Resources:
  MyFunction:
    Type: AWS::Serverless::Function
    Properties:
      CodeUri: s3://sam-demo-bucket/hello.zip
      Handler: hello.handler
      Runtime: python2.7
      ReservedConcurrentExecutions: 100

  StateMachine:
    Type: AWS::Serverless::StateMachine
    Properties:
      Name: MyStateMachineWithDefinitionInS3
      Type: STANDARD
      DefinitionUri: s3://sam-demo-bucket/my-state-machine.asl.json
      DefinitionSubstitutions:
        my_lambda_arn: !GetAtt MyFunction.Arn
      Policies:
      - Version: '2012-10-17'
        Statement:
        - Effect: Allow
          Action: lambda:InvokeFunction
          Resource: !GetAtt MyFunction.Arn