Run powershell Commands in Dockerfile - windows

Question

I have a PowerShell script and I tried running in the Docker using the RUN command in the windows base OS image but was unable due to permission issues. SO I thought to give the PS script in the Dockerfile itself but getting errors
I am using the "mcr.microsoft.com/windows:1909" image and I am attaching my PowerShell script below
param(
[Parameter()]
[ValidateNotNull()]
[string[]]$AdditionalExtensions = #(),
[switch]$LaunchWhenDone
)
if (!($IsLinux -or $IsOSX)) {
$codeCmdPath = "C:\Program Files (x86)\Microsoft VS Code\bin\code.cmd"
try {
$ProgressPreference = 'SilentlyContinue'
if (!(Test-Path $codeCmdPath)) {
Write-Host "`nDownloading latest stable Visual Studio Code..." -ForegroundColor Yellow
Remove-Item -Force $env:TEMP\vscode-stable.exe -ErrorAction SilentlyContinue
Invoke-WebRequest -Uri https://vscode-update.azurewebsites.net/latest/win32/stable -OutFile $env:TEMP\vscode-stable.exe
Write-Host "`nInstalling Visual Studio Code..." -ForegroundColor Yellow
Start-Process -Wait $env:TEMP\vscode-stable.exe -ArgumentList /silent, /mergetasks=!runcode
}
else {
Write-Host "`nVisual Studio Code is already installed." -ForegroundColor Yellow
}
$extensions = #("ms-vscode.PowerShell") + $AdditionalExtensions
foreach ($extension in $extensions) {
Write-Host "`nInstalling extension $extension..." -ForegroundColor Yellow
& $codeCmdPath --install-extension $extension
}
if ($LaunchWhenDone) {
Write-Host "`nInstallation complete, starting Visual Studio Code...`n`n" -ForegroundColor Green
& $codeCmdPath
}
else {
Write-Host "`nInstallation complete!`n`n" -ForegroundColor Green
}
}
finally {
$ProgressPreference = 'Continue'
}
}
else {
Write-Error "This script is currently only supported on the Windows operating system."
}```