├── app                   【与Web框架通信相关】
│   ├── base.py
│   ├── __init__.py
│   ├── pasterapp.py
│   └── wsgiapp.py
├── arbiter.py            【master进程，在gunicorn中叫arbiter】
├── config.py             【配置相关，可以通过命令行参数、配置文件等方式来配置guniconrn】
├── debug.py
├── errors.py
├── glogging.py           【产生的日志，可以发送到屏幕或者日志文件（access和error）】
├── http                  【处理客户端发送过来的http请求】
│   ├── body.py
│   ├── errors.py
│   ├── __init__.py
│   ├── message.py
│   ├── parser.py
│   ├── unreader.py
│   └── wsgi.py
├── __init__.py
├── instrument
│   ├── __init__.py
│   └── statsd.py
├── pidfile.py            【gunicorn运行时的进程编号，可以写到一个文件】
├── reloader.py
├── sock.py               【gunicorn作为动态Web服务器，需要使用socket】
├── systemd.py
├── util.py               【工具性函数和类】
└── workers               【pre-worker模型中，worker有syncgthreadggevent等模式】├── base_async.py├── base.py├── geventlet.py├── ggevent.py├── gthread.py├── gtornado.py├── __init__.py├── sync.py└── workertmp.py

# main.pyimport multiprocessing
import gunicorn.app.basedef app_handler(environ, start_response):status = '200 OK'response_headers = [('Content-Type', 'text/plain'),]start_response(status, response_headers)# response_body = ['Works finen']response_body = []for key, value in environ.items():response_body.append(f'{key}: {value}')response_body.append('nWorks finen')return response_body.encode('utf-8')class APPHandler(object):def __init__(self, environ, start_response):self.environ = environself.start_response = start_responsedef __call__(self, environ, start_response):self.environ = environself.start_response = start_responsedef __iter__(self):data = 'Hello, World!n'status = '200 OK'response_headers = [('Content-type', 'text/plain'),('Content-Length', str(len(data))),('Foo', 'Bu00e5r'),  # Foo: Bår]self.start_response(status, response_headers)yield data.encode("utf-8")class APPServer(gunicorn.app.base.BaseApplication):def __init__(self, app, options=None):self.options = options or {}self.application = appsuper().__init__()def load_config(self):config = {key: value for key, value in self.options.items()if key in self.cfg.settings and value is not None}for key, value in config.items():self.cfg.set(key.lower(), value)def load(self):return self.applicationif __name__ == '__main__':options = {'bind': ['0.0.0.0:6000', '[::]:6000'],'workers': multiprocessing.cpu_count(),}APPServer(app_handler, options).run()# APPServer(APPHandler, options).run()

python -m  gunicorn.app.wsgiapp project.wsgi --chdir /path/to/project-root -c /path/to/project-cfg.py

myapp1 myapp2 myproject  manage.py

# wsgi.py"""
WSGI config for django_demo project.It exposes the WSGI callable as a module-level variable named ``application``.For more information on this file, see
https://docs.djangoproject.com/en/3.1/howto/deployment/wsgi/
"""import osfrom django.core.wsgi import get_wsgi_applicationos.environ.setdefault('DJANGO_SETTINGS_MODULE', 'django_demo.settings')application = get_wsgi_application()