--- AWSTemplateFormatVersion: '2010-09-09' Transform: AWS::Serverless-2016-10-31 Resources: MyServerlessFunctionLogicalID: Type: AWS::Serverless::Function Properties: Handler: index.handler Runtime: nodejs14.x CodeUri: 's3://testBucket/mySourceCode.zip' ExampleLayer: Type: AWS::Serverless::LayerVersion Properties: LayerName: "Example" ContentUri: "./layers/example.zip" CompatibleRuntimes: - python3.6 AppName: Type: AWS::Serverless::Application Properties: Location: ApplicationId: arn:aws:serverlessrepo:us-west-2::applications/ SemanticVersion: 1.0.0 Parameters: Debug: 'True' MemorySizeMB: '128' TimeoutSec: '300' Outputs: myOutput: Value: !GetAtt [ MyServerlessFunctionLogicalID, Arn ]