CDK-Klayers
Use Klayers within your CDK Stacks.
Install
pip install cdk-klayers
Usage (short version)
Simply use the Klayers Class within your CDK Stack. You will need to specify a runtime and region for it to work.
from cdk_klayers import Klayers
class MockStack(Stack):
def __init__(self, scope: Construct, construct_id: str, **kwargs) -> None:
super().__init__(scope, construct_id, **kwargs)
runtime = aws_lambda.Runtime.PYTHON_3_12
# Initialize Klayers
klayers = Klayers(
self,
python_version = runtime
region = "ap-southeast-1"
)
# get the latest layer version for the requests package
requests_layer = klayers.layer_version(self, "requests")
lambda_function = aws_lambda.Function(
self, 'HelloHandler',
runtime=runtime,
layers=[requests_layer],
code=aws_lambda.Code.from_asset('lambda'),
handler='hello.handler'
)Usage (long version)
This example shows a fully working CDK stack that deploys a single lambda function with 2 layers from Klayers. The region of the stack was inferred from the CDK Environment.
from aws_cdk import aws_lambda
from aws_cdk import App, Environment, Stack
from aws_cdk import Aws
from constructs import Construct
from cdk_klayers import Klayers
class MockStack(Stack):
def __init__(self, scope: Construct, construct_id: str, **kwargs) -> None:
super().__init__(scope, construct_id, **kwargs)
runtime = aws_lambda.Runtime.PYTHON_3_12
# Initialize Klayers
klayers = Klayers(
self,
python_version = runtime
)
# get the latest layer version for the requests package
requests_layer = klayers.layer_version(self, "requests")
idna_layer = klayers.layer_version(self, "idna", layer_version="2")
lambda_function = aws_lambda.Function(
self, 'HelloHandler',
runtime=runtime,
layers=[requests_layer, idna_layer],
code=aws_lambda.Code.from_asset('lambda'),
handler='hello.handler'
)
app = App()
env = Environment(region="us-east-1")
mock_stack =MockStack(app, "test", env=env)Other Notes
We're still in beta, this might change. Please raise an issue if you have any feedback.