gunicorn 无法正确启动

Question

当我尝试使用命令 gunicorn -w 3 run:app 启动 gunicorn 时 它崩溃并给我这个错误：

[2021-08-05 08:35:34 +0000] [71840] [INFO] Booting worker with pid: 71840
[2021-08-05 08:35:34 +0000] [71840] [ERROR] Exception in worker process
Traceback (most recent call last):
  File "/home/flask/Unmarked/venv/lib/python3.9/site-packages/gunicorn/arbiter.py", line 589, in spawn_worker
    worker.init_process()
  File "/home/flask/Unmarked/venv/lib/python3.9/site-packages/gunicorn/workers/base.py", line 134, in init_process
    self.load_wsgi()
  File "/home/flask/Unmarked/venv/lib/python3.9/site-packages/gunicorn/workers/base.py", line 146, in load_wsgi
    self.wsgi = self.app.wsgi()
  File "/home/flask/Unmarked/venv/lib/python3.9/site-packages/gunicorn/app/base.py", line 67, in wsgi
    self.callable = self.load()
  File "/home/flask/Unmarked/venv/lib/python3.9/site-packages/gunicorn/app/wsgiapp.py", line 58, in load
    return self.load_wsgiapp()
  File "/home/flask/Unmarked/venv/lib/python3.9/site-packages/gunicorn/app/wsgiapp.py", line 48, in load_wsgiapp
    return util.import_app(self.app_uri)
  File "/home/flask/Unmarked/venv/lib/python3.9/site-packages/gunicorn/util.py", line 359, in import_app
    mod = importlib.import_module(module)
  File "/usr/lib/python3.9/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
  File "<frozen importlib._bootstrap>", line 984, in _find_and_load_unlocked
ModuleNotFoundError: No module named 'run'
[2021-08-05 08:35:34 +0000] [71840] [INFO] Worker exiting (pid: 71840)
[2021-08-05 08:35:34 +0000] [71838] [WARNING] Worker with pid 71840 was terminated due to signal 15
[2021-08-05 08:35:34 +0000] [71838] [INFO] Shutting down: Master
[2021-08-05 08:35:34 +0000] [71838] [INFO] Reason: Worker failed to boot.

当我尝试使用普通命令 flask run 运行应用程序时，它就像一个魅力。

我认为这与结构有关。但我不确定，因为我对烧瓶、gunicorn 和 nginx 很陌生：

Image

在 unmarked.py 文件中现在是这段代码：

import requests

App = Flask(__name__)



@App.route('/', methods=['GET', 'POST'])
def home():
    return render_template('welcome.html')

if __name__ == "__main__":
    App.run()

如何让 gunicorn 跑我一无所知。

Answer 1

问题可能在于您传递给gunicorn 的参数。 run:app 意味着它需要从run.py 中获取app，但在您的情况下，app 位于unmarked.py，因此您需要相应地传递第一个参数。

另外，我建议重命名 App -> app，因为大写的名称是 Python 中的类。

试试

gunicorn -w 3 unmarked:app