Split Windows setup scripts, prepare for cleanup and multiple CRI (#3994

)

docs/clusterdefinition.md

@@ -580,10 +580,11 @@ https://{keyvaultname}.vault.azure.net:443/secrets/{secretName}/{version}
 
 #### Choosing a Windows version
 
-If you want to choose a specific Windows image, but automatically use the latest - set `windowsPublisher`, `windowsOffer`, and `windowsSku`. If you need a specific version, then add `imageVersion` too.
+If you want to choose a specific Windows image, but automatically use the latest - set `windowsPublisher`, `windowsOffer`, and `windowsSku`. If you need a specific version, then add `agentWindowsVersion` too.
 
 You can find all available images with `az vm image list`
 
+
 ```bash
 $ az vm image list --publisher MicrosoftWindowsServer --all -o table
 

parts/k8s/kuberneteswindowsfunctions.ps1

@@ -0,0 +1,34 @@
+# This is a temporary file to test dot-sourcing functions stored in separate scripts in a zip file
+
+filter Timestamp {"$(Get-Date -Format o): $_"}
+
+function
+Write-Log($message)
+{
+    $msg = $message | Timestamp
+    Write-Output $msg
+}
+
+function DownloadFileOverHttp
+{
+    Param(
+        [Parameter(Mandatory=$true)][string]
+        $Url,
+        [Parameter(Mandatory=$true)][string]
+        $DestinationPath
+    )
+    $secureProtocols = @()
+    $insecureProtocols = @([System.Net.SecurityProtocolType]::SystemDefault, [System.Net.SecurityProtocolType]::Ssl3)
+
+    foreach ($protocol in [System.Enum]::GetValues([System.Net.SecurityProtocolType]))
+    {
+        if ($insecureProtocols -notcontains $protocol)
+        {
+            $secureProtocols += $protocol
+        }
+    }
+    [System.Net.ServicePointManager]::SecurityProtocol = $secureProtocols
+
+    Invoke-WebRequest $Url -UseBasicParsing -OutFile $DestinationPath -Verbose
+    Write-Log "Downloaded file to $DestinationPath"
+}