Docker container cannot access dynamically plugged USB devices

Product support balenaOS
14

@jason10 I found the solution for our needs:

I had not seen the UDEV=1 env one can set in the balena base images:
https://www.balena.io/docs/reference/base-images/base-images/#working-with-dynamically-plugged-devices

With that one set, as well as privileged: true plugging and replugging works. The service in the docker-compose.yml looks like this:

  cameracontroller:
    image:  balenalib/jetson-tx2-ubuntu:melodic
    environment:
      - UDEV=1
    restart: never
    privileged: true
    devices:
      - '/dev:/dev'
    command: /bin/bash
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