feat: datadog-lambda-go (#3943)

Author: joeyzhao2018

CODEOWNERS

@@ -62,6 +62,9 @@
 /internal/orchestrion           @DataDog/apm-orchestrion
 /**/orchestrion.yml             @DataDog/apm-orchestrion
 
+# Serverless
+/contrib/aws/datadog-lambda-go  @DataDog/apm-serverless @DataDog/serverless-aws
+
 # no owner: changes to these files will not automatically ping any particular
 # team and can be reviewed by anybody with the appropriate permissions. This is
 # meant to avoid pinging all of @DataDog/dd-trace-go-guild for every PR that

contrib/aws/datadog-lambda-go/awslambdanorpc.go

@@ -0,0 +1,11 @@
+//go:build lambda.norpc
+// +build lambda.norpc
+
+// Unless explicitly stated otherwise all files in this repository are licensed
+// under the Apache License Version 2.0.
+// This product includes software developed at Datadog (https://www.datadoghq.com/).
+// Copyright 2016 Datadog, Inc.
+
+package ddlambda
+
+const awsLambdaRpcSupport = false

contrib/aws/datadog-lambda-go/awslambdawithrpc.go

@@ -0,0 +1,11 @@
+//go:build !lambda.norpc
+// +build !lambda.norpc
+
+// Unless explicitly stated otherwise all files in this repository are licensed
+// under the Apache License Version 2.0.
+// This product includes software developed at Datadog (https://www.datadoghq.com/).
+// Copyright 2016 Datadog, Inc.
+
+package ddlambda
+
+const awsLambdaRpcSupport = true