[serverless] Extract EventBridge from SNS/SQS Payloads and Create EventBridge Spans

pkg/serverless/invocationlifecycle/init.go

@@ -143,6 +143,14 @@ func (lp *LifecycleProcessor) initFromSNSEvent(event events.SNSEvent) {
 	lp.requestHandler.event = event
 	lp.addTag(tagFunctionTriggerEventSource, sns)
 	lp.addTag(tagFunctionTriggerEventSourceArn, trigger.ExtractSNSEventArn(event))
+
+	// Check for EventBridge event wrapped by the SNS message
+	var eventBridgeEvent events.EventBridgeEvent
+	if err := json.Unmarshal([]byte(event.Records[0].SNS.Message), &eventBridgeEvent); err == nil {
+		if len(eventBridgeEvent.Detail.TraceContext) > 0 {
+			lp.createWrappedEventBridgeSpan(eventBridgeEvent)
+		}
+	}
 }
 
 func (lp *LifecycleProcessor) initFromSQSEvent(event events.SQSEvent) {
@@ -154,19 +162,26 @@ func (lp *LifecycleProcessor) initFromSQSEvent(event events.SQSEvent) {
 	lp.addTag(tagFunctionTriggerEventSource, sqs)
 	lp.addTag(tagFunctionTriggerEventSourceArn, trigger.ExtractSQSEventARN(event))
 
-	// test for SNS
+	// Check for SNS event wrapped by the SQS body
 	var snsEntity events.SNSEntity
-	if err := json.Unmarshal([]byte(event.Records[0].Body), &snsEntity); err != nil {
-		return
+	if err := json.Unmarshal([]byte(event.Records[0].Body), &snsEntity); err == nil {
+		if strings.ToLower(snsEntity.Type) == "notification" && snsEntity.TopicArn != "" {
+			lp.createWrappedSNSSpan(snsEntity)
+			return
+		}
 	}
 
-	isSNS := strings.ToLower(snsEntity.Type) == "notification" && snsEntity.TopicArn != ""
-
-	if !isSNS {
-		return
+	// Check for EventBridge event wrapped by the SQS body
+	var eventBridgeEvent events.EventBridgeEvent
+	if err := json.Unmarshal([]byte(event.Records[0].Body), &eventBridgeEvent); err == nil {
+		if len(eventBridgeEvent.Detail.TraceContext) > 0 {
+			lp.createWrappedEventBridgeSpan(eventBridgeEvent)
+		}
 	}
+}
 
-	// sns span
+// createWrappedSNSSpan creates  an inferred span for SNS that is wrapped by SQS.
+func (lp *LifecycleProcessor) createWrappedSNSSpan(snsEntity events.SNSEntity) {
 	lp.requestHandler.inferredSpans[1] = &inferredspan.InferredSpan{
 		CurrentInvocationStartTime: time.Unix(lp.requestHandler.inferredSpans[0].Span.Start, 0),
 		Span: &pb.Span{
@@ -179,9 +194,21 @@ func (lp *LifecycleProcessor) initFromSQSEvent(event events.SQSEvent) {
 	snsEvent.Records[0].SNS = snsEntity
 
 	lp.requestHandler.inferredSpans[1].EnrichInferredSpanWithSNSEvent(snsEvent)
-
 	lp.requestHandler.inferredSpans[1].Span.Duration = lp.GetInferredSpan().Span.Start - lp.requestHandler.inferredSpans[1].Span.Start
+}
 
+// createWrappedEventBridgeSpan creates an inferred span for EventBridge
+// that is wrapped by SQS or SNS.
+func (lp *LifecycleProcessor) createWrappedEventBridgeSpan(eventBridgeEvent events.EventBridgeEvent) {
+	lp.requestHandler.inferredSpans[1] = &inferredspan.InferredSpan{
+		CurrentInvocationStartTime: time.Unix(lp.requestHandler.inferredSpans[0].Span.Start, 0),
+		Span: &pb.Span{
+			SpanID: inferredspan.GenerateSpanId(),
+		},
+	}
+
+	lp.requestHandler.inferredSpans[1].EnrichInferredSpanWithEventBridgeEvent(eventBridgeEvent)
+	lp.requestHandler.inferredSpans[1].Span.Duration = lp.GetInferredSpan().Span.Start - lp.requestHandler.inferredSpans[1].Span.Start
 }
 
 func (lp *LifecycleProcessor) initFromLambdaFunctionURLEvent(event events.LambdaFunctionURLRequest, region string, accountID string, functionName string) {

pkg/serverless/invocationlifecycle/lifecycle_test.go

@@ -1234,6 +1234,88 @@ func TestTriggerTypesLifecycleEventForEventBridge(t *testing.T) {
 	}, testProcessor.GetTags())
 }
 
+func TestTriggerTypesLifecycleEventForEventBridgeSQS(t *testing.T) {
+	startInvocationTime := time.Now()
+	duration := 1 * time.Second
+	endInvocationTime := startInvocationTime.Add(duration)
+
+	var tracePayload *api.Payload
+
+	startDetails := &InvocationStartDetails{
+		InvokeEventRawPayload: getEventFromFile("eventbridgesqs.json"),
+		InvokedFunctionARN:    "arn:aws:lambda:us-east-1:123456789012:function:my-function",
+		StartTime:             startInvocationTime,
+	}
+
+	testProcessor := &LifecycleProcessor{
+		DetectLambdaLibrary:  func() bool { return false },
+		ProcessTrace:         func(payload *api.Payload) { tracePayload = payload },
+		InferredSpansEnabled: true,
+		requestHandler: &RequestHandler{
+			executionInfo: &ExecutionStartInfo{
+				TraceID:          123,
+				SamplingPriority: 1,
+			},
+		},
+	}
+
+	testProcessor.OnInvokeStart(startDetails)
+	testProcessor.OnInvokeEnd(&InvocationEndDetails{
+		RequestID: "test-request-id",
+		EndTime:   endInvocationTime,
+		IsError:   false,
+	})
+
+	spans := tracePayload.TracerPayload.Chunks[0].Spans
+	assert.Equal(t, 3, len(spans))
+	eventBridgeSpan, sqsSpan := spans[1], spans[2]
+	assert.Equal(t, "eventbridge", eventBridgeSpan.Service)
+	assert.Equal(t, "test-bus", eventBridgeSpan.Resource)
+	assert.Equal(t, "sqs", sqsSpan.Service)
+	assert.Equal(t, "test-queue", sqsSpan.Resource)
+}
+
+func TestTriggerTypesLifecycleEventForEventBridgeSNS(t *testing.T) {
+	startInvocationTime := time.Now()
+	duration := 1 * time.Second
+	endInvocationTime := startInvocationTime.Add(duration)
+
+	var tracePayload *api.Payload
+
+	startDetails := &InvocationStartDetails{
+		InvokeEventRawPayload: getEventFromFile("eventbridgesns.json"),
+		InvokedFunctionARN:    "arn:aws:lambda:us-east-1:123456789012:function:my-function",
+		StartTime:             startInvocationTime,
+	}
+
+	testProcessor := &LifecycleProcessor{
+		DetectLambdaLibrary:  func() bool { return false },
+		ProcessTrace:         func(payload *api.Payload) { tracePayload = payload },
+		InferredSpansEnabled: true,
+		requestHandler: &RequestHandler{
+			executionInfo: &ExecutionStartInfo{
+				TraceID:          123,
+				SamplingPriority: 1,
+			},
+		},
+	}
+
+	testProcessor.OnInvokeStart(startDetails)
+	testProcessor.OnInvokeEnd(&InvocationEndDetails{
+		RequestID: "test-request-id",
+		EndTime:   endInvocationTime,
+		IsError:   false,
+	})
+
+	spans := tracePayload.TracerPayload.Chunks[0].Spans
+	assert.Equal(t, 3, len(spans))
+	eventBridgeSpan, snsSpan := spans[1], spans[2]
+	assert.Equal(t, "eventbridge", eventBridgeSpan.Service)
+	assert.Equal(t, "test-bus", eventBridgeSpan.Resource)
+	assert.Equal(t, "sns", snsSpan.Service)
+	assert.Equal(t, "test-notifier", snsSpan.Resource)
+}
+
 // Helper function for reading test file
 func getEventFromFile(filename string) []byte {
 	event, err := os.ReadFile("../trace/testdata/event_samples/" + filename)

pkg/serverless/trace/propagation/carriers.go

@@ -23,8 +23,8 @@ import (
 )
 
 const (
-	awsTraceHeader   = "AWSTraceHeader"
-	datadogSQSHeader = "_datadog"
+	awsTraceHeader     = "AWSTraceHeader"
+	datadogTraceHeader = "_datadog"
 
 	rootPrefix     = "Root="
 	parentPrefix   = "Parent="
@@ -110,7 +110,7 @@ func extractTraceContextfromAWSTraceHeader(value string) (*TraceContext, error)
 // sqsMessageCarrier returns the tracer.TextMapReader used to extract trace
 // context from the events.SQSMessage type.
 func sqsMessageCarrier(event events.SQSMessage) (tracer.TextMapReader, error) {
-	if attr, ok := event.MessageAttributes[datadogSQSHeader]; ok {
+	if attr, ok := event.MessageAttributes[datadogTraceHeader]; ok {
 		return sqsMessageAttrCarrier(attr)
 	}
 	return snsSqsMessageCarrier(event)
@@ -164,7 +164,16 @@ func snsSqsMessageCarrier(event events.SQSMessage) (tracer.TextMapReader, error)
 // snsEntityCarrier returns the tracer.TextMapReader used to extract trace
 // context from the attributes of an events.SNSEntity type.
 func snsEntityCarrier(event events.SNSEntity) (tracer.TextMapReader, error) {
-	msgAttrs, ok := event.MessageAttributes[datadogSQSHeader]
+	// Check if this is an EventBridge event sent through SNS
+	var eventBridgeEvent events.EventBridgeEvent
+	if err := json.Unmarshal([]byte(event.Message), &eventBridgeEvent); err == nil {
+		if len(eventBridgeEvent.Detail.TraceContext) > 0 {
+			return eventBridgeCarrier(eventBridgeEvent)
+		}
+	}
+
+	// If not, check if this is a regular SNS message with Datadog trace information
+	msgAttrs, ok := event.MessageAttributes[datadogTraceHeader]
 	if !ok {
 		return nil, errorNoDDContextFound
 	}

pkg/serverless/trace/propagation/carriers_test.go

@@ -250,6 +250,18 @@ func TestSnsEntityCarrier(t *testing.T) {
 		expMap map[string]string
 		expErr string
 	}{
+		{
+			name: "eventbridge-through-sns",
+			event: events.SNSEntity{
+				Message: `{"detail":{"_datadog":{"x-datadog-trace-id":"123456789","x-datadog-parent-id":"987654321","x-datadog-sampling-priority":"1"}}}`,
+			},
+			expMap: map[string]string{
+				"x-datadog-trace-id":          "123456789",
+				"x-datadog-parent-id":         "987654321",
+				"x-datadog-sampling-priority": "1",
+			},
+			expErr: "",
+		},
 		{
 			name:   "no-msg-attrs",
 			event:  events.SNSEntity{},

pkg/serverless/trace/testdata/event_samples/eventbridgesns.json

@@ -0,0 +1,17 @@
+{
+  "Records":[
+    {
+      "SNS":{
+        "MessageID":"12345678-90abc-def-1234-567890abcdef",
+        "Type":"Notification",
+        "TopicArn":"arn:aws:sns:us-east-1:123456789012:test-notifier",
+        "MessageAttributes":{
+
+        },
+        "Timestamp":"2024-09-16T19:44:01.713Z",
+        "Subject":"",
+        "Message":"{\"version\":\"0\",\"id\":\"12345678-90abc-def-1234-567890abcdef\",\"detail-type\":\"TestDetail\",\"source\":\"com.test.source\",\"account\":\"12345667890\",\"time\":\"2024-09-16T19:44:01Z\",\"region\":\"us-east-1\",\"resources\":[],\"detail\":{\"foo\":\"bar\",\"_datadog\":{\"x-datadog-trace-id\":\"12345\",\"x-datadog-parent-id\":\"67890\",\"x-datadog-sampling-priority\":\"1\",\"x-datadog-start-time\":\"1726515840997\",\"x-datadog-resource-name\":\"test-bus\",\"x-datadog-tags\":\"_dd.p.dm=-1,_dd.p.tid=123567890\"}}}"
+      }
+    }
+  ]
+}

pkg/serverless/trace/testdata/event_samples/eventbridgesqs.json

@@ -0,0 +1,19 @@
+{
+  "Records":[
+    {
+      "ReceiptHandle":"AQEB9RCmPUwKay0Fttcd7JEN1XPUwBq4ixSPWCQ5ne4x2r4SOQmyBy45h08wPSLe3ZXXXqjpAawK0J91O6wu/DsBHFZnYL2CIBbYhnZsYkwiO8XwsDQrf1ZSTTFH7eGwHuVQ2BsX7O+a9m+5THfXl6e7kBhfNTkATxstbr2iVRObgkvmiI9DdoBCsWBHqn8Z48j28ExS4Ov3i1olku6DcTnq6WxBGPMIYz3qX2LEnDFGNwnL6Ldzi/R4C7BJ8qMvsQeXFFAfGuWNjQsO6PKDhKo1eAEzozlcQd5sDtflIeMsNhfi3LusSPudncQ+zS9qUOWKgezKZqVBLbea4Mt1XIpe/e4WL2DVFfU5IE4cjsxrGEF9v2hcGelCrRexEqy+BVi0NLdwyO6R5L1GfU/1NJUVEE9o8wEqtC+0lrwG8xC6eS0=",
+      "Body":"{\"version\":\"0\",\"id\":\"103310e6-f267-750d-8cdd-6bee88ad2c9c\",\"detail-type\":\"TestDetail\",\"source\":\"com.test.source\",\"account\":\"12345\",\"time\":\"2024-09-16T19:00:27Z\",\"region\":\"us-east-1\",\"resources\":[],\"detail\":{\"foo\":\"bar\",\"_datadog\":{\"x-datadog-trace-id\":\"12345\",\"x-datadog-parent-id\":\"67890\",\"x-datadog-sampling-priority\":\"1\",\"x-datadog-start-time\":\"1726513226645\",\"x-datadog-resource-name\":\"test-bus\",\"x-datadog-tags\":\"_dd.p.dm=-1,_dd.p.tid=1234567800000000\"}}}",
+      "Attributes":{
+        "ApproximateReceiveCount":"1",
+        "SentTimestamp":"1726513227336",
+        "SenderId":"AIDAIOA2GYWSHW4E2VXIO",
+        "ApproximateFirstReceiveTimestamp":"1726513227350"
+      },
+      "MessageAttributes":{
+
+      },
+      "eventSource": "aws:sqs",
+      "EventSourceARN":"arn:aws:sqs:us-east-1:123456789012:test-queue"
+    }
+  ]
+}

pkg/serverless/trigger/events/events.go

@@ -286,6 +286,7 @@ type SNSEntity struct {
 	MessageAttributes map[string]interface{}
 	Timestamp         time.Time
 	Subject           string
+	Message           string
 }
 
 // SQSEvent mirrors events.SQSEvent type, removing unused fields.