Werk #16285: rules: match_on items must be at least of length 1

Component

REST API

Title

rules: match_on items must be at least of length 1

Date

Dec 13, 2023

Level

Trivial Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

2.3.0b1 Not yet released	Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.3.0b1	Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)

This werk addresses an issue found by our QA team on the rules collection POST endpoint

...domain-types/rule/collections/all

The match_on field requires a list of strings but didn't enforce any length. Previously, passing an empty string would provoke a crash. We now enforce a minimum string length of 1.

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