splitting kubernetes service ip with regex

[bahho]

What did you do?
I have pods with jmx-exporter. I would like to scrape only the exposed ports.
I do use the annotation "prometheus.io/port" but to be that only the exposed port is scraped in case some pods/services dont have the annotation. To do so I am trying to replace the ports in the addresses that I get from the service endpoints.

I have multiple ports exposed in the pods so that with the below config I get endpoints in prometheus like
http://10.131.0.2:1111 http://10.131.0.2:2222 http://10.131.0.2:3333 http://10.131.0.2:4444

I would like to split up the pod IP and append the port number I would like to scrape.

I don't seem to be able to make use of the regexes...

What I need is something like

      - source_labels: [__meta_kubernetes_service_annotation_prometheus_io_port]
        action: replace
        target_label: __address__
        regex: functioning regex 
        replacement:  ${1}:2222

where ${1} is the service IP and 2222 is the port I want.

Can anybody help me with that?

Environment
OpenShift

• Prometheus version:

  1.6.2

• Prometheus configuration file:

    - job_name: 'kubernetes-test'
      kubernetes_sd_configs:
      - role: endpoints

      relabel_configs:
      - source_labels: [__meta_kubernetes_service_annotation_prometheus_io_scrape]
        action: keep
        regex: true
      - source_labels: [__meta_kubernetes_service_annotation_prometheus_io_port]
        action: replace
        target_label: __address__
        regex: (.+)
        replacement:  
 

[brian-brazil]

It makes more sense to ask questions like this on the prometheus-users mailing list rather than in a GitHub issue. On the mailing list, more people are available to potentially respond to your question, and the whole community can benefit from the answers provided.

[bahho]

Thanks for the info. I'll do that.

[lock]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.