enable-swarm-device

#!/bin/bash
USBDEV=$(readlink -f /dev/$1)
CONTAINER_NAME=$2
minor=$(stat -c '%T' $USBDEV)
major=$(stat -c '%t' $USBDEV)
if [[ -z $minor || -z $major ]]; then
    echo "Error setting permissions for container: Device $1 not found"
    exit
fi
dminor=$((0x${minor}))
dmajor=$((0x${major}))
CID=$(docker ps --no-trunc -q --filter name=$CONTAINER_NAME | head -1)
if [[ -z $CID ]]; then
    echo "Error setting permissions for container: Container $2 not found"
    exit
fi
echo "Setting permissions to access $1 for container $2"
echo "c $dmajor:$dminor rwm" > /sys/fs/cgroup/devices/docker/$CID/devices.allow
echo "Creating node inside container"
docker exec $CID mknod /dev/$1 c $dmajor $dminor -m 0666