AzureRm.AvailabilitySet.CoreHelper.psm1
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<#
.SYNOPSIS AzureRm.AvailabilitySet.CoreHelper.psm1 - Contains helper functions. .DESCRIPTION Contains helper functions. #> function GetParameterNameFromValue { [CmdletBinding()] param ( [Parameter(Mandatory=$true)] [string]$VMName, [Parameter(Mandatory=$true)] $parameterSection ) foreach ($prop in $parameterSection.psobject.Properties) { if ($prop.value.defaultValue -ieq $VMName.ToLower()) { return $prop.Name } } } function Add-AzureRmAvSetVmToAvailabilitySet { <# .SYNOPSIS Add-AzureRmAvSetVmToAvailabilitySet - This sample cmdlet adds/moves a VM(s) to an availability sets through exporting, deleting the original VM and importing it back. .DESCRIPTION Add-AzureRmAvSetVmToAvailabilitySet - This sample cmdlet adds/moves a VM(s) to an availability sets through exporting, deleting the original VM and importing it back. .PARAMETER ResourceGroup Name of the resource group where the VM resides .PARAMETER VMName List of VMs to be included in the same AV Set, worth it to notice that this VMs needs to be of the same VM Size. e.g. "vm1","vm2" .PARAMETER OsType Which OS type are those VMs, Windows or Linux, this is required when attached an existing OS Disk to a newly created VM. Setting up the wrong OS Name may leave the VM in an unsupported state and unpredictable issues may happen. .PARAMETER AvailabilitySet Name of the existing AvailabilitySet, must be in the same resource group where the VMs resides. .EXAMPLE Add-AzureRmAvSetVmToAvailabilitySet -ResourceGroupName rg-avset-test -VMName vm1 -OsType windows -AvailabilitySet avset .NOTES * Export-AzureRmResourceGroup will export the VM resources whitout any Extension and Diagnostics, so when it is imported back those items will need to be manually added back. * This script deletes the original VM configuration to import it back, a backup of the template is always made and can be used to reinstantiate the VM as they were before. * It is strongly recommended to have a full backup of the VM and test it before allowing the script to delete the VM. * Execution of this script is at your own risk. #> [CmdletBinding(SupportsShouldProcess=$true, ConfirmImpact="High")] param ( [Parameter(Mandatory=$true)] [string]$ResourceGroupName, [Parameter(Mandatory=$true)] [string[]]$VMName, [Parameter(Mandatory=$true)] [validateSet("windows","linux",IgnoreCase=$true)] [string]$OsType, [Parameter(Mandatory=$true)] [string]$AvailabilitySet ) $ErrorActionPreference = [System.Management.Automation.ActionPreference]::Stop $ExecutionTimeStamp = Get-Date -Format 'yyyy-MM-dd_hhmmss' $originalTemplateFile = [System.IO.Path]::Combine($PSScriptRoot,[string]::Format("{0}-{1}.json","OriginalTemplate",$ExecutionTimeStamp)) Write-Verbose "Original resource group ARM template file name: $originalTemplateFile" -Verbose $newTemplateFile = [System.IO.Path]::Combine($PSScriptRoot,[string]::Format("{0}-{1}.json","NewTemplate",$ExecutionTimeStamp)) Write-Verbose "New resource group ARM template file name: $newTemplateFile" -Verbose try { # Getting the existing AvailabilitySet Write-Verbose "Getting the existing AvailabilitySet" -Verbose $avset = Get-AzureRmAvailabilitySet -ResourceGroupName $ResourceGroupName -Name $AvailabilitySet -ErrorAction SilentlyContinue if ($avSet -eq $null) { throw "Availability Set $AvailabilitySet not found at Resource Group $ResourceGroupName." } # Exporting resource group Write-Verbose "Exporting resource group" -Verbose Export-AzureRmResourceGroup -ResourceGroupName $ResourceGroupName -Path $originalTemplateFile -IncludeParameterDefaultValue -force # Reading original template file $rgdef = Get-Content $originalTemplateFile | ConvertFrom-Json # Removing AdminPassword parameters that are not used when importing an existing Os Disk foreach ($prop in $rgdef.parameters.psobject.Properties) { if ($prop.name.contains("adminPassword") -or $prop.name.contains("primary") -or $prop.name.contains("extensions_Microsoft.")) { $rgdef.parameters.psobject.Properties.Remove($prop.Name) } } # Filtering resources for only VMs that will be included $resources = @() foreach ($vm in $VMName) { $vmNameParameterName = GetParameterNameFromValue -VMName $vm -parameterSection $rgdef.parameters $resources += $rgdef.resources | ? {$_.type -eq "Microsoft.Compute/virtualMachines" -and $_.name.Contains($vmNameParameterName)} } $rgdef.resources = $resources # Checking if all VMs are of the same size $vmSize = @() $vmSize += $rgdef.resources.properties.hardwareProfile | Select-Object -Unique if ($vmSize -eq 1) { throw "Not all VMs are the same size, Availability Sets only accepts VMs of the same size" } # Changing original VM resources to attach disks and add to the availability set foreach ($vmResource in $rgdef.resources) { # Checking Availability Set Alignment according to managed or unmanaged disks if ($vmResource.properties.storageProfile.osDisk.psobject.Properties["vhd"] -eq $null) { if ($avset.Sku -ne "Aligned") { throw "VM is using Managed disks and the Availability is not aligned with Managed Disks" } } else { if ($avset.Sku -ne "Classic") { throw "VM is using UnManaged Disks and Availability set should be Classic type." } } # Removing any dependencies since they already exists $vmResource.dependsOn = $null # Changing OS Disk to attach insted of using FromImage since this VM was already deployed $vmResource.properties.storageProfile.osDisk.createOption = "Attach" # Nullifying osProfile since this is used during a new deployment only if ($vmResource.properties.psobject.Properties["osProfile"] -ne $null) { $vmResource.properties.osProfile = $null } # Required by the Platform, adding the OsType parameter if ([string]::IsNullOrEmpty($vmResource.properties.storageProfile.osDisk.osType)) { $vmResource.properties.storageProfile.osDisk | Add-Member -Type NoteProperty -Name "osType" -Value $osType.ToLower() } # Nullifying ImageReference since this is only for new VMs if ($vmResource.properties.storageProfile.psobject.Properties["imageReference"] -ne $null) { $vmResource.properties.storageProfile.imageReference = $null } # Changing creation option of data disks to Attach instead of new if ($vmResource.properties.storageProfile.dataDisks.Count -gt 0) { foreach ($datadisk in $vmResource.properties.storageProfile.dataDisks) { $datadisk.createOption = "Attach" } } # Removing Primary attribute of network Id foreach ($nic in $vmResource.properties.networkProfile.networkInterfaces) { if ($nic.properties -ne $null) { if ($nic.properties.psobject.Properties["primary"] -ne $null) { $nic.properties.psobject.properties.remove("primary") } } } # Adding Availability Set Id to VM foreach ($properties in $vmResource.Properties) { if ([string]::IsNullOrEmpty($vmResource.properties.availabilitySet)) { $properties | Add-Member -Type NoteProperty -Name "availabilitySet" -Value @{"id"=$avset.id} } else { $properties.availabilitySet = @{"id"=$avset.id} } } } # Generating the new JSON Template to be executed to import the VMs back. Write-Verbose "Generating the new JSON Template to be executed to import the VMs back." -Verbose if ($rgdef.resources.count -gt 0) { $rgdef | ConvertTo-Json -Depth 100 | % {$_.replace("\u0027","`'")} | Out-File $newTemplateFile if ($PSCmdlet.ShouldProcess($ResourceGroupName,"Confirm that VMs can be excluded from resource group (VHDs are preserved)?")) { Test-AzureRmResourceGroupDeployment -ResourceGroupName $ResourceGroupName ` -Mode Incremental ` -TemplateFile $newTemplateFile ` -Verbose foreach ($item in $VMName) { # Stopping VMs and removing their deployment Write-Verbose "Stopping VM $item" -Verbose $vm = Get-AzureRmVM -ResourceGroupName $ResourceGroupName -Name $item -Status if ($vm -ne $null) { if ($vm.statuses[1].Code -ne "PowerState/deallocated") { Stop-AzureRmVM -ResourceGroupName $ResourceGroupName -Name $item -Force } Write-Verbose "Deleting VM $item from Resource Group $ResourceGroupName (VHDs are preserved and VMs will be imported in the next steps)" -Verbose Remove-AzureRmVM -ResourceGroupName $ResourceGroupName -Name $item -Force } } Write-Verbose "Deploying the new template." -Verbose New-AzureRmResourceGroupDeployment -Name "SettingUpAvailabilitySets-$ExecutionTimeStamp" ` -ResourceGroupName $ResourceGroupName ` -Mode Incremental ` -TemplateFile $newTemplateFile ` -Force -Verbose } } else { throw "Resouces section of template is empty after transformations, aborting operation." } } catch { Write-Error "An error ocurred: $_" } } function Remove-AzureRmAvSetVmFromAvailabilitySet { <# .SYNOPSIS Remove-AzureRmAvSetVmFromAvailabilitySet - This sample cmdlet removes a VM(s) from an availability set through exporting, deleting the original VM and importing it back. .DESCRIPTION Remove-AzureRmAvSetVmFromAvailabilitySet - This sample cmdlet removes a VM(s) from an availability set through exporting, deleting the original VM and importing it back. .PARAMETER ResourceGroup Name of the resource group where the VM resides .PARAMETER VMName VM to be included in the same AV Set, worth it to notice that this VMs needs to be of the same VM Size. e.g. "vm1" .PARAMETER OsType Which OS type are those VMs, Windows or Linux, this is required when attached an existing OS Disk to a newly created VM. Setting up the wrong OS Name may leave the VM in an unsupported state and unpredictable issues may happen. .EXAMPLE Remove-AzureRmAvSetVmFromAvailabilitySet -ResourceGroupName rg-avset-test -VMName vm1 -OsType windows .NOTES * Export-AzureRmResourceGroup will export the VM resources whitout any Extension and Diagnostics, so when it is imported back those items will need to be manually added back. * This script deletes the original VM configuration to import it back, a backup of the template is always made and can be used to reinstantiate the VM as they were before. * It is strongly recommended to have a full backup of the VM and test it before allowing the script to delete the VM. * Execution of this script is at your own risk. #> [CmdletBinding(SupportsShouldProcess=$true, ConfirmImpact="High")] param ( [Parameter(Mandatory=$true)] [string]$ResourceGroupName, [Parameter(Mandatory=$true)] [string]$VMName, [Parameter(Mandatory=$true)] [validateSet("windows","linux",IgnoreCase=$true)] [string]$OsType ) $ErrorActionPreference = [System.Management.Automation.ActionPreference]::Stop $ExecutionTimeStamp = Get-Date -Format 'yyyy-MM-dd_hhmmss' $originalTemplateFile = [System.IO.Path]::Combine($PSScriptRoot,[string]::Format("{0}-{1}.json","OriginalTemplate",$ExecutionTimeStamp)) Write-Verbose "Original resource group ARM template file name: $originalTemplateFile" -Verbose $newTemplateFile = [System.IO.Path]::Combine($PSScriptRoot,[string]::Format("{0}-{1}.json","NewTemplate",$ExecutionTimeStamp)) Write-Verbose "New resource group ARM template file name: $newTemplateFile" -Verbose try { # Exporting resource group Write-Verbose "Exporting resource group" -Verbose Export-AzureRmResourceGroup -ResourceGroupName $resourceGroupName -Path $originalTemplateFile -IncludeParameterDefaultValue -force # Reading original template file $rgdef = Get-Content $originalTemplateFile | ConvertFrom-Json # Removing AdminPassword parameters that are not used when importing an existing Os Disk foreach ($prop in $rgdef.parameters.psobject.Properties) { if ($prop.name.contains("adminPassword") -or $prop.name.contains("primary") -or $prop.name.contains("extensions_Microsoft.")) { $rgdef.parameters.psobject.Properties.Remove($prop.Name) } } # Filtering resources for only VM that will be included $resources = @() $vmNameParameterName = GetParameterNameFromValue -VMName $VMName -parameterSection $rgdef.parameters $resources += $rgdef.resources | ? {$_.type -eq "Microsoft.Compute/virtualMachines" -and $_.name.Contains($vmNameParameterName)} # Checking if VM is attached to a loadbalancer and removes the NIC from it if ($resources.properties.networkProfile.networkInterfaces.Count -gt 1) { throw "This script supports VMs with only one nic." } $networkId = $resources.properties.networkProfile.networkInterfaces.id $regex = "`'(\w*)[`']" $templateNicRef = (([regex]$regex).Matches($networkId))[0].Value $nicResource = $rgdef.resources | ? {$_.type -eq "Microsoft.Network/networkInterfaces" -and $_.name.Contains($templateNicRef)} if (!([string]::IsNullOrEmpty($nicResource.properties.ipconfigurations.properties.psobject.Properties["loadBalancerBackendAddressPools"])) -or !([string]::IsNullOrEmpty($nicResource.properties.ipconfigurations.properties.psobject.Properties["loadBalancerInboundNatRules"]))) { if (!([string]::IsNullOrEmpty($nicResource.properties.ipconfigurations.properties.psobject.Properties["loadBalancerBackendAddressPools"]))) { Write-Warning "VM is attached to a load balancer, removing NIC from load balancer backend address pool, consider reviewing this VM later to make sure any manual procedure must be executed in order to restablish connectivity. E.g. creating a public ip address and associating with the NIC plus Network Security Groups." -Verbose $nicResource.properties.ipconfigurations.properties.psobject.Properties.Remove("loadBalancerBackendAddressPools") } if (!([string]::IsNullOrEmpty($nicResource.properties.ipconfigurations.properties.psobject.Properties["loadBalancerInboundNatRules"]))) { Write-Warning "VM is attached to a load balancer, removing NIC from load balancer inbond net rules, consider reviewing this VM later to make sure any manual procedure must be executed in order to restablish connectivity. E.g. creating a public ip address and associating with the NIC plus Network Security Groups." -Verbose $nicResource.properties.ipconfigurations.properties.psobject.Properties.Remove("loadBalancerInboundNatRules") } $nicResource.dependsOn = $null $resources += $nicResource $resources } $rgdef.resources = $resources # Checking if any VM has returned from the initial filtering $vm = $rgdef.resources | ? {$_.type -eq "Microsoft.Compute/virtualMachines"} if ($vm -eq $null) { throw "VM $VMName does not exist, exiting processing" } # Getting Nic resource $nic = $rgdef.resources | ? {$_.type -eq "Microsoft.Network/networkInterfaces"} # Changing original VM resources to attach disks and to remove the availability set foreach ($vmResource in ($rgdef.resources | ? {$_.type -eq "Microsoft.Compute/virtualMachines"})) { # Removing any dependencies since they already exists adding nic $vmResource.dependsOn = @() if($nic -ne $null) { $vmResource.dependsOn += [string]::Format("[concat('Microsoft.Network/networkInterfaces/','{0}')]",$rgdef.parameters.psobject.Properties[$templateNicRef.replace("'","")].Value.defaultValue) } # Changing OS Disk to attach insted of using FromImage since this VM was already deployed $vmResource.properties.storageProfile.osDisk.createOption = "Attach" # Nullifying osProfile since this is used during a new deployment only if ($vmResource.properties.psobject.Properties["osProfile"] -ne $null) { $vmResource.properties.osProfile = $null } # Required by the Platform, adding the OsType parameter if ([string]::IsNullOrEmpty($vmResource.properties.storageProfile.osDisk.osType)) { $vmResource.properties.storageProfile.osDisk | Add-Member -Type NoteProperty -Name "osType" -Value $osType.ToLower() } # Nullifying ImageReference since this is only for new VMs if ($vmResource.properties.storageProfile.psobject.Properties["imageReference"] -ne $null) { $vmResource.properties.storageProfile.imageReference = $null } # Changing creation option of data disks to Attach instead of new if ($vmResource.properties.storageProfile.dataDisks.Count -gt 0) { foreach ($datadisk in $vmResource.properties.storageProfile.dataDisks) { $datadisk.createOption = "Attach" } } # Removing Primary attribute of network Id foreach ($vmNicSetting in $vmResource.properties.networkProfile.networkInterfaces) { if ($vmNicSetting.properties -ne $null) { if ($vmNicSetting.properties.psobject.Properties["primary"] -ne $null) { $vmNicSetting.properties.psobject.properties.remove("primary") } } } # Removing Availability Set from VM foreach ($properties in $vmResource.Properties) { if (!([string]::IsNullOrEmpty($properties.availabilitySet))) { $properties.psobject.Properties.Remove("availabilitySet") } } } # Generating the new JSON Template to be executed to import the VMs back. Write-Verbose "Generating the new JSON Template to be executed to import the VMs back." -Verbose if ($rgdef.resources.count -gt 0) { $rgdef | ConvertTo-Json -Depth 100 | % {$_.replace("\u0027","`'")} | Out-File $newTemplateFile if ($PSCmdlet.ShouldProcess($ResourceGroupName,"Confirm that VMs can be excluded from resource group (VHDs are preserved)?")) { $vm = Get-AzureRmVM -ResourceGroupName $ResourceGroupName -Name $VMName -Status -ErrorAction SilentlyContinue if ($vm -ne $null) { if ($vm.statuses[1].Code -ne "PowerState/deallocated") { Stop-AzureRmVM -ResourceGroupName $ResourceGroupName -Name $VMName -Force } Write-Verbose "Deleting VM $vmName from Resource Group $ResourceGroupName (VHDs are preserved and VMs will be imported in the next steps)" -Verbose Remove-AzureRmVM -ResourceGroupName $ResourceGroupName -Name $VMName -Force } # deleting Nic if it is attached to a load balancer, nic will be recreated through the modified template if ($nic -ne $null) { Remove-AzureRmNetworkInterface -ResourceGroupName $ResourceGroupName -Name $rgdef.parameters.psobject.Properties[$templateNicRef.replace("'","")].Value.defaultValue -Force } Write-Verbose "Deploying the new template with VM removed from avset" -Verbose New-AzureRmResourceGroupDeployment -Name "RemovingAvailabilitySets-$ExecutionTimeStamp" ` -ResourceGroupName $resourceGroupName ` -Mode Incremental ` -TemplateFile $newTemplateFile ` -Force -Verbose } } else { throw "Resouces section of template is empty after transformations, aborting operation." } } catch { Write-Error "An error ocurred: $_" } } |