Werk #13804: KUBE: add cmk/kubernetes/label/ to host label keys

Component Checks & agents
Title KUBE: add cmk/kubernetes/label/ to host label keys
Date Apr 19, 2022
Level Trivial Change
Class Bug Fix
Compatibility Incompatible - Manual interaction might be required
Checkmk versions & editions
2.2.0b1 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.1.0b6 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)

This fix affects users who use Kubernetes host labels.

Previously, labels which are set by Kubernetes would be mapped one-to-one to Checkmk labels. This would mean that setting labels in Kubernetes could overwrite Checkmk labels, which should not be overwritten. For instance, setting the label cmk/os_family=something would incorrectly set the corresponding Checkmk label to cmk/os_family:something. With this werk, Checkmk labels are prefixed with cmk/kubernetes/label/. For example, Checkmk now sets the aforementioned label to cmk/kubernetes/label/cmk/os_family:something.

User-defined rules with old host labels need to be updated.

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