Somehow my password changed ( for the second time). Anyone who can help me ?
I logged in with putty to root and then used this code : docker exec -ti <container_name> grafana-cli admin reset-admin-password mypass@123 . I get the message that my admin pass is changed, but I cant log in with it …
Hi @faecon,
Welcome to the 
community support forums !!
If your password is changing without your conscious then this is really very alarming as someone else might have access to your server and can do harm it. (please consult a server administrator to protect it).
Regarding the question of resetting passwords. I recently worked on a similar case and you can view this post as the user provided a very nice alternative method to reset passwords via the Database.
Let us know if this helps. 
Thanks for the fast reply. I will check it tonight.
i am pretty sure no one is hacking my device, but thanks for mentioning
I get “unable to upen database file” 