Why strace doesn't work in DockerWhile editing the capabilities page of the how containers work zine, I found myself trying to explain why strace doesn’t work in a Docker container. The problem here is – if I run strace in a Docker container on my laptop, this happens: $ docker run -it ubuntu:18.04 /bin/bash $ # ... install strace ... root@e27f594da870:/# strace ls strace: ptrace(PTRACE_TRACEME, ...): Operation not permitted stra
