AZURE CLOUD ENGINEERING

Delete Azure VM and all associated Resources using PowerShell Script

Following PowerShell Script will help you to delete the Virtual Machine and all the associated resources like Disks (Boot Diagnostics Disk, OS, Data disks), Network adapters, Public IP.
Starting with a nice screenshot

Procedure
1. Copy the full script in to a notepad and save as .ps1 file
2. Open PowerShell as Administrator
3. Connect your Azure tenant
4. Run the script in PowerShell
5. Script will prompt to enter the VM Name. Enter the VM name and sit relax until the script completes the full deletion of all your resources
Notes: The script will not delete the network security group, Storage Account and Virtual Network as there can be other VMs attached to these resources
The Script is made with extra precautions and tested well, to avoid any unexpected deletions. However, Appreciated to test the script in your test infrastructure before using in Production critical systems
Following code needs to be copied to a text file and save as .ps1 file

Write-Host -NoNewline -ForegroundColor Green "Please enter the VM name you would like to remove:"
$VMName = Read-Host $vm = Get-AzVm -Name $VMName
if ($vm){
$RGName=$vm.ResourceGroupName
Write-Host -ForegroundColor Cyan 'Resource Group Name is identified as-' $RGName
$diagSa = [regex]::match($vm.DiagnosticsProfile.bootDiagnostics.storageUri, '^http[s]?://(.+?)\.').groups[1].value
Write-Host -ForegroundColor Cyan 'Marking Disks for deletion...'
$tags = @{"VMName"=$VMName; "Delete Ready"="Yes"}
$osDiskName = $vm.StorageProfile.OSDisk.Name
$datadisks = $vm.StorageProfile.DataDisks
$ResourceID = (Get-Azdisk -Name $osDiskName).id 
New-AzTag -ResourceId $ResourceID -Tag $tags | Out-Null
if ($vm.StorageProfile.DataDisks.Count -gt 0) {
    foreach ($datadisks in $vm.StorageProfile.DataDisks){
    $datadiskname=$datadisks.name
    $ResourceID = (Get-Azdisk -Name $datadiskname).id
    New-AzTag -ResourceId $ResourceID -Tag $tags | Out-Null
    }
}
if ($vm.Name.Length -gt 9){
    $i = 9
    }
    else
    {
    $i = $vm.Name.Length - 1
}
$azResourceParams = @{
 'ResourceName' = $VMName 
 'ResourceType' = 'Microsoft.Compute/virtualMachines' 
 'ResourceGroupName' = $RGName
}
$vmResource = Get-AzResource @azResourceParams
$vmId = $vmResource.Properties.VmId
$diagContainerName = ('bootdiagnostics-{0}-{1}' -f $vm.Name.ToLower().Substring(0, $i), $vmId)
$diagSaRg = (Get-AzStorageAccount | where { $_.StorageAccountName -eq $diagSa }).ResourceGroupName
$saParams = @{ 
  'ResourceGroupName' = $diagSaRg
  'Name' = $diagSa 
}
Write-Host -ForegroundColor Cyan 'Removing Boot Diagnostic disk..'
if ($diagSa){
Get-AzStorageAccount @saParams | Get-AzStorageContainer | where {$_.Name-eq $diagContainerName} | Remove-AzStorageContainer -Force 
}
else {
Write-Host -ForegroundColor Green "No Boot Diagnostics Disk found attached to the VM!"
}
Write-Host -ForegroundColor Cyan 'Removing Virtual Machine-' $VMName 'in Resource Group-'$RGName '...'
$null = $vm | Remove-AzVM -Force
Write-Host -ForegroundColor Cyan 'Removing Network Interface Cards, Public IP Address(s) used by the VM...'
foreach($nicUri in $vm.NetworkProfile.NetworkInterfaces.Id) {
   $nic = Get-AzNetworkInterface -ResourceGroupName $vm.ResourceGroupName -Name $nicUri.Split('/')[-1] 
   Remove-AzNetworkInterface -Name $nic.Name -ResourceGroupName $vm.ResourceGroupName -Force
   foreach($ipConfig in $nic.IpConfigurations) {
     if($ipConfig.PublicIpAddress -ne $null){
     Remove-AzPublicIpAddress -ResourceGroupName $vm.ResourceGroupName -Name $ipConfig.PublicIpAddress.Id.Split('/')[-1] -Force
     }
    }
}
Write-Host -ForegroundColor Cyan 'Removing OS disk and Data Disk(s) used by the VM..'
Get-AzResource -tag $tags | where{$_.resourcegroupname -eq $RGName}| Remove-AzResource -force | Out-Null
Write-Host -ForegroundColor Green 'Azure Virtual Machine-' $VMName 'and all the resources associated with the VM were removed sucesfully...'
}
else{
Write-Host -ForegroundColor Red "The VM name entered doesn't exist in your connected Azure Tenant! Kindly check the name entered and restart the script with correct VM name..."
}