Updated the script to use nssm service manager

cluster/windows/kube-startup.ps1

-#!/bin/bash
-
 # Copyright 2016 The Kubernetes Authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
@@ -14,7 +12,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-# kube-startup.ps1 is used to run kubelet and kubeproxy as a process. The processes can be viewed using TaskManager(Taskmgr.exe).
+# kube-startup.ps1 is used to run kubelet and kubeproxy as a process. It uses nssm (https://nssm.cc/) process manager to register kubelet and kube-proxy process,
+# The processes can be viewed using TaskManager(Taskmgr.exe).
 # Please note that this startup script does not start the API server. Kubernetes control plane currently runs on Linux
 # and only Kubelet and Kube-Proxy can be run on Windows
  
@@ -30,17 +29,63 @@ param (
     [string]$KubeProxyExePath = ".\kube-proxy.exe"
 )
 
-# CONTAINER_NETWORK environment variable is used by kubelet and is used to determine the Docker network to be used by PODs
-$env:CONTAINER_NETWORK = $ContainerNetwork
+$kubeletDirectory = (Get-Item $KubeletExePath).Directory.FullName
+$kubeproxyDirectory = (Get-Item $KubeProxyExePath).Directory.FullName
+
+# Assemble the Kubelet executable arguments
+$kubeletArgs = @("--hostname-override=$Hostname","--pod-infra-container-image=$InfraContainerImage","--resolv-conf=""""","--api-servers=$APIServer","--cluster-dns=$ClusterDNS")
+# Assemble the kube-proxy executable arguments
+$kubeproxyArgs = @("--hostname-override=$Hostname","--proxy-mode=userspace","--bind-address=$Hostname","--master=$APIServer")
+
+# Setup kubelet service
+nssm install kubelet "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"
+nssm set kubelet Application "$KubeletExePath"
+nssm set kubelet AppDirectory "$kubeletDirectory"
+nssm set kubelet AppParameters $kubeletArgs
+nssm set kubelet DisplayName kubelet
+nssm set kubelet Description kubelet
+nssm set kubelet Start SERVICE_AUTO_START
+nssm set kubelet ObjectName LocalSystem
+nssm set kubelet Type SERVICE_WIN32_OWN_PROCESS
+# Delay restart if application runs for less than 1500 ms
+nssm set kubelet AppThrottle 1500
+nssm set kubelet AppStdout "$LogDirectory\kubelet.log"
+nssm set kubelet AppStderr "$LogDirectory\kubelet.err.log"
+nssm set kubelet AppStdoutCreationDisposition 4
+nssm set kubelet AppStderrCreationDisposition 4
+nssm set kubelet AppRotateFiles 1
+nssm set kubelet AppRotateOnline 1
+# Rotate Logs Every 24 hours or 1 gb 
+nssm set kubelet AppRotateSeconds 86400
+nssm set kubelet AppRotateBytes 1048576
+nssm set kubelet AppEnvironmentExtra CONTAINER_NETWORK=$ContainerNetwork
 
-# INTERFACE_TO_ADD_SERVICE_IP environment variable to which Services IPs will be added. By Default "vEthernet (HNS Internal NIC)" which is created by
-# when Docker is installed is used as it is private to the Host
-$env:INTERFACE_TO_ADD_SERVICE_IP = $InterfaceForServiceIP
 
-# Runs the kubelet with the user provided or default options
-Start-Process -FilePath "$KubeletExePath" -ArgumentList --hostname-override=$Hostname, --pod-infra-container-image=$InfraContainerImage, `
---resolv-conf=, --api-servers=$APIServer, --cluster-dns=$ClusterDNS -RedirectStandardError "$LogDirectory\kubelet.log" -NoNewWindow
+# Setup kube-proxy service
+nssm install kube-proxy "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"
+nssm set kube-proxy Application "$KubeProxyExePath"
+nssm set kube-proxy AppDirectory "$kubeproxyDirectory"
+nssm set kube-proxy AppParameters $kubeproxyArgs
+nssm set kube-proxy DisplayName kube-proxy
+nssm set kube-proxy Description kube-proxy
+nssm set kube-proxy Start SERVICE_AUTO_START
+nssm set kube-proxy ObjectName LocalSystem
+nssm set kube-proxy Type SERVICE_WIN32_OWN_PROCESS
+# Delay restart if application runs for less than 1500 ms
+nssm set kube-proxy AppThrottle 1500
+nssm set kube-proxy AppStdout "$LogDirectory\kube-proxy.log"
+nssm set kube-proxy AppStderr "$LogDirectory\kube-proxy.err.log"
+nssm set kube-proxy AppStdoutCreationDisposition 4
+nssm set kube-proxy AppStderrCreationDisposition 4
+nssm set kube-proxy AppRotateFiles 1
+nssm set kube-proxy AppRotateOnline 1
+# Rotate Logs Every 24 hours or 1 gb 
+nssm set kube-proxy AppRotateSeconds 86400
+nssm set kube-proxy AppRotateBytes 1048576
+nssm set kube-proxy AppEnvironmentExtra INTERFACE_TO_ADD_SERVICE_IP=$InterfaceForServiceIP
 
-# Runs the kube-proxy with the user provided or default options
-Start-Process -FilePath "$KubeProxyExePath" -ArgumentList --proxy-mode=userspace, --hostname-override=$Hostname, --master=$APIServer, `
---bind-address=$Hostname -RedirectStandardError "$LogDirectory\kube-proxy.log" -NoNewWindow 
+# Start kubelet and kube-proxy Services
+echo "Starting kubelet"
+Start-Service kubelet
\ No newline at end of file
+echo "Starting kube-proxy"
+Start-Service kube-proxy