Werk #14067: REST-API host_config: addition of validation for host labels

Component

REST API

Title

REST-API host_config: addition of validation for host labels

Date

Apr 26, 2022

Level

Trivial Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

2.2.0b1	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.1.0p4	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)
2.0.0p26	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)

Host labels take the key:value format where both key and value are of the string type. In the previous version, it was possible to specify non valid entries such as a list of strings as the REST API did not perform validation for the labels. This consequently led to other problems as Checkmk attempted to process the label values expecting a string. This werk introduces validation for the host labels in order to prevent such instances.

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