Werk #18104: OTel: Fix hostname computation when using different rules

Component

Checks & agents

Title

OTel: Fix hostname computation when using different rules

Date

Jun 3, 2025

Level

Trivial Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

2.5.0b1 Not yet released	Checkmk Cloud (CCE), Checkmk MSP (CME)
2.4.0p5	Checkmk Cloud (CCE), Checkmk MSP (CME)

When multiple rules were defined in a "Host name computation" for an Open Telemetry receiver endpoint or Prometheus scrape config, they were combined into one. Instead, the first one matching rule is now applied.

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