Azure Django Web App: raise KeyError(key) from None KeyError: 'SECRET_KEY'

I'm trying to deploy my django app on azure from the repo on GitHub. In the settings.py file, I dont want to store the secret key directly on GitHub, so I added that on the configuration application setting of the Azure app page. To retrieve it, my settings.py file has

SECRET_KEY = os.environ['SECRET_KEY']

The error I'm getting is: raise KeyError(key) from None KeyError: 'SECRET_KEY'

Am I properly retrieving the secret key?

You are not using the environment variable correctly.

Firstly, you could set the environment variable in settings.py like below, rather than retrieve it in this file.

SECRET_KEY = '12345'

You could retrieve the variable in your code like what you displayed:

secret_key = os.environ['SECRET_KEY']

Considering you don't want to expose your SECRET_KEY value on GitHub, you could set a temp value for invoking, which is required. After deploy, the value on portal App Settings would cover the value.