docs(install): Improved CDK usage guidance (#1105)

* docs(install): Improved CDK usage guidance

The way how the AWS Data Wrangler Layer can used within CDK and SAR is
improved.

Resolves: #1097

* Minor fixes

Co-authored-by: jaidisido <[email protected]>

Author: Fokko Bucys

docs/source/install.rst

@@ -80,19 +80,57 @@ Serverless Application Repository (SAR)
 
 AWS Data Wrangler layers are also available in the `AWS Serverless Application Repository <https://serverlessrepo.aws.amazon.com/applications>`_ (SAR).
 
-Here is an example of how to create the Lambda layer in your CDK app:
+The app deploys the Lambda layer version in your own AWS account and region via a CloudFormation stack.
+This option provides the ability to use semantic versions (i.e. library version) instead of Lambda layer versions. 
+
+.. list-table:: AWS Data Wrangler Layer Apps
+   :widths: 25 25 50
+   :header-rows: 1
+
+   * - App
+     - ARN
+     - Description
+   * - aws-data-wrangler-layer-py3-7
+     - arn:aws:serverlessrepo:us-east-1:336392948345:applications/aws-data-wrangler-layer-py3-7
+     - Layer for ``Python 3.7.x`` runtimes
+   * - aws-data-wrangler-layer-py3-8
+     - arn:aws:serverlessrepo:us-east-1:336392948345:applications/aws-data-wrangler-layer-py3-8
+     - Layer for ``Python 3.8.x`` runtimes
+   * - aws-data-wrangler-layer-py3-9
+     - arn:aws:serverlessrepo:us-east-1:336392948345:applications/aws-data-wrangler-layer-py3-9
+     - Layer for ``Python 3.9.x`` runtimes     
+
+Here is an example of how to create and use the AWS Data Wrangler Lambda layer in your CDK app:
 
 .. code-block:: python
+    
+    from aws_cdk import core, aws_sam as sam, aws_lambda
 
-    CfnApplication(
-        self,
-        "wrangler-layer",
-        location=CfnApplication.ApplicationLocationProperty(
-            application_id="arn:aws:serverlessrepo:us-east-1:336392948345:applications/aws-data-wrangler-layer-py3-8",
-            semantic_version="2.12.0",
-        ),
-    )
+    class DataWranglerApp(core.Construct):
+      def __init__(self, scope: core.Construct, id_: str):
+        super.__init__(scope,id)
 
+        wrangler_layer = sam.CfnApplication(
+          self,
+          "wrangler-layer",
+          location=CfnApplication.ApplicationLocationProperty(
+            application_id="arn:aws:serverlessrepo:us-east-1:336392948345:applications/aws-data-wrangler-layer-py3-8",
+            semantic_version="2.13.0",  # Get the latest version from https://github.com/awslabs/aws-data-wrangler/releases
+          ),
+        )
+
+        wrangler_layer_arn = wrangler_layer.get_att("Outputs.WranglerLayer38Arn").to_string()
+        wrangler_layer_version = aws_lambda.LayerVersion.from_layer_version_arn(self, "wrangler-layer-version", wrangler_layer_arn)
+
+        aws_lambda.Function(
+          self,
+          "wrangler-function",
+          runtime=aws_lambda.Runtime.PYTHON_3_8,
+          function_name="sample-wrangler-lambda-function",
+          code=aws_lambda.Code.asset("./src/wrangler-lambda"),
+          handler='lambda_function.lambda_handler',
+          layers=[wrangler_layer_version]
+        )
 
 AWS Glue Python Shell Jobs
 --------------------------