change retry strategy to factory

Author: kai lin

src/aws-cpp-sdk-core/source/client/ClientConfiguration.cpp

@@ -315,9 +315,9 @@ void setConfigFromEnvOrProfile(ClientConfiguration &config)
     long attempts = static_cast<long>(Aws::Utils::StringUtils::ConvertToInt32(numAttemptsStr.c_str()));
     config.credentialProviderConfig.imdsConfig.metadataServiceNumAttempts = attempts;
 
-    // Create IMDS-specific retry strategy based on configured attempts
+    // Create IMDS-specific retry strategy based on configured attempts using factory pattern
     if (attempts > 0) {
-        config.credentialProviderConfig.imdsRetryStrategy = Aws::MakeShared<DefaultRetryStrategy>(CLIENT_CONFIG_TAG, attempts - 1, 1000);
+        config.credentialProviderConfig.imdsRetryStrategy = config.configFactories.retryStrategyCreateFn();
     }
 }
 

src/aws-cpp-sdk-core/source/internal/AWSHttpResourceClient.cpp

@@ -49,6 +49,7 @@ namespace Aws
     {
         static ClientConfiguration MakeDefaultHttpResourceClientConfiguration(const char *logtag, const Aws::Client::ClientConfiguration* clientConfig = nullptr)
         {
+            AWS_UNREFERENCED_PARAM(clientConfig); // Parameter reserved for future IMDS configuration customization
             ClientConfiguration res;
 
             res.maxConnections = 2;