Caching errors while trying to log in

[thijs-utrecht]

After deploying open-klant 0.1.0 on a kubernetes 1.23.12 cluster the application starts without issues. When trying to login with a (newly created) superuser account it throws the following exception when logging in.

2023-01-25 12:26:35,653 ERROR django.request Internal Server Error: /admin/login/ Traceback (most recent call last): File "/usr/local/lib/python3.8/site-packages/django/core/handlers/exception.py", line 34, in inner response = get_response(request) File "/usr/local/lib/python3.8/site-packages/django/core/handlers/base.py", line 115, in _get_response response = self.process_exception_by_middleware(e, request) File "/usr/local/lib/python3.8/site-packages/django/core/handlers/base.py", line 113, in _get_response response = wrapped_callback(request, *callback_args, **callback_kwargs) File "/usr/local/lib/python3.8/site-packages/django/views/decorators/cache.py", line 44, in _wrapped_view_func response = view_func(request, *args, **kwargs) File "/usr/local/lib/python3.8/site-packages/django/contrib/admin/sites.py", line 399, in login return LoginView.as_view(**defaults)(request) File "/usr/local/lib/python3.8/site-packages/django/views/generic/base.py", line 71, in view return self.dispatch(request, *args, **kwargs) File "/usr/local/lib/python3.8/site-packages/django/utils/decorators.py", line 45, in _wrapper return bound_method(*args, **kwargs) File "/usr/local/lib/python3.8/site-packages/django/views/decorators/debug.py", line 76, in sensitive_post_parameters_wrapper return view(request, *args, **kwargs) File "/usr/local/lib/python3.8/site-packages/django/utils/decorators.py", line 45, in _wrapper return bound_method(*args, **kwargs) File "/usr/local/lib/python3.8/site-packages/django/utils/decorators.py", line 142, in _wrapped_view response = view_func(request, *args, **kwargs) File "/usr/local/lib/python3.8/site-packages/django/utils/decorators.py", line 45, in _wrapper return bound_method(*args, **kwargs) File "/usr/local/lib/python3.8/site-packages/django/views/decorators/cache.py", line 44, in _wrapped_view_func response = view_func(request, *args, **kwargs) File "/usr/local/lib/python3.8/site-packages/django/contrib/auth/views.py", line 61, in dispatch return super().dispatch(request, *args, **kwargs) File "/usr/local/lib/python3.8/site-packages/django/views/generic/base.py", line 97, in dispatch return handler(request, *args, **kwargs) File "/usr/local/lib/python3.8/site-packages/django/views/generic/edit.py", line 142, in post return self.form_valid(form) File "/usr/local/lib/python3.8/site-packages/django/contrib/auth/views.py", line 90, in form_valid auth_login(self.request, form.get_user()) File "/usr/local/lib/python3.8/site-packages/django/contrib/auth/__init__.py", line 108, in login request.session.cycle_key() File "/usr/local/lib/python3.8/site-packages/django/contrib/sessions/backends/base.py", line 297, in cycle_key self.create() File "/usr/local/lib/python3.8/site-packages/django/contrib/sessions/backends/cache.py", line 50, in create raise RuntimeError( RuntimeError: Unable to create a new session key. It is likely that the cache is unavailable

[Michel-Verhoeven]

I just ran into the same problem when deploying open-klant 0.1. I noticed thad open klant needs Redis for caching so you need to set CACHE_DEFAULT and CACHE_AXES environment variables to point to your Redis container and it should work.