Function autoreboot on remoteuptime

2026-02-18 08:12:34 +01:00
parent 96f2085a20
commit f6b700423f
1 changed files with 73 additions and 0 deletions
--- a/Functions/AutoReboot-on-RemoteUptime.ps1
+++ b/Functions/AutoReboot-on-RemoteUptime.ps1
@@ -0,0 +1,73 @@
+Set-StrictMode -Version Latest
+
+function Invoke-LocalRebootOnRemoteUptime {
+    <#
+    .SYNOPSIS
+        Reboots local machine based on remote uptime. Optimized for RMM/NinjaRMM.
+    
+    .PARAMETER RemoteComputerName
+        The target server to compare against.
+    .PARAMETER DryRun
+        If present, logs what would happen without actually rebooting.
+    #>
+    [CmdletBinding()]
+    param (
+        [Parameter(Mandatory = $true)]
+        [string]$RemoteComputerName,
+
+        [Parameter(Mandatory = $false)]
+        [switch]$DryRun
+    )
+
+    process {
+        $BasePath = $PSScriptRoot
+        $LogPath = Join-Path -Path $BasePath -ChildPath "Logs"
+        $Timestamp = Get-Date -Format "yyyyMMdd-HHmm"
+        $LogFile = Join-Path -Path $LogPath -ChildPath "UptimeCheck_$($Timestamp).txt"
+
+        try {
+            if (-not (Test-Path -Path $LogPath)) {
+                New-Item -Path $LogPath -ItemType Directory -Force | Out-Null
+            }
+
+            Write-Verbose "Testing connection to $RemoteComputerName..."
+            if (-not (Test-Connection -ComputerName $RemoteComputerName -Count 1 -Quiet)) {
+                Write-Error "Remote server $RemoteComputerName unreachable."
+                return
+            }
+
+            $LocalOS = Get-CimInstance -ClassName Win32_OperatingSystem -ErrorAction Stop
+            $RemoteOS = Get-CimInstance -ClassName Win32_OperatingSystem -ComputerName $RemoteComputerName -ErrorAction Stop
+
+            $LocalBoot = $LocalOS.LastBootUpTime
+            $RemoteBoot = $RemoteOS.LastBootUpTime
+
+            Write-Output "Local Boot: $LocalBoot | Remote Boot: $RemoteBoot"
+
+            if ($RemoteBoot -gt $LocalBoot) {
+                $Msg = "MATCH: Remote rebooted more recently. Local reboot required."
+                
+                if ($DryRun) {
+                    Write-Warning "[DRY RUN]: $Msg (Reboot suppressed by switch)"
+                    $("[DRY RUN] " + $Msg) | Out-File -FilePath $LogFile -Append
+                }
+                else {
+                    Write-Output "Executing Reboot..."
+                    $Msg | Out-File -FilePath $LogFile -Append
+                    # Force restart immediately for RMM context
+                    Restart-Computer -Force -Confirm:$false
+                }
+            }
+            else {
+                Write-Output "No action needed. Local system is up to date."
+            }
+        }
+        catch {
+            Write-Error "Script Failed: $($_.Exception.Message)"
+        }
+    }
+}
+
+# NinjaRMM Script Variable Mapping (Example)
+# Ensure you have a script variable in Ninja called 'RemoteServer'
+Invoke-LocalRebootOnRemoteUptime -RemoteComputerName $RemoteComputerName