Run PowerShell Core 6.x or 7.x script from Bamboo script task

[Vitalii C_]

Hello, colleagues.

Is there any way to run  PowerShell Core 6 or 7 from  a standard Bamboo script task on a  Bamboo agent that works on Windows Server 2016 LTSC (I guess same will apply to Windows Server 2019)?

I went through task documentation and I discovered that there's no mention about support for these PowerShell versions.

PowerShell 6 and 7 are more robust and have lots of improvements if we compare them with PowerShell base 5.1 (which was shipped in windows server 2016). 

However, Microsoft had changed significantly a way of installation and even PowerShell.exe named differently:

• PowerShell.exe is now pwsh.exe;
• Different folders are in use for modules and profiles then for the 5.1, etc.;

https://docs.microsoft.com/en-us/powershell/scripting/install/installing-powershell-core-on-windows?view=powershell-7.1

It looks like it won't work by default.

So, any ideas or road maps about this?

[Alistair.Mackay · Accepted solution]

Hi @Vitalii C_ 

Assuming you have done a standard installation of PowerShell Core on your build agent image, then it should work if you place your PowerShell in a script file, then using  cmd.exe task, run it like so

pwsh.exe -File yourscript.ps1
exit %ERRORLEVEL%

If using Linux build agents with PowerShell core, you can inline PowerShell script with the appropriate shebang in a shell script task

#!/usr/bin/env pwsh

Get-ChildItem ...

[Vitalii C_]

Hi, @Alistair.Mackay

Happy New Year and Merry Christmas.

Thanks for sharing.

But my question is not about proxy call from command task, but about ability to run inline/file PowerShell script with a script task.

So, again, thanks for sharing.

I have the same idea about file-based  proxy call approach if I will figure out that my scenario above is not an option.

Also, I will mark you reply as "accepted", because it's covering part of the solution.

[Alistair.Mackay]

AFAIK there's no way currently to run inline PowerShell Core script tasks in Bamboo on Windows agents, not until Atlassian or a 3rd party provides a task plugin for it. Only with the above mechanism on Linux agents can you run inline.