Create Invoke-DeallocateVm.ps1

Invoke-DeallocateVm.ps1

@@ -0,0 +1,50 @@
+# Import the required modules
+Import-Module Az.Compute
+Import-Module Az.Accounts
+
+# Authenticate to Azure
+# This script assumes you have set up a Run As account in your Azure Automation account
+$Connection = Get-AutomationConnection -Name "AzureRunAsConnection"
+Connect-AzAccount -ServicePrincipal -TenantId $Connection.TenantId -ApplicationId $Connection.ApplicationId -CertificateThumbprint $Connection.CertificateThumbprint
+
+# Define the resource group and the list of VMs
+$resourceGroupName = "YourResourceGroupName"
+$vmNames = @("VM1", "VM2", "VM3", ...) # Add all your VM names here
+
+# Function to get the last logon time of a VM
+function Get-LastLogonTime {
+    param (
+        [string]$vmName
+    )
+    # Get the diagnostics logs or performance metrics to determine the last logon time
+    # For simplicity, this example uses a placeholder value
+    # Replace this with the actual logic to get the last logon time
+    $lastLogonTime = (Get-Date).AddHours(-($RANDOM % 24)) # Placeholder logic
+    return $lastLogonTime
+}
+
+# Define the idle time threshold (8 hours)
+$idleTimeThreshold = 8
+
+foreach ($vmName in $vmNames) {
+    try {
+        $vm = Get-AzVM -ResourceGroupName $resourceGroupName -Name $vmName -Status
+        $lastLogonTime = Get-LastLogonTime -vmName $vmName
+
+if ($vm.Statuses[1].Code -eq "PowerState/running") {
+            $currentTime = Get-Date
+            $idleTime = ($currentTime - $lastLogonTime).TotalHours
+
+if ($idleTime -gt $idleTimeThreshold) {
+                Write-Output "VM $vmName has been idle for $idleTime hours. Shutting down..."
+                Stop-AzVM -ResourceGroupName $resourceGroupName -Name $vmName -Force
+            } else {
+                Write-Output "VM $vmName has been idle for $idleTime hours. No action required."
+            }
+        } else {
+            Write-Output "VM $vmName is not running. No action required."
+        }
+    } catch {
+        Write-Error "An error occurred while processing VM $vmName: $_"
+    }
+}