Unable to install module on nanoserver

[rfrerebe]

Steps to reproduce

Using windows container

docker run -it --rm mcr.microsoft.com/powershell:lts-nanoserver-1809
or
docker run -it --rm mcr.microsoft.com/powershell:lts-nanoserver-1903

Install-Module -Name Pester -Force
or any module
Install-Module -Name NetworkingDsc -Force

Expected behavior

I expect this command to work (it works on ubuntu, alpine, windowsservercore).
I expect modules to be loaded.

Actual behavior

With Pester

PS C:\> Install-Module -Name Pester -Force
WARNING: Win32Helpers: Cannot add type. Compilation errors occurred.
WARNING: Could not find a part of the path 'C:\Users\ContainerAdministrator\AppData\Local\Microsoft\Windows\PowerShell\PowerShellGet\PSRepositories.xml'
.
Install-Package: C:\program files\powershell\Modules\PowerShellGet\PSModule.psm1:9685
Line |
9685 |  … talledPackages = PackageManagement\Install-Package @PSBoundParameters
     |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     | The module 'Pester' cannot be installed or updated because the authenticode signature of the file 'Pester.psd1' is not valid.

With NetworkingDsc

PS C:\> Install-Module -Name NetworkingDsc -Force
WARNING: Win32Helpers: Cannot add type. Compilation errors occurred.
WARNING: Could not find a part of the path 'C:\Users\ContainerAdministrator\AppData\Local\Microsoft\Windows\PowerShell\PowerShellGet\PSRepositories.xml'
.
Install-Package: C:\program files\powershell\Modules\PowerShellGet\PSModule.psm1:9685
Line |
9685 |  … talledPackages = PackageManagement\Install-Package @PSBoundParameters
     |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     | The module 'NetworkingDsc' cannot be installed or updated because the authenticode signature of the file 'NetworkingDsc.psd1' is not
     | valid.

Environment data

docker info

Client:
 Debug Mode: false
 Plugins:
  buildx: Build with BuildKit (Docker Inc., v0.3.1-tp-docker)
  mutagen: Synchronize files with Docker Desktop (Docker Inc., testing)
  app: Docker Application (Docker Inc., v0.8.0)

Server:
 Containers: 0
  Running: 0
  Paused: 0
  Stopped: 0
 Images: 55
 Server Version: 19.03.8
 Storage Driver: lcow (linux) windowsfilter (windows)
  LCOW:
  Windows:
 Logging Driver: json-file
 Plugins:
  Volume: local
  Network: ics internal l2bridge l2tunnel nat null overlay private transparent
  Log: awslogs etwlogs fluentd gcplogs gelf json-file local logentries splunk syslog
 Swarm: inactive
 Default Isolation: hyperv
 Kernel Version: 10.0 19041 (19041.1.amd64fre.vb_release.191206-1406)
 Operating System: Windows 10 Pro Version 2004 (OS Build 19041.208)
 OSType: windows
 Architecture: x86_64
 CPUs: 8
 Total Memory: 15.63GiB
 Name: Desktop
 ID: 
 Docker Root Dir: C:\ProgramData\Docker
 Debug Mode: true
  File Descriptors: -1
  Goroutines: 62
  System Time: 2020-04-30T15:36:52.0489507+02:00
  EventsListeners: 1
 Registry: https://index.docker.io/v1/
 Labels:
 Experimental: true
 Insecure Registries:
  127.0.0.0/8
 Live Restore Enabled: false
 Product License: Community Engine

PS C:\> $PSVersionTable

Name                           Value
----                           -----
PSVersion                      7.0.0
PSEdition                      Core
GitCommitId                    7.0.0
OS                             Microsoft Windows 10.0.18362
Platform                       Win32NT
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0…}
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1
WSManStackVersion              3.0

##Workaround

I can get the module installed with additionnal command

Install-Module -Name Pester -Force -SkipPublisherCheck
 Import-Module ("C:\" + (Get-ChildItem -Name Pester.psm1 -Recurse -Path "C:\"))

[RDIL]

Hey! I believe you need to pass the -Scope CurrentUser parameter aswell. Can you please try that out? Thanks 😃

[rfrerebe]

Hello,

Thanks for your quick response 😄

It tried, but I did not saw any change.

PS C:\> Install-Module -Name Pester -Force -Scope CurrentUser
WARNING: Win32Helpers: Cannot add type. Compilation errors occurred.
WARNING: Could not find a part of the path 'C:\Users\ContainerAdministrator\AppData\Local\Microsoft\Windows\PowerShell\PowerShellGet\PSRepositories.xml'
.
Install-Package: C:\program files\powershell\Modules\PowerShellGet\PSModule.psm1:9685
Line |
9685 |  … talledPackages = PackageManagement\Install-Package @PSBoundParameters
     |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     | The module 'Pester' cannot be installed or updated because the authenticode signature of the file 'Pester.psd1' is not valid.

[RDIL]

Hmm. Not sure what is going on here.

[TravisEz13]

for pester, or any signed package, you must specify, -skippublishercheck the signing verification code in PowerShellGet uses an API that is not available on nanoserver.

[rfrerebe]

Thanks

[TravisEz13]

I added a known issues wiki and i'll update the readme to link to this soon:
https://github.com/PowerShell/PowerShell-Docker/wiki/Known-Issues

GitHub

PowerShell/PowerShell-Docker

Repository for building PowerShell Docker images. Contribute to PowerShell/PowerShell-Docker development by creating an account on GitHub.