Werk #18132: Fix timeperiod validation for imported calendars

Component

Setup

Title

Fix timeperiod validation for imported calendars

Date

Aug 27, 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)
2.4.0p11	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)

When updating Checkmk, the config validation would fail with a message similar to the following when validating valid time periods created by importing a calendar:

The following mk files had issues during the validation:

    etc/check_mk/conf.d/wato/timeperiods.mk..................... Failed
    Invalid timeperiods:
    ['<time_period_name>: Missing time periods']

With this Werk, we adapt the validation to no longer complain for these valid time periods

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