public static IStreamConfig UsePrometheusReporter(
this IStreamConfig config,
TimeSpan metricInterval,
int prometheusReporterEndpointPort = 9090,
bool exposeLibrdkafkaStatistics = false)
{
var prometheusRunner = new PrometheusRunner(prometheusReporterEndpointPort);
var prometheusMetricsExporter = new PrometheusMetricsExporter(prometheusRunner);
config.MetricsIntervalMs = (long)metricInterval.TotalMilliseconds;
config.ExposeLibrdKafkaStats = exposeLibrdkafkaStatistics;
config.MetricsReporter = prometheusMetricsExporter.ExposeMetrics;
config.AddMiddleware(prometheusRunner);
if (config.ExposeLibrdKafkaStats && config is StreamConfig streamConfig)
{
streamConfig.StatisticsIntervalMs = (int)config.MetricsIntervalMs / 3;
}
return(config);
}
public PrometheusMetricsExporter(PrometheusRunner prometheusRunner)
{
this.prometheusRunner = prometheusRunner;
}
