"The shell form prevents any CMD or run command line arguments from being used" is wrong

[safinaskar]

https://docs.docker.com/engine/reference/builder/ contains this phrase: "The shell form prevents any CMD or run command line arguments from being used". This is not true. Consider this dockerfile:

FROM debian:bullseye
ENTRYPOINT for I in "$@"; do printf '%s\n' "[$I]"; done

I run it so:

sudo docker build -t rep .
sudo docker run -it rep a b

And I see output [b]. So, command line arguments are passed despite shell form.

So, fix the docs. Also double-check everything related to interaction between ENTRYPOINT, CMD and command-line arguments

[docker-robott]

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[safinaskar]

/lifecycle frozen

[safinaskar]

@crazy-max , @dvdksn , please, reopen. (How to reopen bugs here?)

The bug is still not fixed.

You just changed documentation to say: "The shell form of ENTRYPOINT ignores any CMD or docker run command line
arguments". This is not true. And reproducer from my original bug report proves this. The word "ignores" suggests that the command line arguments are dropped, i. e. shell doesn't see them. But, as my reproducer shows, shell actually sees them: they are still available if one uses "$@" or similar.

Please, this time mention my Github username in your PR