Werk #17334: Catch invalid "Explicit hosts" condition on save instead of crashing

Component

Setup

Title

Catch invalid "Explicit hosts" condition on save instead of crashing

Date

Oct 28, 2024

Level

Trivial Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

2.4.0b1 Not yet released	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.3.0p20	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)

When invalid host names were passed into the "Explicit hosts" condition while creating or editing a rule, Checkmk would crash with the message `Internal error: Invalid hostaddress: '{explicit hosts condition}'.

With this werk, the form will warn you that you have entered an invalid Explicit hosts condition. This allows you to fix the error without losing the rest of the entered inputs.

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