i have to list the most popular services based on the api calls made to them respectively . we use Prometheus as data source . but our services are not exposing http_requests_total metric. nor any metric which is related to it related to it . so how do we make our services ensure that it exposes this metric. unfortunately i dont have access to source code of our services our services are being discovered by promethus with the use of service monitors . we have our services running as microservices in AKS.

i tried to find in the prometheus ui and in the services metrics endpoint the http_requests_total is not there