Werk #5948: docker_container_mem: Docker container specific memory checking

Component Checks & agents
Title docker_container_mem: Docker container specific memory checking
Date Apr 6, 2018
Checkmk Edition Checkmk Raw (CRE)
Checkmk Version 1.5.0b1
Level Trivial Change
Class New Feature
Compatibility Compatible - no manual interaction needed

Instead of using the default linux memory check (mem), Check_MK is now using the container specific memory check.

The main reason is that the memory information in the container is not available through /proc/meminfo as usual. The memory data is available through the kernels cgroup interface which is available in the containers context below /sys/fs/cgroup/memory/memory.stat

The features of both checks are exactly the same.

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