[JENKINS-51443] Wrong mount point spec for Windows Containers in Docker

It seems that ":z" volume bind mount flag in docker is not suported for windows containers.

For jenkinsfile:

pipeline {

    agent {

docker { image 'mksondej/aspnet-node-msbuild' }

    }

    stages {

stage('Test') {

    steps {

powershell 'ls'

    }

}

    }

}

Here's what my pipeline tries to execute:

 

docker run -t -d -u 18:18 -w "C:\Program Files (x86)\Jenkins\workspace\test1_master-X2GYJHOEIWFTSVMPO3GB3GYF3NB4R7IFICRXKGCY7NVNWOUOC5QA" -v "C:\Program Files (x86)\Jenkins\workspace\test1_master-X2GYJHOEIWFTSVMPO3GB3GYF3NB4R7IFICRXKGCY7NVNWOUOC5QA:C:\Program Files (x86)\Jenkins\workspace\test1_master-X2GYJHOEIWFTSVMPO3GB3GYF3NB4R7IFICRXKGCY7NVNWOUOC5QA:rw,z" -v "C:\Program Files (x86)\Jenkins\workspace\test1_master-X2GYJHOEIWFTSVMPO3GB3GYF3NB4R7IFICRXKGCY7NVNWOUOC5QA@​tmp:C:\Program Files (x86)\Jenkins\workspace\test1_master-X2GYJHOEIWFTSVMPO3GB3GYF3NB4R7IFICRXKGCY7NVNWOUOC5QA@​tmp:rw,z" -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** mksondej/aspnet-node-msbuild cat

 

and the result is:

 

java.io.IOException: Failed to run image 'mksondej/aspnet-node-msbuild'. Error: docker: Error response from daemon: invalid bind mount spec "C:\\Program Files (x86)\\Jenkins\\workspace\\test1_master-X2GYJHOEIWFTSVMPO3GB3GYF3NB4R7IFICRXKGCY7NVNWOUOC5QA:C:\\Program Files (x86)\\Jenkins\\workspace\\test1_master-X2GYJHOEIWFTSVMPO3GB3GYF3NB4R7IFICRXKGCY7NVNWOUOC5QA:rw,z": invalid volume specification: 'C:\Program Files (x86)\Jenkins\workspace\test1_master-X2GYJHOEIWFTSVMPO3GB3GYF3NB4R7IFICRXKGCY7NVNWOUOC5QA:C:\Program Files (x86)\Jenkins\workspace\test1_master-X2GYJHOEIWFTSVMPO3GB3GYF3NB4R7IFICRXKGCY7NVNWOUOC5QA:rw,z'

It seems that running windows containers in the pipeline is currently impossible?

By manually fiddling with the command above I've found out that without ":z" ("rw" can stay) it would work properly. I've tried to make a crude workaround by making a bat cmd somewhere in my PATH which would make a simple string replacement, but it only worked from my or other user's command line. The pipeline seems to run docker.exe directly.

Any wokaround would be more than welcome, thanks

 

---
Originally reported by mksondej, imported from: Wrong mount point spec for Windows Containers in Docker

• status: Open
  
• priority: Major
  
• component(s): docker-commons-plugin, docker-workflow-plugin
  
• resolution: Unresolved
  
• votes: 7
  
• watchers: 7
  
• imported: 2025-12-07
  

Raw content of original issue

It seems that ":z" volume bind mount flag in docker is not suported for windows containers.


For jenkinsfile:



pipeline {

    agent {

        docker { image 'mksondej/aspnet-node-msbuild' }

    }

    stages {

        stage('Test') {

            steps {

                powershell 'ls'

            }

        }

    }

}



Here's what my pipeline tries to execute:


 



docker run -t -d -u 18:18 -w "C:\Program Files (x86)\Jenkins\workspace\test1_master-X2GYJHOEIWFTSVMPO3GB3GYF3NB4R7IFICRXKGCY7NVNWOUOC5QA" -v "C:\Program Files (x86)\Jenkins\workspace\test1_master-X2GYJHOEIWFTSVMPO3GB3GYF3NB4R7IFICRXKGCY7NVNWOUOC5QA:C:\Program Files (x86)\Jenkins\workspace\test1_master-X2GYJHOEIWFTSVMPO3GB3GYF3NB4R7IFICRXKGCY7NVNWOUOC5QA:rw,z" -v "C:\Program Files (x86)\Jenkins\workspace\test1_master-X2GYJHOEIWFTSVMPO3GB3GYF3NB4R7IFICRXKGCY7NVNWOUOC5QA@tmp:C:\Program Files (x86)\Jenkins\workspace\test1_master-X2GYJHOEIWFTSVMPO3GB3GYF3NB4R7IFICRXKGCY7NVNWOUOC5QA@tmp:rw,z" -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** -e ******** mksondej/aspnet-node-msbuild cat





 


and the result is:


 



java.io.IOException: Failed to run image 'mksondej/aspnet-node-msbuild'. Error: docker: Error response from daemon: invalid bind mount spec "C:\\Program Files (x86)\\Jenkins\\workspace\\test1_master-X2GYJHOEIWFTSVMPO3GB3GYF3NB4R7IFICRXKGCY7NVNWOUOC5QA:C:\\Program Files (x86)\\Jenkins\\workspace\\test1_master-X2GYJHOEIWFTSVMPO3GB3GYF3NB4R7IFICRXKGCY7NVNWOUOC5QA:rw,z": invalid volume specification: 'C:\Program Files (x86)\Jenkins\workspace\test1_master-X2GYJHOEIWFTSVMPO3GB3GYF3NB4R7IFICRXKGCY7NVNWOUOC5QA:C:\Program Files (x86)\Jenkins\workspace\test1_master-X2GYJHOEIWFTSVMPO3GB3GYF3NB4R7IFICRXKGCY7NVNWOUOC5QA:rw,z'





It seems that running windows containers in the pipeline is currently impossible?


By manually fiddling with the command above I've found out that without ":z" ("rw" can stay) it would work properly. I've tried to make a crude workaround by making a bat cmd somewhere in my PATH which would make a simple string replacement, but it only worked from my or other user's command line. The pipeline seems to run docker.exe directly.


Any wokaround would be more than welcome, thanks 


 

environment

```
Jenkins ver. 2.107.3

installed from the official installer, not running in any VM nor docker.

Single node setup with default config.

os.arch x86

os.name Windows Server 2016

os.version 10.0

Plugins:

docker-commons 1.13 true

docker-workflow 1.17 true
```