initbuildagent.ps1

#usage initbuildagent.ps1
param
(
    [string] $templateLink              = "https://raw.githubusercontent.com/Microsoft/nav-arm-templates/master/buildagent.json",
    [Parameter(Mandatory=$true)]
    [string] $vmAdminUsername,
    [Parameter(Mandatory=$true)]
    [string] $adminPassword,
    [Parameter(Mandatory=$true)]
    [string] $organization,
    [Parameter(Mandatory=$true)]
    [string] $token,
    [Parameter(Mandatory=$true)]
    [string] $pool,
    [Parameter(Mandatory=$true)]
    [string] $agentUrl,
    [Parameter(Mandatory=$false)]
    [string] $finalSetupScriptUrl,
    [Parameter(Mandatory=$true)]
    [int] $count = 1,
    [Parameter(Mandatory=$true)]
    [string] $vmname,
    [Parameter(Mandatory=$true)]
    [string] $installHyperV,
    [string] $runInsideDocker
)

function Download-File([string]$sourceUrl, [string]$destinationFile)
{
    Remove-Item -Path $destinationFile -Force -ErrorAction Ignore
    (New-Object System.Net.WebClient).DownloadFile($sourceUrl, $destinationFile)
}

Start-Transcript -Path "c:\log.txt"

$errorActionPreference = "Stop"

[System.Net.ServicePointManager]::SecurityProtocol = [System.Net.SecurityProtocolType]::Ssl3 -bor [System.Net.SecurityProtocolType]::Tls -bor [System.Net.SecurityProtocolType]::Ssl3 -bor [System.Net.SecurityProtocolType]::Tls11 -bor [System.Net.SecurityProtocolType]::Tls12

Set-ExecutionPolicy -ExecutionPolicy unrestricted -Force

Set-ItemProperty -Path "HKLM:\SOFTWARE\Microsoft\Active Setup\Installed Components\{A509B1A7-37EF-4b3f-8CFC-4F3A74704073}" -Name "IsInstalled" -Value 0 -ErrorAction SilentlyContinue | Out-Null
Set-ItemProperty -Path "HKCU:\SOFTWARE\Microsoft\Active Setup\Installed Components\{A509B1A8-37EF-4b3f-8CFC-4F3A74704073}" -Name "IsInstalled" -Value 0 -ErrorAction SilentlyContinue | Out-Null

if (!(Get-PackageProvider -Name NuGet -ListAvailable -ErrorAction Ignore)) {
    Install-PackageProvider -Name NuGet -MinimumVersion 2.8.5.208 -Force -WarningAction Ignore | Out-Null
}

$DownloadFolder = "C:\Download"
MkDir $DownloadFolder -ErrorAction Ignore | Out-Null

$SetupAgentsScriptUrl = $templateLink.Substring(0,$templateLink.LastIndexOf('/')+1)+'SetupAgents.ps1'
$SetupAgentsScript = "c:\Download\SetupAgents.ps1"
Download-File -sourceUrl $SetupAgentsScriptUrl -destinationFile $SetupAgentsScript

$installDocker = (!(Test-Path -Path "C:\Program Files\Docker\docker.exe" -PathType Leaf))
if ($installDocker) {
    $installDockerScriptUrl = $templateLink.Substring(0,$templateLink.LastIndexOf('/')+1)+'InstallOrUpdateDockerEngine.ps1'
    $installDockerScript = Join-Path $DownloadFolder "InstallOrUpdateDockerEngine.ps1"
    Download-File -sourceUrl $installDockerScriptUrl -destinationFile $installDockerScript
    . $installDockerScript -Force -envScope "Machine" -dataRoot 'c:\d'
}

$finalSetupScriptContent = ''
if ($finalSetupScriptUrl) {
    if ($finalSetupScriptUrl -notlike "https://*" -and $finalSetupScriptUrl -notlike "http://*") {
        $finalSetupScriptUrl = $templateLink.Substring(0,$templateLink.LastIndexOf('/')+1)+$finalSetupScriptUrl    
    }
    Set-Content -Path (Join-Path $DownloadFolder "url.txt") -Value "$finalSetupScriptUrl"
    $finalSetupScript = Join-Path $DownloadFolder "FinalSetupScript.ps1"
    Download-File -sourceUrl $finalSetupScriptUrl -destinationFile $finalSetupScript
    $finalSetupScriptContent = Get-Content -Path $finalSetupScript -Encoding UTF8 -Raw
}

$size = (Get-PartitionSupportedSize -DiskNumber 0 -PartitionNumber 2)
Resize-Partition -DiskNumber 0 -PartitionNumber 2 -Size $size.SizeMax

$setupAgentsScriptContent = ''
if ($token) {
    $setupAgentsScriptContent = Get-Content -Path $setupAgentsScript -Encoding UTF8 -Raw
}

Set-Content -Path $setupAgentsScript -Value @"
`$organization = '$organization'
`$token = '$token'
`$agentName = '$agentName'
`$agentUrl = '$agentUrl'
`$pool = '$pool'
`$count = $count
`$vmName = '$vmName'
`$templateLink = '$templateLink'
`$runInsideDocker = '$runInsideDocker'

Start-Transcript -Path "c:\log.txt" -Append
$finalSetupScriptContent

$setupAgentsScriptContent

Stop-Transcript
"@

$startupAction = New-ScheduledTaskAction -Execute "powershell.exe" -Argument "-NoProfile -WindowStyle Hidden -ExecutionPolicy UnRestricted -File $SetupAgentsScript"
$startupTrigger = New-ScheduledTaskTrigger -AtStartup
$startupTrigger.Delay = "PT1M"
$settings = New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -DontStopIfGoingOnBatteries -StartWhenAvailable -RunOnlyIfNetworkAvailable -DontStopOnIdleEnd
Register-ScheduledTask -TaskName "SetupStart" `
                       -Action $startupAction `
                       -Trigger $startupTrigger `
                       -Settings $settings `
                       -RunLevel "Highest" `
                       -User "NT AUTHORITY\SYSTEM" | Out-Null

if ($installHyperV -eq "Yes") {
    Enable-WindowsOptionalFeature -Online -FeatureName Microsoft-Hyper-V, Containers -All -NoRestart | Out-Null
}

try {
    $version = [System.Version](Get-ItemPropertyValue -Path 'HKLM:\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full' -Name 'Version')
    if ($version -lt '4.8.0') {
        Write-Host "Installing DotNet 4.8 and restarting computer to start Installation tasks"
        $ProgressPreference = "SilentlyContinue"
        $dotnet48exe = Join-Path $downloadFolder "dotnet48.exe"
        Invoke-WebRequest -UseBasicParsing -uri 'https://go.microsoft.com/fwlink/?linkid=2088631' -OutFile $dotnet48exe
        & $dotnet48exe /q
        # Wait 30 minutes - machine should restart before this...
        Start-Sleep -Seconds 1800
    }
}
catch {
    Write-Host ".NET Framework 4.7 or higher doesn't seem to be installed"
}
Write-Host "Restarting computer and start Installation tasks"

Stop-Transcript

Shutdown -r -t 60