updatepuppetagent.ps1

# upgrading puppet with choco 
#
# Niklas Akerlund

# Get version of puppet agent
$puppetversion = & puppet agent --version

# Get the latest run of puppet
$lastrun = Get-WinEvent -ProviderName Puppet -MaxEvents 35 | where {$_.Message -like "*Finished*" -or $_.Message -like "Applied*"} | sort TimeCreated -Descending | select -First 1 |  select -ExpandProperty TimeCreated
$datenow = Get-Date

# Check version and if old version update 
if ($puppetversion -lt "4.8.1" -and $lastrun){

    # Only update if there is no puppet apply running
    if ($datenow -ge $lastrun.AddMinutes(5) -and $datenow -le $lastrun.AddMinutes(25) -and !(get-process ruby -ErrorAction SilentlyContinue)){
        # update Puppet client to great success version
        choco upgrade puppet-agent --y
        Write-output "fixitrix update "
    }else{
        Write-Output "To close to apply will try again"
    }

}