A local_settings.py file can be placed here to override/extend the settings bundled with Defect Dojo. This folders is ignore by git and docker.
If a file if placed here, it will be copied on startup to dojo/settings/local_settings.py.
For an example, see template-local_settings
Please note this copy action could fail if you have mounted the full dojo/ folder, but that is owned by a different user/group.
That's why this copy action only happens in docker-compose release mode, and not in dev/ptvsd/unit_tests/integration_tests modes.
For advanced usage you can also place a settings.dist.py or settings.py file. These will also be copied on startup to dojo/settings.
The files in this docker/extra_settings folder are not used by the nginx container, as this container needs the settings at build time.