Get-ChildItem "XDHyp:\HostingUnits\"

Start-BrokerRebootCycle -InputObject @(<Machine Catalog Name>) -RebootDuration 120 -WarningDuration 15 -WarningMessage <message> -WarningTitle <message>

#---------------------------------------------------------------------------
## Author: Aaron Parker
## Desc:   Using PowerShell to update a XenDesktop 7.x machine catalog 
## Date:   Oct 27, 2014
## Site:   http://stealthpuppy.com
#---------------------------------------------------------------------------

## Set variables for the target infrastructure
## ----------
$adminAddress = 'xd71.home.stealthpuppy.com' #The XD Controller we're going to execute against
$xdControllers = 'xd71.home.stealthpuppy.com'

## Hypervisor and storage resources
## These need to be configured in Studio prior to running this script
## This script is hypervisor and management agnostic - just point to the right infrastructure
$storageResource = "HV2-EVOPro" #Storage
$hostResource = "Lab vCenter" #Hypervisor management

## Master image properties
$machineCatalogName = "Windows 8 vSphere"
$masterImage ="Windows8*"
$snapshot = "VDA 7.6"

$messageDetail = "Your computer has been updated and will be automatically restarted in 15 minutes."
$messageTitle = "Help desk message"
## ----------

## Load the Citrix PowerShell modules
Write-Verbose "Loading Citrix XenDesktop modules."
Add-PSSnapin Citrix*

## Get information from the hosting environment via the XD Controller
## Get the storage resource
Write-Verbose "Gathering storage and hypervisor connections from the XenDesktop infrastructure."
$hostingUnit = Get-ChildItem -AdminAddress $adminAddress "XDHyp:\HostingUnits" | Where-Object { $_.PSChildName -like $storageResource } | Select-Object PSChildName, PsPath
## Get the hypervisor management resources
$hostConnection = Get-ChildItem -AdminAddress $adminAddress "XDHyp:\Connections" | Where-Object { $_.PSChildName -like $hostResource }

## Get the broker connection to the hypervisor management
## http://support.citrix.com/proddocs/topic/citrix-broker-admin-v2-xd75/get-brokerhypervisorconnection-xd75.html
$brokerHypConnection = Get-BrokerHypervisorConnection -AdminAddress $adminAddress -HypHypervisorConnectionUid $hostConnection.HypervisorConnectionUid

## Set a provisioning scheme for the update process
## http://support.citrix.com/proddocs/topic/citrix-machinecreation-admin-v2-xd75/set-provschememetadata-xd75.html
$ProvScheme = Set-ProvSchemeMetadata -AdminAddress $adminAddress -Name 'ImageManagementPrep_DoImagePreparation' -ProvisioningSchemeName $machineCatalogName -Value 'True'

## Get the master VM image from the same storage resource we're going to deploy to. Could pull this from another storage resource available to the host
Write-Verbose "Getting the snapshot details for the catalog: $machineCatalogName"
$VM = Get-ChildItem -AdminAddress $adminAddress "XDHyp:\HostingUnits\$storageResource" | Where-Object { $_.ObjectType -eq "VM" -and $_.PSChildName -like $masterImage }
## Get the snapshot details. This code will grab a specific snapshot, although you could grab the last in the list assuming it's the latest.
$VMSnapshots = Get-ChildItem -AdminAddress $adminAddress $VM.FullPath -Recurse -Include *.snapshot
$TargetSnapshot = $VMSnapshots | Where-Object { $_.FullName -eq "$snapshot.snapshot" }

## Publish the image update to the machine catalog
## http://support.citrix.com/proddocs/topic/citrix-machinecreation-admin-v2-xd75/publish-provmastervmimage-xd75.html
$PubTask = Publish-ProvMasterVmImage -AdminAddress $adminAddress -MasterImageVM $TargetSnapshot.FullPath -ProvisioningSchemeName $machineCatalogName -RunAsynchronously
$provTask = Get-ProvTask -AdminAddress $adminAddress -TaskId $PubTask

## Track progress of the image update
Write-Verbose "Tracking progress of the machine creation task."
$totalPercent = 0
While ( $provTask.Active -eq $True ) {
    Try { $totalPercent = If ( $provTask.TaskProgress ) { $provTask.TaskProgress } Else {0} } Catch { }

    Write-Progress -Activity "Provisioning image update" -Status "$totalPercent% Complete:" -percentcomplete $totalPercent
    Sleep 15
    $provTask = Get-ProvTask -AdminAddress $adminAddress -TaskId $PubTask
}

## Start the desktop reboot cycle to get the update to the actual desktops
## http://support.citrix.com/proddocs/topic/citrix-broker-admin-v2-xd75/start-brokerrebootcycle-xd75.html
Start-BrokerRebootCycle -AdminAddress $adminAddress -InputObject @($machineCatalogName) -RebootDuration 60 -WarningDuration 15 -WarningMessage $messageDetail -WarningTitle $messageTitle

Function Set-CtxAppvConfig {
    <#
        .SYNOPSIS
            Sets new App-V publishing information in a XenDesktop site.
 
        .DESCRIPTION
            This function can be used to set or add App-V publishing information in a XenDesktop or XenApp 7.x site.
 
        .PARAMETER AdminAddress
            Specifies a remote XenDesktop controller to apply the configuration against. If omitted, the local host will be used instead.
 
        .PARAMETER AppvMgmtSvr
            Specifies a remote XenDesktop controller to apply the configuration against. If omitted, the local host will be used instead.
 
        .PARAMETER AppvPubSvr
            Specifies a remote XenDesktop controller to apply the configuration against. If omitted, the local host will be used instead.
 
        .PARAMETER Description
            Specifies a remote XenDesktop controller to apply the configuration against. If omitted, the local host will be used instead.
 
        .EXAMPLE
            Set-CtxAppvConfig -AdminAddress 'xd71.home.stealthpuppy.com' -AppvMgmtSvr 'http://appv1:8080' -AppvPubSvr 'http://appv1:80' -Description 'Created by PowerShell'
 
        .NOTES
 
        .LINK
    #>
    param(
        [Parameter(Mandatory = $false, Position = 0, HelpMessage = "XenDesktop Controller address.")]
        [string]$AdminAddress = 'localhost',

        [Parameter(Mandatory = $true, Position = 1, HelpMessage = "Microsoft App-V Management Server address.")]
        [string]$AppvMgmtSvr = $(throw = "Please specify an App-V Management Server address."),

        [Parameter(Mandatory = $true, Position = 2, HelpMessage = "Microsoft App-V Publishing Server address.")]
        [string]$AppvPubSvr = $(throw = "Please specify an App-V Publishing Server address."),

        [Parameter(Mandatory = $true, Position = 2, HelpMessage = "App-V publishing configuration description.")]
        [string]$Description = $(throw = "Specify a description to apply to the App-V publishing information. Specify 'Created by Studio' to set the App-V publishing inforamtion viewed in Citrix Studio.")
    )

    Function Add-AppvConfig {
        # Add the AppV Server settings to the new specified settings
        Write-Verbose "Setting App-V Management Server to specified URI."
        #http://support.citrix.com/proddocs/topic/citrix-appv-admin-v1-xd71/new-ctxappvserver-xd71.html
        $newAppvConfig = New-CtxAppVServer -ManagementServer $AppvMgmtSvr -PublishingServer $AppvPubSvr

        # Applying configuration to the site
        Write-Verbose "Saving configuration to the site."
        #http://support.citrix.com/proddocs/topic/citrix-broker-admin-v2-xd75/new-brokermachineconfiguration-xd75.html
        $machineConfig = New-BrokerMachineConfiguration -AdminAddress $AdminAddress -ConfigurationSlotUid 3 -LeafName 1 -Description "Created by Studio" -Policy $newAppvConfig -Verbose
    }

    # Obtain FQDN from Management server URL
    $urlGroups = [regex]::Match($AppvMgmtSvr, '^(?&lt;protocol&gt;(http|https))://(?&lt;fqdn&gt;([^:]*))((:(?&lt;port&gt;\d+))?)').Groups

    # Test specified Management Server.
    Write-Verbose "Testing Management Server."
    If (Test-CtxAppVServer -AppVManagementServer $urlGroups["fqdn"].Value -ErrorAction SilentlyContinue -ErrorVariable $manError) {
        Write-Verbose "Management Server tested OK."

        # Test specified Publishing Server
        Write-Verbose "Testing Publishing Server."
        If (Test-CtxAppVServer -AppVPublishingServer $AppvPubSvr -ErrorAction SilentlyContinue -ErrorVariable $pubError) {
            Write-Verbose "Publishing Server tested OK."
            # Get any existing AppV configuration from the broker
            #http://support.citrix.com/proddocs/topic/citrix-broker-admin-v2-xd71/get-brokermachineconfiguration-xd71.html
            If ($Config) { Remove-Variable Config }
            $Config = Get-BrokerMachineConfiguration -AdminAddress $AdminAddress -Name AppV* -ErrorAction SilentlyContinue

            $cfgMatch = $False
            If ($Config) {
                ForEach ($cfg in $Config) {

                    # Grab the AppV configuration details
                    #http://support.citrix.com/proddocs/topic/citrix-appv-admin-v1-xd71/get-ctxappvserver-xd71.html
                    $appvConfig = Get-CtxAppVServer -ByteArray $cfg.Policy

                    # If the existing Management Server matches the specified Management Server
                    If (($appvConfig.ManagementServer -eq $AppvMgmtSvr) -and ($appvConfig.PublishingServer -eq $AppvPubSvr)) {
                        Write-Verbose "Specified config matches existing config."
                        $cfgMatch = $True
                    }
                }

                If (!($cfgMatch)) {
                    # Add config
                    Add-AppvConfig
                }
                Else {
                    Write-Verbose "App-V configuration already exists."
                }
            }
            Else {
                # Add config
                Add-AppvConfig
            }
        }
        Else {
            Write-Error "[Aborting] App-V Publishing Server test failed with: $pubError"
        }
    }
    Else {
        Write-Error "[Aborting] App-V Management Server test failed with: $manError"
    }
}