设置CloudWatch Log Group for Lambda Function的到期时间 [英] Set expiration of CloudWatch Log Group for Lambda Function

问题描述

默认情况下，当我创建Lambda函数时，CloudWatch Log Group设置为Never Expire.是否可以设置到期时间(例如14天)，这样我在创建后不必从控制台手动设置它?

By default when I create a Lambda function, the CloudWatch Log Group is set to Never Expire. Is it possible to set the expiration (saying 14 days) so I don't have to set it manually from the console after creation?

已更新#1

感谢 @jens walter答案这是如何解决问题的代码段

Thanks to @jens walter answer this is a code snippet of how to solve the problem

Resources:
  LambdaFunction:
    Type: AWS::Serverless::Function
    Properties:
      Handler: index.handler
      Runtime: nodejs6.10
      CodeUri: <your code uri>
      Policies: <your policies> 


  LambdaFunctionLogGroup:
    Type: "AWS::Logs::LogGroup"
    DependsOn: "LambdaFunction"
    Properties: 
      RetentionInDays: 14
      LogGroupName: !Join ["", ["/aws/lambda/", !Ref LambdaFunction]]

推荐答案

如果通过控制台创建Lambda，则无法相应地设置日志保留时间.也不可能为所有CloudWatch Logs设置默认保留.

If you are creating your Lambda through the console, it is not possible to set the log retention accordingly. It is also not possible to set a default retention for all CloudWatch Logs.

影响日志保留的唯一方法是通过CloudFormation.在这种情况下，您需要通过CloudFormation部署Lambda，然后可以在该模板中定义一个具有自定义保留的匹配LogGroup.

The only way you can influence the log retention is through CloudFormation. In that case, you need to deploy you Lambda through CloudFormation and then you can define a matching LogGroup with a custom retention within that template.

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