startup: Adding example upstart scripts (e.g., for Ubuntu Linux)

Change-Id: Ia43e0e5e83d54d4f5bff2120ca3424b43849feb2
Refs: #1188
diff --git a/contrib/upstart/nrd.conf b/contrib/upstart/nrd.conf
new file mode 100644
index 0000000..574b81c
--- /dev/null
+++ b/contrib/upstart/nrd.conf
@@ -0,0 +1,22 @@
+# nrd.conf
+#
+# NDN RIB Manager Daemon
+
+description "NDN RIB Manager Daemon"
+
+start on started  nfd
+stop  on stopping nfd
+
+respawn
+respawn limit unlimited
+
+setuid ndn
+setgid ndn
+
+pre-start exec sleep 2
+script
+  export HOME=/usr/local/var/lib/ndn/nrd
+  /usr/local/bin/nrd --config /usr/local/etc/ndn/nfd.conf 2>> /usr/local/var/log/ndn/nrd.log
+end script
+
+post-stop exec sleep 2