Create Custom Metrics in Prometheus: Guide

To create custom metrics in Prometheus, you need to follow these steps:

1. Develop an application or service for exposing metrics. You can utilize Prometheus client libraries to assist in implementing metric exposure within your application.
2. Define the custom metrics you want to expose in your application and update their values to your desired values in the appropriate places.
3. Set up Prometheus to regularly pull these custom metrics from your application. Add your application to Prometheus’ configuration file so that Prometheus can regularly fetch metric data.
4. Write queries in PromQL query language to leverage your custom metric data for creating dashboards, alerting rules, etc.

By following the steps above, you can create and use custom metrics in Prometheus.