AWSTemplateFormatVersion: "2010-09-09"
Transform: AWS::Serverless-2016-10-31

Globals:
  Function:
    Timeout: 10

Parameters:
  HelloWorldLayerName:
    Type: String
    Description: Name of the HelloWorldLayer which will be used with current deployment
  ChildStackHelloWorldLayerName:
    Type: String
    Description: Name of the HelloWorldLayer in ChildStack which will be used with current deployment

Resources:
  HelloWorldFunction:
    Type: AWS::Serverless::Function
    Properties:
      CodeUri: root_function/
      Handler: root_function.lambda_handler
      Runtime: python3.7
      Layers:
        - Ref: HelloWorldLayer
      Tracing: Active

  HelloWorldLayer:
    Type: AWS::Serverless::LayerVersion
    Properties:
      LayerName: !Ref HelloWorldLayerName
      Description: Hello World Layer
      ContentUri: root_layer/
      CompatibleRuntimes:
        - python3.7
    Metadata:
      BuildMethod: python3.7

  ChildStack:
    Type: AWS::Serverless::Application
    Properties:
      Location: child_stack/template.yaml
      Parameters:
        ParentLayer: !Ref HelloWorldLayer
        HelloWorldLayerName: !Ref ChildStackHelloWorldLayerName