cloudwatch 使用 cloudformation 使用多个 SNS 主题的警报操作

Question

HI im using below Resource using cloudformation

"SNSTopic1":{
            "Default":"<prodteamarn>",
            "Description":"ProdteamSNStopic",
            "Type":"String"
            },

"SNSTopic2":{
            "Default":<featureteanarn>,
            "Description":"featureteamSNStopic",
            "Type":"String"
            },

    "Resources":{
            "SpilloverCountAlarm":{
                "Properties":{
                    "AlarmActions":[
                        {
                            "Ref":"SNSTopic1"
                        },
                       {
                         "Ref":"SNSTopic2"  //can i use multiple SNS topics             
                       }
                    ],
                    "AlarmDescription":"Spillover is Too Large",
                    "ComparisonOperator":"GreaterThanThreshold",
                    "Dimensions":[
                        {
                            "Name":"LoadBalancerName",
                            "Value":{
                                "Ref":"xyz"
                            }
                        }
                    ],
                    "EvaluationPeriods":"2",
                    "MetricName":"SpilloverCount",
                    "Namespace":"AWS/ELB",
                    "Period":"100",
                    "Statistic":"Sum",
                    "Threshold":"3"
                },
                "Type":"AWS::CloudWatch::Alarm"
            }

So the question is can i use multiple SNS topics in Alarmactions??? as i need to send notifications to both prod and feature teams as they have different Arn for SNS topics.

Answer 1

Yes, according to the CloudFormation documentation for Alarm , the property AlarmActions is a List of actions to be performed. This means you should be able to notify multiple SNS Topics without issue.

You can verify this by looking at the AWS Console UI for setting up an Alarm. The section for Actions is also a List that allows for the configuration of multiple actions to be configured.