Public/Start-AvdSessionHost.ps1
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function Start-AvdSessionHost { <# .SYNOPSIS Starts AVD Session hosts in a specific hostpool. .DESCRIPTION This function starts sessionshosts in a specific Azure Virtual Desktop hostpool. If you want to start a specific session host then also provide the name, .PARAMETER HostpoolName Enter the AVD Hostpool name .PARAMETER ResourceGroupName Enter the AVD Hostpool resourcegroup name .PARAMETER SessionHostName Enter the session hosts name .EXAMPLE Start-AvdSessionHost -HostpoolName avd-hostpool-personal -ResourceGroupName rg-avd-01 .EXAMPLE Start-AvdSessionHost -HostpoolName avd-hostpool-personal -ResourceGroupName rg-avd-01 -SessionHostName avd-host-1.avd.domain #> [CmdletBinding(DefaultParameterSetName = 'All')] param ( [parameter(Mandatory, ParameterSetName = 'All')] [parameter(Mandatory, ParameterSetName = 'Hostname')] [ValidateNotNullOrEmpty()] [string]$HostpoolName, [parameter(Mandatory, ParameterSetName = 'All')] [parameter(Mandatory, ParameterSetName = 'Hostname')] [ValidateNotNullOrEmpty()] [string]$ResourceGroupName, [parameter(Mandatory, ParameterSetName = 'Hostname')] [ValidateNotNullOrEmpty()] [string]$Name, # [ValidatePattern('^(?:(?!\/).)*$', ErrorMessage = "It looks like you also provided a hostpool, a sessionhost name is enough. Provided value {0}")] [parameter(Mandatory, ParameterSetName = 'Resource', ValueFromPipelineByPropertyName)] [ValidateNotNullOrEmpty()] [object]$Id, [parameter(ParameterSetName = 'All')] [ValidateNotNullOrEmpty()] [switch]$Force ) Begin { Write-Verbose "Starting session hosts" $sessionHostParameters = @{ hostpoolName = $HostpoolName resourceGroupName = $ResourceGroupName } $hostState = 'running' } Process { switch ($PsCmdlet.ParameterSetName) { All { CheckForce -Force:$force -Task $MyInvocation.MyCommand } Hostname { $Name = ConcatSessionHostName -name $Name $sessionHostParameters.Add("Name", $Name) } Resource { Write-Verbose "Got a resource object, looking for $Id" $sessionHostParameters = @{ Id = $Id } } default { } } try { $sessionHosts = Get-AvdSessionHostResources @sessionHostParameters } catch { Throw "No sessionhosts ($name) found in $HostpoolName ($ResourceGroupName), $_" } $sessionHosts | ForEach-Object { try { Write-Verbose "[Start-AvdSessionHost] - Found $($sessionHosts.Count) host(s)" Write-Verbose "[Start-AvdSessionHost] - Starting $($_.name)" $apiVersion = "?api-version=2021-11-01" $powerOnParameters = @{ uri = "{0}{1}/start{2}" -f $global:AzureApiUrl, $_.vmResources.id, $apiVersion Method = "POST" } Request-Api @powerOnParameters $initialState = Get-AvdSessionHostPowerState -Id $_.id if ($initialState.powerstate -eq $hostState) { Write-Information "$($_.name) is already $hostState" -InformationAction Continue Continue } else { do { $state = Get-AvdSessionHostPowerState -Id $_.id Write-Information "[Start-AvdSessionHost] - Checking $($_.name) powerstate for $hostState, current state $($state.powerstate)" -InformationAction Continue Start-Sleep 3 } while ($state.powerstate -ne $hostState) } } catch { Throw "[Start-AvdSessionHost] - Not able to start $($_.name), $_" } } } } |