fix(lambda): add instrument handler option to adotInstrumentation to support python lambda functions

packages/aws-cdk-lib/aws-lambda/lib/adot-layers.ts

@@ -184,6 +184,11 @@ export enum AdotLambdaExecWrapper {
    * propagation for HTTP requests.
    */
   STREAM_HANDLER = '/opt/otel-stream-handler',
+
+  /**
+   * Wrapping python lambda handlers see https://aws-otel.github.io/docs/getting-started/lambda/lambda-python
+   */
+  INSTRUMENT_HANDLER = '/opt/otel-instrument',
 }
 
 abstract class AdotLambdaLayerVersion {

packages/aws-cdk-lib/aws-lambda/test/function.test.ts

@@ -3077,6 +3077,35 @@ describe('function', () => {
     });
   });
 
+  test('adds ADOT instrumentation to a ZIP Lambda function for instrumentation', () => {
+    // GIVEN
+    const app = new cdk.App();
+    const stack = new cdk.Stack(app, 'Base', {
+      env: { account: '111111111111', region: 'us-west-2' },
+    });
+
+    // WHEN
+    new lambda.Function(stack, 'MyLambda', {
+      code: new lambda.InlineCode('foo'),
+      handler: 'index.handler',
+      runtime: lambda.Runtime.PYTHON_3_9,
+      adotInstrumentation: {
+        layerVersion: lambda.AdotLayerVersion.fromPythonSdkLayerVersion(lambda.AdotLambdaLayerPythonSdkVersion.V1_13_0),
+        execWrapper: lambda.AdotLambdaExecWrapper.INSTRUMENT_HANDLER,
+      },
+    });
+
+    // THEN
+    Template.fromStack(stack).hasResourceProperties('AWS::Lambda::Function', {
+      Layers: ['arn:aws:lambda:us-west-2:901920570463:layer:aws-otel-python-amd64-ver-1-13-0:1'],
+      Environment: {
+        Variables: {
+          AWS_LAMBDA_EXEC_WRAPPER: '/opt/otel-instrument',
+        },
+      },
+    });
+  });
+
   test('adds ADOT instrumentation to a container image Lambda function', () => {
     // GIVEN
     const app = new cdk.App();