new configuration support for IMDSConfig

Add ClientConfiguration support for IMDS settings and update related classes

Fix: Shared pointer bug in AWSCredentialsProvider

allocator mismatch bug fix, change type using c_str()

Fix shared pointer bug and update IMDS config structure

- Fix std::stol compilation error with Aws::String by using .c_str()
- Update IMDS configuration to use credentialProviderConfig.imdsConfig structure
- Add proper environment variable support for AWS_METADATA_SERVICE_TIMEOUT and AWS_METADATA_SERVICE_NUM_ATTEMPTS

Author: cai lin

src/aws-cpp-sdk-core/include/aws/core/client/ClientConfiguration.h

@@ -440,7 +440,7 @@ namespace Aws
                */
               ResponseChecksumValidation responseChecksumValidation = ResponseChecksumValidation::WHEN_SUPPORTED;
             } checksumConfig;
-
+            
             /**
              * IMDS configuration settings
              */
@@ -473,7 +473,7 @@ namespace Aws
              * Configuration that is specifically used for the windows http client
              */
             struct WinHTTPOptions {
-              /**
+              /**`
                * Sets the windows http client to use WINHTTP_NO_CLIENT_CERT_CONTEXT when connecting
                * to a service, specifically only useful when disabling ssl verification and using
                * a different type of authentication.
@@ -507,6 +507,21 @@ namespace Aws
             * AWS profile name to use for credentials.
             */
             Aws::String profile;
+
+            /**
+             * IMDS configuration settings
+             */
+            struct {
+              /**
+               * Number of total attempts to make when retrieving data from IMDS. Default 1.
+               */
+              long metadataServiceNumAttempts = 1;
+              
+              /**
+               * Timeout in seconds when retrieving data from IMDS. Default 1.
+               */
+              long metadataServiceTimeout = 1;
+            } imdsConfig;
           }credentialProviderConfig;
         };
 

src/aws-cpp-sdk-core/source/auth/AWSCredentialsProvider.cpp

@@ -247,7 +247,11 @@ InstanceProfileCredentialsProvider::InstanceProfileCredentialsProvider(const Aws
     m_ec2MetadataConfigLoader(Aws::MakeShared<Aws::Config::EC2InstanceProfileConfigLoader>(INSTANCE_LOG_TAG, clientConfig)),
     m_loadFrequencyMs(refreshRateMs)
 {
+<<<<<<< HEAD
     AWS_LOGSTREAM_INFO(INSTANCE_LOG_TAG, "Creating Instance with IMDS timeout: " << clientConfig.imdsConfig.metadata_service_timeout << "s, attempts: " << clientConfig.imdsConfig.metadata_service_num_attempts);
+=======
+    AWS_LOGSTREAM_INFO(INSTANCE_LOG_TAG, "Creating Instance with IMDS timeout: " << clientConfig.credentialProviderConfig.imdsConfig.metadataServiceTimeout << "s, attempts: " << clientConfig.credentialProviderConfig.imdsConfig.metadataServiceNumAttempts);
+>>>>>>> c3e555dc5ae (new configuration support for IMDSConfig)
 }
 
 AWSCredentials InstanceProfileCredentialsProvider::GetAWSCredentials()

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

@@ -310,12 +310,20 @@ void setConfigFromEnvOrProfile(ClientConfiguration &config)
     // Parse and set IMDS num attempts
     long attempts = std::stol(numAttemptsStr.c_str());
     if (attempts >= 1) {
+<<<<<<< HEAD
       config.imdsConfig.metadata_service_num_attempts = attempts;
+=======
+        config.credentialProviderConfig.imdsConfig.metadataServiceNumAttempts = attempts;
+>>>>>>> c3e555dc5ae (new configuration support for IMDSConfig)
     }
     // Parse and set IMDS timeout
     long timeout = std::stol(timeoutStr.c_str());
     if (timeout >= 1) {
+<<<<<<< HEAD
         config.imdsConfig.metadata_service_timeout = timeout;
+=======
+        config.credentialProviderConfig.imdsConfig.metadataServiceTimeout = timeout;
+>>>>>>> c3e555dc5ae (new configuration support for IMDSConfig)
     }
 }