Mxs 1140 keepalived (#166)

add keepalived test

maxscale-system-test/keepalived_cnf/is_maxscale_running.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+fileName="maxadmin_output.txt"
+rm $fileName
+timeout 2s maxadmin list servers > $fileName
+to_result=$?
+if [ $to_result -ge 1 ]
+then
+  echo Timed out or error, timeout returned $to_result
+  exit 3
+else
+  echo MaxAdmin success, rval is $to_result
+  echo Checking maxadmin output sanity
+  grep1=$(grep server1 $fileName)
+  grep2=$(grep server2 $fileName)
+
+  if [ "$grep1" ] && [ "$grep2" ]
+  then
+    echo All is fine
+    exit 0
+  else
+    echo Something is wrong
+    exit 3
+  fi
+fi