Public/Add-AvdApplicationGroupPermissions.ps1
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function Add-AvdApplicationGroupPermissions { <# .SYNOPSIS Adds permissions to an Azure Virtual Desktop Applicationgroup .DESCRIPTION The function will add permissions to an Azure Virtual Desktop Applicationgroup. This can be a user or a group. .PARAMETER ApplicationGroupName Enter the AVD application group name .PARAMETER ResourceGroupName Enter the AVD application group resourcegroup name .PARAMETER UserPrincipalName Provide the user principal name (eg. user@domain.com) .PARAMETER GroupName Provide the group name (eg. All Users) .EXAMPLE Add-AvdApplicationGroupPermissions -ApplicationGroupName avd-application-group -ResourceGroupName rg-avd-01 -UserPrincipalName user@domain.com .EXAMPLE Add-AvdApplicationGroupPermissions -ApplicationGroupName avd-application-group -ResourceGroupName rg-avd-01 -GroupName "All Users" #> [CmdletBinding(DefaultParameterSetName = 'Name')] param ( [parameter(Mandatory, ParameterSetName = 'Group')] [parameter(Mandatory, ParameterSetName = 'PrincipalId')] [parameter(Mandatory, ParameterSetName = 'User')] [ValidateNotNullOrEmpty()] [string]$ApplicationGroupName, [parameter(Mandatory, ParameterSetName = 'Group')] [parameter(Mandatory, ParameterSetName = 'PrincipalId')] [parameter(Mandatory, ParameterSetName = 'User')] [ValidateNotNullOrEmpty()] [string]$ResourceGroupName, [parameter(Mandatory, ParameterSetName = 'ResourceId-User')] [parameter(Mandatory, ParameterSetName = 'ResourceId-Group')] [parameter(Mandatory, ParameterSetName = 'ResourceId-PrincipalId')] [ValidateNotNullOrEmpty()] [string]$ResourceId, [parameter(Mandatory, ParameterSetName = 'ResourceId-User')] [parameter(Mandatory, ParameterSetName = 'Name-User')] [ValidateNotNullOrEmpty()] [string]$UserPrincipalName, [parameter(Mandatory, ParameterSetName = 'ResourceId-Group')] [parameter(Mandatory, ParameterSetName = 'Name-Group')] [ValidateNotNullOrEmpty()] [string]$GroupName, [parameter(Mandatory, ParameterSetName = 'ResourceId-PrincipalId')] [parameter(Mandatory, ParameterSetName = 'Name-PrincipalId')] [ValidateNotNullOrEmpty()] [string]$PrincipalId ) Begin { Write-Verbose "Start searching" AuthenticationCheck $apiVersion = "?api-version=2021-04-01-preview" $token = GetAuthToken -resource $global:AzureApiUrl } Process { $graphToken = GetAuthToken -resource $global:GraphApiUrl switch -Wildcard ($PsCmdlet.ParameterSetName) { *User { Write-Verbose "UPN $UserPrincipalName provided, looking for user in Azure AD" $graphUrl = $global:GraphApiUrl + "/" + $global:GraphApiVersion + "/users/" + $UserPrincipalName $identityInfo = (Invoke-RestMethod -Method GET -Uri $graphUrl -Headers $graphToken).id } *Group { Write-Verbose "Group name $GroupName provided, looking for group in Azure AD" $graphUrl = $global:GraphApiUrl + "/" + $global:GraphApiVersion + "/groups?`$filter=displayName eq '$GroupName'" $identityInfo = (Invoke-RestMethod -Method GET -Uri $graphUrl -Headers $graphToken).value.id } *PrincipalId { Write-Verbose "looking for principal $PrincipalId in Azure AD" $identityInfo = $PrincipalId } Default { Write-Error "No UPN, group name or principal ID is provided" } } if ($ApplicationGroupName) { $applicationGroup = Get-AvdApplicationGroup -ApplicationGroupName $ApplicationGroupName -ResourceGroupName $ResourceGroupName } else { $applicationGroup = Get-AvdApplicationGroup -resourceId $ResourceId } $guid = (New-Guid).Guid $url = $global:AzureApiUrl + "/" + $applicationGroup.id + "/providers/Microsoft.Authorization/roleAssignments/$($guid)" + $apiVersion # Used ID 1d18fff3-a72a-46b5-b4a9-0b38a3cd7e63 is default built-in role Desktop Virtualization User. # Source: https://docs.microsoft.com/en-us/azure/role-based-access-control/built-in-roles#desktop-virtualization-user $body = @{ properties = @{ roleDefinitionId = "/subscriptions/" + $global:subscriptionId + "/providers/Microsoft.Authorization/roleDefinitions/1d18fff3-a72a-46b5-b4a9-0b38a3cd7e63" principalId = $identityInfo } } $jsonBody = $body | ConvertTo-Json $parameters = @{ uri = $url Method = "PUT" Headers = $token Body = $jsonBody } Invoke-RestMethod @parameters } } |