Werk #16627: kube_persistent_volume_claim: resolve KeyError crash when Volume parameters are configured

Component

Checks & agents

Title

kube_persistent_volume_claim: resolve KeyError crash when Volume parameters are configured

Date

Apr 3, 2024

Level

Trivial Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

2.4.0b1 Not yet released	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.3.0b4	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.2.0p26	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)

Before this update, configuring 'Volume parameters' in the PVC check plugin led to a crash. This issue arose because the plugin was not designed to process trend size-related levels, which, however, were anticipated by the general filesystem function handler shared among filesystem-related check plugins. To resolve this, the general function has been modified to bypass trend computation when a trend rule is not set, a scenario always applicable to the PVC check plugin.

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