so I managed to install Docker painfully in a docker environment, using dedicated macvlan IPs. Now, after lots of hours for fiddling around, I was finally presented with the login screen.
Luckily - as i thought - I copy pasted the initial admin and its long default password in to a blank text file. But these credentials were not accepted.
I cant reset the password since I never provided the system with my E-Mail (nor logged in before).
So I tried
cli:$ sudo docker exec -it nextcloud-aio-mastercontainer bash
02322174364d:/var/www/docker-aio# sudo -u www-data php occ user:add newusername --password newpassword
Could not open input file: occ
So I guessed the filestructure is not correct, maybe I addressed the wrong container:
cli:$ sudo docker exec -it nextcloud-aio-database bash
d180dd92255f:/$ sudo -u www-data php occ user:add newusername --password newpassword
bash: sudo: command not found
// without sudo:
d180dd92255f:/$ php occ user:add newusername --password newpassword
bash: php: command not found
Am I using the right container? where is that file I need to edit in order to create a new admin user?