Unable to strace in container with docker 1.10

[tmds]

Using strace in a container gives me an 'Operation not permitted' error.

strace: test_ptrace_setoptions_followfork: PTRACE_TRACEME doesn't work: Operation not permitted

[GordonTheTurtle]

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[tmds]

Not a bug, it's a feature!
https://blog.docker.com/2016/02/docker-engine-1-10-security/

[krzkaczor]

To turn off security features use:

docker run --security-opt seccomp:unconfined ...

[SunnySmilez]

docker run -t -i --cap_add=ALL container_name /bin/bash
or
docker run -t -i --privileged container_name /bin/bash