gunicorn 如何通过代码启动？

Z时代
2024-02-12
分类：IT

gunicorn 如何通过代码启动？

使用 uvicorn 的时候，可以通过 import 导包的方式使用：

main.py

import uvicorn
import settings
import psutil
from api import create_app
app = create_app()
if __name__ == "__main__":
    worker_num = (
        settings.ASGI_CONFIG.workers
        if settings.ASGI_CONFIG.workers > 0
        else psutil.cpu_count(logical=False)
    )
    uvicorn.run(
        app='main:app',
        host="0.0.0.0",
        port=settings.ASGI_CONFIG.port,
        workers=worker_num,    )

然后通过下面的方式启动：

python main.py

但是，我没有找到 gunicorn 这样的用法：
api.py

from werkzeug.wrappers import Request, Response
class MovieApp(object):
    """Implements a WSGI application for managing your favorite movies."""
    def __init__(self):
        pass
    def dispatch_request(self, request):
        """Dispatches the request."""
        return Response('Hello World!')
    def wsgi_app(self, environ, start_response):
        """WSGI application that processes requests and returns responses."""
        request = Request(environ)
        response = self.dispatch_request(request)
        return response(environ, start_response)
    def __call__(self, environ, start_response):
        """The WSGI server calls this method as the WSGI application."""
        return self.wsgi_app(environ, start_response)
def create_app():
    """Application factory function that returns an instance of MovieApp."""
    app = MovieApp()
    return app
if __name__ == '__main__':
    from gunicorn.app.wsgiapp import WSGIApplication
    app = create_app()
    WSGIApplication('api:app').run()