Puppet code to install SCCM Agent on Windows

Install-CCM-Agent.ps1.epp

<%- | String $client_source,
      String $argument_list
| -%>
$ClientSource = "<%= $client_source %>"
$TempDir      = Join-Path "C:\Windows\Temp" "ccm_client"
$CCMSetup     = Join-Path $TempDir "ccmsetup.exe"

if (-not (Test-Path $CCMSetup)) {
  Try {
    Write-Output "Copying $ClientSource to $TempDir"
    Copy-Item -Path $ClientSource -Destination $TempDir -Recurse
  }
  Catch {
    Write-Error "The SCCM installation files could not be copied"
    exit 1
  }
}

Try {
  Write-Output "Running $CCMSetup"
  $instclient = $(start-process $CCMSetup -ArgumentList "<%= $argument_list %>" -PassThru)
  $instclient | wait-process
}
Catch {
  Write-Output "Something went wrong with the ccmsetup.exe process"
  exit 2
}

$ClientLog       = "C:\Windows\ccmsetup\Logs\client.msi.log"
$ClientInstalled = "Installation operation completed successfully"
$ClientFailed    = "Installation operation failed"

While (!(test-path "C:\Windows\ccmsetup\Logs\client.msi.log"))
{
  Write-Output "The client.msi log file is not present. Waiting 10s..."
  start-sleep 10
}
Write-Output "The client.msi log file is now present"

$service = "ccmsetup"
while (get-service -name $service -ErrorAction SilentlyContinue)
{
  Write-Output "The CCMSetup service is still present. Waiting 30s..."
  Start-Sleep -Seconds 30
}

Write-Output "The CCMSetup service is not present"
Start-Sleep -Seconds 15
Write-Output "Reading client.msi log file to determine installation success or failure"

If (select-string -Path $ClientLog -Pattern $ClientInstalled -SimpleMatch)
{
  Write-Output "Installation was successful"
  $LASTEXITCODE = 0
  Write-Output "Cleaning up installation files"
  Remove-Item $TempDir -Force -Recurse
}
ElseIf (select-string -Path $ClientLog -Pattern $ClientFailed -SimpleMatch)
{
  Write-Error "Client installation failed"
  $LASTEXITCODE = 3
}
Else
{
  Write-Output "Something went wrong with the installation"
  $LASTEXITCODE = 4
}

exit $LASTEXITCODE

sccm.pp

# This profile installs the SCCM agent on Windows servers.
#
class profile::win::sccm {

  $install_flags = [
    '/FORCEINSTALL',
  ]

  $install_options = [
    'SMSCACHEFLAGS=PERCENTDISKSPACE;NTFSONLY',
    'SMSCACHESIZE=10',
    'IGNOREAPPVVERSIONCHECK=TRUE',
    'RESETKEYINFORMATION=TRUE',
  ]

  case $facts['datacenter'] {
    'AMER': {
      $custom_options = [
        'SMSMP=foo.na.corp.net',
        'SMSSITECODE=AMER',
        'FSP=foo.na.corp.net',
      ]
    }
    'EMEA': {
      $custom_options = [
        'SMSMP=foo.ea.corp.net',
        'SMSSITECODE=EMEA',
        'FSP=foo.EA.corp.net',
      ]
    }
    'APAC': {
      $custom_options = [
        'SMSMP=foo.apac.corp.net',
        'SMSSITECODE=APAC',
        'FSP=foo.apac.corp.net',
      ]
    }
    default : {
      fail("No match found for datacenter: ${facts['datacenter']}")
    }
  }

  # Get the location to the folder that contains the installation files.
  $client_source = lookup('sccm_source_folder')

  # Combine the arguments together into a single-line, space-separated string.
  $argument_list = ($install_flags + $install_options + $custom_options).join(' ')

  # Install the SCCM client by executing a PowerShell script that tracks the installation process.
  # The script is neccesary because the SCCM install forks into a bunch of subprocess and Puppet can't
  # keep track of the installation.
  #
  # The script it built from a template. The template uses:
  #   client_source: The full path to the ccmsetup.exe.
  #   argument_list: A one-line string with all arguments separated by spaces.
  #
  # We are making this exec idempotent by checking for the existence of ccmexec.exe.
  # This IS NOT a good way to verify that SCCM is installed, but it works for now.
  exec { 'Install SCCM Client':
    command   => epp('profile/win/Install-CCM-Agent.ps1.epp', {
      'client_source' => $client_source,
      'argument_list' => $argument_list,
    }),
    provider  => 'powershell',
    timeout   => '600', # Increase from default of 300s. SCCM takes a while to install.
    logoutput => true,
    creates   => 'c:\Windows\CCM\CcmExec.exe',
  }

}