Powershell missing from 1709-based build images

[jbogard]

Steps to reproduce the issue

(e.g. copy your Dockerfile or docker-compose.yml file here) The 1709-based build images don't have powershell installed, which means I can't run my build inside of the build images:

docker run -it microsoft/aspnetcore-build:2.0 cmd

Then inside the build image:

Microsoft Windows [Version 10.0.16299.192]
(c) 2017 Microsoft Corporation. All rights reserved.

C:\>powershell
'powershell' is not recognized as an internal or external command,
operable program or batch file.

C:\>

Nanoserver starting with 1709 no longer includes Powershell, which makes sense, but I'm now strictly limited to cmd-based builds inside my build container (or I install Powershell as part of my container build).

Expected behavior

Powershell to be there like it is in the sac2016 images. You could use the microsoft/powershell:nanoserver images as the base instead of just plain nanoserver ones.

Actual behavior

It is not.

[natemcmaster]

So, just wanted to let you know we saw this and are discussing it. I don't have a decision yet, but here is some of my thinking:

My initial reaction was to close this. We don't want to depend on PowerShell. It adds to our servicing/patching burden, adds bloat some users don't need, and powershell.exe isn't something we can install anyways. Personally, I would want powershell in my images too though, so I started looking into how hard it is to install pwsh.exe (Powershell 6) on your own. It's a pain because there is no way to download/unzip from nanoserver-1709, so you have to use windowservercore in a multi-stage build. But, I'm optimistic this will be less of a problem soon: https://blogs.technet.microsoft.com/virtualization/2017/12/19/tar-and-curl-come-to-windows/.

Anyways, we're still discussing and considering the tradeoffs here.

[jbogard]

Ah, yes Powershell 6 would make more sense. Thanks for the update!

And yes, I went down the path of building my own image with pwsh.exe and it’s not super easy.

On Fri, Feb 16, 2018 at 11:56 AM Nate McMaster notifications@github.com wrote:

So, just wanted to let you know we saw this and are discussing it. I don't have a decision yet, but here is some of my thinking:

My initial reaction was to close this. We don't want to depend on PowerShell. It adds to our servicing/patching burden, adds bloat some users don't need, and powershell.exe isn't something we can install anyways. Personally, I would want powershell in my images too though, so I started looking into how hard it is to install pwsh.exe (Powershell 6) on your own. It's a pain because there is no way to download/unzip from nanoserver-1709, so you have to use windowservercore in a multi-stage build. But, I'm optimistic this will be less of a problem soon: https://blogs.technet.microsoft.com/virtualization/2017/12/19/tar-and-curl-come-to-windows/ .

Anyways, we're still discussing and considering the tradeoffs here.

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/aspnet/aspnet-docker/issues/362#issuecomment-366310134, or mute the thread https://github.com/notifications/unsubscribe-auth/AAGYMl4xvqd8LJddgOg3hV8wAWgTsVkJks5tVcEvgaJpZM4R848O .

[natemcmaster]

Hey @jbogard, I'm going to close this as this isn't something we plan to add to the aspnetcore images. In fact, we don't plan on providing any new microsoft/aspnetcore-build images in the near future. We are merging it with the microsoft/dotnet:sdk images. See https://github.com/aspnet/Announcements/issues/298.

If you would still like this, you can open this request on https://github.com/dotnet/dotnet-docker.

[jbogard]

Thanks! In any case pwsh.exe would make more sense.

On Mon, Apr 2, 2018 at 5:54 PM Nate McMaster notifications@github.com wrote:

Closed #362 https://github.com/aspnet/aspnet-docker/issues/362.

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[MichaelSimons]

FYI - there is already an issue tracking this for the microsoft/dotnet images - https://github.com/dotnet/dotnet-docker/issues/360

[tugberkugurlu]

or I install Powershell as part of my container build

Any guidance on How I should go about doing this under microsoft/dotnet:2.0-sdk-nanoserver-1709 image?

[MichaelSimons]

@tugberkugurlu - You can follow what is done in the Dockerfile used to produce the microsoft/powershell images.