Windows Server环境下使用Nginx部署Flask应用的全过程

C:\flask-app\
   ├── app.py          # Flask 主程序
   ├── requirements.txt
   ├── static\         # 静态文件
   └── venv\           # Python 虚拟环境

from flask import Flask

app = Flask(__name__)

@app.route('/')
def home():
    return "Hello, World! Flask on Windows Server with Nginx!"

if __name__ == '__main__':
    app.run(host='0.0.0.0', port=5000)

# 创建虚拟环境
python -m venv venv
venv\Scripts\activate

# 安装 Flask 和 Waitress（生产级 WSGI 服务器）
pip install flask waitress

waitress-serve --port=5000 --threads=4 app:app

@echo off
call venv\Scripts\activate
waitress-serve --port=5000 --threads=4 app:app

worker_processes  1;

events {
    worker_connections  1024;
}

http {
    include       mime.types;
    default_type  application/octet-stream;

    # 反向代理配置
    upstream flask_app {
        server 127.0.0.1:5000;  # Waitress 监听地址
    }

    server {
        listen       80;
        server_name  your_domain.com;  # 替换为域名或服务器 IP

        # 静态文件处理（由 Nginx 直接代理）
        location /static {
            alias C:/flask-app/static;  # 替换为实际路径
            expires 30d;
        }

        # 动态请求代理到 Flask
        location / {
            proxy_pass http://flask_app;
            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;
        }
    }
}

# 检查配置语法
nginx -t

# 启动 Nginx
start nginx

# 重启（修改配置后）
nginx -s reload

nssm install Nginx "C:\nginx\nginx.exe"  # 替换为 Nginx 实际路径
nssm start Nginx

nssm install FlaskApp "C:\flask-app\venv\Scripts\python.exe" "C:\flask-app\venv\Scripts\waitress-serve.exe" --port=5000 app:app
nssm start FlaskApp

server {
    listen 443 ssl;
    ssl_certificate     C:/ssl/your_domain.crt;
    ssl_certificate_key C:/ssl/your_domain.key;
    # ... 其他配置
}

upstream flask_app {
    server 127.0.0.1:5000;
    server 127.0.0.1:5001;  # 启动第二个实例
    least_conn;  # 使用最少连接算法
}