You may try https://github.com/wrr/wwwhisper https://github.com/wrr/wwwhisper, although unlike the apache module, wwwhisper runs as a separate service (Django)

You may try https://github.com/wrr/wwwhisper https://github.com/wrr/wwwhisper, although unlike the apache module, wwwhisper runs as a separate service (Django) that nginx communicates with using auth_request module.