docker-compose fails to mount volumes on docker-machine (linux) host.

[JettJones]

Expected behavior

Using an existing docker-compose file, which works in docker 1.12 - I should be able to mount a volume from the docker host. The larger use case is to mount the docker-socket, for running something like registrator or logspout, but this issue reproduces with any bind mount.

Actual behavior

It seems that docker-compose for windows is doing some windows-specific path mangling, which fails because my docker host is a linux VM run by docker-machine.

This is the error returned:

ERROR: for dock  Cannot create container for service dock: create \tmp: "\\tmp" includes invalid characters for a local volume name, only "[a-zA-Z0-9][a-zA-Z0-9_.-]" are allowed. If you intented to pass a host directory, use absolute path
ERROR: Encountered errors while bringing up the project.

Information

>docker-compose --version
docker-compose version 1.10.0, build 4bd6f1a0

• a reproducible case if this is a bug, Dockerfiles FTW

version: '2'
services:
  dock:
    image: alpine
    volumes:
      - "/tmp:/mounted_tmp"
    tty: true

• host distribution and version (Windows version, build number, etc)
  windows 10 pro, Version 1607 (OS Build 14292.693)

>docker-machine --version
docker-machine version 0.9.0, build 15fd4c7

within the docker-machine install:

Boot2Docker version 1.13.0, build HEAD : 5b8d9cb - Wed Jan 18 18:50:40 UTC 2017
Docker version 1.13.0, build 49bf474

Steps to reproduce the behavior

1. docker-compose -f {the_file_above} up

[friism]

You should make sure that the environment variable COMPOSE_CONVERT_WINDOWS_PATHS is false: https://github.com/docker/compose/releases/tag/1.10.0

If you encounter further problems, please follow up on the docker compose repo (or possibly on Toolbox or Boot2docker).

[JettJones]

Thanks, with the name of the setting, I found a tracking issue already on compose: docker/compose#4240

Setting the value to false or 0 still fails with the same error about the volume name. 1 and true are what the setting needs to be. (Seemingly the name is backwards)

set COMPOSE_CONVERT_WINDOWS_PATHS=1

Also toolbox is Legacy and doesn't have a 1.13 release.

[friism]

@JettJones there's a 1.13 toolbox release: https://github.com/docker/toolbox/releases/tag/v1.13.0

[JettJones]

oh, I didn't realize - both of the download links I found were for 1.12.6, so combined with the Legacy tag in the docs, I assumed that meant no more updates.

https://www.docker.com/products/docker-toolbox
https://docs.docker.com/toolbox/toolbox_install_windows/

[docker-robott]

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