Use Tailscale and Moonlight to enable remote gaming

.env.template

@@ -0,0 +1 @@
+export TF_VAR_tailscale_authkey=tskey-auth-XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

.gitignore

@@ -4,3 +4,4 @@ certificates/
 *.tfstate
 *.tfstate.backup
 .DS_Store
+.env

README.md

@@ -0,0 +1,14 @@
+# Remote Gaming using Azure and Moonlight
+
+This terraform template sets up the infrastructur to enable remote gaming / streaming using Moonlight and Azure VM.
+
+# TODO
+
+- [ ] Remove Tailscale plaintext auth-key from provisioning scripts and registry run entry 
+- [ ] Replace Tailscale by native VPN
+- [ ] Check if public IP is even needed
+- [ ] Persist moonlight configuration between deployments
+- [ ] Install Steam
+- [ ] Integrate budget watcher into terraform config
+- [ ] Is there a quicker way to download the installers? Invoke-WebRequest is insanely slow
+- [ ] Skip Windows OOTB tracking bullshit

main.tf

@@ -26,53 +26,14 @@ resource "azurerm_virtual_network" "vnet" {
   address_space       = var.vnet_address_space
 }
 
-# IMPORTANT: GatewaySubnet must be named "GatewaySubnet"
+resource "azurerm_public_ip" "pip" {
-resource "azurerm_subnet" "gateway_subnet" {
+  name                = "${var.prefix}-pip"
-  name                 = "GatewaySubnet"
-  resource_group_name  = azurerm_resource_group.rg.name
-  virtual_network_name = azurerm_virtual_network.vnet.name
-  address_prefixes     = var.gateway_subnet_address_prefixes
-}
-
-resource "azurerm_public_ip" "vpn_gateway_pip" {
-  name                = "${var.prefix}-vpn-gw-pip"
   resource_group_name = azurerm_resource_group.rg.name
   location            = azurerm_resource_group.rg.location
   allocation_method   = "Static"
   sku                 = "Standard"
 }
 
-data "local_sensitive_file" "root_certificate" {
-  filename = "${path.module}/certificates/vpn-root.crt"
-}
-
-resource "azurerm_virtual_network_gateway" "vpn_gw" {
-  name                = "${var.prefix}-vpngw"
-  location            = azurerm_resource_group.rg.location
-  resource_group_name = azurerm_resource_group.rg.name
-
-  type     = "Vpn"
-  vpn_type = "RouteBased"
-
-  sku = var.vpn_gateway_sku
-
-  ip_configuration {
-    name                 = "vpngw-ipcfg"
-    public_ip_address_id = azurerm_public_ip.vpn_gateway_pip.id
-    subnet_id            = azurerm_subnet.gateway_subnet.id
-  }
-
-  # Point-to-site configuration using certificate auth
-  vpn_client_configuration {
-    address_space = var.vpn_client_address_space
-
-    root_certificate {
-      name             = var.root_certificate_name
-      public_cert_data = data.local_sensitive_file.root_certificate.content
-    }
-  }
-}
-
 resource "azurerm_subnet" "workload_subnet" {
   name                 = "${var.prefix}-workload-subnet"
   resource_group_name  = azurerm_resource_group.rg.name
@@ -80,25 +41,6 @@ resource "azurerm_subnet" "workload_subnet" {
   address_prefixes     = var.workload_subnet_address_prefixes
 }
 
-resource "azurerm_network_security_group" "vm_nsg" {
-  name                = "${var.prefix}-vm-nsg"
-  location            = azurerm_resource_group.rg.location
-  resource_group_name = azurerm_resource_group.rg.name
-
-  # Allow RDP from VPN client address pool
-  security_rule {
-    name                       = "Allow-RDP-From-VPN"
-    priority                   = 100
-    direction                  = "Inbound"
-    access                     = "Allow"
-    protocol                   = "Tcp"
-    source_port_range          = "*"
-    destination_port_range     = "3389"
-    source_address_prefixes    = var.vpn_client_address_space
-    destination_address_prefix = "*"
-  }
-}
-
 resource "azurerm_network_interface" "vm_nic" {
   name                = "${var.prefix}-vm-nic"
   location            = azurerm_resource_group.rg.location
@@ -108,14 +50,10 @@ resource "azurerm_network_interface" "vm_nic" {
     name                          = "internal"
     subnet_id                     = azurerm_subnet.workload_subnet.id
     private_ip_address_allocation = "Dynamic"
+    public_ip_address_id          = azurerm_public_ip.pip.id
   }
 }
 
-resource "azurerm_network_interface_security_group_association" "vm_nsg_assoc" {
-  network_interface_id      = azurerm_network_interface.vm_nic.id
-  network_security_group_id = azurerm_network_security_group.vm_nsg.id
-}
-
 resource "random_password" "admin_password" {
   length  = 16
   special = false
@@ -126,7 +64,7 @@ resource "azurerm_windows_virtual_machine" "vm" {
   computer_name       = var.prefix
   resource_group_name = azurerm_resource_group.rg.name
   location            = azurerm_resource_group.rg.location
-  size                = "Standard_NG8ads_V620_v1"
+  size                = var.vm_size
 
   admin_username = var.vm_admin_username
   admin_password = random_password.admin_password.result
@@ -141,9 +79,23 @@ resource "azurerm_windows_virtual_machine" "vm" {
   }
 
   source_image_reference {
-    publisher = "MicrosoftWindowsServer"
+    publisher = "MicrosoftWindowsDesktop"
-    offer     = "WindowsServer"
+    offer     = "Windows-10"
-    sku       = "2019-Datacenter"
+    sku       = "win10-22h2-pro"
     version   = "latest"
   }
 }
+
+resource "azurerm_virtual_machine_extension" "provision_software" {
+  name                 = "provision-software"
+  virtual_machine_id   = azurerm_windows_virtual_machine.vm.id
+  publisher            = "Microsoft.Compute"
+  type                 = "CustomScriptExtension"
+  type_handler_version = "1.10"
+
+  protected_settings = <<SETTINGS
+  {    
+    "commandToExecute": "powershell -command \"[System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String('${base64encode(templatefile("${path.module}/scripts/provision-software.ps1.tpl", {tailscale_authkey = var.tailscale_authkey}))}')) | Out-File -filepath provision-software.ps1\" && powershell -ExecutionPolicy Unrestricted -File provision-software.ps1"
+  }
+  SETTINGS
+}

scripts/provision-software.ps1.tpl

@@ -0,0 +1,77 @@
+$TailscaleUri = 'https://pkgs.tailscale.com/stable/tailscale-setup-1.88.3-amd64.msi'
+$TailscaleMsi = 'tailscale.msi'
+$TailscaleInstalledExe = 'C:\Program Files\Tailscale\tailscale.exe'
+$TailscaleInstallLog = 'tailscale-install.log'
+# FIXME(jona): Tailscale auth-key should not be stored in plain text!
+$TailscaleAuthKey = '${tailscale_authkey}'
+
+$AmdDriverUri = 'https://download.microsoft.com/download/44ee0d6c-74dd-4214-b6d5-24fbf2eac33b/whql-amd-software-cloud-edition-25.1.1-win10-win11-azure-ngads-v620.exe'
+$AmdDriverExe = 'amd-gpu-driver.exe'
+$AmdDriverInstallLog = "$PWD\amd-gpu-driver-install.log"
+
+$SunshineInstallerUri = 'https://github.com/LizardByte/Sunshine/releases/latest/download/Sunshine-Windows-AMD64-installer.exe'
+$SunshineInstallerExe = 'sunshine-installer.exe'
+
+$SteamInstallerUri = 'https://cdn.fastly.steamstatic.com/client/installer/SteamSetup.exe'
+$SteamInstallerExe = 'steam-installer.exe'
+
+Write-Host "Provisioning software"
+
+##
+# Tailscale
+Write-Host 'Setting up tailscale'
+
+Write-Host "Downloading Tailscale MSI from $TailscaleUri to $TailscaleMsi"
+Invoke-WebRequest -UseBasicParsing -Uri $TailscaleUri -OutFile $TailscaleMsi
+
+Write-Host "Installing Tailscale from MSI to $TailscaleInstalledExe, see log at $TailscaleInstallLog"
+Start-Process msiexec.exe -ArgumentList '/i', $TailscaleMsi, '/qn', '/l*v', $TailscaleInstallLog -Wait -NoNewWindow -PassThru
+
+Write-Host 'Joining host to tailscale network'
+Start-Process $TailscaleInstalledExe -ArgumentList 'up', '--authkey', $TailscaleAuthKey, '--accept-dns=false', '--accept-routes', '--unattended' -NoNewWindow -PassThru -Wait
+
+# FIXME(jona): Tailscale auth key should not be stored in registry in plain text
+Write-Host 'Creating login script to authenticate to tailscale'
+$TailscaleLoginCmd = ('"{0}" login --auth-key "{1}"' -f $TailscaleInstalledExe, $TailscaleAuthKey)
+New-ItemProperty -Path "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" `
+  -Name "TailscaleLogin" `
+  -Value "cmd /c $TailscaleLoginCmd" `
+  -PropertyType String -Force
+
+Write-Host 'Done setting up tailscale'
+
+##
+# AMD GPU driver
+Write-Host 'Installing AMD GPU driver'
+
+Write-Host "Downloading AMD GPU driver installer from $AndDriverUri to $AmdDriverExe"
+Invoke-WebRequest -UseBasicParsing -Uri $AmdDriverUri -OutFile $AmdDriverExe
+
+Write-Host "Installing AMD GPU driver from, see log at $AmdDriverInstallLog"
+Start-Process $AmdDriverExe -ArgumentList '-install', '-log', $AmdDriverInstallLog -Wait -NoNewWindow -PassThru
+
+Write-Host 'Done installing AMD GPU driver'
+
+##
+# Sunshine
+Write-Host "Installing Sunshine"
+Write-Host "Downloading sunshine installer from $SunshineInstallerUri to $SunshineInstallerExe"
+Invoke-WebRequest -UseBasicParsing -Uri $SunshineInstallerUri -OutFile $SunshineInstallerExe
+
+Write-Host "Installing Sunshine from $SunshineInstallerExe"
+Start-Process $SunshineInstallerExe -ArgumentList '/S' -Wait -NoNewWindow -PassThru
+
+Write-Host 'Done installing Sunshine, configure at https://localhost:47990/'
+
+##
+# Steam
+Write-Host "Installing Steam"
+Write-Host "Downloading Steam installer from $SteamInstallerUri to $SteamInstallerExe"
+Invoke-WebRequest -UseBasicParsing -Uri $SteamInstallerUri -OutFile $SteamInstallerExe
+
+Write-Host "Installing Steam from $SteamInstallerExe"
+Start-Process $SteamInstallerExe -ArgumentList '/S' -Wait -NoNewWindow -PassThru
+
+Write-Host 'Done installing Steam'
+
+Write-Host 'Done provisioning software'

variables.tf

@@ -4,6 +4,7 @@ variable "subscription_id" {
   default     = "90aed1cc-9b7f-4d3d-b2b9-b3654b49835e"
 }
 
+# The prefix must not be changed, sice the budget watcher deletes the resource group wa5p-gaming-rg when budget is exceeded
 variable "prefix" {
   description = "Prefix for gaming related ressources"
   type        = string
@@ -11,7 +12,7 @@ variable "prefix" {
 }
 
 variable "location" {
-  description = "Locatino for gaming related ressources, should be as close as possible for low latency"
+  description = "Location for gaming related ressources, should be as close as possible for low latency"
   type        = string
   default     = "westeurope"
 }
@@ -52,8 +53,20 @@ variable "workload_subnet_address_prefixes" {
   default     = ["10.0.1.128/25"]
 }
 
+variable "vm_size" {
+  description = "SKU of the vm to be deployed, should be a GPU optimized vm"
+  type        = string
+  default     = "Standard_NG16ads_V620_v1"
+}
+
 variable "vm_admin_username" {
   description = "VM admin username, password will be generated randomly"
   type        = string
   default     = "jona"
 }
+
+variable "tailscale_authkey" {
+  description = "Tailscale auth key for unattended login"
+  type        = string
+  sensitive   = true
+}