Werk #19564: Fixed Macro Processing for HTTP Headers in HTTPv2 Check Plugin

Component

Checks & agents

Title

Fixed Macro Processing for HTTP Headers in HTTPv2 Check Plugin

Date

Mar 31, 2026

Level

Trivial Change

Class

Bug Fix

Compatibility

Incompatible - Manual interaction might be required

Checkmk versions & editions

2.6.0b1 Not yet released	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT
2.5.0b3 Not yet released	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT
2.4.0p26 Not yet released	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT

When defining a 'Check HTTP web service' rule it is possible to use macros with 'Connection buildup -> Additional header lines'.

However, the new Check HTTP plugin did not process these macros as before.

With this fix, the macros are correctly processed and replaced for the headers configured in the rule.

For any configurations with existing HTTP rules containing header macros, the configurations should be activated again for the settings to apply.