You can use the AWS Serverless Application Model (AWS SAM) to automate the creation of layers in your application. The AWS::Serverless::LayerVersion
resource type creates a layer version that you can reference from your Lambda function configuration.
AWSTemplateFormatVersion: '2010-09-09'
Transform: 'AWS::Serverless-2016-10-31'
Description: AWS SAM Template for Lambda Function with Lambda Layer
Resources:
MyLambdaLayer:
Type: AWS::Serverless::LayerVersion
Properties:
LayerName: my-lambda-layer
Description: My Lambda Layer
ContentUri: s3://amzn-s3-demo-bucket/my-layer.zip
CompatibleRuntimes:
- python3.9
- python3.10
- python3.11
MyLambdaFunction:
Type: AWS::Serverless::Function
Properties:
FunctionName: MyLambdaFunction
Runtime: python3.9
Handler: app.handler
CodeUri: s3://amzn-s3-demo-bucket/my-function
Layers:
- !Ref MyLambdaLayer
Layers with AWS CloudFormation
Lambda extensions
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