Werk #18316: OTel: OMD service resumes default behavior when user configuration is removed

Component

Checks & agents

Title

OTel: OMD service resumes default behavior when user configuration is removed

Date

Nov 10, 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)
2.4.0p16 Not yet released	Checkmk Cloud (CCE), Checkmk MSP (CME)

If no custom OpenTelemetry Collector configuration is provided, the otel service should automatically run using Checkmk’s default fallback configuration — as long as OPENTELEMETRY_COLLECTOR is enabled.

Previously, if you added a custom otel-collector configuration (for example, defining a receiver) and then removed it, the service would stop running entirely.

With this change, the otel-collector service now continues to run using default fallback configuration after a custom configuration is removed.

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