Scheduling AWS Lambda execution using CloudWatch event rule

Schedule.yml

Description: >-
  Schedule - the infrastructure.
AWSTemplateFormatVersion: 2010-09-09
Transform: "AWS::Serverless-2016-10-31"
Resources:
  NotifierLambda:
    Type: AWS::Serverless::Function
    Properties:
      FunctionName: 'notifier'
      Handler: index.handler
      CodeUri: 's3://deegloo-blog-post/schedule-notify-trigger/notifier-partial.zip'
      Runtime: nodejs6.10
      MemorySize: 1536
      Timeout: 300
      Environment:
        Variables:
          SOME_VARIABLE: 'some-value'
  NotifierLambdaScheduledRule:
    Type: AWS::Events::Rule
    Properties:
      Name: 'notifier-scheduled-rule'
      Description: 'Triggers notifier lambda once per day'
      ScheduleExpression: cron(0 7 ? * * *)
      State: ENABLED
      Targets:
        -
          Arn: !GetAtt NotifierLambda.Arn
          Id: TargetFunctionV1
  NotifierLambdaInvokePermission:
    Type: AWS::Lambda::Permission
    Properties:
      FunctionName: !Ref NotifierLambda
      Action: lambda:InvokeFunction
      Principal: events.amazonaws.com
      SourceArn: !GetAtt NotifierLambdaScheduledRule.Arn