@Override
       public HashMap<String,String> getDefaultMetricDimensions(){
        HashMap<String, String> dimensions = new HashMap<>();
        dimensions.put("clustername", "testClusterName");
        return dimensions;
    }
Creates a new SimpleService instance

@param parent     The parent ConfigProducer.
@param name       Service name
config-model/src/test/java/com/yahoo/vespa/model/test/SimpleService.java