Resetting Docker and removing all applicaion data?

[matt_30]

Is there a recommended process to reset docker and remove all application data so it is configured as it would at 1st use?

I am starting to see several "gremlins" in my docker install.

I have also just received a full disk alert for one of my volumes where the problem was traced to my overlay2 folder using most of the volume space. I found data in there from last year (long before my upgrade to TNAS 5). I suspect a full factory reset would not fix this.

I am unsure if the TNAS OS using docker in the back end too.

The aim is for me to backup my mounted volumes and compose scripts, reset docker. then configure it all again in portainer.

Thanks in advance