feat: prompt for sensitive on destroy

src/ALZ/Private/Deploy-Accelerator-Helpers/Request-ALZConfigurationValue.ps1

@@ -13,6 +13,8 @@ function Request-ALZConfigurationValue {
     The version control system (github, azure-devops, or local).
     .PARAMETER AzureContext
     A hashtable containing Azure context information including ManagementGroups, Subscriptions, and Regions arrays.
+    .PARAMETER SensitiveOnly
+    When set, only prompts for sensitive inputs that are not already set (via environment variables or non-empty config values).
     .OUTPUTS
     Returns $true if configuration was updated, $false otherwise.
     #>
@@ -28,7 +30,10 @@ function Request-ALZConfigurationValue {
         [string] $VersionControl,
 
         [Parameter(Mandatory = $false)]
-        [hashtable] $AzureContext = @{ ManagementGroups = @(); Subscriptions = @(); Regions = @() }
+        [hashtable] $AzureContext = @{ ManagementGroups = @(); Subscriptions = @(); Regions = @() },
+
+        [Parameter(Mandatory = $false)]
+        [switch] $SensitiveOnly
     )
 
     # Helper function to get a property from schema info safely
@@ -500,6 +505,11 @@ function Request-ALZConfigurationValue {
 
                 # Handle nested subscription_ids object (always in schema)
                 if ($key -eq "subscription_ids" -and $currentValue -is [System.Collections.IDictionary]) {
+                    # Skip subscription_ids in SensitiveOnly mode (subscription IDs are not sensitive)
+                    if ($SensitiveOnly.IsPresent) {
+                        continue
+                    }
+
                     # Only process if subscription_ids is in the schema
                     if ($null -eq $bootstrapSchema -or -not ($bootstrapSchema.PSObject.Properties.Name -contains "subscription_ids")) {
                         continue
@@ -558,6 +568,33 @@ function Request-ALZConfigurationValue {
                     $schemaInfo = $vcsSchema.$key
                 }
 
+                # Check if this is a sensitive input
+                $isSensitiveField = Get-SchemaProperty -SchemaInfo $schemaInfo -PropertyName "sensitive" -Default $false
+
+                # In SensitiveOnly mode, skip non-sensitive inputs
+                if ($SensitiveOnly.IsPresent -and -not $isSensitiveField) {
+                    continue
+                }
+
+                # In SensitiveOnly mode, check if sensitive value is already set
+                if ($SensitiveOnly.IsPresent -and $isSensitiveField) {
+                    # Check environment variable first
+                    $envVarName = "TF_VAR_$key"
+                    $envVarValue = [System.Environment]::GetEnvironmentVariable($envVarName)
+                    if (-not [string]::IsNullOrWhiteSpace($envVarValue)) {
+                        Write-InformationColored "`n[$key] - Already set via environment variable $envVarName" -ForegroundColor Gray -InformationAction Continue
+                        continue
+                    }
+
+                    # Check if config value is a real value (not empty, not a placeholder)
+                    $isPlaceholderValue = $currentValue -is [string] -and $currentValue -match '^\s*<.*>\s*$'
+                    $isSetViaEnvVarPlaceholder = $currentValue -is [string] -and $currentValue -like "Set via environment variable*"
+                    if (-not [string]::IsNullOrWhiteSpace($currentValue) -and -not $isPlaceholderValue -and -not $isSetViaEnvVarPlaceholder) {
+                        Write-InformationColored "`n[$key] - Already set in configuration" -ForegroundColor Gray -InformationAction Continue
+                        continue
+                    }
+                }
+
                 $result = Read-InputValue -Key $key -CurrentValue $currentValue -SchemaInfo $schemaInfo -Subscriptions $AzureContext.Subscriptions -ManagementGroups $AzureContext.ManagementGroups -Regions $AzureContext.Regions
                 $newValue = $result.Value
                 $isSensitive = $result.IsSensitive

src/ALZ/Private/Deploy-Accelerator-Helpers/Request-AcceleratorConfigurationInput.ps1

@@ -100,6 +100,18 @@ function Request-AcceleratorConfigurationInput {
             $resolvedTargetPath = (Resolve-Path -Path $normalizedTargetPath).Path
 
             Write-InformationColored "Using existing folder: $resolvedTargetPath" -ForegroundColor Green -InformationAction Continue
+
+            # Prompt for sensitive inputs that are not already set (e.g., PATs)
+            Write-InformationColored "`nChecking for sensitive inputs that need to be provided..." -ForegroundColor Yellow -InformationAction Continue
+            $azureContext = Get-AzureContext -OutputDirectory $folderConfig.OutputFolderPath -ClearCache:$ClearCache.IsPresent
+
+            Request-ALZConfigurationValue `
+                -ConfigFolderPath $folderConfig.ConfigFolderPath `
+                -IacType $folderConfig.IacType `
+                -VersionControl $folderConfig.VersionControl `
+                -AzureContext $azureContext `
+                -SensitiveOnly
+
             Write-InformationColored "`nProceeding with destroy..." -ForegroundColor Yellow -InformationAction Continue
 
             return ConvertTo-AcceleratorResult -Continue $true `