@Override
    public void infraApplicationsIsNowComplete() {
        lockedRunnable(() -> {
            if (!infraApplicationsIsComplete) {
                infraApplicationsIsComplete = true;
                logger.log(Level.INFO, "All infrastructure applications have been activated");
                maybeSetDuperModelAsComplete();
            }
        });
    }
Returns true if application is considered an infrastructure application by the DuperModel.
service-monitor/src/main/java/com/yahoo/vespa/service/duper/DuperModelManager.java