从单个Python Web框架运行多个站点

from flask import Flask

app1 = Flask(__name__)
app2 = Flask(__name__)

@app1.route('/')
def hello_world():
    return 'Hello, World!'

@app2.route('/')
def hello_world2():
    return 'Hello, World 2!'

if __name__ == '__main__':
    app1.run(port=5000)
    app2.run(port=5001)

server {
    listen 80;
    server_name example1.com;

    location / {
        proxy_pass http://localhost:5000;
    }
}

server {
    listen 80;
    server_name example2.com;

    location / {
        proxy_pass http://localhost:5001;
    }
}

virtualenv venv1
virtualenv venv2