added tracking for profile providers

Author: kai-ion

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

@@ -38,6 +38,8 @@ enum class UserAgentFeature {
   CREDENTIALS_IMDS,
   CREDENTIALS_STS_ASSUME_ROLE,
   CREDENTIALS_HTTP,
+  CREDENTIALS_PROFILE_NAMED_PROVIDER,
+  CREDENTIALS_PROFILE_SOURCE_PROFILE,
 };
 
 class AWS_CORE_API UserAgent {

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

@@ -48,6 +48,8 @@ const std::pair<UserAgentFeature, const char*> BUSINESS_METRIC_MAPPING[] = {
     {UserAgentFeature::CREDENTIALS_IMDS, "0"},
     {UserAgentFeature::CREDENTIALS_STS_ASSUME_ROLE, "i"},
     {UserAgentFeature::CREDENTIALS_HTTP, "z"},
+    {UserAgentFeature::CREDENTIALS_PROFILE_NAMED_PROVIDER, "o"},
+    {UserAgentFeature::CREDENTIALS_PROFILE_SOURCE_PROFILE, "p"},
 };
 
 const std::pair<const char*, UserAgentFeature> RETRY_FEATURE_MAPPING[] = {

src/aws-cpp-sdk-identity-management/source/auth/STSProfileCredentialsProvider.cpp

@@ -210,6 +210,12 @@ void STSProfileCredentialsProvider::Reload()
         profileIt->second.SetCredentials({});
     }
 
+    // Check for credential_source usage
+    const auto credentialSource = profileIt->second.GetValue("credential_source");
+    if (!credentialSource.empty() && !m_credentials.IsEmpty()) {
+        m_credentials.AddUserAgentFeature(Aws::Client::UserAgentFeature::CREDENTIALS_PROFILE_NAMED_PROVIDER);
+    }
+
     AWS_LOGSTREAM_INFO(CLASS_TAG, "Profile " << profileIt->second.GetName()
             << " has a role ARN. Attempting to load its source credentials from profile "
             << profileIt->second.GetSourceProfile());
@@ -306,6 +312,11 @@ void STSProfileCredentialsProvider::Reload()
     }
 
     m_credentials = profileIt->second.GetCredentials();
+    
+    if (!m_credentials.IsEmpty()) {
+        m_credentials.AddUserAgentFeature(Aws::Client::UserAgentFeature::CREDENTIALS_PROFILE_SOURCE_PROFILE);
+    }
+    
     AWSCredentialsProvider::Reload();
 }