Question

A platform team is adding monitoring to a new microservice. They deploy Prometheus and want it to begin collecting the service's metrics. The service already exposes numeric metrics in the Prometheus text format at an HTTP path. What must happen for Prometheus to start gathering these metrics using its standard model?

Accepted Answer

Prometheus periodically scrapes (pulls) the metrics from the service's exposed HTTP endpoint according to its scrape configuration

Answer

The service must push its metrics directly to the Prometheus server over a persistent gRPC stream

Answer

Prometheus must be configured as a sidecar container inside every pod to read metrics from shared memory

Answer

The service must forward its metrics to a log aggregator, which Prometheus then queries for numeric values