fix: adjust "volume name" label for kube_persistentvolumeclaim_* #2303
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Sorry for the noise, I was trying to understand what was the problem with the commit message 🤦 Should be good now :) |
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Also update https://github.com/kubernetes/kube-state-metrics/blob/main/CHANGELOG.md Next: |
Done! 👍 |
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| | ---------------------------------------------------------- | ----------- | ------------------------------------------------------------------------------------------------------------------------- | ----------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ------------ | | |||
| | kube_persistentvolumeclaim_annotations | Gauge | Kubernetes annotations converted to Prometheus labels controlled via [--metric-annotations-allowlist](./cli-arguments.md) | | `persistentvolumeclaim`=<persistentvolumeclaim-name> <br> `namespace`=<persistentvolumeclaim-namespace> <br> `annotation_PERSISTENTVOLUMECLAIM_ANNOTATION`=<PERSISTENTVOLUMECLAIM_ANNOATION> | EXPERIMENTAL | | |||
| | kube_persistentvolumeclaim_access_mode | Gauge | | | `access_mode`=<persistentvolumeclaim-access-mode> <br>`namespace`=<persistentvolumeclaim-namespace> <br> `persistentvolumeclaim`=<persistentvolumeclaim-name> | STABLE | | |||
| | kube_persistentvolumeclaim_info | Gauge | | | `namespace`=<persistentvolumeclaim-namespace> <br> `persistentvolumeclaim`=<persistentvolumeclaim-name> <br> `storageclass`=<persistentvolumeclaim-storageclassname><br>`volumename`=<volumename><br>`volumemode`=<volumemode> | STABLE | | |||
| | kube_persistentvolumeclaim_info | Gauge | | | `namespace`=<persistentvolumeclaim-namespace> <br> `persistentvolumeclaim`=<persistentvolumeclaim-name> <br> `storageclass`=<persistentvolumeclaim-storageclassname><br>`persistentvolume`=<volumename><br>`volumemode`=<volumemode> | STABLE | | |||
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This metric is STABLE, so can't change label name.
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@CatherineF-dev what is the recommended approach here then?
I understand I can't change volumename and I will revert it.
Should I keep this label and add a new persistentvolume label (with the same value as volumename) instead?
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Have you tried updating your promQL to support join on different label names?
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As mentioned in the parent issue, AFAIK it's difficult to join metrics on different label names.
We are already relabelling the kube_persistentvolumeclaim_annotations metric to "fix" the label, but my hope with this pull request would be to bring this change upstream.
Is there a simpler way to join on different label names that would not require this change? (this discussion belongs more in the parent issue perhaps...)
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@CatherineF-dev is there any other options to move this change forward?
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/triage accepted |
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[APPROVALNOTIFIER] This PR is NOT APPROVED This pull-request has been approved by: multani The full list of commands accepted by this bot can be found here.
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Has anything changed in the release process I'm not aware of? We usually do not update the changelog within the PR. |
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This changes the name of the volume name label, reported by the `kube_persistentvolumeclaim_*` metrics, to be the same label as the one in the `kube_persistentvolume_*` metrics. This makes it easier to combine the 2 related set of metrics together to being labels and values from one metric into another.
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What this PR does / why we need it:
This changes the name of the volume name label, reported by the
kube_persistentvolumeclaim_*metrics, to be the same label as the one in thekube_persistentvolume_*metrics.This makes it easier to combine the 2 related set of metrics together to being labels and values from one metric into another.
How does this change affect the cardinality of KSM: (increases, decreases or does not change cardinality)
Does not change cardinality
Which issue(s) this PR fixes (optional, in
fixes #<issue number>(, fixes #<issue_number>, ...)format, will close the issue(s) when PR gets merged):Fixes #2288