왜 echook이 실행되지 않는지

$ docker run mesosphere/aws-cli echo ok
usage: aws [options] <command> <subcommand> [<subcommand> ...] [parameters]
To see help text, you can run:
...

원래 Docker file 확인

entrypoint 삭제 및 명령 실행 예시

$ docker run --entrypoint= mesosphere/aws-cli echo ok
ok

entrypoint 덮어쓰기 예

$ docker run --entrypoint='hostname' mesosphere/aws-cli
e2ff1cabebf0

그나저나 entrypoint 명령은 인자를 줄 수 없는 것 같은데?

$ docker run --entrypoint='echo ok' mesosphere/aws-cli
docker: Error response from daemon: OCI runtime create failed: container_linux.go:345: starting container process caused "exec: \"echo ok\": executable file not found in $PATH": unknown.
ERRO[0001] error waiting for container: context canceled

Docker file

ENTRYPOINT []

docker-compose에서

entrypoint: []

Original by Github issue