Werk #18708: agent_kube: relax annotation value character restriction

Component

Checks & agents

Title

agent_kube: relax annotation value character restriction

Date

Oct 1, 2025

Level

Trivial Change

Class

New Feature

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)
2.4.0p14 Not yet released	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)

All characters are now allowed in annotation values except ':' (colon). Annotations containing this character or exceeding 256 characters in length will be ignored. Prior to this werk, annotation values were subject to overly strict validation rules, which limited their usability.

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