Use AnonymousAWSCredentials for LocalStack to bypass credential validation

Author: NinjaRocks

tests/SourceFlow.Cloud.AWS.Tests/TestHelpers/AwsTestConfiguration.cs

@@ -110,9 +110,13 @@ public async Task<bool> IsSqsAvailableAsync(TimeSpan timeout)
             if (UseLocalStack)
             {
                 config.ServiceURL = LocalStackEndpoint;
+                config.AuthenticationRegion = Region.SystemName;
             }
 
-            var credentials = new BasicAWSCredentials(AccessKey, SecretKey);
+            // Use AnonymousAWSCredentials for LocalStack to bypass credential validation
+            var credentials = UseLocalStack 
+                ? new Amazon.Runtime.AnonymousAWSCredentials() 
+                : new BasicAWSCredentials(AccessKey, SecretKey);
             using var client = new AmazonSQSClient(credentials, config);
 
             // Try to list queues to test connectivity
@@ -161,9 +165,13 @@ public async Task<bool> IsSnsAvailableAsync(TimeSpan timeout)
             if (UseLocalStack)
             {
                 config.ServiceURL = LocalStackEndpoint;
+                config.AuthenticationRegion = Region.SystemName;
             }
 
-            var credentials = new BasicAWSCredentials(AccessKey, SecretKey);
+            // Use AnonymousAWSCredentials for LocalStack to bypass credential validation
+            var credentials = UseLocalStack 
+                ? new Amazon.Runtime.AnonymousAWSCredentials() 
+                : new BasicAWSCredentials(AccessKey, SecretKey);
             using var client = new AmazonSimpleNotificationServiceClient(credentials, config);
 
             // Try to list topics to test connectivity
@@ -212,9 +220,13 @@ public async Task<bool> IsKmsAvailableAsync(TimeSpan timeout)
             if (UseLocalStack)
             {
                 config.ServiceURL = LocalStackEndpoint;
+                config.AuthenticationRegion = Region.SystemName;
             }
 
-            var credentials = new BasicAWSCredentials(AccessKey, SecretKey);
+            // Use AnonymousAWSCredentials for LocalStack to bypass credential validation
+            var credentials = UseLocalStack 
+                ? new Amazon.Runtime.AnonymousAWSCredentials() 
+                : new BasicAWSCredentials(AccessKey, SecretKey);
             using var client = new AmazonKeyManagementServiceClient(credentials, config);
 
             // Try to list keys to test connectivity

tests/SourceFlow.Cloud.AWS.Tests/TestHelpers/LocalStackTestFixture.cs

@@ -143,32 +143,38 @@ public async Task InitializeAsync()
         }
 
         // Create AWS clients configured for LocalStack
+        // Use AnonymousAWSCredentials to bypass credential validation in LocalStack
+        var credentials = new Amazon.Runtime.AnonymousAWSCredentials();
+        
         var config = new Amazon.SQS.AmazonSQSConfig
         {
             ServiceURL = LocalStackEndpoint,
             UseHttp = true,
-            RegionEndpoint = _configuration.Region
+            RegionEndpoint = _configuration.Region,
+            AuthenticationRegion = _configuration.Region.SystemName
         };
 
-        SqsClient = new AmazonSQSClient(_configuration.AccessKey, _configuration.SecretKey, config);
+        SqsClient = new AmazonSQSClient(credentials, config);
 
         var snsConfig = new Amazon.SimpleNotificationService.AmazonSimpleNotificationServiceConfig
         {
             ServiceURL = LocalStackEndpoint,
             UseHttp = true,
-            RegionEndpoint = _configuration.Region
+            RegionEndpoint = _configuration.Region,
+            AuthenticationRegion = _configuration.Region.SystemName
         };
 
-        SnsClient = new AmazonSimpleNotificationServiceClient(_configuration.AccessKey, _configuration.SecretKey, snsConfig);
+        SnsClient = new AmazonSimpleNotificationServiceClient(credentials, snsConfig);
 
         var kmsConfig = new Amazon.KeyManagementService.AmazonKeyManagementServiceConfig
         {
             ServiceURL = LocalStackEndpoint,
             UseHttp = true,
-            RegionEndpoint = _configuration.Region
+            RegionEndpoint = _configuration.Region,
+            AuthenticationRegion = _configuration.Region.SystemName
         };
 
-        KmsClient = new AmazonKeyManagementServiceClient(_configuration.AccessKey, _configuration.SecretKey, kmsConfig);
+        KmsClient = new AmazonKeyManagementServiceClient(credentials, kmsConfig);
 
         // Create test resources
         await CreateTestResourcesAsync();