Werk #19447: Kubernetes (OpenShift): Fix absence of Prometheus metrics data coming from newer Thanos versions
| Component | Checks & agents | ||||||
| Title | Kubernetes (OpenShift): Fix absence of Prometheus metrics data coming from newer Thanos versions | ||||||
| Date | Apr 1, 2026 | ||||||
| Level | Trivial Change | ||||||
| Class | Bug Fix | ||||||
| Compatibility | Compatible - no manual interaction needed | ||||||
| Checkmk versions & editions |
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When monitoring OpenShift and using the "Use data from OpenShift" option, some metrics might have disappeared, depending on which version of OpenShift is being monitored (and more specifically, which version of Thanos it is using to provide Prometheus data).
Newer Thanos versions introduced a schema change which broke how Checkmk parsed the API responses.
This Werk accounts for the schema changes and restores these missing metrics.
In particular, this primarily affected the "Memory resources" and "CPU resources" services, which when affected by this bug, would continue to show request and limit values from the Kubernetes API server, but would not show actual consumption data or utilization percentages.
This also meant that alerts configured on the consumption and utilization would not be triggered.
No user action is required to make use of this fix.