chore: Add windowsnodelabelsync.ps1 (#4163)

staging/provisioning/windows/windowsnodelabelsync.ps1

@@ -0,0 +1,12 @@
+<#
+.DESCRIPTION
+    This script is intended to sync customized and system-assigned Kubelet node labels.
+#>
+
+$Global:ClusterConfiguration = ConvertFrom-Json ((Get-Content "c:\k\kubeclusterconfig.json" -ErrorAction Stop) | out-string)
+$Global:KubeletNodeLabels = $Global:ClusterConfiguration.Kubernetes.Kubelet.NodeLabels
+
+$NodeLabels = $KubeletNodeLabels -split ","
+ForEach ($NodeLabel in $NodeLabels) {
+  c:\k\kubectl.exe --kubeconfig=c:\k\config label node --overwrite $env:computername.ToLower() $NodeLabel
+}