private static void generateSLSNodeFile(String outputFile)
throws IOException {
Writer output = new FileWriter(outputFile);
try {
ObjectMapper mapper = new ObjectMapper();
ObjectWriter writer = mapper.defaultPrettyPrintingWriter();
for (Map.Entry<String, Set<String>> entry : rackNodeMap.entrySet()) {
Map rack = new LinkedHashMap();
rack.put("rack", entry.getKey());
List nodes = new ArrayList();
for (String name : entry.getValue()) {