"Route 53"でPublicな"Hosted Zone"作ってELBをALIASで登録するCloudFormationのテンプレート.json

{
    "AWSTemplateFormatVersion": "2010-09-09",
    "Parameters": {
        "ProjectName": {
            "Type": "String",
            "Default": "Cloudpack"
        },
        "PublicHostedZoneName": {
            "Type": "String"
        },
        "CommonSecurityGroup": {
            "Type": "AWS::EC2::SecurityGroup::Id"
        },
        "Public1Subnet": {
            "Type": "AWS::EC2::Subnet::Id"
        },
        "Public2Subnet": {
            "Type": "AWS::EC2::Subnet::Id"
        }
    },
    "Resources": {
        "WwwLoadBalancer": {
            "Type": "AWS::ElasticLoadBalancing::LoadBalancer",
            "Properties": {
                "LoadBalancerName": { "Fn::Join" : [ "", [
                    { "Ref": "ProjectName" },
                    "Www"
                ] ] },
                "CrossZone": "true",
                "Listeners": [ {
                    "LoadBalancerPort": "80",
                    "InstancePort": "80",
                    "Protocol": "HTTP"
                } ],
                "SecurityGroups": [
                    { "Ref": "CommonSecurityGroup" }
                ],
                "Subnets": [
                    { "Ref": "Public1Subnet" },
                    { "Ref": "Public2Subnet" }
                ],
                "Tags": [ {
                    "Key": "Name",
                    "Value": { "Fn::Join" : [ "", [
                        { "Ref": "ProjectName" },
                        "Www"
                    ] ] }
                } ]
            }
        },
        "PublicHostedZone": {
            "Type": "AWS::Route53::HostedZone",
            "Properties": {
                "Name": { "Ref": "PublicHostedZoneName" },
                "HostedZoneTags": [ {
                    "Key": "Name",
                    "Value": { "Fn::Join" : [ "", [
                        { "Ref": "ProjectName" },
                        "Public"
                    ] ] }
                } ]
            }
        },
        "WwwPublicRecordSet": {
            "Type": "AWS::Route53::RecordSet",
            "Properties": {
                "HostedZoneId": { "Ref": "PublicHostedZone" },
                "Name": { "Fn::Join" : [ "", [
                    "www.",
                    { "Ref": "PublicHostedZoneName" },
                    "."
                ] ] },
                "Type": "A",
                "AliasTarget" : {
                    "HostedZoneId": { "Fn::GetAtt": [ "WwwLoadBalancer", "CanonicalHostedZoneNameID" ] },
                    "DNSName": { "Fn::GetAtt": [ "WwwLoadBalancer", "CanonicalHostedZoneName" ] }
                }
            }
        }
    }
}