Werk #19857: kube_pod_status: don't crash when an older status is still cached

Component

Checks & agents

Title

kube_pod_status: don't crash when an older status is still cached

Date

Apr 23, 2026

Level

Trivial Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

2.6.0b1 Not yet released	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT
2.5.0p1	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT

After upgrading a Kubernetes-monitored site, the pod Status service could become UNKNOWN with a traceback ending in KeyError: 'OOMKilled' (or another status name). This happened when the persistent check state still remembered a pod status whose name is no longer in the set the check currently tracks.

The check now tolerates an unknown cached status instead of crashing; the affected pod simply continues with the currently observed status.

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