AWSTemplateFormatVersion: '2010-09-09' Transform: AWS::Serverless-2016-10-31 Description: todo-reminder application Parameters: EnvironmentName: Type: String Default: dev Resources: ToDoFunction: Type: AWS::Serverless::Function # More info about Function Resource: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#awsserverlessfunction Properties: Timeout: 20 CodeUri: ToDoFunction Handler: com.baeldung.lambda.todo.App::handleRequest Runtime: java8 MemorySize: 512 Environment: # More info about Env Vars: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#environment-object Variables: PARAM1: VALUE ENV_NAME: !Ref EnvironmentName