Is it possible to expose a USB device to an LXC/Docker container?
The --device option now allows exposing a /dev to a container, for example:
docker run -t -i --device=/dev/ttyUSB0 ubuntu bash(I found from this Stack Overflow answer.)
While not possible via Docker itself (see previous answer) using lxc-cgroup directly on the running container seems to do the trick for me:
sudo lxc-cgroup -n 0dd4c652d0740e5ddb6f80e6f2ec2c52dd6435b22c8114c000c58ca9703ebc62 devices.allow "c 166:* rwm"166 stands for ttyACM, the device class.
The Docker id needs to be the complete one (via Docker inspect "ID").