Specifying named docker volume causes includes invalid characters problem

[suntong]

• I want to run docker in Git Bash under Windows.
• If use docker run --rm -ti -v my-vol:/myvol my_volume_test:latest under Cmd/Powershell, all is good.
• But to use docker under Git Bash, I need to prefix the command with winpty, that's where the problem comes in:

     $ winpty docker run --rm -ti -v my-vol:/myvol my_volume_test:latest
     C:/Program Files/Docker/Docker/resources/bin/docker.exe: Error response from daemon: create my-vol;C: "my-vol;C" 
     includes invalid characters for a local volume name, only "[a-zA-Z0-9][a-zA-Z0-9_.-]" are allowed. If you intended
     to pass a host directory, use absolute path.
     See 'C:/Program Files/Docker/Docker/resources/bin/docker.exe run --help'.

I tried to escape the ':' character, but that didn't work either:

$ winpty docker run --rm -ti -v my-vol\:/myvol my_volume_test:latest
C:/Program Files/Docker/Docker/resources/bin/docker.exe: Error response from daemon: create my-vol;C: "my-vol;C" i
ncludes invalid characters for a local volume name, only "[a-zA-Z0-9][a-zA-Z0-9_.-]" are allowed. If you intended
to pass a host directory, use absolute path.
See 'C:/Program Files/Docker/Docker/resources/bin/docker.exe run --help'.

[odupuy]

I have similar issue

Running a makefile using the "terminal" of IntelliJ using git bash on W10 and Docker desktop.
This was working without winpty under W7 and Docker toolbox.
The current folder (pwd) is /c/Users/1005xxx/myfolder
The error is the same under Git bash (without IntelliJ)

winpty docker run --user 111111:222222 -ti -v "/c/Users/1005xxx/myfolder:/work" containername prototool generate --walk-timeout 30s
=>
docker: Error response from daemon: OCI runtime create failed: invalid mount {Destination:\Programs\Git\work Type:bind Source:/run/desktop/mnt/host/c/Users/1005xxx/myfolder;C Options:[rbind rprivate]}: mount destination \Programs\Git\work not absolute: unknown.
make: *** [Makefile:90: gen-go-proto] Error 125

If I remove winpty the error is the same under IntelliJ.

Under bash directly, it is different
/c/Programs/Docker/Docker/resources/bin/docker run --user 111111:222222 -ti -v "/c/Users/1005xxxmyfolder:/work" mycontainer prototool generate --walk-timeout 30s
=>
the input device is not a TTY. If you are using mintty, try prefixing the command with 'winpty

The ugly alternative for now is to do it directly in a good auld CMD and to forget the makefile
"C:\Programs\Docker\Docker\resources\bin\docker.exe" run --user 111111:222222 -ti -v "/c/Users/1005xxx/myfolder:/work" containername prototool generate --walk-timeout 30s

[k-takata]

It's not a winpty issue. MSYS2 automatically converts a Unix-style path to a Windows-style path when executing a non-msys2 program. And it can be controlled by the MSYS2_ARG_CONV_EXCL environment variable.
See https://www.msys2.org/wiki/Porting/#filesystem-namespaces for detail.

[suntong]

Oh, thanks a lot @k-takata!

@odupuy, I don't have the environment any more, would you test it out and let us know please?

Basically you need to run the following two commands:

winpty docker run --user 111111:222222 -ti -v "/c/Users/1005xxx/myfolder:/work" containername prototool generate --walk-timeout 30s
MSYS2_ARG_CONV_EXCL='*' winpty docker run --user 111111:222222 -ti -v "/c/Users/1005xxx/myfolder:/work" containername prototool generate --walk-timeout 30s

and let us know the results.

Thanks

[odupuy]

Thanks folks.

I modified my makefile, the variable MSYS... is set, I can see it logged but the error is the same aka

docker: Error response from daemon: OCI runtime create failed: invalid mount {Destination:\Programs\Git\work Type:bind Source:/run/desktop/mnt/host/c/Users/1005xxx/myfolder;C Options:[rbind rprivate]}: mount destination \Programs\Git\work not absolute: unknown.
make: *** [Makefile:90: gen-go-proto] Error 125

$ make --version
GNU Make 4.3
Built for Windows32
Copyright (C) 1988-2020 Free Software Foundation, Inc.
$ uname -o
Msys
MYNAME@c-BP5D7C3 MINGW64 ~/go/gitlab.protectv.local/dpaas/slingshot (master)
$ uname -a
MINGW64_NT-10.0-18363 MYPC 3.1.7-340.x86_64 2021-03-26 22:17 UTC x86_64 Msys
msys_version := 3 ;

[k-takata]

What was the result when you ran MSYS2_ARG_CONV_EXCL='*' winpty docker run --user 111111:222222 -ti -v "/c/Users/1005xxx/myfolder:/work" containername prototool generate --walk-timeout 30s from bash?