deployment crashed

Question

Traceback (most recent call last):

File "/app/manage.py", line 22, in

main()

File "/app/manage.py", line 18, in main

execute_from_command_line(sys.argv)

File "/opt/venv/lib/python3.11/site-packages/django/core/management/__init__.py", line 401, in execute_from_command_line

utility.execute()

File "/opt/venv/lib/python3.11/site-packages/django/core/management/__init__.py", line 345, in execute

settings.INSTALLED_APPS

File "/opt/venv/lib/python3.11/site-packages/django/conf/__init__.py", line 83, in __getattr__

self._setup(name)

File "/opt/venv/lib/python3.11/site-packages/django/conf/__init__.py", line 70, in _setup

self._wrapped = Settings(settings_module)

^^^^^^^^^^^^^^^^^^^^^^^^^

File "/opt/venv/lib/python3.11/site-packages/django/conf/__init__.py", line 177, in __init__

mod = importlib.import_module(self.SETTINGS_MODULE)

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

File "/root/.nix-profile/lib/python3.11/importlib/__init__.py", line 126, in import_module

return _bootstrap._gcd_import(name[level:], package, level)

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

File "", line 1204, in _gcd_import

File "", line 1176, in _find_and_load

File "", line 1147, in _find_and_load_unlocked

File "", line 690, in _load_unlocked

File "", line 940, in exec_module

File "", line 241, in _call_with_frames_removed

File "/app/greatkart/settings.py", line 24, in

SECRET_KEY = config('SECRET_KEY')

^^^^^^^^^^^^^^^^^^^^

File "/opt/venv/lib/python3.11/site-packages/decouple.py", line 199, in __call__

return self.config(*args, **kwargs)

^^^^^^^^^^^^^^^^^^^^^^^^^^^^

File "/opt/venv/lib/python3.11/site-packages/decouple.py", line 83, in __call__

return self.get(*args, **kwargs)

^^^^^^^^^^^^^^^^^^^^^^^^^

File "/opt/venv/lib/python3.11/site-packages/decouple.py", line 68, in get

raise UndefinedValueError('{} not found. Declare it as envvar or define a default value.'.format(option))

decouple.UndefinedValueError: SECRET_KEY not found. Declare it as envvar or define a default value.