Public/New-AutoScaleRole.ps1
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function New-AutoScaleRole { <# .SYNOPSIS Creates a new RBAC role for AVD autoscaling .DESCRIPTION The function will create a new RBAC role and assign it at subscription or resourcegroup level. .PARAMETER RoleName Enter the role name .PARAMETER RoleDescription Enter the role description .PARAMETER ResourceGroupName If you like to scope at resourcegroup level, provide the resourcegroup name. (Default subscription scope) .PARAMETER Assign If you like to assign directly, use this switch parameter .EXAMPLE New-AutoScaleRole RoleName avd-autoscale RoleDescription "Plan for autoscale session hosts" .EXAMPLE New-AutoScaleRole RoleName avd-autoscale RoleDescription "Plan for autoscale session hosts" -resourcegroup rg-avd-001 -Assign #> [CmdletBinding()] param ( [parameter(Mandatory)] [ValidateNotNullOrEmpty()] [string]$RoleName, [parameter(Mandatory)] [ValidateNotNullOrEmpty()] [string]$RoleDescription, [parameter(Mandatory, ParameterSetName = "ResourceGroupScope")] [ValidateNotNullOrEmpty()] [string]$ResourceGroupName, [parameter()] [switch]$Assign ) Begin { Write-Verbose "Start creating a new RBAC for with name $RoleName" AuthenticationCheck $AzureHeader = GetAuthToken -resource $Script:AzureApiUrl $apiVersion = "?api-version=2018-07-01" switch ($PsCmdlet.ParameterSetName) { ResourceGroupScope { Write-Verbose "ResourceGroup provided" $Scope = "/subscriptions/" + $script:subscriptionId + "/resourceGroups/" + $ResourceGroupName } Default { $Scope = "/subscriptions/" + $script:subscriptionId } } } Process { $RoleGuid = (New-Guid).Guid $RoleBody = @{ name = $RoleGuid properties = @{ roleName = $RoleName description = $RoleDescription assignableScopes = @( $Scope ) permissions = @( @{ actions = @( "Microsoft.Compute/virtualMachines/deallocate/action", "Microsoft.Compute/virtualMachines/restart/action", "Microsoft.Compute/virtualMachines/powerOff/action", "Microsoft.Compute/virtualMachines/start/action", "Microsoft.Compute/virtualMachines/read", "Microsoft.DesktopVirtualization/hostpools/read", "Microsoft.DesktopVirtualization/hostpools/write", "Microsoft.DesktopVirtualization/hostpools/sessionhosts/read", "Microsoft.DesktopVirtualization/hostpools/sessionhosts/write", "Microsoft.DesktopVirtualization/hostpools/sessionhosts/usersessions/delete", "Microsoft.DesktopVirtualization/hostpools/sessionhosts/usersessions/sendMessage/action" ) notActions = @() dataActions = @() notDataActions = @() } ) } } $RoleJsonBody = $RoleBody | ConvertTo-Json -Depth 5 $url = $Script:AzureApiUrl + $Scope + "/providers/Microsoft.Authorization/roleDefinitions/" + $RoleGuid + $apiVersion $rbacRole = Invoke-RestMethod -Method PUT -Body $RoleJsonBody -Headers $AzureHeader -URi $url if ($Assign.IsPresent) { $GraphHeader = GetAuthToken -resource $Script:GraphApiUrl $servicePrincipalURL = $Script:GraphApiUrl + "/" +$script:GraphApiVersion + "/servicePrincipals?`$filter=displayName eq 'Windows Virtual Desktop'" $servicePrincipals = Invoke-RestMethod -Method GET -Uri $servicePrincipalURL -Headers $GraphHeader $ServicePrincipals.value.id | ForEach-Object { $assignGuid = (New-Guid).Guid $assignURL = $Script:AzureApiUrl + $Scope + "/providers/Microsoft.Authorization/roleAssignments/" + $AssignGuid + "?api-version=2021-04-01-preview" $assignBody = @{ properties = @{ roleDefinitionId = $rbacRole.id principalId = $_ } } $JsonBody = $assignBody | ConvertTo-Json Invoke-RestMethod -Method PUT -Uri $AssignURL -Headers $AzureHeader -Body $JsonBody } } } } |