Amazon Route 53 Template Snippets

When you create an Amazon Route 53 resource record set, you must specify the hosted zone where you want to add it. AWS CloudFormation provides two ways to do this. You can explicitly specify the hosted zone using the HostedZoneId property or have AWS CloudFormation find the hosted zone using the HostedZoneName property. If you use the HostedZoneName property and there are multiple hosted zones with the same domain name, AWS CloudFormation doesn't create the stack.

"myDNSRecord" : {
            "Type" : "AWS::Route53::RecordSet",
            "Properties" : {
                "HostedZoneId" : "/hostedzone/Z3DG6IL3SJCGPX",
                "Comment" : "CNAME for my frontends.",
                "Name" : "mysite.example.com.",
                "Type" : "CNAME",
                "TTL" : "900",
                "ResourceRecords" : [
                    {"Fn::GetAtt":["myLB","DNSName"]}
                ]
            }
        }
            

"myDNSRecord2" : {
            "Type" : "AWS::Route53::RecordSet",
            "Properties" : {
                "HostedZoneName" : "example.com.",
                "Comment" : "A records for my frontends.",
                "Name" : "mysite.example.com.",
                "Type" : "A",
                "TTL" : "900",
                "ResourceRecords" : [
                    "192.168.0.1",
                    "192.168.0.2"
                ]
            }
        }

This example uses an AWS::Route53::RecordSetGroup to set up two CNAME records for the "example.com." hosted zone. The RecordSets property contains the CNAME record sets for the "mysite.example.com" DNS name. Each record set contains an identifier (SetIdentifier) and weight (Weight). The weighting for Frontend One is 40% (4 of 10) and Frontend Two is 60% (6 of 10). For more information about weighted resource record sets, see Setting Up Weighted Resource Record Sets in Route 53 Developer Guide.

        "myDNSOne" : {
            "Type" : "AWS::Route53::RecordSetGroup",
            "Properties" : {
                "HostedZoneName" : "example.com.",
                "Comment" : "Weighted RR for my frontends.",
                "RecordSets" : [
                  {
                    "Name" : "mysite.example.com.",
                    "Type" : "CNAME",
                    "TTL" : "900",
                    "SetIdentifier" : "Frontend One",
                    "Weight" : "4",
                    "ResourceRecords" : ["example-ec2.amazonaws.com"]
                  },
                  {
                    "Name" : "mysite.example.com.",
                    "Type" : "CNAME",
                    "TTL" : "900",
                    "SetIdentifier" : "Frontend Two",
                    "Weight" : "6",
                    "ResourceRecords" : ["example-ec2-larger.amazonaws.com"]
                  }
                  ]
            }
        }

This example uses an AWS::Route53::RecordSetGroup to set up an alias resource record set for the "example.com." hosted zone. The RecordSets property contains the A record for the zone apex "example.com." The AliasTarget property specifies the hosted zone ID and DNS name for the myELB LoadBalancer by using the GetAtt intrinsic function to retrieve the CanonicalHostedZoneNameID and CanonicalHostedZoneName properties of myELB resource. For more information about alias resource record sets, see Creating Alias Resource Record Sets in the Route 53 Developer Guide.

      "myELB" : {
        "Type" : "AWS::ElasticLoadBalancing::LoadBalancer",
        "Properties" : {
            "AvailabilityZones" : [ "us-east-1a" ],
            "Listeners" : [ {
                "LoadBalancerPort" : "80",
                "InstancePort" : "80",
                "Protocol" : "HTTP"
            } ]
        }
      },
      "myDNS" : {
        "Type" : "AWS::Route53::RecordSetGroup",
        "Properties" : {
          "HostedZoneName" : "example.com.",
          "Comment" : "Zone apex alias targeted to myELB LoadBalancer.",
          "RecordSets" : [
            {
              "Name" : "example.com.",
              "Type" : "A",
              "AliasTarget" : {
                  "HostedZoneId" : { "Fn::GetAtt" : ["myELB", "CanonicalHostedZoneNameID"] },
                  "DNSName" : { "Fn::GetAtt" : ["myELB","CanonicalHostedZoneName"] }
              }
            }
          ]
        }
    }