deployiisnlb.ps1

Import-Module NetworkLoadBalancingClusters

$CopyOrigin="C:\inetpub\wwwroot\xxxx"
$TimeOut=5

$Servers = New-Object System.Collections.ArrayList

$Servers.Add(@{Ip="xxx.xxx.xxx";Path="E:\xxxx";Urls=("/","/appx")})
$Servers.Add(@{Ip="xxx.xxx.xxx";Path="F:\xxxx";Urls=("/","/appx")})
$Servers.Add(@{Ip="xxx.xxx.xxx";Path="G:\xxxx";Urls=("/","/appx")})
$Servers.Add(@{Ip="xxx.xxx.xxx";Path="H:\xxxx";Urls=("/","/appx")})

foreach($Server in $Servers)
{
    Write-Host "Starting deploy on $Server.Ip"

    Write-Host "Stopping NLB cluster..."
    Stop-NlbClusterNode -Hostname $Server.Ip

    Start-Sleep -Second $TimeOut
    
    Write-Host "Copying files..."
    
    robocopy $CopyOrigin   $Server.Path /S /E
    
    Start-Sleep -Second $TimeOut
    foreach($Url in $Server.Urls){
        $s=$Server.Ip
        Write-Host "Warming up (http://"$s$Url")..."
        $statusCodeOk = $FALSE
        while($statusCodeOk -ne $TRUE) {
        	$request = [System.Net.WebRequest]::Create("http://$s$Url")
        	Try{
			$resp = $request.GetResponse()
			$statusCodeOk = $resp.StatusCode -eq "200"
		}
		Catch{
			Write-Host $_.Exception.Message
			$statusCodeOk = $FALSE
		}
		
		if($statusCodeOk -ne $TRUE) { Write-Host "Trying again..." }
		else { Write-Host "Response OK" }
        }
    }

    Start-Sleep -Second $TimeOut

    Write-Host "Starting NLB cluster..."
    Start-NlbClusterNode -Hostname $Server.Ip
    
    Write-Host $Server.Ip
    Write-Host "Done!"
}

Added the Import-Module command at the beginning and the english translation for all the status messages. :)

Now the "Warming up" stage will request the server url until a 200 is received. Useful for heavy/cached services.