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Docker task fails to mount volume on Hosted Windows Container #9518

DannyMeister opened this issue Feb 7, 2019 · 2 comments

Docker task fails to mount volume on Hosted Windows Container #9518

DannyMeister opened this issue Feb 7, 2019 · 2 comments


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@DannyMeister DannyMeister commented Feb 7, 2019


Azure Pipelines

Account: DannyMeister/DannyMeisterBlog-CI
Build definition: DannyMeisterBlog-CI
Build number: 20190207.5

Agent: Hosted Windows Container

Issue Description

I am trying to use the Docker@1 task via yaml to run the jekyll/builder container to build a static website. The container requires mounting a volume to the site source code. I have mounted using the $(Build.SourcesDirectory) built in parameter. However, I get an invalid volume specification error from docker. Here is my full yaml for the task:

- task: Docker@1
  displayName: Run Jekyll
    command: run
    imageName: 'jekyll/builder:latest'
    volumes: $(Build.SourcesDirectory):/srv/jekyll
    containerCommand: 'jekyll build --future'
    detached: false

Here is the command and the error I get on Hosted Windows Container:

2019-02-07T06:03:44.0976110Z [command]"C:\Program Files\Docker\docker.exe" run -d --restart no -v D:\_work\1\s:/srv/jekyll jekyll/builder:latest jekyll build --future
2019-02-07T06:03:48.7128333Z C:\Program Files\Docker\docker.exe: Error response from daemon: invalid volume spec "D:\\_work\\1\\s:/srv/jekyll": invalid volume specification: 'D:\_work\1\s:\srv\jekyll'.
2019-02-07T06:03:48.7129149Z See 'C:\Program Files\Docker\docker.exe run --help'.
2019-02-07T06:03:48.7256842Z ##[error]C:\Program Files\Docker\docker.exe failed with return code: 125

The exact same yaml step works fine if I simply switch the agent pool to Hosted Ubuntu:

2019-02-07T06:16:21.4176628Z [command]/usr/bin/docker run -d --restart no -v /home/vsts/work/1/s:/srv/jekyll jekyll/builder:latest jekyll build --future
2019-02-07T06:16:28.2458701Z 6d3afd3d5b63c44366c7f7bdec14f8ea3753f6d0ae91647eb99ffd615c653649
2019-02-07T06:16:30.1603674Z ##[section]Finishing: Run Jekyll

I can run this same container without problem locally on my Windows 10 PC. Linux isn't a viable workaround for my pipeline, because I have another task which is not compatible.

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@bansalaseem bansalaseem commented Apr 15, 2019

@DannyMeister Can you please share whether you still are running into it or weable to resolve it?

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@bansalaseem bansalaseem commented May 21, 2019

I am closing it as there is no response from the customer.

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