Werk #14864: Docker monitoring: Prevent intermittent alerts due to race conditions

Component

Agent bakery

Title

Docker monitoring: Prevent intermittent alerts due to race conditions

Date

Oct 6, 2022

Level

Trivial Change

Class

New Feature

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

2.2.0b1	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.1.0p15	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)
2.0.0p30	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)

If a docker container or image is removed while the docker agent plugin is collecting data, it could lead to temporary alerts such as "no such image"/"no such container" in the node info service and "count not present in agent output" in the containers service. The agent plugin now handles such cases without producing any alerts.

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