Added build script and fixed some bugs

build.sh

@@ -0,0 +1,20 @@
+#!/bin/sh
+
+set -eux
+
+ROOTFS=plugin/rootfs
+CONFIG=plugin/config.json
+
+tag=redcanari/device-volume-driver
+docker build -t "$tag" -f Dockerfile .
+id=$(docker create "$tag" true)
+rm -Rf $ROOTFS
+mkdir -p $ROOTFS
+docker export "$id" | tar -x -C $ROOTFS
+docker rm -vf "$id"
+docker rmi "$tag"
+cp config.json $CONFIG
+
+docker plugin rm -f redcanari/device-volume-driver || echo
+docker plugin create redcanari/device-volume-driver ./plugin
+docker plugin enable redcanari/device-volume-driver