function snsEmailSubscription(topicArn: string, email: string) {
    return new aws.cloudformation.Stack("alert-email-subscribe", {
        templateBody: JSON.stringify({
            "AWSTemplateFormatVersion": "2010-09-09",
            "Resources": {
                "EmailSNSTopic": {
                    "Type": "AWS::SNS::Subscription",
                    "Properties": {
                        "TopicArn": topicArn,
                        "Protocol": "email",
                        "Endpoint": email
                    }
                }
            }
        }),
        capabilities: ["CAPABILITY_NAMED_IAM"]
    })
}