Gateway 去反代 OpenAI API

原因在于无论是Worker还是Gateway都无法隐藏我们的请求访问信息， 尤其是通过 Cf-Worker 这个头，cloudflare会把我 Worker 绑定的域名都卖掉。

要求

  • 一台Debian系统的海外云服务器

  • 一个域名

  • ssl证书

开始操作

# 安装nginx
apt install nginx -y

# 配置

server {
 listen 443 ssl;
 server_name [domain_name];
 ssl_certificate [public_key.pem];
 ssl_certificate_key [private_key.key];
 ssl_session_cache shared:le_nginx_SSL:1m;
 ssl_session_timeout 1440m;
 ssl_protocols TLSv1 TLSv1.1 TLSv1.2 TLSv1.3;
 ssl_prefer_server_ciphers on;
 ssl_ciphers TLS13-AES-256-GCM-SHA384:TLS13-CHACHA20-POLY1305-SHA256:TLS13-AES-128-GCM-SHA256:TLS13-AES-128-CCM-8-SHA256:TLS13-AES-128-CCM-SHA256:EECDH+CHACHA20:EECDH+CHACHA20-draft:EECDH+ECDSA+AES128:EECDH+aRSA+AES128:RSA+AES128:EECDH+ECDSA+AES256:EECDH+aRSA+AES256:RSA+AES256:EECDH+ECDSA+3DES:EECDH+aRSA+3DES:RSA+3DES:!MD5;
 location / {
 proxy_pass  https://api.openai.com/;
 proxy_ssl_server_name on;
 proxy_set_header Host api.openai.com;
 proxy_set_header Connection '';
 proxy_http_version 1.1;
 chunked_transfer_encoding off;
 proxy_buffering off;
 proxy_cache off;
 proxy_set_header X-Forwarded-For $remote_addr;
 proxy_set_header X-Forwarded-Proto $scheme;
 }
}

#测试并启动
nginx -t 
nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
nginx: configuration file /etc/nginx/nginx.conf test is successful
nginx -s reload
2024/11/18 06:22:15 [notice] 500550#500550: signal process started

测试访问

curl https://api-proxy.evanidea.top
{
    "message": "Welcome to the OpenAI API! Documentation is available at https://platform.openai.com/docs/api-reference"
}

使用python测试

from openai import OpenAI

OPENAI_API_KEY = "sk-xxxxx"
BASE_URL = "https://[domain_name]/v1"
client = OpenAI(base_url=BASE_URL, api_key=OPENAI_API_KEY)
completion = client.chat.completions.create(
    model="gpt-4o-2024-08-06",
    messages=[
        {"role": "system", "content": "你是一个助手 公司业务管理"},
        {
            "role": "user",
            "content": "你是一个公司的小助理，你被安排了公司业务的内容管理的工作。我会给你现在公司的业务介绍和业务下项目的负责人信息，你要根据给到你的信息，回答我的问题。如果你找不到对应的信息，请如实告诉我。",
        },
    ],
)

print(completion.choices[0].message)