additions and reorganization

scripts/installers/docker-setup.sh

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+#
+#
+set -euo pipefail
+
+SRCDIR="/opt/arm"
+DATADIR="/srv/docker/arm"
+
+git clone -b docker --depth=1 https://github.com/1337-server/automatic-ripping-machine.git "$SRCDIR"
+mkdir -p "$DATADIR"
+
+cd "$SRCDIR"
+docker build -t arm ${APT_PROXY:+--build-target ${APT_PROXY}} .
+
+install setup/docker-arm.rules /etc/udev/rules.d/docker-arm.rules
+udevadm control --reload
+echo done.  insert a disc...

setup/docker-arm.rules

@@ -0,0 +1,8 @@
+# docker-arm.rules
+#   user udev rule to launch ARM automagically whenever new media is inserted
+#
+# this rule will trigger twice
+# 1. for the media change event (script exits early in this case)
+# 2. after udev rules have loaded media details
+ACTION=="change", SUBSYSTEM=="block", ENV{DISK_MEDIA_CHANGE}=="1", ENV{ID_TYPE}=="cd", RUN+="/opt/arm/scripts/docker_arm_wrapper.sh %k"
+