Metrics from multiple microservice instances

Simon S

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Jul 17, 2022, 12:27:13 AM7/17/22

to Prometheus Users

Hi all,
I would like to collect metrics from multiple microservice instances running in a Kubernetes cluster. Therefore I configure a target in the Prometheus.yml with the target endpoint (e.g. http://xxx.xxx.xx/my-service:3000. There is a loadbalancer before the scaled up microservices. In my understanding it is randomly wich mircoservice metrics Prometheus scrapes. Am I right? What would be the best practice to solve this issue?

Thank you in advance!

BR

Simon

Brian Candler

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Jul 17, 2022, 12:50:23 AM7/17/22

to Prometheus Users

You need to scrape the individual pods, not the load-balanced service.

Ben Kochie

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Jul 17, 2022, 4:14:55 AM7/17/22

to Brian Candler, Prometheus Users

Yes, you will want to use a PodMonitor or ServiceMonitor.

https://github.com/prometheus-operator/prometheus-operator/blob/main/example/user-guides/getting-started/example-app-pod-monitor.yaml

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