Scrape multiple pods under one service

[MalekSmaoui]

The issue is that i deployed the exporter in a pod of its own but i want to scrape metrics from certain pods under a service to prevent wrongful scaling cause of the round-robin algorithm, is this even possible the way i'm using the exporter or should i deploy it using a side-car on each api pod?

[akuzia]

You should deploy it to each pod and scrape each pod metrics endpoint, as HPA expects one metric per pod.
Your autoscaler combine all pods metrics to decide if scaling is needed based on idle_workers/queue_length. for example: avg(phpfpm_processes_idle{namespace="app", component="php-fpm"}) by (namespace, pod)

Or create a custom metric in prometheus to select total pressure and then reference that metric in your HPA, again grouping by namespace and pod