Werk #12882: Host tags: Take tag groups into account when matching against rule conditions

Component

Checks & agents

Title

Host tags: Take tag groups into account when matching against rule conditions

Date

May 20, 2021

Level

Prominent Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

2.1.0b1	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)
2.0.0p6	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)

Up to now, the matching of host tags against rule conditions was based solely on on the tag ids. The ids of the tag groups were not taken into account. However, tag ids are not required to be unique across different tag groups. Therefore, if the same tag ids occur in multiple tag groups, ignoring the group ids can lead to wrong results.

This werk fixes this issue. Tag group ids are now taken into account when checking if a rule applies to a host, both for normal monitoring rules and BI aggregations.

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