Gunicorn 소켓에서 --bind unix:/tmp/gunicorn.sock config.wsgi:application 이렇게 구동하면

[2022-02-14 13:40:01 +0900] [64294] [INFO] Starting gunicorn 20.1.0
[2022-02-14 13:40:01 +0900] [64294] [INFO] Listening at: unix:/tmp/gunicorn.sock (64294)
[2022-02-14 13:40:01 +0900] [64294] [INFO] Using worker: sync
[2022-02-14 13:40:01 +0900] [64296] [INFO] Booting worker with pid: 64296
[2022-02-14 13:40:02 +0900] [64296] [ERROR] Exception in worker process
Traceback (most recent call last):
  File "/home/ubuntu/venvs/mysite/lib/python3.8/site-packages/gunicorn/arbiter.py", line 589, in spawn_worker
    worker.init_process()
  File "/home/ubuntu/venvs/mysite/lib/python3.8/site-packages/gunicorn/workers/base.py", line 134, in init_process
    self.load_wsgi()
  File "/home/ubuntu/venvs/mysite/lib/python3.8/site-packages/gunicorn/workers/base.py", line 146, in load_wsgi
    self.wsgi = self.app.wsgi()
  File "/home/ubuntu/venvs/mysite/lib/python3.8/site-packages/gunicorn/app/base.py", line 67, in wsgi
    self.callable = self.load()
  File "/home/ubuntu/venvs/mysite/lib/python3.8/site-packages/gunicorn/app/wsgiapp.py", line 58, in load
    return self.load_wsgiapp()
  File "/home/ubuntu/venvs/mysite/lib/python3.8/site-packages/gunicorn/app/wsgiapp.py", line 48, in load_wsgiapp
    return util.import_app(self.app_uri)
  File "/home/ubuntu/venvs/mysite/lib/python3.8/site-packages/gunicorn/util.py", line 359, in import_app
    mod = importlib.import_module(module)
  File "/usr/lib/python3.8/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
  File "<frozen importlib._bootstrap>", line 991, in _find_and_load
  File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 848, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/ubuntu/projects/mysite/config/wsgi.py", line 16, in <module>
    application = get_wsgi_application()
  File "/home/ubuntu/venvs/mysite/lib/python3.8/site-packages/django/core/wsgi.py", line 12, in get_wsgi_application
    django.setup(set_prefix=False)
  File "/home/ubuntu/venvs/mysite/lib/python3.8/site-packages/django/__init__.py", line 19, in setup
    configure_logging(settings.LOGGING_CONFIG, settings.LOGGING)
  File "/home/ubuntu/venvs/mysite/lib/python3.8/site-packages/django/conf/__init__.py", line 83, in __getattr__
    self._setup(name)
  File "/home/ubuntu/venvs/mysite/lib/python3.8/site-packages/django/conf/__init__.py", line 70, in _setup
    self._wrapped = Settings(settings_module)
  File "/home/ubuntu/venvs/mysite/lib/python3.8/site-packages/django/conf/__init__.py", line 196, in __init__
    raise ImproperlyConfigured("The SECRET_KEY setting must not be empty.")
django.core.exceptions.ImproperlyConfigured: The SECRET_KEY setting must not be empty.
[2022-02-14 13:40:02 +0900] [64296] [INFO] Worker exiting (pid: 64296)
[2022-02-14 13:40:02 +0900] [64294] [INFO] Shutting down: Master
[2022-02-14 13:40:02 +0900] [64294] [INFO] Reason: Worker failed to boot.

이렇게 뜨는데 뭐가 문제인거죠?
참고로 그 이전 챕터인 settings 옵션, 로컬설정 자동화, 서버 환경설정은 안하고 서버설정 자동화만 했습니다.