private SentinelConfig.Application.Builder getApplicationConfig() {
        SentinelConfig.Application.Builder builder = new SentinelConfig.Application.Builder();
        builder.tenant(applicationId.tenant().value());
        builder.name(applicationId.application().value());
        builder.environment(zone.environment().value());
        builder.region(zone.region().value());
        builder.instance(applicationId.instance().value());
        return builder;
    }
Overrides parent method as this is named config-sentinel and not configsentinel all over Vespa
@return service type for config-sentinel
config-model/src/main/java/com/yahoo/vespa/model/ConfigSentinel.java