I have an issue on a QNap Docker install, I've been using v0.20.7-v8 with no issues in-conjunction with HomeAssistant (also in a container).
I've now installed v1.0.0-12-amd64 but find I am unable to login to my instance, when I try the webpage it essentially locks up - i.e. no visible error but it doesn 't log in and I cannot re-attempt with different credentials.
In the container station on the Qnap I see the following error line (everything else looks fine):-
Potentially unhandled rejection  Error: EACCES: permission denied, open '/data/.sessions.json'
If I force refresh the webpage and attempt again then the error line is repeated.
I've opened the .sessions.json file but there's nothing there that means anything to me unfortunately. However, if I comment out the adminAuth section of settings.js then everything works as expected.
I get the feeling I'm maybe missing something fundamental but I haven't a clue what that might be. Any advice on how to re-add this little bit of security to my setup would be gratefully received!