将参数传递给AWS Cloudwatch事件目标Lambda函数

问题描述

我想将参数传递给由AWS Cloudwatch事件调用的lambda函数。参数名称为MM-dd-yyyy，事件规则的CFT模板如下：

alarmActions

我使用了"LambdaInvokeScheduler": { "Type": "AWS::Events::Rule","Properties": { "Description": "Scheduled Rule for invoking lambda function","EventPattern": { "source": [ "aws.ecs" ],"detail-type": [ "ECS Container Instance State Change" ],"detail": { "clusterArn": [ { "Fn::GetAtt": ["WindowsCluster","Arn"] } ] } },"State": "ENABLED","Targets": [{ "Arn": { "Fn::GetAtt": ["AlarmCreationLambdaFunction","Arn"] },"Id": "AlarmCreationLambdaFunction","Input": { "Fn::Join" : ["",[ "{ \"alarmActions\": \"",{ "Fn::Join" : [":",[ "arn:aws:sns",{ "Ref" : "AWS::Region" },{ "Ref" : "AWS::AccountId" },"CloudWatch"]] },"\" }"]] } }] } } 参数来传递JSON文本。周围没有太多文档。我只是想找到正确的方法。

解决方法

我找到了解决方案。我在lambda中错误地引用了参数。

我的lambda函数是这样的：

def func(event,context,alarmActions)
{
   print(alarmActions)
}

当我进行以下更新时，它起作用了：

def func(event,context)
{
   print(event['alarmActions'])
}