Error: failed to create containerd container: rootpath on mountPath C:

[nimblenitin]

Describe the bug
I am getting error on aks. Is there any workaorund for it?

Error: failed to create containerd container: rootpath on mountPath C:\Windows\SystemTemp\ctd-volume2059323837, volume c:\jsreport: CreateFile C:\Windows\SystemTemp\ctd-volume2059323837\c:: The filename, directory name, or volume label syntax is incorrect.

I am hosting nodejs app on windows node, repeatedly getting above.

Dockerfile-

FROM jsreport/jsreport:4.7.0-windowsservercore

WORKDIR /app

COPY .npmrc ./
COPY package.json ./

COPY /shared/customStudioAuthentication.js /app/node_modules/@jsreport/jsreport-authentication/lib/main.js

RUN npm install

COPY . ./

EXPOSE 5488

USER ContainerAdministrator # Or create a custom user as necessary

CMD ["node", "server.js"]

  volumes:
    - name: jsreport-volume
      hostPath:
        path: C:\jsreport
        type: DirectoryOrCreate
    - name: systemtemp
      hostPath:
        path: C:\Windows\SystemTemp
        type: DirectoryOrCreate

    volumeMounts:
    - mountPath: C:\jsreport
      name: jsreport-volume
    - mountPath: C:\Windows\SystemTemp
      name: systemtemp

To Reproduce
Steps to reproduce the behavior:

1. Run command '...'
2. See error

Expected behavior
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Screenshots
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Environment (please complete the following information):

• CLI Version [e.g. 3.22]
• Kubernetes version [e.g. 1.24.3]
• CLI Extension version [e.g. 1.7.5] if applicable
• Browser [e.g. chrome, safari] is applicable

Additional context
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[microsoft-github-policy-service]

@allyford, @thecloudtaylor would you be able to assist?

[timmy-wright]

Hey, I had a quick look at this and my initial guess is that the mountPath in your YAML file is incorrect.

Try using /c/jsReport and /c/windows/SystemTemp instead of c:\jsReport and c:\windows\SystemTemp

From memory, "" is a special character in YAML. So if the /c/... approach doesn't work, then try enclosing the mountPath in quotes and escaping it. Like this:

mountPath: "c:\jsReport"

We have documentation about using mountPath in Windows containers here: https://learn.microsoft.com/en-us/azure/aks/windows-vs-linux-containers