Adding the code

scripts.init-premount.0zerotier.sh

@@ -0,0 +1,38 @@
+#!/bin/sh
+
+PREREQ="udev"
+
+prereqs() {
+    echo "$PREREQ"
+}
+
+case "$1" in
+    prereqs)
+        prereqs
+        exit 0
+    ;;
+esac
+
+. /scripts/functions
+
+ZT_APP=/usr/sbin/zerotier-one
+
+# if ZT not on machine, exit
+if [ ! -f ${ZT_APP} ]; then
+	exit 0
+fi
+
+# start zerotier if it exists
+[ "$BOOT" != nfs ] || configure_networking
+
+# create tun device file
+mkdir /dev/net
+mknod /dev/net/tun c 10 200
+
+# set up local loopback
+/sbin/ifconfig lo 127.0.0.1
+
+# run zerotier-one
+${ZT_APP} &> /var/log/zerotier.log &
+
+echo $! >/run/zerotier-one.pid