Update Azure Key Vault integration and configuration settings; modify appsettings for consistency and add aspire.config.json

Author: codebytes

11-azure-keyvault/Program.cs

@@ -1,31 +1,43 @@
-using Microsoft.Extensions.Configuration;
-using Microsoft.AspNetCore.Builder;
+using Azure.Extensions.AspNetCore.Configuration.Secrets;
 using Azure.Identity;
-using Azure.Security.KeyVault;
-using Azure.Security.KeyVault.Secrets;
 
 var builder = WebApplication.CreateBuilder(args);
 
 // Add Application Insights telemetry
 builder.Services.AddApplicationInsightsTelemetry();
 
-var keyVaultName = builder.Configuration.GetValue<string>("AzureKeyVault:Name");
-if (string.IsNullOrWhiteSpace(keyVaultName))
+// Get Key Vault name from configuration (set via environment variable or appsettings)
+var keyVaultName = builder.Configuration["AzureKeyVault:Name"];
+if (!string.IsNullOrWhiteSpace(keyVaultName))
 {
-    throw new InvalidOperationException("Configuration value 'AzureKeyVault:Name' is required.");
-}
+    var keyVaultUri = new Uri($"https://{keyVaultName}.vault.azure.net/");
 
-var keyVaultUri = new Uri($"https://{keyVaultName}.vault.azure.net/");
+    // Connect to Key Vault using DefaultAzureCredential
+    // This supports managed identity in Azure and local development credentials
+    builder.Configuration.AddAzureKeyVault(
+        keyVaultUri,
+        new DefaultAzureCredential(),
+        new AzureKeyVaultConfigurationOptions
+        {
+            // Reload secrets every 5 minutes (optional - remove if not needed)
+            ReloadInterval = TimeSpan.FromMinutes(5)
+        });
+}
+else if (!builder.Environment.IsDevelopment())
+{
+    // Only require Key Vault in non-development environments
+    throw new InvalidOperationException("Configuration value 'AzureKeyVault:Name' is required in non-development environments.");
+}
 
-//Connect to your KeyVault using the URI
-builder.Configuration
-    .AddAzureKeyVault(keyVaultUri, new DefaultAzureCredential());
 var app = builder.Build();
-var configuration = app.Configuration;
 
-Console.WriteLine($"Message: {configuration["Message"]}");
+// Access configuration values - Key Vault secrets override local config
+var message = app.Configuration["Message"] ?? "No message configured";
+var greeting = app.Configuration["greeting"] ?? "Hello";
+var environment = app.Configuration["environment"] ?? "unknown";
+
+Console.WriteLine($"Message: {message}");
 
-var name = args.Any() ? args[0] : "World";
-// See https://aka.ms/new-console-template for more information
-Console.WriteLine($"{configuration["greeting"]}, {name}.");
-Console.WriteLine($"Environment: {configuration["environment"]}");
+var name = args.Length > 0 ? args[0] : "World";
+Console.WriteLine($"{greeting}, {name}.");
+Console.WriteLine($"Environment: {environment}");

12-configuration-precedence/Program.cs

@@ -13,15 +13,20 @@
 DumpKey("Precedence:CommandLineOnly");
 
 PrintHeader("Providers (Top = Highest Precedence)");
-int i = 0;
-foreach (var src in config.Sources.Reverse())
-    Console.WriteLine($"  {++i}. {src.GetType().Name}");
-
-PrintHeader("Configuration Debug View");
-Console.WriteLine(config.GetDebugView(ctx => 
-    ctx.Key.Contains("Secret", StringComparison.OrdinalIgnoreCase) 
-        ? "****" 
-        : ctx.Value));
+var index = 0;
+foreach (var source in config.Sources.Reverse())
+    Console.WriteLine($"  {++index}. {source.GetType().Name}");
+
+PrintHeader("Configuration Debug View (Precedence only)");
+var debugView = config.GetDebugView(ctx =>
+    ctx.Key.Contains("Secret", StringComparison.OrdinalIgnoreCase) ? "****" : ctx.Value);
+
+// Filter to only show Precedence keys
+foreach (var line in debugView.Split(Environment.NewLine))
+{
+    if (line.Contains("Precedence", StringComparison.OrdinalIgnoreCase))
+        Console.WriteLine(line);
+}
 
 return;
 

24-configuration-reload/appsettings.json

@@ -1,7 +1,7 @@
 {
   "MySettings": {
-    "Greeting": "Hello NDC London!",
-    "DelaySeconds": 2,
+    "Greeting": "Hello CodeStock!",
+    "DelaySeconds": 4,
     "Feature": {
       "Enabled": false,
       "Threshold": 5

28-aspire/AspireSample.AppHost/AspireSample.AppHost.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Aspire.AppHost.Sdk/13.1.0">
+<Project Sdk="Aspire.AppHost.Sdk/13.2.2">
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>

28-aspire/aspire.config.json

@@ -0,0 +1,5 @@
+{
+  "appHost": {
+    "path": "AspireSample.AppHost/AspireSample.AppHost.csproj"
+  }
+}