Moby: Absolute paths change with git bash on windows

[kriku]

docker run -d ubuntu /bin/sh -c "while true; do echo hello world; sleep 1; done"

using from git bash on win10 cause

C:\Program Files\Docker\Docker\Resources\bin\docker.exe: 
Error response from daemon: 
oci runtime error: 
exec: "C:/Program Files/Git/usr/bin/sh": 
stat C:/Program Files/Git/usr/bin/sh: no such file or directory.

and docker ps -a returns

CONTAINER ID        IMAGE               COMMAND                  CREATED              STATUS              PORTS               NAMES
82be3202167b        ubuntu              "C:/Program Files/Git"   About a minute ago   Created                                 jovial_engelbart

seems like git bash change all dirs from root to local one, related to git bash installation

exec this command from power shell works well

[kriku]

also it change dir when adding a data volume

docker run -d -P --name web -v /webapp training/webapp python app.py

"Mounts": [
    {
        "Name": "945c5b0f0e3b140dad75b0de9850f504c37ef8472c94bd69550bc89af4210914",
        "Source": "/var/lib/docker/volumes/945c5b0f0e3b140dad75b0de9850f504c37ef8472c94bd69550bc89af4210914/_data",
        "Destination": "C:/Program Files/Git/webapp",
        "Driver": "local",
        "Mode": "",
        "RW": true,
        "Propagation": ""
    }
],

running this command in power shell works fine

find similar issue on stack overflow

shell is mangling the file name according to these rules

[xandermar]

+1

$ winpty docker run -it -p 8065:80 -p 2262:22 drupal:7.50 /bin/bash
docker: Error response from daemon: oci runtime error: exec: "C:/Program Files/Git/usr/bin/bash": stat C:/Program Files/Git/usr/bin/bash: no such file or directory.

$ docker version
Client:
Version: 1.12.0
API version: 1.24
Go version: go1.6.3
Git commit: 8eab29e
Built: Thu Jul 28 21:15:28 2016
OS/Arch: windows/amd64

Server:
Version: 1.12.0
API version: 1.24
Go version: go1.6.3
Git commit: 8eab29e
Built: Thu Jul 28 21:15:28 2016
OS/Arch: linux/amd64

COMMAND
"C:/Program Files/Git"

... on Windows 10 Pro

[caylorme]

Getting the same error on Windows 10 Right now.

me@my-pc MINGW64 /z
$ docker run -it ubuntu /bin/bash
C:\Program Files\Docker\Docker\Resources\bin\docker.exe: Error response from daemon: oci runtime error: exec: "C:/Program Files/Git/usr/bin/bash": stat C:/Program Files/Git/usr/bin/bash: no such file or directory.

$ docker info
Containers: 23
 Running: 0
 Paused: 0
 Stopped: 23
Images: 18
Server Version: 1.12.1
Storage Driver: aufs
 Root Dir: /var/lib/docker/aufs
 Backing Filesystem: extfs
 Dirs: 67
 Dirperm1 Supported: true
Logging Driver: json-file
Cgroup Driver: cgroupfs
Plugins:
 Volume: local
 Network: null bridge overlay host
Swarm: inactive
Runtimes: runc
Default Runtime: runc
Security Options: seccomp
Kernel Version: 4.4.20-moby
Operating System: Alpine Linux v3.4
OSType: linux
Architecture: x86_64
CPUs: 2
Total Memory: 1.942 GiB
Name: moby
ID: WKOX:HURI:52OJ:XGQG:3XP5:4VQ3:DPRC:RHEA:HNX5:UU2X:JTKM:42DT
Docker Root Dir: /var/lib/docker
Debug Mode (client): false
Debug Mode (server): true
 File Descriptors: 14
 Goroutines: 23
 System Time: 2016-09-29T04:15:05.3298145Z
 EventsListeners: 0
Registry: https://index.docker.io/v1/
Insecure Registries:
 127.0.0.0/8

Works fine when using the normal Windows command prompt, just not with Git-Bash

[thaJeztah]

Yes, that's mingw trying to be smart, and converting paths. It's not a bug in Docker, but the way mingw handles these paths. Here is some more information about that "feature"; http://www.mingw.org/wiki/Posix_path_conversion. Prefixing the path with a double slash (//bin/bash) should prevent this, or you can set MSYS_NO_PATHCONV=1, see http://stackoverflow.com/questions/7250130/how-to-stop-mingw-and-msys-from-mangling-path-names-given-at-the-command-line#34386471

(but I'm not on Windows myself, so cannot check).

[anderejd]

Posted a workaround here: https://github.com/docker/toolbox/issues/673