How to Monitor Prometheus Metrics with OpenTelemetry Collector?

OpenTelemetry provides a component called OpenTelemetry Collector, which can be used to collect data from multiple sources. Prometheus is a popular metrics monitoring tool that has a wide adoption. If you’re using Prometheus SDKs to generate metrics, you can collect them via OpenTelemetry collector and send them to a backend of your choice. In this tutorial, you will configure an OpenTelemetry Collector to scrape Prometheus metrics from a sample Flask application and send it to SigNoz for monitoring and visualization. We cover: What is Prometheus? What is OpenTelemetry What is OpenTelemetry Collector? How does OpenTelemetry Collector collect data? Flask Metrics that you can collect with OpenTelemetry in Prometheus format Collecting Prometheus Metrics with OpenTelemetry Collector Prerequisites Set up the Flask application Set up SigNoz Set up OpenTelemetry Collector Monitor Prometheus Metrics in SigNoz Conclusion Further Reading If you want to jump straight into implementation, start wi