Create HPA with Custom Metrics pulled through Instrumented metric
In this lesson, we will confirm that HPA can also pull metrics using Instrumented Metrics.
We confirmed that Prometheus' metrics, fetched by Prometheus Adapter and converted into Kubernetes’ custom metrics, can be used in HPA. So far, we used metrics pulled by Prometheus through exporters (nginx_ingress_controller_requests). Given that the adapter fetches metrics from Prometheus, it shouldn’t matter how they got there. Nevertheless, we’ll confirm that instrumented metrics can be used as well. That will give us an opportunity to cement what we learned so far and, at the same time, maybe learn a few new tricks.