ECS容器内的日志文件到Cloudwatch

Question

使用ECS运行docker容器，似乎只能将stdout，standerr等传输到AWS Cloudwatch，但是我不知道将容器内的日志文件传输到Cloudwatch的方法吗？

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LogConfiguration：＃配置日志记录驱动程序

    LogDriver: awslogs # use logging driver awslogs to forward log messages to CloudWatch Logs 

    Options:
      'awslogs-region': !Ref 'AWS::Region' # the AWS region
      'awslogs-group': # the log group to send log messages to
        'Fn::ImportValue': !Sub '${ParentClusterStack}-LogGroup'
      'awslogs-stream-prefix': !Ref 'AWS::StackName' # a prefix for the log stream

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