AzureVMSnappyShots

AzureVMSnappyShots.ps1

# some variab;es
$resourceGroupName = 'rgTest'
$location = 'uksouth'
$vmName = 'rg-sm'
$snapshotName = ('snappyshot-SomethingUseful')

## take a snapshot of the disk
$vm = Get-AzVM -ResourceGroupName $resourceGroupName -Name $vmName
$currentOsDisk = $vm.StorageProfile.OsDisk.Name
$snapshot =  New-AzSnapshotConfig -SourceUri $vm.StorageProfile.OsDisk.ManagedDisk.Id -Location $location  -CreateOption copy
New-AzSnapshot -Snapshot $snapshot -SnapshotName $snapshotName -ResourceGroupName $resourceGroupName

Get-AzSnapshot -ResourceGroupName $resourceGroupName | FT ResourceGroupName, Name, TimeCreated

#########################
# BREAK EVERYTHING HERE #
#########################

# create a new managed disk from the snapshot
$osDiskName = ('newOSdisk-{0}' -f (Get-Random))
$snapshotinfo = Get-AzSnapshot -ResourceGroupName $resourceGroupName -SnapshotName $snapshotName
$disk = New-AzDisk -DiskName $osDiskName (New-AzDiskConfig  -Location $location -CreateOption Copy -SourceResourceId $snapshotinfo.Id) -ResourceGroupName $resourceGroupName

# power down vm and switcharoo on the disks
Stop-AzVM -ResourceGroupName $resourceGroupName -Name $vm.Name -Force
$disk = Get-AzDisk -ResourceGroupName $resourceGroupName -Name $osDiskName
Set-AzVMOSDisk -VM $vm -ManagedDiskId $disk.Id -Name $disk.Name
Update-AzVM -ResourceGroupName $resourceGroupName -VM $vm
Start-AzVM -Name $vm.Name -ResourceGroupName $resourceGroupName


# tidy up the old disks ?
Remove-AzDisk -ResourceGroupName $resourceGroupName -DiskName $currentOsDisk