Unbound: Add hotplug/iface script to request restart

-Rebind to new interfaces cleanly
-Detach from old interfaces cleanly
-Some conf options do not reload dynamically
-Unbound grows some and this will shrink it

Signed-off-by: Eric Luehrsen <ericluehrsen@hotmail.com>

diff --git a/net/unbound/files/unbound.iface b/net/unbound/files/unbound.iface
new file mode 100755 (executable)
index 0000000..172bcae
--- /dev/null
+++ b/net/unbound/files/unbound.iface
@@ -0,0 +1,20 @@
+#!/bin/sh
+##############################################################################
+#
+# Copyright (C) 2016 Eric Luehrsen
+#
+##############################################################################
+#
+# "Restart" Unbound on hotplug interface up:
+# - Clean rebind of unbound to new interfaces
+# - Some of Unbound conf options to not reload run time
+# - Unbound can grow a bit so this will shrink it back
+#
+##############################################################################
+
+if [ "$ACTION" = ifup ] && /etc/init.d/unbound enabled ; then
+  /etc/init.d/unbound restart
+fi
+
+##############################################################################
+