167 lines
6.5 KiB
PowerShell
167 lines
6.5 KiB
PowerShell
# Variables
|
|
$DiskID = "/subscriptions/b1392e53-0162-4387-af15-dbf530c06f40/resourceGroups/TA180M/providers/Microsoft.Compute/disks/Windows10Pro_OsDisk_1_dfa2bffedea144c3901e9e4a3fadbbe3"
|
|
$VMName = "Windows10Pro"
|
|
$DiskSizeGB = 64
|
|
$AzSubscription = "Azure for Students"
|
|
|
|
# Script
|
|
# Provide your Azure admin credentials
|
|
Connect-AzAccount
|
|
|
|
#Provide the subscription Id of the subscription where snapshot is created
|
|
Select-AzSubscription -Subscription $AzSubscription
|
|
|
|
# VM to resize disk of
|
|
$VM = Get-AzVm | ? Name -eq $VMName
|
|
|
|
#Provide the name of your resource group where snapshot is created
|
|
$resourceGroupName = $VM.ResourceGroupName
|
|
|
|
# Get Disk from ID
|
|
$Disk = Get-AzDisk | ? Id -eq $DiskID
|
|
|
|
# Get VM/Disk generation from Disk
|
|
$HyperVGen = $Disk.HyperVGeneration
|
|
|
|
# Get Disk Name from Disk
|
|
$DiskName = $Disk.Name
|
|
|
|
# Get SAS URI for the Managed disk
|
|
$SAS = Grant-AzDiskAccess -ResourceGroupName $resourceGroupName -DiskName $DiskName -Access 'Read' -DurationInSecond 600000;
|
|
|
|
#Provide the managed disk name
|
|
#$managedDiskName = "yourManagedDiskName"
|
|
|
|
#Provide Shared Access Signature (SAS) expiry duration in seconds e.g. 3600.
|
|
#$sasExpiryDuration = "3600"
|
|
|
|
#Provide storage account name where you want to copy the snapshot - the script will create a new one temporarily
|
|
$storageAccountName = "shrink" + [system.guid]::NewGuid().tostring().replace('-','').substring(1,18)
|
|
|
|
#Name of the storage container where the downloaded snapshot will be stored
|
|
$storageContainerName = $storageAccountName
|
|
|
|
#Provide the key of the storage account where you want to copy snapshot.
|
|
#$storageAccountKey = "yourStorageAccountKey"
|
|
|
|
#Provide the name of the VHD file to which snapshot will be copied.
|
|
$destinationVHDFileName = "$($VM.StorageProfile.OsDisk.Name).vhd"
|
|
|
|
#Generate the SAS for the managed disk
|
|
#$sas = Grant-AzureRmDiskAccess -ResourceGroupName $resourceGroupName -DiskName $managedDiskName -Access Read -DurationInSecond $sasExpiryDuration
|
|
|
|
#Create the context for the storage account which will be used to copy snapshot to the storage account
|
|
$StorageAccount = New-AzStorageAccount -ResourceGroupName $resourceGroupName -Name $storageAccountName -SkuName Standard_LRS -Location $VM.Location
|
|
$destinationContext = $StorageAccount.Context
|
|
$container = New-AzStorageContainer -Name $storageContainerName -Permission Off -Context $destinationContext
|
|
|
|
#Copy the snapshot to the storage account and wait for it to complete
|
|
Start-AzStorageBlobCopy -AbsoluteUri $SAS.AccessSAS -DestContainer $storageContainerName -DestBlob $destinationVHDFileName -DestContext $destinationContext
|
|
while(($state = Get-AzStorageBlobCopyState -Context $destinationContext -Blob $destinationVHDFileName -Container $storageContainerName).Status -ne "Success") { $state; Start-Sleep -Seconds 20 }
|
|
$state
|
|
|
|
# Revoke SAS token
|
|
Revoke-AzDiskAccess -ResourceGroupName $resourceGroupName -DiskName $DiskName
|
|
|
|
# Emtpy disk to get footer from
|
|
$emptydiskforfootername = "$($VM.StorageProfile.OsDisk.Name)-empty.vhd"
|
|
|
|
# Empty disk URI
|
|
#$EmptyDiskURI = $container.CloudBlobContainer.Uri.AbsoluteUri + "/" + $emptydiskforfooter
|
|
|
|
$diskConfig = New-AzDiskConfig `
|
|
-Location $VM.Location `
|
|
-CreateOption Empty `
|
|
-DiskSizeGB $DiskSizeGB `
|
|
-HyperVGeneration $HyperVGen
|
|
|
|
$dataDisk = New-AzDisk `
|
|
-ResourceGroupName $resourceGroupName `
|
|
-DiskName $emptydiskforfootername `
|
|
-Disk $diskConfig
|
|
|
|
$VM = Add-AzVMDataDisk `
|
|
-VM $VM `
|
|
-Name $emptydiskforfootername `
|
|
-CreateOption Attach `
|
|
-ManagedDiskId $dataDisk.Id `
|
|
-Lun 63
|
|
|
|
Update-AzVM -ResourceGroupName $resourceGroupName -VM $VM
|
|
|
|
$VM | Stop-AzVM -Force
|
|
|
|
|
|
# Get SAS token for the empty disk
|
|
$SAS = Grant-AzDiskAccess -ResourceGroupName $resourceGroupName -DiskName $emptydiskforfootername -Access 'Read' -DurationInSecond 600000;
|
|
|
|
# Copy the empty disk to blob storage
|
|
Start-AzStorageBlobCopy -AbsoluteUri $SAS.AccessSAS -DestContainer $storageContainerName -DestBlob $emptydiskforfootername -DestContext $destinationContext
|
|
while(($state = Get-AzStorageBlobCopyState -Context $destinationContext -Blob $emptydiskforfootername -Container $storageContainerName).Status -ne "Success") { $state; Start-Sleep -Seconds 20 }
|
|
$state
|
|
|
|
# Revoke SAS token
|
|
Revoke-AzDiskAccess -ResourceGroupName $resourceGroupName -DiskName $emptydiskforfootername
|
|
|
|
# Remove temp empty disk
|
|
Remove-AzVMDataDisk -VM $VM -DataDiskNames $emptydiskforfootername
|
|
Update-AzVM -ResourceGroupName $resourceGroupName -VM $VM
|
|
|
|
# Delete temp disk
|
|
Remove-AzDisk -ResourceGroupName $resourceGroupName -DiskName $emptydiskforfootername -Force;
|
|
|
|
# Get the blobs
|
|
$emptyDiskblob = Get-AzStorageBlob -Context $destinationContext -Container $storageContainerName -Blob $emptydiskforfootername
|
|
$osdisk = Get-AzStorageBlob -Context $destinationContext -Container $storageContainerName -Blob $destinationVHDFileName
|
|
|
|
$footer = New-Object -TypeName byte[] -ArgumentList 512
|
|
write-output "Get footer of empty disk"
|
|
|
|
$downloaded = $emptyDiskblob.ICloudBlob.DownloadRangeToByteArray($footer, 0, $emptyDiskblob.Length - 512, 512)
|
|
|
|
$osDisk.ICloudBlob.Resize($emptyDiskblob.Length)
|
|
$footerStream = New-Object -TypeName System.IO.MemoryStream -ArgumentList (,$footer)
|
|
write-output "Write footer of empty disk to OSDisk"
|
|
$osDisk.ICloudBlob.WritePages($footerStream, $emptyDiskblob.Length - 512)
|
|
|
|
Write-Output -InputObject "Removing empty disk blobs"
|
|
$emptyDiskblob | Remove-AzStorageBlob -Force
|
|
|
|
|
|
#Provide the name of the Managed Disk
|
|
$NewDiskName = "$DiskName" + "-new"
|
|
|
|
#Create the new disk with the same SKU as the current one
|
|
$accountType = $Disk.Sku.Name
|
|
|
|
# Get the new disk URI
|
|
$vhdUri = $osdisk.ICloudBlob.Uri.AbsoluteUri
|
|
|
|
# Specify the disk options
|
|
$diskConfig = New-AzDiskConfig -AccountType $accountType -Location $VM.location -DiskSizeGB $DiskSizeGB -SourceUri $vhdUri -CreateOption Import -StorageAccountId $StorageAccount.Id -HyperVGeneration $HyperVGen
|
|
|
|
#Create Managed disk
|
|
$NewManagedDisk = New-AzDisk -DiskName $NewDiskName -Disk $diskConfig -ResourceGroupName $resourceGroupName
|
|
|
|
$VM | Stop-AzVM -Force
|
|
|
|
# Set the VM configuration to point to the new disk
|
|
Set-AzVMOSDisk -VM $VM -ManagedDiskId $NewManagedDisk.Id -Name $NewManagedDisk.Name
|
|
|
|
# Update the VM with the new OS disk
|
|
Update-AzVM -ResourceGroupName $resourceGroupName -VM $VM
|
|
|
|
$VM | Start-AzVM
|
|
|
|
start-sleep 180
|
|
# Please check the VM is running before proceeding with the below tidy-up steps
|
|
|
|
# Delete old Managed Disk
|
|
Remove-AzDisk -ResourceGroupName $resourceGroupName -DiskName $DiskName -Force;
|
|
|
|
# Delete old blob storage
|
|
$osdisk | Remove-AzStorageBlob -Force
|
|
|
|
# Delete temp storage account
|
|
$StorageAccount | Remove-AzStorageAccount -Force
|