Redirect all requests to a different static URL

redirect.json

{
    "AWSTemplateFormatVersion": "2010-09-09",
    "Outputs": {
        "DistributionHostname": {
            "Description": "Use this domain name in your DNS provider.",
            "Value": {
                "Fn::GetAtt": [
                    "RootDistribution",
                    "DomainName"
                ]
            }
        }
    },
    "Parameters": {
        "Domain": {
            "Description": "Root domain for your website, which you want to redirect from (e.g.: example.com)",
            "Type": "String"
        },
        "RootBucket": {
            "Description": "Name of the S3 bucket that hosts your static redirect",
            "Type": "String"
        }
    },
    "Resources": {
        "RootCertificate": {
            "Properties": {
                "DomainName": {
                    "Ref": "Domain"
                }
            },
            "Type": "AWS::CertificateManager::Certificate"
        },
        "RootDistribution": {
            "Properties": {
                "DistributionConfig": {
                    "Aliases": [
                        {
                            "Ref": "Domain"
                        }
                    ],
                    "DefaultCacheBehavior": {
                        "ForwardedValues": {
                            "QueryString": true
                        },
                        "MinTTL": "0",
                        "MaxTTL": "3600",
                        "DefaultTTL": "3600",
                        "SmoothStreaming": false,
                        "TargetOriginId": {
                          "Ref": "RootBucket"
                        },
                        "ViewerProtocolPolicy": "allow-all"
                    },
                    "Enabled": true,
                    "Origins": [
                        {
                            "CustomOriginConfig": {
                                "OriginProtocolPolicy": "http-only"
                            },
                            "DomainName": {
                              "Fn::Join": [
                                "",
                                [
                                  { "Ref": "RootBucket" },
                                  ".s3-website-",
                                  { "Ref" : "AWS::Region" },
                                  ".amazonaws.com"
                                ]
                              ]
                            },
                            "Id": {
                              "Ref": "RootBucket"
                            }
                        }
                    ],
                    "PriceClass": "PriceClass_100",
                    "ViewerCertificate": {
                        "AcmCertificateArn": {
                            "Ref": "RootCertificate"
                        },
                        "SslSupportMethod": "sni-only"
                    }
                }
            },
            "Type": "AWS::CloudFront::Distribution"
        }
    }
}