@Override
    public void run() {
        Optional<RoutingTable> table = tableSupplier.get();
        table.ifPresent(this::reportHealth);
        reportConfigAge();
    }
Report Nginx metrics periodically.

@author Morten Tokle
@author Martin Polden
routing-generator/src/main/java/com/yahoo/vespa/hosted/routing/nginx/NginxMetricsReporter.java