linux - Changing /proc/sys/kernel/core_pattern file inside docker container

Question

How can i change /proc/sys/kernel/core_pattern file inside the docker container with out privileged mode? Are there any flags to be passed to docker daemon or docker run or anything related to Dockerfile?

Answer 1

The kernel does not support per-container patterns. There is a patch for this, but it is unlikely to go in any time soon. The basic problem is that core patterns support piping to a dedicated process which is spawned for this purpose. But the code spawning it does not know how to handle containers just yet. For some reason a simplified pattern handling which requires a target file was not deemed acceptable.