workaround for following issues.

- miss rpc.system in AWS SDK span. fixed in open-telemetry/opentelemetry-dotnet-contrib#1865 and pending for release.
- miss leading / in span.DisplayName of http server span.
- env var OTEL_EXPORTER_OTLP_TRACES_ENDPOINT doesn't take effect.

sample-applications/integration-test-app/docker-compose.yml

@@ -20,6 +20,7 @@ services:
       - INSTANCE_ID
       - LISTEN_ADDRESS=0.0.0.0:8080
       - OTEL_RESOURCE_ATTRIBUTES=service.name=aws-otel-integ-test
+      - OTEL_EXPORTER_OTLP_ENDPOINT=http://cwagent:4316 # TODO: workaround for trace exporter endpoint
       - OTEL_EXPORTER_OTLP_TRACES_ENDPOINT=http://cwagent:4316/v1/traces
       - OTEL_AWS_APPLICATION_SIGNALS_EXPORTER_ENDPOINT=http://cwagent:4316/v1/metrics
       - ASPNETCORE_URLS=http://+:8080

src/AWS.Distro.OpenTelemetry.AutoInstrumentation/AwsMetricAttributeGenerator.cs

@@ -195,6 +195,12 @@ private static void SetRemoteServiceAndOperation(Activity span, ActivityTagsColl
             remoteService = NormalizeRemoteServiceName(span, GetRemoteService(span, AttributeRpcService));
             remoteOperation = GetRemoteOperation(span, AttributeRpcMethod);
         }
+        // TODO workaround for AWS SDK span
+        else if (IsKeyPresent(span, AttributeAWSServiceName) || IsKeyPresent(span, AttributeAWSOperationName))
+        {
+            remoteService = NormalizeRemoteServiceName(span, GetRemoteService(span, AttributeAWSServiceName));
+            remoteOperation = GetRemoteOperation(span, AttributeAWSOperationName);
+        }
         else if (IsKeyPresent(span, AttributeDbSystem)
             || IsKeyPresent(span, AttributeDbOperation)
             || IsKeyPresent(span, AttributeDbStatement))

src/AWS.Distro.OpenTelemetry.AutoInstrumentation/AwsSpanProcessingUtil.cs

@@ -92,7 +92,8 @@ internal static string GetIngressOperation(Activity span)
         {
             operation = InternalOperation;
         }
-        else if (!IsValidOperation(span, operation))
+        // TODO workaround for span.DisplayName
+        else if (!IsValidOperation(span, operation) || IsKeyPresent(span, AttributeUrlPath))
         {
             operation = GenerateIngressOperation(span);
         }
@@ -141,7 +142,8 @@ internal static bool IsKeyPresent(Activity span, string key)
     internal static bool IsAwsSDKSpan(Activity span)
     {
         // https://opentelemetry.io/docs/specs/semconv/cloud-providers/aws-sdk/
-        return "aws-api".Equals((string?)span.GetTagItem(AttributeRpcSystem));
+        // TODO workaround for AWS SDK span
+        return "aws-api".Equals((string?)span.GetTagItem(AttributeRpcSystem)) || ((string?)span.GetTagItem(AttributeAWSServiceName)) != null;
     }
 
     internal static bool ShouldGenerateServiceMetricAttributes(Activity span)
@@ -273,6 +275,7 @@ public static bool isDBSpan(Activity span)
 
     public static bool isAwsSDKSpan(Activity span) {
         // https://opentelemetry.io/docs/specs/otel/trace/semantic_conventions/instrumentation/aws-sdk/#common-attributes
-        return span.GetTagItem(AttributeRpcSystem) == "aws-api";
+        // TODO workaround for AWS SDK span
+        return span.GetTagItem(AttributeRpcSystem) == "aws-api" || ((string?)span.GetTagItem(AttributeAWSServiceName)) != null;
     }
 }