Currently I have an Octoprint container running great, even the webcam is working. The only problem that I am running into is that I can make it retain permissions for ttyUSB0..
I've attempted to setup a rule for it to chown root:dialout, or chmod 666 /dev/ttyUSB0. Didn't work.
Installed crontab, added a root crontab for @reboot chown root:dailout /dev/ttyUSB0. Still didn't work.
Created bash scripts.
Created a init.d script and updated-rc. Still didn't work
At the moment this is what I have if the system reboots.
crw-rw----. 1 root 18 188, 0 Apr 24 03:19 /dev/ttyUSB0
This honestly isn't a super huge ordeal, just annoyance.