Prometheus metrics / OpenMetrics code instrumentation.

Prometheus metrics and OpenMetrics provide a standardized approach to code instrumentation across various programming languages such as Golang, Java, Python, and JavaScript, facilitating the monitoring of applications by collecting and exposing metrics. Originally developed at SoundCloud and now a community-driven project under the Cloud Native Computing Foundation, Prometheus uses a highly dimensional flat metric format that incorporates labels or tags, allowing for dynamic aggregation and segmentation of data. This widely adopted format has influenced other monitoring systems and has been established as an independent project, OpenMetrics, aiming to become an industry standard. The system's versatility is enhanced by client libraries that support different languages and metric types, such as counters, gauges, histograms, and summaries. Sysdig Monitor integrates with Prometheus, providing additional benefits like automated metric discovery and collection, enriched with Docker, Kubernetes, and cloud provider metadata, making it easier to monitor microservices environments. The use of Prometheus exporters allows older applications to integrate into this modern metric ecosystem by translating their native formats into the Prometheus metrics format.