Werk #17876: Ruleset API: Actually use validation of SimpleLevels and Levels

Component	Checks & agents
Title	Ruleset API: Actually use validation of SimpleLevels and Levels
Date	Mar 28, 2025
Level	Trivial Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	2.5.0b1 Not yet released Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME) 2.4.0b4 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME) 2.3.0p31 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)

This change is relevant for plugin developers using the custom_validate option for Levels and SimpleLevels.

Previously, validation functions defined via SimpleLevels.custom_validate and Levels.custom_validate were not executed, resulting in no validation for levels specified with Ruleset API v1. custom_validate functions defined for FormSpecs in the form_spec_template field worked as intended, however.

No shipped rules are affected by this.

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