[release-v1.77] Adjust the Prometheus service discovery for the etcd pods #8372
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The labels on the etcd service changed with gardener/etcd-druid#559 that was introduced in gardener#8299. The `app` and `role` labels are no longer present on the service, but they are still available on the pods. So by using the pod's labels for the service discovery, we can restore the previous behavior. https://prometheus.io/docs/prometheus/latest/configuration/configuration/#endpoints Co-authored-by: Istvan Zoltan Ballok <istvan.zoltan.ballok@sap.com> Co-authored-by: Jeremy Rickards <jeremy.rickards@sap.com>
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[APPROVALNOTIFIER] This PR is APPROVED This pull-request has been approved by: acumino The full list of commands accepted by this bot can be found here. The pull request process is described here
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This is an automated cherry-pick of #8371
/assign acumino