feat: Implemented WAF for Infrastructure

App/backend-api/Microsoft.GS.DPS.Host/DependencyConfiguration/ServiceDependencies.cs

@@ -12,6 +12,7 @@
 using Microsoft.GS.DPS.Storage.AISearch;
 using Microsoft.GS.DPSHost.AppConfiguration;
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.GS.DPSHost.Helpers;
 
 namespace Microsoft.GS.DPSHost.ServiceConfiguration
 {
@@ -31,7 +32,7 @@ public static void Inject(IHostApplicationBuilder builder)
                     return Kernel.CreateBuilder()
                                  .AddAzureOpenAIChatCompletion(deploymentName: builder.Configuration.GetSection("Application:AIServices:GPT-4o-mini")["ModelName"] ?? "",
                                                               endpoint: builder.Configuration.GetSection("Application:AIServices:GPT-4o-mini")["Endpoint"] ?? "",
-                                                              apiKey: builder.Configuration.GetSection("Application:AIServices:GPT-4o-mini")["Key"] ?? "")
+                                                              credentials: AzureCredentialHelper.GetAzureCredential())
 
                                  .Build();
                 })
@@ -66,7 +67,7 @@ public static void Inject(IHostApplicationBuilder builder)
                 .AddSingleton<TagUpdater>(x =>
                 {
                     var services = x.GetRequiredService<IOptions<Services>>().Value;
-                    return new TagUpdater(services.AzureAISearch.Endpoint, services.AzureAISearch.APIKey);
+                    return new TagUpdater(services.AzureAISearch.Endpoint, AzureCredentialHelper.GetAzureCredential());
 
                 })
 

App/backend-api/Microsoft.GS.DPS/Microsoft.GS.DPS.csproj

@@ -8,6 +8,7 @@
 
   <ItemGroup>
     <PackageReference Include="AutoMapper" Version="14.0.0" />
+    <PackageReference Include="Azure.Identity" Version="1.14.1" />
     <PackageReference Include="Azure.Search.Documents" Version="11.6.1" />
     <PackageReference Include="FluentValidation" Version="12.0.0" />
     <PackageReference Include="FluentValidation.DependencyInjectionExtensions" Version="12.0.0" />

App/backend-api/Microsoft.GS.DPS/Storage/AISearch/TagUpdater.cs

@@ -3,6 +3,7 @@
 using System.Linq;
 using System.Threading.Tasks;
 using Azure;
+using Azure.Core;
 using Azure.Search.Documents;
 using Azure.Search.Documents.Models;
 
@@ -12,9 +13,9 @@ public class TagUpdater
     {
         private readonly SearchClient _searchClient;
 
-        public TagUpdater(string searchEndPoint, string searchAPIKey, string indexName = "default")
+        public TagUpdater(string searchEndPoint, TokenCredential tokenCredential, string indexName = "default")
         {
-            _searchClient = new SearchClient(new Uri(searchEndPoint), indexName, new AzureKeyCredential(searchAPIKey));
+            _searchClient = new SearchClient(new Uri(searchEndPoint), indexName, tokenCredential);
         }
 
         public async Task UpdateTags(string documentId, List<string> updatingTags)