docker command 'run' doesn't work

[korabelnikov]

$ docker run -t -i nvidia/digits /bin/bash
usage: gunicorn [OPTIONS] APP_MODULE
gunicorn: error: No application module specified.

i have try use 'nvidia-docker' instead 'docker', it have no effect.

Others command, like start, exec works properly.

Output of docker version:
Client:
Version: 1.12.1
API version: 1.24
Go version: go1.7.1
Git commit: 23cf638
Built:
OS/Arch: linux/amd64

Server:
Version: 1.12.1
API version: 1.24
Go version: go1.7.1
Git commit: 23cf638
Built:
OS/Arch: linux/amd64

Output of docker info:
Containers: 43
Running: 3
Paused: 0
Stopped: 40
Images: 17
Server Version: 1.12.1
Storage Driver: btrfs
Build Version: Btrfs v4.7.1
Library Version: 101
Logging Driver: json-file
Cgroup Driver: cgroupfs
Plugins:
Volume: nvidia-docker local
Network: null host bridge overlay
Swarm: inactive
Runtimes: runc
Default Runtime: runc
Security Options: seccomp
Kernel Version: 4.4.15-gentoo
Operating System: Gentoo/Linux
OSType: linux
Architecture: x86_64
CPUs: 24
Total Memory: 251.8 GiB
Name: Beelzebub
ID: CYUG:T3FX:PPBU:HOPF:LCKV:5WWS:DUJJ:ICHZ:2O3F:EMKP:QFPX:5BOB
Docker Root Dir: /var/lib/docker
Debug Mode (client): false
Debug Mode (server): false
Registry: https://index.docker.io/v1/
Insecure Registries:
127.0.0.0/8

Additional environment details (AWS, VirtualBox, physical, etc.):

I'm using nvidia-digits image. Host OS is gentoo.

[thaJeztah]

This is because the nvidia/digits image has an entrypoint: https://github.com/NVIDIA/nvidia-docker/blob/master/ubuntu-14.04/digits/4.0/Dockerfile#L24

So running docker run -it nvidia/digits /bin/bash will result in /bin/bash being passed as arguments to the entrypoint (./digits-server), and this will be executed:

/usr/share/digits/digits-server /bin/bash

This is not a bug in Docker, but incorrect use of the nvidia/digits image. I suggest to read the documentation of those images to get more information about how to run them https://github.com/NVIDIA/nvidia-docker

I'll close this issue, because this is not a bug, but feel free to comment after I closed

[korabelnikov]

@thaJeztah Thanks.
but how i can execute my own command with docker run ?

[thaJeztah]

Resetting an entrypoint can be tricky, but will be made simpler in docker 1.13, see #23718, and #23498 (I think there's a workaround mentioned there) Alternatively;

• start the container with the regular command, and use docker exec -it <container name> bash to get a shell in the container
• if you want to create a custom version of the image with a different command, extend the image by creating a Dockerfile that uses FROM nvidia/digits that resets the entrypoint