Update GCE Windows node images with March's Windows updates

cluster/gce/config-common.sh

@@ -159,4 +159,4 @@ export WINDOWS_BOOTSTRAP_KUBECONFIG_FILE="${WINDOWS_K8S_DIR}\kubelet.bootstrap-k
 # Path for kube-proxy kubeconfig file on Windows nodes.
 export WINDOWS_KUBEPROXY_KUBECONFIG_FILE="${WINDOWS_K8S_DIR}\kubeproxy.kubeconfig"
 # Pause container image for Windows container.
-export WINDOWS_INFRA_CONTAINER="gcr.io/gke-release/pause-win:1.1.0"
+export WINDOWS_INFRA_CONTAINER="gcr.io/gke-release/pause-win:1.2.0"

cluster/gce/util.sh

@@ -88,11 +88,11 @@ function set-linux-node-image() {
 function set-windows-node-image() {
   WINDOWS_NODE_IMAGE_PROJECT="windows-cloud"
   if [[ "${WINDOWS_NODE_OS_DISTRIBUTION}" == "win2019" ]]; then
-    WINDOWS_NODE_IMAGE="windows-server-2019-dc-core-for-containers-v20200114"
+    WINDOWS_NODE_IMAGE="windows-server-2019-dc-core-for-containers-v20200310"
   elif [[ "${WINDOWS_NODE_OS_DISTRIBUTION}" == "win1909" ]]; then
-    WINDOWS_NODE_IMAGE="windows-server-1909-dc-core-for-containers-v20200114"
+    WINDOWS_NODE_IMAGE="windows-server-1909-dc-core-for-containers-v20200310"
   elif [[ "${WINDOWS_NODE_OS_DISTRIBUTION}" == "win1809" ]]; then
-    WINDOWS_NODE_IMAGE="windows-server-1809-dc-core-for-containers-v20200114"
+    WINDOWS_NODE_IMAGE="windows-server-1809-dc-core-for-containers-v20200310"
   else
     echo "Unknown WINDOWS_NODE_OS_DISTRIBUTION ${WINDOWS_NODE_OS_DISTRIBUTION}" >&2
     exit 1

cluster/gce/windows/k8s-node-setup.psm1

@@ -135,11 +135,24 @@ function Add_GceMetadataServerRoute {
   }
 }
 
+# Returns a PowerShell object representing the Windows version.
+function Get_WindowsVersion {
+  # Unlike checking `[System.Environment]::OSVersion.Version`, this long-winded
+  # approach gets the OS revision/patch number correctly
+  # (https://superuser.com/a/1160428/652018).
+  $win_ver = New-Object -TypeName PSObject
+  $win_ver | Add-Member -MemberType NoteProperty -Name Major -Value $(Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion' CurrentMajorVersionNumber).CurrentMajorVersionNumber
+  $win_ver | Add-Member -MemberType NoteProperty -Name Minor -Value $(Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion' CurrentMinorVersionNumber).CurrentMinorVersionNumber
+  $win_ver | Add-Member -MemberType NoteProperty -Name Build -Value $(Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion' CurrentBuild).CurrentBuild
+  $win_ver | Add-Member -MemberType NoteProperty -Name Revision -Value $(Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion' UBR).UBR
+  return $win_ver
+}
+
 # Writes debugging information, such as Windows version and patch info, to the
 # console.
 function Dump-DebugInfoToConsole {
   Try {
-    $version = "$([System.Environment]::OSVersion.Version | Out-String)"
+    $version = Get_WindowsVersion | Out-String
     $hotfixes = "$(Get-Hotfix | Out-String)"
     $image = "$(Get-InstanceMetadata 'image' | Out-String)"
     Log-Output "Windows version:`n$version"

cluster/gce/windows/smoke-test.sh

@@ -358,7 +358,7 @@ spec:
     spec:
       containers:
       - name: pause-win
-        image: gcr.io/gke-release/pause-win:1.1.0
+        image: gcr.io/gke-release/pause-win:1.2.0
       nodeSelector:
         kubernetes.io/os: windows
       tolerations: