trackrdrd: init script: assume the default config file

                        make sure varnishd is running and trackrdrd is
                        not already running

etc/trackrdrd

@@ -15,11 +15,14 @@
 #	sends each data record to an ActiveMQ message broker.
 ### END INIT INFO
 
-CONFIG=/var/opt/varnish_tracking/etc/run.conf
 PIDFILE=/var/run/trackrdrd.pid
 
 TRACKRDRD_BIN=/var/opt/varnish_tracking/bin/trackrdrd
-CMD="${TRACKRDRD_BIN} -c ${CONFIG}"
+
+# We use the default config /etc/trackrdrd.conf, no -c option needed
+#CONFIG=/var/opt/varnish_tracking/etc/run.conf
+#CMD="${TRACKRDRD_BIN} -c ${CONFIG}"
+CMD="${TRACKRDRD_BIN}"
 
 # Child process stops after receiving a request
 CURL=/usr/bin/curl
@@ -61,8 +64,22 @@ function getstatus_trackrdrd {
     echo "trackrdrd running"
 }
 
+function check_varnishd {
+    pgrep -f varnishd.*pa_proxy >/dev/null
+    if [ $? -ne 0 ]
+        echo "varnishd not running"
+        exit 1
+    fi
+}
+
 case "$1" in
     start)
+        checkproc ${TRACKRDRD_BIN}
+        if [ $? -eq 0 ]; then
+            echo "trackrdrd already running"
+            exit 1
+        fi
+        check_varnishd
 	start_trackrdrd
 	exit 0
         ;;
@@ -71,6 +88,7 @@ case "$1" in
 	exit 0
         ;;
     restart)
+        check_varnishd
         echo "Restarting trackrdrd"
         stop_trackrdrd
 	sleep 1