How we can create SessionHost in Azure Virtual Desktop using Azure Powershell?

Try this:

1. Create the Virtual Machines: You can use the New-AzVM cmdlet to create the VMs. Here’s a basic example:

   $vmConfig = New-AzVMConfig -VMName "SessionHostVM" -VMSize "Standard_D2s_v3"
   $vm = New-AzVM -ResourceGroupName "YourResourceGroup" -Location "YourLocation" -VM $vmConfig

    

2. Generate a Registration Key: You need a registration key to register the VMs as session hosts. Use the New-AzWVDRegistrationInfo cmdlet:

   $registrationInfo = New-AzWVDRegistrationInfo -ResourceGroupName "YourResourceGroup" -HostPoolName "YourHostPool"
   $registrationToken = $registrationInfo.Token

    

3. Install the Azure Virtual Desktop Agent: On each VM, install the Azure Virtual Desktop Agent and register the VM using the registration token. This can be done via a script executed on the VM:

   Invoke-WebRequest -Uri "https://aka.ms/wvd/agent" -OutFile "C:\WVD\InstallAgent.ps1"
   Invoke-WebRequest -Uri "https://aka.ms/wvd/agentbootloader" -OutFile "C:\WVD\InstallBootloader.ps1"
   & "C:\WVD\InstallAgent.ps1"
   & "C:\WVD\InstallBootloader.ps1"
   & "C:\Program Files\Microsoft RDInfra\WVD\Agent\RDAgentBootLoader.exe" $registrationToken

    

4. Verify the Session Hosts: Use the Get-AzWvdSessionHost cmdlet to verify that the VMs have been registered as session hosts:

   Get-AzWvdSessionHost -ResourceGroupName "YourResourceGroup" -HostPoolName "YourHostPool"