2016/10/17 - Amazon Route 53 - 9 updated api methods
Changes Update route53 client to latest version
{'VPC': {'VPCRegion': {'us-east-2'}}}
Associates an Amazon VPC with a private hosted zone.
Send a POST request to the /2013-04-01/hostedzone/hosted zone ID/associatevpc resource. The request body must include an XML document with a AssociateVPCWithHostedZoneRequest element. The response returns the AssociateVPCWithHostedZoneResponse element.
Request Syntax
client.associate_vpc_with_hosted_zone(
HostedZoneId='string',
VPC={
'VPCRegion': 'us-east-1'|'us-east-2'|'us-west-1'|'us-west-2'|'eu-west-1'|'eu-central-1'|'ap-southeast-1'|'ap-southeast-2'|'ap-south-1'|'ap-northeast-1'|'ap-northeast-2'|'sa-east-1'|'cn-north-1',
'VPCId': 'string'
},
Comment='string'
)
string
[REQUIRED]
The ID of the hosted zone you want to associate your VPC with.
Note that you cannot associate a VPC with a hosted zone that doesn't have an existing VPC association.
dict
[REQUIRED]
A complex type containing information about the Amazon VPC that you're associating with the specified hosted zone.
VPCRegion (string) --
The region in which you created the VPC that you want to associate with the specified Amazon Route 53 hosted zone.
VPCId (string) --
A VPC ID
string
Optional: A comment about the association request.
dict
Response Syntax
{
'ChangeInfo': {
'Id': 'string',
'Status': 'PENDING'|'INSYNC',
'SubmittedAt': datetime(2015, 1, 1),
'Comment': 'string'
}
}
Response Structure
(dict) --
A complex type that contains the response information for the hosted zone.
ChangeInfo (dict) --
A complex type that describes the changes made to your hosted zone.
Id (string) --
The ID of the request.
Status (string) --
The current state of the request. PENDING indicates that this request has not yet been applied to all Amazon Route 53 DNS servers.
SubmittedAt (datetime) --
The date and time the change request was submitted, in Coordinated Universal Time (UTC) format: YYYY-MM-DDThh:mm:ssZ. For more information, see the Wikipedia entry ISO 8601.
Comment (string) --
A complex type that describes change information about changes made to your hosted zone.
This element contains an ID that you use when performing a GetChange action to get detailed information about the change.
{'ChangeBatch': {'Changes': {'ResourceRecordSet': {'Region': {'us-east-2'}}}}}
Create, change, update, or delete authoritative DNS information on all Amazon Route 53 servers. Send a POST request to:
/2013-04-01/hostedzone/Amazon Route 53 hosted Zone ID/rrset resource.
The request body must include a document with a ChangeResourceRecordSetsRequest element. The request body contains a list of change items, known as a change batch. Change batches are considered transactional changes. When using the Amazon Route 53 API to change resource record sets, Amazon Route 53 either makes all or none of the changes in a change batch request. This ensures that Amazon Route 53 never partially implements the intended changes to the resource record sets in a hosted zone.
For example, a change batch request that deletes the CNAME record for www.example.com and creates an alias resource record set for www.example.com. Amazon Route 53 deletes the first resource record set and creates the second resource record set in a single operation. If either the DELETE or the CREATE action fails, then both changes (plus any other changes in the batch) fail, and the original CNAME record continues to exist.
Use ChangeResourceRecordsSetsRequest to perform the following actions:
CREATE: Creates a resource record set that has the specified values.
DELETE: Deletes an existing resource record set that has the specified values for Name, Type, Set Identifier (for code latency, weighted, geolocation, and failover resource record sets), and TTL (except alias resource record sets, for which the TTL is determined by the AWS resource you're routing queries to).
UPSERT: If a resource record set does not already exist, AWS creates it. If a resource set does exist, Amazon Route 53 updates it with the values in the request. Amazon Route 53 can update an existing resource record set only when all of the following values match: Name, Type, and Set Identifier (for weighted, latency, geolocation, and failover resource record sets).
In response to a ChangeResourceRecordSets request, the DNS data is changed on all Amazon Route 53 DNS servers. Initially, the status of a change is PENDING, meaning the change has not yet propagated to all the authoritative Amazon Route 53 DNS servers. When the change is propagated to all hosts, the change returns a status of INSYNC.
After sending a change request, confirm your change has propagated to all Amazon Route 53 DNS servers. Changes generally propagate to all Amazon Route 53 name servers in a few minutes. In rare circumstances, propagation can take up to 30 minutes. For more information, see GetChange.
For information about the limits on a ChangeResourceRecordSets request, see Limits in the Amazon Route 53 Developer Guide.
Request Syntax
client.change_resource_record_sets(
HostedZoneId='string',
ChangeBatch={
'Comment': 'string',
'Changes': [
{
'Action': 'CREATE'|'DELETE'|'UPSERT',
'ResourceRecordSet': {
'Name': 'string',
'Type': 'SOA'|'A'|'TXT'|'NS'|'CNAME'|'MX'|'NAPTR'|'PTR'|'SRV'|'SPF'|'AAAA',
'SetIdentifier': 'string',
'Weight': 123,
'Region': 'us-east-1'|'us-east-2'|'us-west-1'|'us-west-2'|'eu-west-1'|'eu-central-1'|'ap-southeast-1'|'ap-southeast-2'|'ap-northeast-1'|'ap-northeast-2'|'sa-east-1'|'cn-north-1'|'ap-south-1',
'GeoLocation': {
'ContinentCode': 'string',
'CountryCode': 'string',
'SubdivisionCode': 'string'
},
'Failover': 'PRIMARY'|'SECONDARY',
'TTL': 123,
'ResourceRecords': [
{
'Value': 'string'
},
],
'AliasTarget': {
'HostedZoneId': 'string',
'DNSName': 'string',
'EvaluateTargetHealth': True|False
},
'HealthCheckId': 'string',
'TrafficPolicyInstanceId': 'string'
}
},
]
}
)
string
[REQUIRED]
The ID of the hosted zone that contains the resource record sets that you want to change.
dict
[REQUIRED]
A complex type that contains an optional comment and the Changes element.
Comment (string) --
Optional: Any comments you want to include about a change batch request.
Changes (list) -- [REQUIRED]
Information about the changes to make to the record sets.
(dict) --
The information for each resource record set that you want to change.
Action (string) -- [REQUIRED]
The action to perform:
CREATE: Creates a resource record set that has the specified values.
DELETE: Deletes a existing resource record set that has the specified values for Name, Type, SetIdentifier (for latency, weighted, geolocation, and failover resource record sets), and TTL (except alias resource record sets, for which the TTL is determined by the AWS resource that you're routing DNS queries to).
UPSERT: If a resource record set does not already exist, Amazon Route 53 creates it. If a resource record set does exist, Amazon Route 53 updates it with the values in the request. Amazon Route 53 can update an existing resource record set only when all of the following values match: Name, Type, and SetIdentifier (for weighted, latency, geolocation, and failover resource record sets).
ResourceRecordSet (dict) -- [REQUIRED]
Information about the resource record set to create or delete.
Name (string) -- [REQUIRED]
The name of the domain you want to perform the action on.
Enter a fully qualified domain name, for example, www.example.com. You can optionally include a trailing dot. If you omit the trailing dot, Amazon Route 53 still assumes that the domain name that you specify is fully qualified. This means that Amazon Route 53 treats www.example.com (without a trailing dot) and www.example.com. (with a trailing dot) as identical.
For information about how to specify characters other than a-z, 0-9, and - (hyphen) and how to specify internationalized domain names, see DNS Domain Name Format in the Amazon Route 53 Developer Guide.
You can use the asterisk (*) wildcard to replace the leftmost label in a domain name. For example, *.example.com. Note the following:
The * must replace the entire label. For example, you can't specify *prod.example.com or prod*.example.com.
The * can't replace any of the middle labels, for example, marketing.*.example.com.
If you include * in any position other than the leftmost label in a domain name, DNS treats it as an * character (ASCII 42), not as a wildcard.
You can use the * wildcard as the leftmost label in a domain name, for example, *.example.com. You cannot use an * for one of the middle labels, for example, marketing.*.example.com. In addition, the * must replace the entire label; for example, you can't specify prod*.example.com.
Type (string) -- [REQUIRED]
The DNS record type. For information about different record types and how data is encoded for them, see Supported DNS Resource Record Types in the Amazon Route 53 Developer Guide.
Valid values for basic resource record sets: A | AAAA | CNAME | MX | NAPTR | NS | PTR | SOA | SPF | SRV | TXT
Values for weighted, latency, geolocation, and failover resource record sets: A | AAAA | CNAME | MX | NAPTR | PTR | SPF | SRV | TXT. When creating a group of weighted, latency, geolocation, or failover resource record sets, specify the same value for all of the resource record sets in the group.
Values for alias resource record sets:
CloudFront distributions: A
Elastic Beanstalk environment that has a regionalized subdomain: A
ELB load balancers: A | AAAA
Amazon S3 buckets: A
Another resource record set in this hosted zone: Specify the type of the resource record set for which you're creating the alias. Specify any value except NS or SOA.
SetIdentifier (string) --
Weighted, Latency, Geo, and Failover resource record sets only: An identifier that differentiates among multiple resource record sets that have the same combination of DNS name and type. The value of SetIdentifier must be unique for each resource record set that has the same combination of DNS name and type. Omit SetIdentifier for any other types of record sets.
Weight (integer) --
Weighted resource record sets only: Among resource record sets that have the same combination of DNS name and type, a value that determines the proportion of DNS queries that Amazon Route 53 responds to using the current resource record set. Amazon Route 53 calculates the sum of the weights for the resource record sets that have the same combination of DNS name and type. Amazon Route 53 then responds to queries based on the ratio of a resource's weight to the total. Note the following:
You must specify a value for the Weight element for every weighted resource record set.
You can only specify one ResourceRecord per weighted resource record set.
You cannot create latency, failover, or geolocation resource record sets that have the same values for the Name and Type elements as weighted resource record sets.
You can create a maximum of 100 weighted resource record sets that have the same values for the Name and Type elements.
For weighted (but not weighted alias) resource record sets, if you set Weight to 0 for a resource record set, Amazon Route 53 never responds to queries with the applicable value for that resource record set. However, if you set Weight to 0 for all resource record sets that have the same combination of DNS name and type, traffic is routed to all resources with equal probability. The effect of setting Weight to 0 is different when you associate health checks with weighted resource record sets. For more information, see Options for Configuring Amazon Route 53 Active-Active and Active-Passive Failover in the Amazon Route 53 Developer Guide.
Region (string) --
Latency-based resource record sets only: The Amazon EC2 region where the resource that is specified in this resource record set resides. The resource typically is an AWS resource, such as an Amazon EC2 instance or an ELB load balancer, and is referred to by an IP address or a DNS domain name, depending on the record type.
When Amazon Route 53 receives a DNS query for a domain name and type for which you have created latency resource record sets, Amazon Route 53 selects the latency resource record set that has the lowest latency between the end user and the associated Amazon EC2 region. Amazon Route 53 then returns the value that is associated with the selected resource record set.
Note the following:
You can only specify one ResourceRecord per latency resource record set.
You can only create one latency resource record set for each Amazon EC2 region.
You are not required to create latency resource record sets for all Amazon EC2 regions. Amazon Route 53 will choose the region with the best latency from among the regions for which you create latency resource record sets.
You cannot create non-latency resource record sets that have the same values for the Name and Type elements as latency resource record sets.
GeoLocation (dict) --
Geo location resource record sets only: A complex type that lets you control how Amazon Route 53 responds to DNS queries based on the geographic origin of the query. For example, if you want all queries from Africa to be routed to a web server with an IP address of 192.0.2.111, create a resource record set with a Type of A and a ContinentCode of AF.
If you create separate resource record sets for overlapping geographic regions (for example, one resource record set for a continent and one for a country on the same continent), priority goes to the smallest geographic region. This allows you to route most queries for a continent to one resource and to route queries for a country on that continent to a different resource.
You cannot create two geolocation resource record sets that specify the same geographic location.
The value * in the CountryCode element matches all geographic locations that aren't specified in other geolocation resource record sets that have the same values for the Name and Type elements.
You cannot create non-geolocation resource record sets that have the same values for the Name and Type elements as geolocation resource record sets.
ContinentCode (string) --
The two-letter code for the continent.
Valid values: AF | AN | AS | EU | OC | NA | SA
Constraint: Specifying ContinentCode with either CountryCode or SubdivisionCode returns an InvalidInput error.
CountryCode (string) --
The two-letter code for the country.
SubdivisionCode (string) --
The code for the subdivision, for example, a state in the United States or a province in Canada.
Failover (string) --
Failover resource record sets only: To configure failover, you add the Failover element to two resource record sets. For one resource record set, you specify PRIMARY as the value for Failover; for the other resource record set, you specify SECONDARY. In addition, you include the HealthCheckId element and specify the health check that you want Amazon Route 53 to perform for each resource record set.
Except where noted, the following failover behaviors assume that you have included the HealthCheckId element in both resource record sets:
When the primary resource record set is healthy, Amazon Route 53 responds to DNS queries with the applicable value from the primary resource record set regardless of the health of the secondary resource record set.
When the primary resource record set is unhealthy and the secondary resource record set is healthy, Amazon Route 53 responds to DNS queries with the applicable value from the secondary resource record set.
When the secondary resource record set is unhealthy, Amazon Route 53 responds to DNS queries with the applicable value from the primary resource record set regardless of the health of the primary resource record set.
If you omit the HealthCheckId element for the secondary resource record set, and if the primary resource record set is unhealthy, Amazon Route 53 always responds to DNS queries with the applicable value from the secondary resource record set. This is true regardless of the health of the associated endpoint.
You cannot create non-failover resource record sets that have the same values for the Name and Type elements as failover resource record sets.
For failover alias resource record sets, you must also include the EvaluateTargetHealth element and set the value to true.
For more information about configuring failover for Amazon Route 53, see the following topics in the Amazon Route 53 Developer Guide:
Valid values: PRIMARY | SECONDARY
TTL (integer) --
The resource record cache time to live (TTL), in seconds. Note the following:
If you're creating an alias resource record set, omit TTL. Amazon Route 53 uses the value of TTL for the alias target.
If you're associating this resource record set with a health check (if you're adding a HealthCheckId element), we recommend that you specify a TTL of 60 seconds or less so clients respond quickly to changes in health status.
All of the resource record sets in a group of weighted, latency, geolocation, or failover resource record sets must have the same value for TTL.
If a group of weighted resource record sets includes one or more weighted alias resource record sets for which the alias target is an ELB load balancer, we recommend that you specify a TTL of 60 seconds for all of the non-alias weighted resource record sets that have the same name and type. Values other than 60 seconds (the TTL for load balancers) will change the effect of the values that you specify for Weight.
ResourceRecords (list) --
Information about the resource records to act upon.
(dict) --
Information specific to the resource record.
Value (string) -- [REQUIRED]
The current or new DNS record value, not to exceed 4,000 characters. In the case of a DELETE action, if the current value does not match the actual value, an error is returned. For descriptions about how to format Value for different record types, see Supported DNS Resource Record Types in the Amazon Route 53 Developer Guide.
You can specify more than one value for all record types except CNAME and SOA.
AliasTarget (dict) --
Alias resource record sets only: Information about the CloudFront distribution, Elastic Beanstalk environment, ELB load balancer, Amazon S3 bucket, or Amazon Route 53 resource record set to which you are redirecting queries. The Elastic Beanstalk environment must have a regionalized subdomain.
If you're creating resource records sets for a private hosted zone, note the following:
You can't create alias resource record sets for CloudFront distributions in a private hosted zone.
Creating geolocation alias resource record sets or latency alias resource record sets in a private hosted zone is unsupported.
For information about creating failover resource record sets in a private hosted zone, see Configuring Failover in a Private Hosted Zone in the Amazon Route 53 Developer Guide.
HostedZoneId (string) -- [REQUIRED]
Alias resource records sets only: The value used depends on where the queries are routed:
A CloudFront distribution
Specify Z2FDTNDATAQYW2.
Specify the hosted zone ID for the region in which you created the environment. The environment must have a regionalized subdomain. For a list of regions and the corresponding hosted zone IDs, see AWS Elastic Beanstalk in the Regions and Endpoints chapter of the AWS General Reference.
ELB load balancer
Specify the value of the hosted zone ID for the load balancer. Use the following methods to get the hosted zone ID:
AWS Management Console: Go to the Amazon EC2; page, click Load Balancers in the navigation pane, select the load balancer, and get the value of the Hosted Zone ID field on the Description tab. Use the same process to get the DNS Name. See HostedZone$Name.
Elastic Load Balancing API: Use DescribeLoadBalancers to get the value of CanonicalHostedZoneNameID. Use the same process to get the CanonicalHostedZoneName. See HostedZone$Name.
AWS CLI: Use describe-load-balancers to get the value of CanonicalHostedZoneNameID. Use the same process to get the CanonicalHostedZoneName. See HostedZone$Name.
An Amazon S3 bucket configured as a static website
Specify the hosted zone ID for the Amazon S3 website endpoint in which you created the bucket. For more information about valid values, see the table Amazon S3 (S3) Website Endpoints in the Amazon Web Services General Reference.
Another Amazon Route 53 resource record set in your hosted zone
Specify the hosted zone ID of your hosted zone. (An alias resource record set cannot reference a resource record set in a different hosted zone.)
DNSName (string) -- [REQUIRED]
Alias resource record sets only: The value that you specify depends on where you want to route queries:
A CloudFront distribution: Specify the domain name that CloudFront assigned when you created your distribution. Your CloudFront distribution must include an alternate domain name that matches the name of the resource record set. For example, if the name of the resource record set is acme.example.com, your CloudFront distribution must include acme.example.com as one of the alternate domain names. For more information, see Using Alternate Domain Names (CNAMEs) in the Amazon CloudFront Developer Guide.
Elastic Beanstalk environment: Specify the CNAME attribute for the environment. (The environment must have a regionalized domain name.) You can use the following methods to get the value of the CNAME attribute:
AWS Managment Console: For information about how to get the value by using the console, see Using Custom Domains with Elastic Beanstalk in the AWS Elastic Beanstalk Developer Guide.
Elastic Load Balancing API: Use the DescribeEnvironments action to get the value of the CNAME attribute. For more information, see DescribeEnvironments in the AWS Elastic Beanstalk API Reference.
AWS CLI: Use the describe-environments command to get the value of the CNAME attribute. For more information, see describe-environments in the AWS Command Line Interface Reference.
An ELB load balancer: Specify the DNS name associated with the load balancer. Get the DNS name by using the AWS Management Console, the ELB API, or the AWS CLI. Use the same method to get values for HostedZoneId and DNSName. If you get one value from the console and the other value from the API or the CLI, creating the resource record set will fail.
AWS Management Console: Go to the Amazon EC2 page, click Load Balancers in the navigation pane, choose the load balancer, choose the Description tab, and get the value of the DNS Name field that begins with dualstack. Use the same process to get the Hosted Zone ID. See HostedZone$Id.
Elastic Load Balancing API: Use DescribeLoadBalancers to get the value of CanonicalHostedZoneName. Use the same process to get the CanonicalHostedZoneNameId. See HostedZone$Id.
AWS CLI: Use describe-load-balancers to get the value of CanonicalHostedZoneName. Use the same process to get the CanonicalHostedZoneNameId. See HostedZoneId.
An Amazon S3 bucket that is configured as a static website: Specify the domain name of the Amazon S3 website endpoint in which you created the bucket; for example, s3-website-us-east-1.amazonaws.com. For more information about valid values, see the table Amazon Simple Storage Service (S3) Website Endpoints in the Amazon Web Services General Reference. For more information about using Amazon S3 buckets for websites, see Hosting a Static Website on Amazon S3 in the Amazon Simple Storage Service Developer Guide.
Another Amazon Route 53 resource record set: Specify the value of the Name element for a resource record set in the current hosted zone.
EvaluateTargetHealth (boolean) -- [REQUIRED]
Applies only to alias, weighted alias, latency alias, and failover alias record sets: If you set the value of EvaluateTargetHealth to true for the resource record set or sets in an alias, weighted alias, latency alias, or failover alias resource record set, and if you specify a value for HealthCheck$Id for every resource record set that is referenced by these alias resource record sets, the alias resource record sets inherit the health of the referenced resource record sets.
In this configuration, when Amazon Route 53 receives a DNS query for an alias resource record set:
Amazon Route 53 looks at the resource record sets that are referenced by the alias resource record sets to determine which health checks they're using.
Amazon Route 53 checks the current status of each health check. (Amazon Route 53 periodically checks the health of the endpoint that is specified in a health check; it doesn't perform the health check when the DNS query arrives.)
Based on the status of the health checks, Amazon Route 53 determines which resource record sets are healthy. Unhealthy resource record sets are immediately removed from consideration. In addition, if all of the resource record sets that are referenced by an alias resource record set are unhealthy, that alias resource record set also is immediately removed from consideration.
Based on the configuration of the alias resource record sets (weighted alias or latency alias, for example) and the configuration of the resource record sets that they reference, Amazon Route 53 chooses a resource record set from the healthy resource record sets, and responds to the query.
Note the following:
You cannot set EvaluateTargetHealth to true when the alias target is a CloudFront distribution.
If the AWS resource that you specify in AliasTarget is a resource record set or a group of resource record sets (for example, a group of weighted resource record sets), but it is not another alias resource record set, we recommend that you associate a health check with all of the resource record sets in the alias target.For more information, see What Happens When You Omit Health Checks? in the Amazon Route 53 Developer Guide.
If you specify an Elastic Beanstalk environment in HostedZoneId and DNSName, and if the environment contains an ELB load balancer, Elastic Load Balancing routes queries only to the healthy Amazon EC2 instances that are registered with the load balancer. (An environment automatically contains an ELB load balancer if it includes more than one Amazon EC2 instance.) If you set EvaluateTargetHealth to true and either no Amazon EC2 instances are healthy or the load balancer itself is unhealthy, Amazon Route 53 routes queries to other available resources that are healthy, if any. If the environment contains a single Amazon EC2 instance, there are no special requirements.
If you specify an ELB load balancer in AliasTarget ``, Elastic Load Balancing routes queries only to the healthy Amazon EC2 instances that are registered with the load balancer. If no Amazon EC2 instances are healthy or if the load balancer itself is unhealthy, and if ``EvaluateTargetHealth is true for the corresponding alias resource record set, Amazon Route 53 routes queries to other resources. When you create a load balancer, you configure settings for Elastic Load Balancing health checks; they're not Amazon Route 53 health checks, but they perform a similar function. Do not create Amazon Route 53 health checks for the Amazon EC2 instances that you register with an ELB load balancer. For more information, see How Health Checks Work in More Complex Amazon Route 53 Configurations in the Amazon Route 53 Developers Guide.
We recommend that you set EvaluateTargetHealth to true only when you have enough idle capacity to handle the failure of one or more endpoints.
For more information and examples, see Amazon Route 53 Health Checks and DNS Failover in the Amazon Route 53 Developer Guide.
HealthCheckId (string) --
If you want Amazon Route 53 to return this resource record set in response to a DNS query only when a health check is passing, include the HealthCheckId element and specify the ID of the applicable health check.
Amazon Route 53 determines whether a resource record set is healthy based on one of the following:
By periodically sending a request to the endpoint that is specified in the health check
By aggregating the status of a specified group of health checks (calculated health checks)
By determining the current state of a CloudWatch alarm (CloudWatch metric health checks)
For information about how Amazon Route 53 determines whether a health check is healthy, see CreateHealthCheck.
The HealthCheckId element is only useful when Amazon Route 53 is choosing between two or more resource record sets to respond to a DNS query, and you want Amazon Route 53 to base the choice in part on the status of a health check. Configuring health checks only makes sense in the following configurations:
You're checking the health of the resource record sets in a weighted, latency, geolocation, or failover resource record set, and you specify health check IDs for all of the resource record sets. If the health check for one resource record set specifies an endpoint that is not healthy, Amazon Route 53 stops responding to queries using the value for that resource record set.
You set EvaluateTargetHealth to true for the resource record sets in an alias, weighted alias, latency alias, geolocation alias, or failover alias resource record set, and you specify health check IDs for all of the resource record sets that are referenced by the alias resource record sets.
For geolocation resource record sets, if an endpoint is unhealthy, Amazon Route 53 looks for a resource record set for the larger, associated geographic region. For example, suppose you have resource record sets for a state in the United States, for the United States, for North America, and for all locations. If the endpoint for the state resource record set is unhealthy, Amazon Route 53 checks the resource record sets for the United States, for North America, and for all locations (a resource record set for which the value of CountryCode is *), in that order, until it finds a resource record set for which the endpoint is healthy.
If your health checks specify the endpoint only by domain name, we recommend that you create a separate health check for each endpoint. For example, create a health check for each HTTP server that is serving content for www.example.com. For the value of FullyQualifiedDomainName, specify the domain name of the server (such as us-east-1-www.example.com), not the name of the resource record sets (example.com).
For more information, see the following topics in the Amazon Route 53 Developer Guide:
TrafficPolicyInstanceId (string) --
When you create a traffic policy instance, Amazon Route 53 automatically creates a resource record set. TrafficPolicyInstanceId is the ID of the traffic policy instance that Amazon Route 53 created this resource record set for.
dict
Response Syntax
{
'ChangeInfo': {
'Id': 'string',
'Status': 'PENDING'|'INSYNC',
'SubmittedAt': datetime(2015, 1, 1),
'Comment': 'string'
}
}
Response Structure
(dict) --
A complex type containing the response for the request.
ChangeInfo (dict) --
A complex type that contains information about changes made to your hosted zone.
This element contains an ID that you use when performing a GetChange action to get detailed information about the change.
Id (string) --
The ID of the request.
Status (string) --
The current state of the request. PENDING indicates that this request has not yet been applied to all Amazon Route 53 DNS servers.
SubmittedAt (datetime) --
The date and time the change request was submitted, in Coordinated Universal Time (UTC) format: YYYY-MM-DDThh:mm:ssZ. For more information, see the Wikipedia entry ISO 8601.
Comment (string) --
A complex type that describes change information about changes made to your hosted zone.
This element contains an ID that you use when performing a GetChange action to get detailed information about the change.
{'VPC': {'VPCRegion': {'us-east-2'}}}
Creates a new public hosted zone, used to specify how the Domain Name System (DNS) routes traffic on the Internet for a domain, such as example.com, and its subdomains.
Send a POST request to the /2013-04-01/hostedzone resource. The request body must include an XML document with a CreateHostedZoneRequest element. The response returns the CreateHostedZoneResponse element containing metadata about the hosted zone.
Fore more information about charges for hosted zones, see Amazon Route 53 Pricing.
Note the following:
You cannot create a hosted zone for a top-level domain (TLD).
Amazon Route 53 automatically creates a default SOA record and four NS records for the zone. For more information about SOA and NS records, see NS and SOA Records that Amazon Route 53 Creates for a Hosted Zone in the Amazon Route 53 Developer Guide.
If your domain is registered with a registrar other than Amazon Route 53, you must update the name servers with your registrar to make Amazon Route 53 your DNS service. For more information, see Configuring Amazon Route 53 as your DNS Service in the Amazon Route 53 Developer's Guide.
After creating a zone, its initial status is PENDING. This means that it is not yet available on all DNS servers. The status of the zone changes to INSYNC when the NS and SOA records are available on all Amazon Route 53 DNS servers.
When trying to create a hosted zone using a reusable delegation set, specify an optional DelegationSetId, and Amazon Route 53 would assign those 4 NS records for the zone, instead of allotting a new one.
Request Syntax
client.create_hosted_zone(
Name='string',
VPC={
'VPCRegion': 'us-east-1'|'us-east-2'|'us-west-1'|'us-west-2'|'eu-west-1'|'eu-central-1'|'ap-southeast-1'|'ap-southeast-2'|'ap-south-1'|'ap-northeast-1'|'ap-northeast-2'|'sa-east-1'|'cn-north-1',
'VPCId': 'string'
},
CallerReference='string',
HostedZoneConfig={
'Comment': 'string',
'PrivateZone': True|False
},
DelegationSetId='string'
)
string
[REQUIRED]
The name of the domain. For resource record types that include a domain name, specify a fully qualified domain name, for example, www.example.com. The trailing dot is optional; Amazon Route 53 assumes that the domain name is fully qualified. This means that Amazon Route 53 treats www.example.com (without a trailing dot) and www.example.com. (with a trailing dot) as identical.
If you're creating a public hosted zone, this is the name you have registered with your DNS registrar. If your domain name is registered with a registrar other than Amazon Route 53, change the name servers for your domain to the set of NameServers that CreateHostedZone returns in the DelegationSet element.
dict
The VPC that you want your hosted zone to be associated with. By providing this parameter, your newly created hosted cannot be resolved anywhere other than the given VPC.
VPCRegion (string) --
The region in which you created the VPC that you want to associate with the specified Amazon Route 53 hosted zone.
VPCId (string) --
A VPC ID
string
[REQUIRED]
A unique string that identifies the request and that allows failed CreateHostedZone requests to be retried without the risk of executing the operation twice. You must use a unique CallerReference string every time you create a hosted zone. CallerReference can be any unique string, for example, a date/time stamp.
dict
(Optional) A complex type that contains an optional comment about your hosted zone. If you don't want to specify a comment, omit both the HostedZoneConfig and Comment elements.
Comment (string) --
Any comments that you want to include about the hosted zone.
PrivateZone (boolean) --
A value that indicates whether this is a private hosted zone.
string
If you want to associate a reusable delegation set with this hosted zone, the ID that Amazon Route 53 assigned to the reusable delegation set when you created it. For more information about reusable delegation sets, see CreateReusableDelegationSet.
Type
String
Default
None
Parent
CreatedHostedZoneRequest
dict
Response Syntax
{
'HostedZone': {
'Id': 'string',
'Name': 'string',
'CallerReference': 'string',
'Config': {
'Comment': 'string',
'PrivateZone': True|False
},
'ResourceRecordSetCount': 123
},
'ChangeInfo': {
'Id': 'string',
'Status': 'PENDING'|'INSYNC',
'SubmittedAt': datetime(2015, 1, 1),
'Comment': 'string'
},
'DelegationSet': {
'Id': 'string',
'CallerReference': 'string',
'NameServers': [
'string',
]
},
'VPC': {
'VPCRegion': 'us-east-1'|'us-east-2'|'us-west-1'|'us-west-2'|'eu-west-1'|'eu-central-1'|'ap-southeast-1'|'ap-southeast-2'|'ap-south-1'|'ap-northeast-1'|'ap-northeast-2'|'sa-east-1'|'cn-north-1',
'VPCId': 'string'
},
'Location': 'string'
}
Response Structure
(dict) --
A complex type containing the response information for the hosted zone.
HostedZone (dict) --
A complex type that contains general information about the hosted zone.
Id (string) --
The ID that Amazon Route 53 assigned to the hosted zone when you created it.
Name (string) --
The name of the domain. For public hosted zones, this is the name that you have registered with your DNS registrar.
For information about how to specify characters other than a-z, 0-9, and - (hyphen) and how to specify internationalized domain names, see CreateHostedZone.
CallerReference (string) --
The value that you specified for CallerReference when you created the hosted zone.
Config (dict) --
A complex type that includes the Comment and PrivateZone elements. If you omitted the HostedZoneConfig and Comment elements from the request, the Config and Comment elements don't appear in the response.
Comment (string) --
Any comments that you want to include about the hosted zone.
PrivateZone (boolean) --
A value that indicates whether this is a private hosted zone.
ResourceRecordSetCount (integer) --
The number of resource record sets in the hosted zone.
ChangeInfo (dict) --
A complex type that describes the changes made to your hosted zone.
Id (string) --
The ID of the request.
Status (string) --
The current state of the request. PENDING indicates that this request has not yet been applied to all Amazon Route 53 DNS servers.
SubmittedAt (datetime) --
The date and time the change request was submitted, in Coordinated Universal Time (UTC) format: YYYY-MM-DDThh:mm:ssZ. For more information, see the Wikipedia entry ISO 8601.
Comment (string) --
A complex type that describes change information about changes made to your hosted zone.
This element contains an ID that you use when performing a GetChange action to get detailed information about the change.
DelegationSet (dict) --
A complex type that describes the name servers for this hosted zone.
Id (string) --
The ID that Amazon Route 53 assigns to a reusable delegation set.
CallerReference (string) --
A unique string that identifies the request, and that allows you to retry failed CreateReusableDelegationSet requests without the risk of executing the operation twice. You must use a unique CallerReference string every time you submit a CreateReusableDelegationSet request. CallerReference can be any unique string, for example, a date/time stamp.
NameServers (list) --
A complex type that contains a list of the authoritative name servers for the hosted zone.
(string) --
VPC (dict) --
A complex type that contains information about an Amazon VPC that you associated with this hosted zone.
VPCRegion (string) --
The region in which you created the VPC that you want to associate with the specified Amazon Route 53 hosted zone.
VPCId (string) --
A VPC ID
Location (string) --
The unique URL representing the new hosted zone.
{'VPC': {'VPCRegion': {'us-east-2'}}}
Disassociates a VPC from a Amazon Route 53 private hosted zone.
Send a POST request to the /2013-04-01/hostedzone/hosted zone ID/disassociatevpc resource. The request body must include an XML document with a DisassociateVPCFromHostedZoneRequest element. The response returns the DisassociateVPCFromHostedZoneResponse element.
Request Syntax
client.disassociate_vpc_from_hosted_zone(
HostedZoneId='string',
VPC={
'VPCRegion': 'us-east-1'|'us-east-2'|'us-west-1'|'us-west-2'|'eu-west-1'|'eu-central-1'|'ap-southeast-1'|'ap-southeast-2'|'ap-south-1'|'ap-northeast-1'|'ap-northeast-2'|'sa-east-1'|'cn-north-1',
'VPCId': 'string'
},
Comment='string'
)
string
[REQUIRED]
The ID of the VPC that you want to disassociate from an Amazon Route 53 hosted zone.
dict
[REQUIRED]
A complex type containing information about the Amazon VPC that you're disassociating from the specified hosted zone.
VPCRegion (string) --
The region in which you created the VPC that you want to associate with the specified Amazon Route 53 hosted zone.
VPCId (string) --
A VPC ID
string
Optional: A comment about the disassociation request.
dict
Response Syntax
{
'ChangeInfo': {
'Id': 'string',
'Status': 'PENDING'|'INSYNC',
'SubmittedAt': datetime(2015, 1, 1),
'Comment': 'string'
}
}
Response Structure
(dict) --
A complex type that contains the response information for the disassociate request.
ChangeInfo (dict) --
A complex type that describes the changes made to your hosted zone.
Id (string) --
The ID of the request.
Status (string) --
The current state of the request. PENDING indicates that this request has not yet been applied to all Amazon Route 53 DNS servers.
SubmittedAt (datetime) --
The date and time the change request was submitted, in Coordinated Universal Time (UTC) format: YYYY-MM-DDThh:mm:ssZ. For more information, see the Wikipedia entry ISO 8601.
Comment (string) --
A complex type that describes change information about changes made to your hosted zone.
This element contains an ID that you use when performing a GetChange action to get detailed information about the change.
{'ChangeBatchRecord': {'Changes': {'ResourceRecordSet': {'Region': {'us-east-2'}}}}}
Returns the status and changes of a change batch request.
Request Syntax
client.get_change_details(
Id='string'
)
string
[REQUIRED]
The ID of the change batch. This is the value that you specified in the change ID parameter when you submitted the request.
dict
Response Syntax
{
'ChangeBatchRecord': {
'Id': 'string',
'SubmittedAt': datetime(2015, 1, 1),
'Status': 'PENDING'|'INSYNC',
'Comment': 'string',
'Submitter': 'string',
'Changes': [
{
'Action': 'CREATE'|'DELETE'|'UPSERT',
'ResourceRecordSet': {
'Name': 'string',
'Type': 'SOA'|'A'|'TXT'|'NS'|'CNAME'|'MX'|'NAPTR'|'PTR'|'SRV'|'SPF'|'AAAA',
'SetIdentifier': 'string',
'Weight': 123,
'Region': 'us-east-1'|'us-east-2'|'us-west-1'|'us-west-2'|'eu-west-1'|'eu-central-1'|'ap-southeast-1'|'ap-southeast-2'|'ap-northeast-1'|'ap-northeast-2'|'sa-east-1'|'cn-north-1'|'ap-south-1',
'GeoLocation': {
'ContinentCode': 'string',
'CountryCode': 'string',
'SubdivisionCode': 'string'
},
'Failover': 'PRIMARY'|'SECONDARY',
'TTL': 123,
'ResourceRecords': [
{
'Value': 'string'
},
],
'AliasTarget': {
'HostedZoneId': 'string',
'DNSName': 'string',
'EvaluateTargetHealth': True|False
},
'HealthCheckId': 'string',
'TrafficPolicyInstanceId': 'string'
}
},
]
}
}
Response Structure
(dict) --
A complex type that contains the ChangeBatchRecord element.
ChangeBatchRecord (dict) --
A complex type that contains information about the specified change batch, including the change batch ID, the status of the change, and the contained changes.
Id (string) --
The ID of the request. Use this ID to track when the change has completed across all Amazon Route 53 DNS servers.
SubmittedAt (datetime) --
The date and time the change was submitted, in the format YYYY-MM-DDThh:mm:ssZ, as specified in the ISO 8601 standard (for example, 2009-11-19T19:37:58Z). The Z after the time indicates that the time is listed in Coordinated Universal Time (UTC).
Status (string) --
The current state of the request. PENDING indicates that this request has not yet been applied to all Amazon Route 53 DNS servers.
Valid Values: PENDING | INSYNC
Comment (string) --
A complex type that describes change information about changes made to your hosted zone.
This element contains an ID that you use when performing a GetChange action to get detailed information about the change.
Submitter (string) --
The AWS account ID attached to the changes.
Changes (list) --
A list of changes made in the ChangeBatch.
(dict) --
The information for each resource record set that you want to change.
Action (string) --
The action to perform:
CREATE: Creates a resource record set that has the specified values.
DELETE: Deletes a existing resource record set that has the specified values for Name, Type, SetIdentifier (for latency, weighted, geolocation, and failover resource record sets), and TTL (except alias resource record sets, for which the TTL is determined by the AWS resource that you're routing DNS queries to).
UPSERT: If a resource record set does not already exist, Amazon Route 53 creates it. If a resource record set does exist, Amazon Route 53 updates it with the values in the request. Amazon Route 53 can update an existing resource record set only when all of the following values match: Name, Type, and SetIdentifier (for weighted, latency, geolocation, and failover resource record sets).
ResourceRecordSet (dict) --
Information about the resource record set to create or delete.
Name (string) --
The name of the domain you want to perform the action on.
Enter a fully qualified domain name, for example, www.example.com. You can optionally include a trailing dot. If you omit the trailing dot, Amazon Route 53 still assumes that the domain name that you specify is fully qualified. This means that Amazon Route 53 treats www.example.com (without a trailing dot) and www.example.com. (with a trailing dot) as identical.
For information about how to specify characters other than a-z, 0-9, and - (hyphen) and how to specify internationalized domain names, see DNS Domain Name Format in the Amazon Route 53 Developer Guide.
You can use the asterisk (*) wildcard to replace the leftmost label in a domain name. For example, *.example.com. Note the following:
The * must replace the entire label. For example, you can't specify *prod.example.com or prod*.example.com.
The * can't replace any of the middle labels, for example, marketing.*.example.com.
If you include * in any position other than the leftmost label in a domain name, DNS treats it as an * character (ASCII 42), not as a wildcard.
You can use the * wildcard as the leftmost label in a domain name, for example, *.example.com. You cannot use an * for one of the middle labels, for example, marketing.*.example.com. In addition, the * must replace the entire label; for example, you can't specify prod*.example.com.
Type (string) --
The DNS record type. For information about different record types and how data is encoded for them, see Supported DNS Resource Record Types in the Amazon Route 53 Developer Guide.
Valid values for basic resource record sets: A | AAAA | CNAME | MX | NAPTR | NS | PTR | SOA | SPF | SRV | TXT
Values for weighted, latency, geolocation, and failover resource record sets: A | AAAA | CNAME | MX | NAPTR | PTR | SPF | SRV | TXT. When creating a group of weighted, latency, geolocation, or failover resource record sets, specify the same value for all of the resource record sets in the group.
Values for alias resource record sets:
CloudFront distributions: A
Elastic Beanstalk environment that has a regionalized subdomain: A
ELB load balancers: A | AAAA
Amazon S3 buckets: A
Another resource record set in this hosted zone: Specify the type of the resource record set for which you're creating the alias. Specify any value except NS or SOA.
SetIdentifier (string) --
Weighted, Latency, Geo, and Failover resource record sets only: An identifier that differentiates among multiple resource record sets that have the same combination of DNS name and type. The value of SetIdentifier must be unique for each resource record set that has the same combination of DNS name and type. Omit SetIdentifier for any other types of record sets.
Weight (integer) --
Weighted resource record sets only: Among resource record sets that have the same combination of DNS name and type, a value that determines the proportion of DNS queries that Amazon Route 53 responds to using the current resource record set. Amazon Route 53 calculates the sum of the weights for the resource record sets that have the same combination of DNS name and type. Amazon Route 53 then responds to queries based on the ratio of a resource's weight to the total. Note the following:
You must specify a value for the Weight element for every weighted resource record set.
You can only specify one ResourceRecord per weighted resource record set.
You cannot create latency, failover, or geolocation resource record sets that have the same values for the Name and Type elements as weighted resource record sets.
You can create a maximum of 100 weighted resource record sets that have the same values for the Name and Type elements.
For weighted (but not weighted alias) resource record sets, if you set Weight to 0 for a resource record set, Amazon Route 53 never responds to queries with the applicable value for that resource record set. However, if you set Weight to 0 for all resource record sets that have the same combination of DNS name and type, traffic is routed to all resources with equal probability. The effect of setting Weight to 0 is different when you associate health checks with weighted resource record sets. For more information, see Options for Configuring Amazon Route 53 Active-Active and Active-Passive Failover in the Amazon Route 53 Developer Guide.
Region (string) --
Latency-based resource record sets only: The Amazon EC2 region where the resource that is specified in this resource record set resides. The resource typically is an AWS resource, such as an Amazon EC2 instance or an ELB load balancer, and is referred to by an IP address or a DNS domain name, depending on the record type.
When Amazon Route 53 receives a DNS query for a domain name and type for which you have created latency resource record sets, Amazon Route 53 selects the latency resource record set that has the lowest latency between the end user and the associated Amazon EC2 region. Amazon Route 53 then returns the value that is associated with the selected resource record set.
Note the following:
You can only specify one ResourceRecord per latency resource record set.
You can only create one latency resource record set for each Amazon EC2 region.
You are not required to create latency resource record sets for all Amazon EC2 regions. Amazon Route 53 will choose the region with the best latency from among the regions for which you create latency resource record sets.
You cannot create non-latency resource record sets that have the same values for the Name and Type elements as latency resource record sets.
GeoLocation (dict) --
Geo location resource record sets only: A complex type that lets you control how Amazon Route 53 responds to DNS queries based on the geographic origin of the query. For example, if you want all queries from Africa to be routed to a web server with an IP address of 192.0.2.111, create a resource record set with a Type of A and a ContinentCode of AF.
If you create separate resource record sets for overlapping geographic regions (for example, one resource record set for a continent and one for a country on the same continent), priority goes to the smallest geographic region. This allows you to route most queries for a continent to one resource and to route queries for a country on that continent to a different resource.
You cannot create two geolocation resource record sets that specify the same geographic location.
The value * in the CountryCode element matches all geographic locations that aren't specified in other geolocation resource record sets that have the same values for the Name and Type elements.
You cannot create non-geolocation resource record sets that have the same values for the Name and Type elements as geolocation resource record sets.
ContinentCode (string) --
The two-letter code for the continent.
Valid values: AF | AN | AS | EU | OC | NA | SA
Constraint: Specifying ContinentCode with either CountryCode or SubdivisionCode returns an InvalidInput error.
CountryCode (string) --
The two-letter code for the country.
SubdivisionCode (string) --
The code for the subdivision, for example, a state in the United States or a province in Canada.
Failover (string) --
Failover resource record sets only: To configure failover, you add the Failover element to two resource record sets. For one resource record set, you specify PRIMARY as the value for Failover; for the other resource record set, you specify SECONDARY. In addition, you include the HealthCheckId element and specify the health check that you want Amazon Route 53 to perform for each resource record set.
Except where noted, the following failover behaviors assume that you have included the HealthCheckId element in both resource record sets:
When the primary resource record set is healthy, Amazon Route 53 responds to DNS queries with the applicable value from the primary resource record set regardless of the health of the secondary resource record set.
When the primary resource record set is unhealthy and the secondary resource record set is healthy, Amazon Route 53 responds to DNS queries with the applicable value from the secondary resource record set.
When the secondary resource record set is unhealthy, Amazon Route 53 responds to DNS queries with the applicable value from the primary resource record set regardless of the health of the primary resource record set.
If you omit the HealthCheckId element for the secondary resource record set, and if the primary resource record set is unhealthy, Amazon Route 53 always responds to DNS queries with the applicable value from the secondary resource record set. This is true regardless of the health of the associated endpoint.
You cannot create non-failover resource record sets that have the same values for the Name and Type elements as failover resource record sets.
For failover alias resource record sets, you must also include the EvaluateTargetHealth element and set the value to true.
For more information about configuring failover for Amazon Route 53, see the following topics in the Amazon Route 53 Developer Guide:
Valid values: PRIMARY | SECONDARY
TTL (integer) --
The resource record cache time to live (TTL), in seconds. Note the following:
If you're creating an alias resource record set, omit TTL. Amazon Route 53 uses the value of TTL for the alias target.
If you're associating this resource record set with a health check (if you're adding a HealthCheckId element), we recommend that you specify a TTL of 60 seconds or less so clients respond quickly to changes in health status.
All of the resource record sets in a group of weighted, latency, geolocation, or failover resource record sets must have the same value for TTL.
If a group of weighted resource record sets includes one or more weighted alias resource record sets for which the alias target is an ELB load balancer, we recommend that you specify a TTL of 60 seconds for all of the non-alias weighted resource record sets that have the same name and type. Values other than 60 seconds (the TTL for load balancers) will change the effect of the values that you specify for Weight.
ResourceRecords (list) --
Information about the resource records to act upon.
(dict) --
Information specific to the resource record.
Value (string) --
The current or new DNS record value, not to exceed 4,000 characters. In the case of a DELETE action, if the current value does not match the actual value, an error is returned. For descriptions about how to format Value for different record types, see Supported DNS Resource Record Types in the Amazon Route 53 Developer Guide.
You can specify more than one value for all record types except CNAME and SOA.
AliasTarget (dict) --
Alias resource record sets only: Information about the CloudFront distribution, Elastic Beanstalk environment, ELB load balancer, Amazon S3 bucket, or Amazon Route 53 resource record set to which you are redirecting queries. The Elastic Beanstalk environment must have a regionalized subdomain.
If you're creating resource records sets for a private hosted zone, note the following:
You can't create alias resource record sets for CloudFront distributions in a private hosted zone.
Creating geolocation alias resource record sets or latency alias resource record sets in a private hosted zone is unsupported.
For information about creating failover resource record sets in a private hosted zone, see Configuring Failover in a Private Hosted Zone in the Amazon Route 53 Developer Guide.
HostedZoneId (string) --
Alias resource records sets only: The value used depends on where the queries are routed:
A CloudFront distribution
Specify Z2FDTNDATAQYW2.
Specify the hosted zone ID for the region in which you created the environment. The environment must have a regionalized subdomain. For a list of regions and the corresponding hosted zone IDs, see AWS Elastic Beanstalk in the Regions and Endpoints chapter of the AWS General Reference.
ELB load balancer
Specify the value of the hosted zone ID for the load balancer. Use the following methods to get the hosted zone ID:
AWS Management Console: Go to the Amazon EC2; page, click Load Balancers in the navigation pane, select the load balancer, and get the value of the Hosted Zone ID field on the Description tab. Use the same process to get the DNS Name. See HostedZone$Name.
Elastic Load Balancing API: Use DescribeLoadBalancers to get the value of CanonicalHostedZoneNameID. Use the same process to get the CanonicalHostedZoneName. See HostedZone$Name.
AWS CLI: Use describe-load-balancers to get the value of CanonicalHostedZoneNameID. Use the same process to get the CanonicalHostedZoneName. See HostedZone$Name.
An Amazon S3 bucket configured as a static website
Specify the hosted zone ID for the Amazon S3 website endpoint in which you created the bucket. For more information about valid values, see the table Amazon S3 (S3) Website Endpoints in the Amazon Web Services General Reference.
Another Amazon Route 53 resource record set in your hosted zone
Specify the hosted zone ID of your hosted zone. (An alias resource record set cannot reference a resource record set in a different hosted zone.)
DNSName (string) --
Alias resource record sets only: The value that you specify depends on where you want to route queries:
A CloudFront distribution: Specify the domain name that CloudFront assigned when you created your distribution. Your CloudFront distribution must include an alternate domain name that matches the name of the resource record set. For example, if the name of the resource record set is acme.example.com, your CloudFront distribution must include acme.example.com as one of the alternate domain names. For more information, see Using Alternate Domain Names (CNAMEs) in the Amazon CloudFront Developer Guide.
Elastic Beanstalk environment: Specify the CNAME attribute for the environment. (The environment must have a regionalized domain name.) You can use the following methods to get the value of the CNAME attribute:
AWS Managment Console: For information about how to get the value by using the console, see Using Custom Domains with Elastic Beanstalk in the AWS Elastic Beanstalk Developer Guide.
Elastic Load Balancing API: Use the DescribeEnvironments action to get the value of the CNAME attribute. For more information, see DescribeEnvironments in the AWS Elastic Beanstalk API Reference.
AWS CLI: Use the describe-environments command to get the value of the CNAME attribute. For more information, see describe-environments in the AWS Command Line Interface Reference.
An ELB load balancer: Specify the DNS name associated with the load balancer. Get the DNS name by using the AWS Management Console, the ELB API, or the AWS CLI. Use the same method to get values for HostedZoneId and DNSName. If you get one value from the console and the other value from the API or the CLI, creating the resource record set will fail.
AWS Management Console: Go to the Amazon EC2 page, click Load Balancers in the navigation pane, choose the load balancer, choose the Description tab, and get the value of the DNS Name field that begins with dualstack. Use the same process to get the Hosted Zone ID. See HostedZone$Id.
Elastic Load Balancing API: Use DescribeLoadBalancers to get the value of CanonicalHostedZoneName. Use the same process to get the CanonicalHostedZoneNameId. See HostedZone$Id.
AWS CLI: Use describe-load-balancers to get the value of CanonicalHostedZoneName. Use the same process to get the CanonicalHostedZoneNameId. See HostedZoneId.
An Amazon S3 bucket that is configured as a static website: Specify the domain name of the Amazon S3 website endpoint in which you created the bucket; for example, s3-website-us-east-1.amazonaws.com. For more information about valid values, see the table Amazon Simple Storage Service (S3) Website Endpoints in the Amazon Web Services General Reference. For more information about using Amazon S3 buckets for websites, see Hosting a Static Website on Amazon S3 in the Amazon Simple Storage Service Developer Guide.
Another Amazon Route 53 resource record set: Specify the value of the Name element for a resource record set in the current hosted zone.
EvaluateTargetHealth (boolean) --
Applies only to alias, weighted alias, latency alias, and failover alias record sets: If you set the value of EvaluateTargetHealth to true for the resource record set or sets in an alias, weighted alias, latency alias, or failover alias resource record set, and if you specify a value for HealthCheck$Id for every resource record set that is referenced by these alias resource record sets, the alias resource record sets inherit the health of the referenced resource record sets.
In this configuration, when Amazon Route 53 receives a DNS query for an alias resource record set:
Amazon Route 53 looks at the resource record sets that are referenced by the alias resource record sets to determine which health checks they're using.
Amazon Route 53 checks the current status of each health check. (Amazon Route 53 periodically checks the health of the endpoint that is specified in a health check; it doesn't perform the health check when the DNS query arrives.)
Based on the status of the health checks, Amazon Route 53 determines which resource record sets are healthy. Unhealthy resource record sets are immediately removed from consideration. In addition, if all of the resource record sets that are referenced by an alias resource record set are unhealthy, that alias resource record set also is immediately removed from consideration.
Based on the configuration of the alias resource record sets (weighted alias or latency alias, for example) and the configuration of the resource record sets that they reference, Amazon Route 53 chooses a resource record set from the healthy resource record sets, and responds to the query.
Note the following:
You cannot set EvaluateTargetHealth to true when the alias target is a CloudFront distribution.
If the AWS resource that you specify in AliasTarget is a resource record set or a group of resource record sets (for example, a group of weighted resource record sets), but it is not another alias resource record set, we recommend that you associate a health check with all of the resource record sets in the alias target.For more information, see What Happens When You Omit Health Checks? in the Amazon Route 53 Developer Guide.
If you specify an Elastic Beanstalk environment in HostedZoneId and DNSName, and if the environment contains an ELB load balancer, Elastic Load Balancing routes queries only to the healthy Amazon EC2 instances that are registered with the load balancer. (An environment automatically contains an ELB load balancer if it includes more than one Amazon EC2 instance.) If you set EvaluateTargetHealth to true and either no Amazon EC2 instances are healthy or the load balancer itself is unhealthy, Amazon Route 53 routes queries to other available resources that are healthy, if any. If the environment contains a single Amazon EC2 instance, there are no special requirements.
If you specify an ELB load balancer in AliasTarget ``, Elastic Load Balancing routes queries only to the healthy Amazon EC2 instances that are registered with the load balancer. If no Amazon EC2 instances are healthy or if the load balancer itself is unhealthy, and if ``EvaluateTargetHealth is true for the corresponding alias resource record set, Amazon Route 53 routes queries to other resources. When you create a load balancer, you configure settings for Elastic Load Balancing health checks; they're not Amazon Route 53 health checks, but they perform a similar function. Do not create Amazon Route 53 health checks for the Amazon EC2 instances that you register with an ELB load balancer. For more information, see How Health Checks Work in More Complex Amazon Route 53 Configurations in the Amazon Route 53 Developers Guide.
We recommend that you set EvaluateTargetHealth to true only when you have enough idle capacity to handle the failure of one or more endpoints.
For more information and examples, see Amazon Route 53 Health Checks and DNS Failover in the Amazon Route 53 Developer Guide.
HealthCheckId (string) --
If you want Amazon Route 53 to return this resource record set in response to a DNS query only when a health check is passing, include the HealthCheckId element and specify the ID of the applicable health check.
Amazon Route 53 determines whether a resource record set is healthy based on one of the following:
By periodically sending a request to the endpoint that is specified in the health check
By aggregating the status of a specified group of health checks (calculated health checks)
By determining the current state of a CloudWatch alarm (CloudWatch metric health checks)
For information about how Amazon Route 53 determines whether a health check is healthy, see CreateHealthCheck.
The HealthCheckId element is only useful when Amazon Route 53 is choosing between two or more resource record sets to respond to a DNS query, and you want Amazon Route 53 to base the choice in part on the status of a health check. Configuring health checks only makes sense in the following configurations:
You're checking the health of the resource record sets in a weighted, latency, geolocation, or failover resource record set, and you specify health check IDs for all of the resource record sets. If the health check for one resource record set specifies an endpoint that is not healthy, Amazon Route 53 stops responding to queries using the value for that resource record set.
You set EvaluateTargetHealth to true for the resource record sets in an alias, weighted alias, latency alias, geolocation alias, or failover alias resource record set, and you specify health check IDs for all of the resource record sets that are referenced by the alias resource record sets.
For geolocation resource record sets, if an endpoint is unhealthy, Amazon Route 53 looks for a resource record set for the larger, associated geographic region. For example, suppose you have resource record sets for a state in the United States, for the United States, for North America, and for all locations. If the endpoint for the state resource record set is unhealthy, Amazon Route 53 checks the resource record sets for the United States, for North America, and for all locations (a resource record set for which the value of CountryCode is *), in that order, until it finds a resource record set for which the endpoint is healthy.
If your health checks specify the endpoint only by domain name, we recommend that you create a separate health check for each endpoint. For example, create a health check for each HTTP server that is serving content for www.example.com. For the value of FullyQualifiedDomainName, specify the domain name of the server (such as us-east-1-www.example.com), not the name of the resource record sets (example.com).
For more information, see the following topics in the Amazon Route 53 Developer Guide:
TrafficPolicyInstanceId (string) --
When you create a traffic policy instance, Amazon Route 53 automatically creates a resource record set. TrafficPolicyInstanceId is the ID of the traffic policy instance that Amazon Route 53 created this resource record set for.
{'VPCs': {'VPCRegion': {'us-east-2'}}}
Retrieves the delegation set for a hosted zone, including the four name servers assigned to the hosted zone. Send a GET request to the /Amazon Route 53 API version/hostedzone/hosted zone ID resource.
Request Syntax
client.get_hosted_zone(
Id='string'
)
string
[REQUIRED]
The ID of the hosted zone for which you want to get a list of the name servers in the delegation set.
dict
Response Syntax
{
'HostedZone': {
'Id': 'string',
'Name': 'string',
'CallerReference': 'string',
'Config': {
'Comment': 'string',
'PrivateZone': True|False
},
'ResourceRecordSetCount': 123
},
'DelegationSet': {
'Id': 'string',
'CallerReference': 'string',
'NameServers': [
'string',
]
},
'VPCs': [
{
'VPCRegion': 'us-east-1'|'us-east-2'|'us-west-1'|'us-west-2'|'eu-west-1'|'eu-central-1'|'ap-southeast-1'|'ap-southeast-2'|'ap-south-1'|'ap-northeast-1'|'ap-northeast-2'|'sa-east-1'|'cn-north-1',
'VPCId': 'string'
},
]
}
Response Structure
(dict) --
A complex type containing the response information for the hosted zone.
HostedZone (dict) --
A complex type that contains general information about the hosted zone.
Id (string) --
The ID that Amazon Route 53 assigned to the hosted zone when you created it.
Name (string) --
The name of the domain. For public hosted zones, this is the name that you have registered with your DNS registrar.
For information about how to specify characters other than a-z, 0-9, and - (hyphen) and how to specify internationalized domain names, see CreateHostedZone.
CallerReference (string) --
The value that you specified for CallerReference when you created the hosted zone.
Config (dict) --
A complex type that includes the Comment and PrivateZone elements. If you omitted the HostedZoneConfig and Comment elements from the request, the Config and Comment elements don't appear in the response.
Comment (string) --
Any comments that you want to include about the hosted zone.
PrivateZone (boolean) --
A value that indicates whether this is a private hosted zone.
ResourceRecordSetCount (integer) --
The number of resource record sets in the hosted zone.
DelegationSet (dict) --
A complex type that describes the name servers for this hosted zone.
Id (string) --
The ID that Amazon Route 53 assigns to a reusable delegation set.
CallerReference (string) --
A unique string that identifies the request, and that allows you to retry failed CreateReusableDelegationSet requests without the risk of executing the operation twice. You must use a unique CallerReference string every time you submit a CreateReusableDelegationSet request. CallerReference can be any unique string, for example, a date/time stamp.
NameServers (list) --
A complex type that contains a list of the authoritative name servers for the hosted zone.
(string) --
VPCs (list) --
A complex type that contains information about VPCs associated with the specified hosted zone.
(dict) --
A complex type that contains information about the Amazon VPC that you're associating with the specified hosted zone.
VPCRegion (string) --
The region in which you created the VPC that you want to associate with the specified Amazon Route 53 hosted zone.
VPCId (string) --
A VPC ID
{'ChangeBatchRecords': {'Changes': {'ResourceRecordSet': {'Region': {'us-east-2'}}}}}
Gets the list of ChangeBatches in a given time period for a given hosted zone.
Request Syntax
client.list_change_batches_by_hosted_zone(
HostedZoneId='string',
StartDate='string',
EndDate='string',
MaxItems='string',
Marker='string'
)
string
[REQUIRED]
The ID of the hosted zone that you want to see changes for.
string
[REQUIRED]
The start of the time period you want to see changes for.
string
[REQUIRED]
The end of the time period you want to see changes for.
string
The maximum number of items on a page.
string
The page marker.
dict
Response Syntax
{
'MaxItems': 'string',
'Marker': 'string',
'IsTruncated': True|False,
'ChangeBatchRecords': [
{
'Id': 'string',
'SubmittedAt': datetime(2015, 1, 1),
'Status': 'PENDING'|'INSYNC',
'Comment': 'string',
'Submitter': 'string',
'Changes': [
{
'Action': 'CREATE'|'DELETE'|'UPSERT',
'ResourceRecordSet': {
'Name': 'string',
'Type': 'SOA'|'A'|'TXT'|'NS'|'CNAME'|'MX'|'NAPTR'|'PTR'|'SRV'|'SPF'|'AAAA',
'SetIdentifier': 'string',
'Weight': 123,
'Region': 'us-east-1'|'us-east-2'|'us-west-1'|'us-west-2'|'eu-west-1'|'eu-central-1'|'ap-southeast-1'|'ap-southeast-2'|'ap-northeast-1'|'ap-northeast-2'|'sa-east-1'|'cn-north-1'|'ap-south-1',
'GeoLocation': {
'ContinentCode': 'string',
'CountryCode': 'string',
'SubdivisionCode': 'string'
},
'Failover': 'PRIMARY'|'SECONDARY',
'TTL': 123,
'ResourceRecords': [
{
'Value': 'string'
},
],
'AliasTarget': {
'HostedZoneId': 'string',
'DNSName': 'string',
'EvaluateTargetHealth': True|False
},
'HealthCheckId': 'string',
'TrafficPolicyInstanceId': 'string'
}
},
]
},
],
'NextMarker': 'string'
}
Response Structure
(dict) --
A complex type containing the response information for the request.
MaxItems (string) --
The value that you specified for the maxitems parameter in the call to ListHostedZones that produced the current response.
Marker (string) --
For the second and subsequent calls to ListHostedZones, Marker is the value that you specified for the marker parameter in the request that produced the current response.
IsTruncated (boolean) --
A flag that indicates if there are more change batches to list.
ChangeBatchRecords (list) --
The change batches within the given hosted zone and time period.
(dict) --
A complex type that lists the changes and information for a ChangeBatch.
Id (string) --
The ID of the request. Use this ID to track when the change has completed across all Amazon Route 53 DNS servers.
SubmittedAt (datetime) --
The date and time the change was submitted, in the format YYYY-MM-DDThh:mm:ssZ, as specified in the ISO 8601 standard (for example, 2009-11-19T19:37:58Z). The Z after the time indicates that the time is listed in Coordinated Universal Time (UTC).
Status (string) --
The current state of the request. PENDING indicates that this request has not yet been applied to all Amazon Route 53 DNS servers.
Valid Values: PENDING | INSYNC
Comment (string) --
A complex type that describes change information about changes made to your hosted zone.
This element contains an ID that you use when performing a GetChange action to get detailed information about the change.
Submitter (string) --
The AWS account ID attached to the changes.
Changes (list) --
A list of changes made in the ChangeBatch.
(dict) --
The information for each resource record set that you want to change.
Action (string) --
The action to perform:
CREATE: Creates a resource record set that has the specified values.
DELETE: Deletes a existing resource record set that has the specified values for Name, Type, SetIdentifier (for latency, weighted, geolocation, and failover resource record sets), and TTL (except alias resource record sets, for which the TTL is determined by the AWS resource that you're routing DNS queries to).
UPSERT: If a resource record set does not already exist, Amazon Route 53 creates it. If a resource record set does exist, Amazon Route 53 updates it with the values in the request. Amazon Route 53 can update an existing resource record set only when all of the following values match: Name, Type, and SetIdentifier (for weighted, latency, geolocation, and failover resource record sets).
ResourceRecordSet (dict) --
Information about the resource record set to create or delete.
Name (string) --
The name of the domain you want to perform the action on.
Enter a fully qualified domain name, for example, www.example.com. You can optionally include a trailing dot. If you omit the trailing dot, Amazon Route 53 still assumes that the domain name that you specify is fully qualified. This means that Amazon Route 53 treats www.example.com (without a trailing dot) and www.example.com. (with a trailing dot) as identical.
For information about how to specify characters other than a-z, 0-9, and - (hyphen) and how to specify internationalized domain names, see DNS Domain Name Format in the Amazon Route 53 Developer Guide.
You can use the asterisk (*) wildcard to replace the leftmost label in a domain name. For example, *.example.com. Note the following:
The * must replace the entire label. For example, you can't specify *prod.example.com or prod*.example.com.
The * can't replace any of the middle labels, for example, marketing.*.example.com.
If you include * in any position other than the leftmost label in a domain name, DNS treats it as an * character (ASCII 42), not as a wildcard.
You can use the * wildcard as the leftmost label in a domain name, for example, *.example.com. You cannot use an * for one of the middle labels, for example, marketing.*.example.com. In addition, the * must replace the entire label; for example, you can't specify prod*.example.com.
Type (string) --
The DNS record type. For information about different record types and how data is encoded for them, see Supported DNS Resource Record Types in the Amazon Route 53 Developer Guide.
Valid values for basic resource record sets: A | AAAA | CNAME | MX | NAPTR | NS | PTR | SOA | SPF | SRV | TXT
Values for weighted, latency, geolocation, and failover resource record sets: A | AAAA | CNAME | MX | NAPTR | PTR | SPF | SRV | TXT. When creating a group of weighted, latency, geolocation, or failover resource record sets, specify the same value for all of the resource record sets in the group.
Values for alias resource record sets:
CloudFront distributions: A
Elastic Beanstalk environment that has a regionalized subdomain: A
ELB load balancers: A | AAAA
Amazon S3 buckets: A
Another resource record set in this hosted zone: Specify the type of the resource record set for which you're creating the alias. Specify any value except NS or SOA.
SetIdentifier (string) --
Weighted, Latency, Geo, and Failover resource record sets only: An identifier that differentiates among multiple resource record sets that have the same combination of DNS name and type. The value of SetIdentifier must be unique for each resource record set that has the same combination of DNS name and type. Omit SetIdentifier for any other types of record sets.
Weight (integer) --
Weighted resource record sets only: Among resource record sets that have the same combination of DNS name and type, a value that determines the proportion of DNS queries that Amazon Route 53 responds to using the current resource record set. Amazon Route 53 calculates the sum of the weights for the resource record sets that have the same combination of DNS name and type. Amazon Route 53 then responds to queries based on the ratio of a resource's weight to the total. Note the following:
You must specify a value for the Weight element for every weighted resource record set.
You can only specify one ResourceRecord per weighted resource record set.
You cannot create latency, failover, or geolocation resource record sets that have the same values for the Name and Type elements as weighted resource record sets.
You can create a maximum of 100 weighted resource record sets that have the same values for the Name and Type elements.
For weighted (but not weighted alias) resource record sets, if you set Weight to 0 for a resource record set, Amazon Route 53 never responds to queries with the applicable value for that resource record set. However, if you set Weight to 0 for all resource record sets that have the same combination of DNS name and type, traffic is routed to all resources with equal probability. The effect of setting Weight to 0 is different when you associate health checks with weighted resource record sets. For more information, see Options for Configuring Amazon Route 53 Active-Active and Active-Passive Failover in the Amazon Route 53 Developer Guide.
Region (string) --
Latency-based resource record sets only: The Amazon EC2 region where the resource that is specified in this resource record set resides. The resource typically is an AWS resource, such as an Amazon EC2 instance or an ELB load balancer, and is referred to by an IP address or a DNS domain name, depending on the record type.
When Amazon Route 53 receives a DNS query for a domain name and type for which you have created latency resource record sets, Amazon Route 53 selects the latency resource record set that has the lowest latency between the end user and the associated Amazon EC2 region. Amazon Route 53 then returns the value that is associated with the selected resource record set.
Note the following:
You can only specify one ResourceRecord per latency resource record set.
You can only create one latency resource record set for each Amazon EC2 region.
You are not required to create latency resource record sets for all Amazon EC2 regions. Amazon Route 53 will choose the region with the best latency from among the regions for which you create latency resource record sets.
You cannot create non-latency resource record sets that have the same values for the Name and Type elements as latency resource record sets.
GeoLocation (dict) --
Geo location resource record sets only: A complex type that lets you control how Amazon Route 53 responds to DNS queries based on the geographic origin of the query. For example, if you want all queries from Africa to be routed to a web server with an IP address of 192.0.2.111, create a resource record set with a Type of A and a ContinentCode of AF.
If you create separate resource record sets for overlapping geographic regions (for example, one resource record set for a continent and one for a country on the same continent), priority goes to the smallest geographic region. This allows you to route most queries for a continent to one resource and to route queries for a country on that continent to a different resource.
You cannot create two geolocation resource record sets that specify the same geographic location.
The value * in the CountryCode element matches all geographic locations that aren't specified in other geolocation resource record sets that have the same values for the Name and Type elements.
You cannot create non-geolocation resource record sets that have the same values for the Name and Type elements as geolocation resource record sets.
ContinentCode (string) --
The two-letter code for the continent.
Valid values: AF | AN | AS | EU | OC | NA | SA
Constraint: Specifying ContinentCode with either CountryCode or SubdivisionCode returns an InvalidInput error.
CountryCode (string) --
The two-letter code for the country.
SubdivisionCode (string) --
The code for the subdivision, for example, a state in the United States or a province in Canada.
Failover (string) --
Failover resource record sets only: To configure failover, you add the Failover element to two resource record sets. For one resource record set, you specify PRIMARY as the value for Failover; for the other resource record set, you specify SECONDARY. In addition, you include the HealthCheckId element and specify the health check that you want Amazon Route 53 to perform for each resource record set.
Except where noted, the following failover behaviors assume that you have included the HealthCheckId element in both resource record sets:
When the primary resource record set is healthy, Amazon Route 53 responds to DNS queries with the applicable value from the primary resource record set regardless of the health of the secondary resource record set.
When the primary resource record set is unhealthy and the secondary resource record set is healthy, Amazon Route 53 responds to DNS queries with the applicable value from the secondary resource record set.
When the secondary resource record set is unhealthy, Amazon Route 53 responds to DNS queries with the applicable value from the primary resource record set regardless of the health of the primary resource record set.
If you omit the HealthCheckId element for the secondary resource record set, and if the primary resource record set is unhealthy, Amazon Route 53 always responds to DNS queries with the applicable value from the secondary resource record set. This is true regardless of the health of the associated endpoint.
You cannot create non-failover resource record sets that have the same values for the Name and Type elements as failover resource record sets.
For failover alias resource record sets, you must also include the EvaluateTargetHealth element and set the value to true.
For more information about configuring failover for Amazon Route 53, see the following topics in the Amazon Route 53 Developer Guide:
Valid values: PRIMARY | SECONDARY
TTL (integer) --
The resource record cache time to live (TTL), in seconds. Note the following:
If you're creating an alias resource record set, omit TTL. Amazon Route 53 uses the value of TTL for the alias target.
If you're associating this resource record set with a health check (if you're adding a HealthCheckId element), we recommend that you specify a TTL of 60 seconds or less so clients respond quickly to changes in health status.
All of the resource record sets in a group of weighted, latency, geolocation, or failover resource record sets must have the same value for TTL.
If a group of weighted resource record sets includes one or more weighted alias resource record sets for which the alias target is an ELB load balancer, we recommend that you specify a TTL of 60 seconds for all of the non-alias weighted resource record sets that have the same name and type. Values other than 60 seconds (the TTL for load balancers) will change the effect of the values that you specify for Weight.
ResourceRecords (list) --
Information about the resource records to act upon.
(dict) --
Information specific to the resource record.
Value (string) --
The current or new DNS record value, not to exceed 4,000 characters. In the case of a DELETE action, if the current value does not match the actual value, an error is returned. For descriptions about how to format Value for different record types, see Supported DNS Resource Record Types in the Amazon Route 53 Developer Guide.
You can specify more than one value for all record types except CNAME and SOA.
AliasTarget (dict) --
Alias resource record sets only: Information about the CloudFront distribution, Elastic Beanstalk environment, ELB load balancer, Amazon S3 bucket, or Amazon Route 53 resource record set to which you are redirecting queries. The Elastic Beanstalk environment must have a regionalized subdomain.
If you're creating resource records sets for a private hosted zone, note the following:
You can't create alias resource record sets for CloudFront distributions in a private hosted zone.
Creating geolocation alias resource record sets or latency alias resource record sets in a private hosted zone is unsupported.
For information about creating failover resource record sets in a private hosted zone, see Configuring Failover in a Private Hosted Zone in the Amazon Route 53 Developer Guide.
HostedZoneId (string) --
Alias resource records sets only: The value used depends on where the queries are routed:
A CloudFront distribution
Specify Z2FDTNDATAQYW2.
Specify the hosted zone ID for the region in which you created the environment. The environment must have a regionalized subdomain. For a list of regions and the corresponding hosted zone IDs, see AWS Elastic Beanstalk in the Regions and Endpoints chapter of the AWS General Reference.
ELB load balancer
Specify the value of the hosted zone ID for the load balancer. Use the following methods to get the hosted zone ID:
AWS Management Console: Go to the Amazon EC2; page, click Load Balancers in the navigation pane, select the load balancer, and get the value of the Hosted Zone ID field on the Description tab. Use the same process to get the DNS Name. See HostedZone$Name.
Elastic Load Balancing API: Use DescribeLoadBalancers to get the value of CanonicalHostedZoneNameID. Use the same process to get the CanonicalHostedZoneName. See HostedZone$Name.
AWS CLI: Use describe-load-balancers to get the value of CanonicalHostedZoneNameID. Use the same process to get the CanonicalHostedZoneName. See HostedZone$Name.
An Amazon S3 bucket configured as a static website
Specify the hosted zone ID for the Amazon S3 website endpoint in which you created the bucket. For more information about valid values, see the table Amazon S3 (S3) Website Endpoints in the Amazon Web Services General Reference.
Another Amazon Route 53 resource record set in your hosted zone
Specify the hosted zone ID of your hosted zone. (An alias resource record set cannot reference a resource record set in a different hosted zone.)
DNSName (string) --
Alias resource record sets only: The value that you specify depends on where you want to route queries:
A CloudFront distribution: Specify the domain name that CloudFront assigned when you created your distribution. Your CloudFront distribution must include an alternate domain name that matches the name of the resource record set. For example, if the name of the resource record set is acme.example.com, your CloudFront distribution must include acme.example.com as one of the alternate domain names. For more information, see Using Alternate Domain Names (CNAMEs) in the Amazon CloudFront Developer Guide.
Elastic Beanstalk environment: Specify the CNAME attribute for the environment. (The environment must have a regionalized domain name.) You can use the following methods to get the value of the CNAME attribute:
AWS Managment Console: For information about how to get the value by using the console, see Using Custom Domains with Elastic Beanstalk in the AWS Elastic Beanstalk Developer Guide.
Elastic Load Balancing API: Use the DescribeEnvironments action to get the value of the CNAME attribute. For more information, see DescribeEnvironments in the AWS Elastic Beanstalk API Reference.
AWS CLI: Use the describe-environments command to get the value of the CNAME attribute. For more information, see describe-environments in the AWS Command Line Interface Reference.
An ELB load balancer: Specify the DNS name associated with the load balancer. Get the DNS name by using the AWS Management Console, the ELB API, or the AWS CLI. Use the same method to get values for HostedZoneId and DNSName. If you get one value from the console and the other value from the API or the CLI, creating the resource record set will fail.
AWS Management Console: Go to the Amazon EC2 page, click Load Balancers in the navigation pane, choose the load balancer, choose the Description tab, and get the value of the DNS Name field that begins with dualstack. Use the same process to get the Hosted Zone ID. See HostedZone$Id.
Elastic Load Balancing API: Use DescribeLoadBalancers to get the value of CanonicalHostedZoneName. Use the same process to get the CanonicalHostedZoneNameId. See HostedZone$Id.
AWS CLI: Use describe-load-balancers to get the value of CanonicalHostedZoneName. Use the same process to get the CanonicalHostedZoneNameId. See HostedZoneId.
An Amazon S3 bucket that is configured as a static website: Specify the domain name of the Amazon S3 website endpoint in which you created the bucket; for example, s3-website-us-east-1.amazonaws.com. For more information about valid values, see the table Amazon Simple Storage Service (S3) Website Endpoints in the Amazon Web Services General Reference. For more information about using Amazon S3 buckets for websites, see Hosting a Static Website on Amazon S3 in the Amazon Simple Storage Service Developer Guide.
Another Amazon Route 53 resource record set: Specify the value of the Name element for a resource record set in the current hosted zone.
EvaluateTargetHealth (boolean) --
Applies only to alias, weighted alias, latency alias, and failover alias record sets: If you set the value of EvaluateTargetHealth to true for the resource record set or sets in an alias, weighted alias, latency alias, or failover alias resource record set, and if you specify a value for HealthCheck$Id for every resource record set that is referenced by these alias resource record sets, the alias resource record sets inherit the health of the referenced resource record sets.
In this configuration, when Amazon Route 53 receives a DNS query for an alias resource record set:
Amazon Route 53 looks at the resource record sets that are referenced by the alias resource record sets to determine which health checks they're using.
Amazon Route 53 checks the current status of each health check. (Amazon Route 53 periodically checks the health of the endpoint that is specified in a health check; it doesn't perform the health check when the DNS query arrives.)
Based on the status of the health checks, Amazon Route 53 determines which resource record sets are healthy. Unhealthy resource record sets are immediately removed from consideration. In addition, if all of the resource record sets that are referenced by an alias resource record set are unhealthy, that alias resource record set also is immediately removed from consideration.
Based on the configuration of the alias resource record sets (weighted alias or latency alias, for example) and the configuration of the resource record sets that they reference, Amazon Route 53 chooses a resource record set from the healthy resource record sets, and responds to the query.
Note the following:
You cannot set EvaluateTargetHealth to true when the alias target is a CloudFront distribution.
If the AWS resource that you specify in AliasTarget is a resource record set or a group of resource record sets (for example, a group of weighted resource record sets), but it is not another alias resource record set, we recommend that you associate a health check with all of the resource record sets in the alias target.For more information, see What Happens When You Omit Health Checks? in the Amazon Route 53 Developer Guide.
If you specify an Elastic Beanstalk environment in HostedZoneId and DNSName, and if the environment contains an ELB load balancer, Elastic Load Balancing routes queries only to the healthy Amazon EC2 instances that are registered with the load balancer. (An environment automatically contains an ELB load balancer if it includes more than one Amazon EC2 instance.) If you set EvaluateTargetHealth to true and either no Amazon EC2 instances are healthy or the load balancer itself is unhealthy, Amazon Route 53 routes queries to other available resources that are healthy, if any. If the environment contains a single Amazon EC2 instance, there are no special requirements.
If you specify an ELB load balancer in AliasTarget ``, Elastic Load Balancing routes queries only to the healthy Amazon EC2 instances that are registered with the load balancer. If no Amazon EC2 instances are healthy or if the load balancer itself is unhealthy, and if ``EvaluateTargetHealth is true for the corresponding alias resource record set, Amazon Route 53 routes queries to other resources. When you create a load balancer, you configure settings for Elastic Load Balancing health checks; they're not Amazon Route 53 health checks, but they perform a similar function. Do not create Amazon Route 53 health checks for the Amazon EC2 instances that you register with an ELB load balancer. For more information, see How Health Checks Work in More Complex Amazon Route 53 Configurations in the Amazon Route 53 Developers Guide.
We recommend that you set EvaluateTargetHealth to true only when you have enough idle capacity to handle the failure of one or more endpoints.
For more information and examples, see Amazon Route 53 Health Checks and DNS Failover in the Amazon Route 53 Developer Guide.
HealthCheckId (string) --
If you want Amazon Route 53 to return this resource record set in response to a DNS query only when a health check is passing, include the HealthCheckId element and specify the ID of the applicable health check.
Amazon Route 53 determines whether a resource record set is healthy based on one of the following:
By periodically sending a request to the endpoint that is specified in the health check
By aggregating the status of a specified group of health checks (calculated health checks)
By determining the current state of a CloudWatch alarm (CloudWatch metric health checks)
For information about how Amazon Route 53 determines whether a health check is healthy, see CreateHealthCheck.
The HealthCheckId element is only useful when Amazon Route 53 is choosing between two or more resource record sets to respond to a DNS query, and you want Amazon Route 53 to base the choice in part on the status of a health check. Configuring health checks only makes sense in the following configurations:
You're checking the health of the resource record sets in a weighted, latency, geolocation, or failover resource record set, and you specify health check IDs for all of the resource record sets. If the health check for one resource record set specifies an endpoint that is not healthy, Amazon Route 53 stops responding to queries using the value for that resource record set.
You set EvaluateTargetHealth to true for the resource record sets in an alias, weighted alias, latency alias, geolocation alias, or failover alias resource record set, and you specify health check IDs for all of the resource record sets that are referenced by the alias resource record sets.
For geolocation resource record sets, if an endpoint is unhealthy, Amazon Route 53 looks for a resource record set for the larger, associated geographic region. For example, suppose you have resource record sets for a state in the United States, for the United States, for North America, and for all locations. If the endpoint for the state resource record set is unhealthy, Amazon Route 53 checks the resource record sets for the United States, for North America, and for all locations (a resource record set for which the value of CountryCode is *), in that order, until it finds a resource record set for which the endpoint is healthy.
If your health checks specify the endpoint only by domain name, we recommend that you create a separate health check for each endpoint. For example, create a health check for each HTTP server that is serving content for www.example.com. For the value of FullyQualifiedDomainName, specify the domain name of the server (such as us-east-1-www.example.com), not the name of the resource record sets (example.com).
For more information, see the following topics in the Amazon Route 53 Developer Guide:
TrafficPolicyInstanceId (string) --
When you create a traffic policy instance, Amazon Route 53 automatically creates a resource record set. TrafficPolicyInstanceId is the ID of the traffic policy instance that Amazon Route 53 created this resource record set for.
NextMarker (string) --
The next page marker.
{'ChangeBatchRecords': {'Changes': {'ResourceRecordSet': {'Region': {'us-east-2'}}}}}
Gets the list of ChangeBatches in a given time period for a given hosted zone and RRSet.
Request Syntax
client.list_change_batches_by_rr_set(
HostedZoneId='string',
Name='string',
Type='SOA'|'A'|'TXT'|'NS'|'CNAME'|'MX'|'NAPTR'|'PTR'|'SRV'|'SPF'|'AAAA',
SetIdentifier='string',
StartDate='string',
EndDate='string',
MaxItems='string',
Marker='string'
)
string
[REQUIRED]
The ID of the hosted zone that you want to see changes for.
string
[REQUIRED]
The name of the RRSet that you want to see changes for.
string
[REQUIRED]
The type of the RRSet that you want to see changes for.
string
The identifier of the RRSet that you want to see changes for.
string
[REQUIRED]
The start of the time period you want to see changes for.
string
[REQUIRED]
The end of the time period you want to see changes for.
string
The maximum number of items on a page.
string
The page marker.
dict
Response Syntax
{
'MaxItems': 'string',
'Marker': 'string',
'IsTruncated': True|False,
'ChangeBatchRecords': [
{
'Id': 'string',
'SubmittedAt': datetime(2015, 1, 1),
'Status': 'PENDING'|'INSYNC',
'Comment': 'string',
'Submitter': 'string',
'Changes': [
{
'Action': 'CREATE'|'DELETE'|'UPSERT',
'ResourceRecordSet': {
'Name': 'string',
'Type': 'SOA'|'A'|'TXT'|'NS'|'CNAME'|'MX'|'NAPTR'|'PTR'|'SRV'|'SPF'|'AAAA',
'SetIdentifier': 'string',
'Weight': 123,
'Region': 'us-east-1'|'us-east-2'|'us-west-1'|'us-west-2'|'eu-west-1'|'eu-central-1'|'ap-southeast-1'|'ap-southeast-2'|'ap-northeast-1'|'ap-northeast-2'|'sa-east-1'|'cn-north-1'|'ap-south-1',
'GeoLocation': {
'ContinentCode': 'string',
'CountryCode': 'string',
'SubdivisionCode': 'string'
},
'Failover': 'PRIMARY'|'SECONDARY',
'TTL': 123,
'ResourceRecords': [
{
'Value': 'string'
},
],
'AliasTarget': {
'HostedZoneId': 'string',
'DNSName': 'string',
'EvaluateTargetHealth': True|False
},
'HealthCheckId': 'string',
'TrafficPolicyInstanceId': 'string'
}
},
]
},
],
'NextMarker': 'string'
}
Response Structure
(dict) --
The input for a ListChangeBatchesByRRSet request.
MaxItems (string) --
The maximum number of items on a page.
Marker (string) --
The page marker.
IsTruncated (boolean) --
A flag that indicates if there are more change batches to list.
ChangeBatchRecords (list) --
The change batches within the given hosted zone and time period.
(dict) --
A complex type that lists the changes and information for a ChangeBatch.
Id (string) --
The ID of the request. Use this ID to track when the change has completed across all Amazon Route 53 DNS servers.
SubmittedAt (datetime) --
The date and time the change was submitted, in the format YYYY-MM-DDThh:mm:ssZ, as specified in the ISO 8601 standard (for example, 2009-11-19T19:37:58Z). The Z after the time indicates that the time is listed in Coordinated Universal Time (UTC).
Status (string) --
The current state of the request. PENDING indicates that this request has not yet been applied to all Amazon Route 53 DNS servers.
Valid Values: PENDING | INSYNC
Comment (string) --
A complex type that describes change information about changes made to your hosted zone.
This element contains an ID that you use when performing a GetChange action to get detailed information about the change.
Submitter (string) --
The AWS account ID attached to the changes.
Changes (list) --
A list of changes made in the ChangeBatch.
(dict) --
The information for each resource record set that you want to change.
Action (string) --
The action to perform:
CREATE: Creates a resource record set that has the specified values.
DELETE: Deletes a existing resource record set that has the specified values for Name, Type, SetIdentifier (for latency, weighted, geolocation, and failover resource record sets), and TTL (except alias resource record sets, for which the TTL is determined by the AWS resource that you're routing DNS queries to).
UPSERT: If a resource record set does not already exist, Amazon Route 53 creates it. If a resource record set does exist, Amazon Route 53 updates it with the values in the request. Amazon Route 53 can update an existing resource record set only when all of the following values match: Name, Type, and SetIdentifier (for weighted, latency, geolocation, and failover resource record sets).
ResourceRecordSet (dict) --
Information about the resource record set to create or delete.
Name (string) --
The name of the domain you want to perform the action on.
Enter a fully qualified domain name, for example, www.example.com. You can optionally include a trailing dot. If you omit the trailing dot, Amazon Route 53 still assumes that the domain name that you specify is fully qualified. This means that Amazon Route 53 treats www.example.com (without a trailing dot) and www.example.com. (with a trailing dot) as identical.
For information about how to specify characters other than a-z, 0-9, and - (hyphen) and how to specify internationalized domain names, see DNS Domain Name Format in the Amazon Route 53 Developer Guide.
You can use the asterisk (*) wildcard to replace the leftmost label in a domain name. For example, *.example.com. Note the following:
The * must replace the entire label. For example, you can't specify *prod.example.com or prod*.example.com.
The * can't replace any of the middle labels, for example, marketing.*.example.com.
If you include * in any position other than the leftmost label in a domain name, DNS treats it as an * character (ASCII 42), not as a wildcard.
You can use the * wildcard as the leftmost label in a domain name, for example, *.example.com. You cannot use an * for one of the middle labels, for example, marketing.*.example.com. In addition, the * must replace the entire label; for example, you can't specify prod*.example.com.
Type (string) --
The DNS record type. For information about different record types and how data is encoded for them, see Supported DNS Resource Record Types in the Amazon Route 53 Developer Guide.
Valid values for basic resource record sets: A | AAAA | CNAME | MX | NAPTR | NS | PTR | SOA | SPF | SRV | TXT
Values for weighted, latency, geolocation, and failover resource record sets: A | AAAA | CNAME | MX | NAPTR | PTR | SPF | SRV | TXT. When creating a group of weighted, latency, geolocation, or failover resource record sets, specify the same value for all of the resource record sets in the group.
Values for alias resource record sets:
CloudFront distributions: A
Elastic Beanstalk environment that has a regionalized subdomain: A
ELB load balancers: A | AAAA
Amazon S3 buckets: A
Another resource record set in this hosted zone: Specify the type of the resource record set for which you're creating the alias. Specify any value except NS or SOA.
SetIdentifier (string) --
Weighted, Latency, Geo, and Failover resource record sets only: An identifier that differentiates among multiple resource record sets that have the same combination of DNS name and type. The value of SetIdentifier must be unique for each resource record set that has the same combination of DNS name and type. Omit SetIdentifier for any other types of record sets.
Weight (integer) --
Weighted resource record sets only: Among resource record sets that have the same combination of DNS name and type, a value that determines the proportion of DNS queries that Amazon Route 53 responds to using the current resource record set. Amazon Route 53 calculates the sum of the weights for the resource record sets that have the same combination of DNS name and type. Amazon Route 53 then responds to queries based on the ratio of a resource's weight to the total. Note the following:
You must specify a value for the Weight element for every weighted resource record set.
You can only specify one ResourceRecord per weighted resource record set.
You cannot create latency, failover, or geolocation resource record sets that have the same values for the Name and Type elements as weighted resource record sets.
You can create a maximum of 100 weighted resource record sets that have the same values for the Name and Type elements.
For weighted (but not weighted alias) resource record sets, if you set Weight to 0 for a resource record set, Amazon Route 53 never responds to queries with the applicable value for that resource record set. However, if you set Weight to 0 for all resource record sets that have the same combination of DNS name and type, traffic is routed to all resources with equal probability. The effect of setting Weight to 0 is different when you associate health checks with weighted resource record sets. For more information, see Options for Configuring Amazon Route 53 Active-Active and Active-Passive Failover in the Amazon Route 53 Developer Guide.
Region (string) --
Latency-based resource record sets only: The Amazon EC2 region where the resource that is specified in this resource record set resides. The resource typically is an AWS resource, such as an Amazon EC2 instance or an ELB load balancer, and is referred to by an IP address or a DNS domain name, depending on the record type.
When Amazon Route 53 receives a DNS query for a domain name and type for which you have created latency resource record sets, Amazon Route 53 selects the latency resource record set that has the lowest latency between the end user and the associated Amazon EC2 region. Amazon Route 53 then returns the value that is associated with the selected resource record set.
Note the following:
You can only specify one ResourceRecord per latency resource record set.
You can only create one latency resource record set for each Amazon EC2 region.
You are not required to create latency resource record sets for all Amazon EC2 regions. Amazon Route 53 will choose the region with the best latency from among the regions for which you create latency resource record sets.
You cannot create non-latency resource record sets that have the same values for the Name and Type elements as latency resource record sets.
GeoLocation (dict) --
Geo location resource record sets only: A complex type that lets you control how Amazon Route 53 responds to DNS queries based on the geographic origin of the query. For example, if you want all queries from Africa to be routed to a web server with an IP address of 192.0.2.111, create a resource record set with a Type of A and a ContinentCode of AF.
If you create separate resource record sets for overlapping geographic regions (for example, one resource record set for a continent and one for a country on the same continent), priority goes to the smallest geographic region. This allows you to route most queries for a continent to one resource and to route queries for a country on that continent to a different resource.
You cannot create two geolocation resource record sets that specify the same geographic location.
The value * in the CountryCode element matches all geographic locations that aren't specified in other geolocation resource record sets that have the same values for the Name and Type elements.
You cannot create non-geolocation resource record sets that have the same values for the Name and Type elements as geolocation resource record sets.
ContinentCode (string) --
The two-letter code for the continent.
Valid values: AF | AN | AS | EU | OC | NA | SA
Constraint: Specifying ContinentCode with either CountryCode or SubdivisionCode returns an InvalidInput error.
CountryCode (string) --
The two-letter code for the country.
SubdivisionCode (string) --
The code for the subdivision, for example, a state in the United States or a province in Canada.
Failover (string) --
Failover resource record sets only: To configure failover, you add the Failover element to two resource record sets. For one resource record set, you specify PRIMARY as the value for Failover; for the other resource record set, you specify SECONDARY. In addition, you include the HealthCheckId element and specify the health check that you want Amazon Route 53 to perform for each resource record set.
Except where noted, the following failover behaviors assume that you have included the HealthCheckId element in both resource record sets:
When the primary resource record set is healthy, Amazon Route 53 responds to DNS queries with the applicable value from the primary resource record set regardless of the health of the secondary resource record set.
When the primary resource record set is unhealthy and the secondary resource record set is healthy, Amazon Route 53 responds to DNS queries with the applicable value from the secondary resource record set.
When the secondary resource record set is unhealthy, Amazon Route 53 responds to DNS queries with the applicable value from the primary resource record set regardless of the health of the primary resource record set.
If you omit the HealthCheckId element for the secondary resource record set, and if the primary resource record set is unhealthy, Amazon Route 53 always responds to DNS queries with the applicable value from the secondary resource record set. This is true regardless of the health of the associated endpoint.
You cannot create non-failover resource record sets that have the same values for the Name and Type elements as failover resource record sets.
For failover alias resource record sets, you must also include the EvaluateTargetHealth element and set the value to true.
For more information about configuring failover for Amazon Route 53, see the following topics in the Amazon Route 53 Developer Guide:
Valid values: PRIMARY | SECONDARY
TTL (integer) --
The resource record cache time to live (TTL), in seconds. Note the following:
If you're creating an alias resource record set, omit TTL. Amazon Route 53 uses the value of TTL for the alias target.
If you're associating this resource record set with a health check (if you're adding a HealthCheckId element), we recommend that you specify a TTL of 60 seconds or less so clients respond quickly to changes in health status.
All of the resource record sets in a group of weighted, latency, geolocation, or failover resource record sets must have the same value for TTL.
If a group of weighted resource record sets includes one or more weighted alias resource record sets for which the alias target is an ELB load balancer, we recommend that you specify a TTL of 60 seconds for all of the non-alias weighted resource record sets that have the same name and type. Values other than 60 seconds (the TTL for load balancers) will change the effect of the values that you specify for Weight.
ResourceRecords (list) --
Information about the resource records to act upon.
(dict) --
Information specific to the resource record.
Value (string) --
The current or new DNS record value, not to exceed 4,000 characters. In the case of a DELETE action, if the current value does not match the actual value, an error is returned. For descriptions about how to format Value for different record types, see Supported DNS Resource Record Types in the Amazon Route 53 Developer Guide.
You can specify more than one value for all record types except CNAME and SOA.
AliasTarget (dict) --
Alias resource record sets only: Information about the CloudFront distribution, Elastic Beanstalk environment, ELB load balancer, Amazon S3 bucket, or Amazon Route 53 resource record set to which you are redirecting queries. The Elastic Beanstalk environment must have a regionalized subdomain.
If you're creating resource records sets for a private hosted zone, note the following:
You can't create alias resource record sets for CloudFront distributions in a private hosted zone.
Creating geolocation alias resource record sets or latency alias resource record sets in a private hosted zone is unsupported.
For information about creating failover resource record sets in a private hosted zone, see Configuring Failover in a Private Hosted Zone in the Amazon Route 53 Developer Guide.
HostedZoneId (string) --
Alias resource records sets only: The value used depends on where the queries are routed:
A CloudFront distribution
Specify Z2FDTNDATAQYW2.
Specify the hosted zone ID for the region in which you created the environment. The environment must have a regionalized subdomain. For a list of regions and the corresponding hosted zone IDs, see AWS Elastic Beanstalk in the Regions and Endpoints chapter of the AWS General Reference.
ELB load balancer
Specify the value of the hosted zone ID for the load balancer. Use the following methods to get the hosted zone ID:
AWS Management Console: Go to the Amazon EC2; page, click Load Balancers in the navigation pane, select the load balancer, and get the value of the Hosted Zone ID field on the Description tab. Use the same process to get the DNS Name. See HostedZone$Name.
Elastic Load Balancing API: Use DescribeLoadBalancers to get the value of CanonicalHostedZoneNameID. Use the same process to get the CanonicalHostedZoneName. See HostedZone$Name.
AWS CLI: Use describe-load-balancers to get the value of CanonicalHostedZoneNameID. Use the same process to get the CanonicalHostedZoneName. See HostedZone$Name.
An Amazon S3 bucket configured as a static website
Specify the hosted zone ID for the Amazon S3 website endpoint in which you created the bucket. For more information about valid values, see the table Amazon S3 (S3) Website Endpoints in the Amazon Web Services General Reference.
Another Amazon Route 53 resource record set in your hosted zone
Specify the hosted zone ID of your hosted zone. (An alias resource record set cannot reference a resource record set in a different hosted zone.)
DNSName (string) --
Alias resource record sets only: The value that you specify depends on where you want to route queries:
A CloudFront distribution: Specify the domain name that CloudFront assigned when you created your distribution. Your CloudFront distribution must include an alternate domain name that matches the name of the resource record set. For example, if the name of the resource record set is acme.example.com, your CloudFront distribution must include acme.example.com as one of the alternate domain names. For more information, see Using Alternate Domain Names (CNAMEs) in the Amazon CloudFront Developer Guide.
Elastic Beanstalk environment: Specify the CNAME attribute for the environment. (The environment must have a regionalized domain name.) You can use the following methods to get the value of the CNAME attribute:
AWS Managment Console: For information about how to get the value by using the console, see Using Custom Domains with Elastic Beanstalk in the AWS Elastic Beanstalk Developer Guide.
Elastic Load Balancing API: Use the DescribeEnvironments action to get the value of the CNAME attribute. For more information, see DescribeEnvironments in the AWS Elastic Beanstalk API Reference.
AWS CLI: Use the describe-environments command to get the value of the CNAME attribute. For more information, see describe-environments in the AWS Command Line Interface Reference.
An ELB load balancer: Specify the DNS name associated with the load balancer. Get the DNS name by using the AWS Management Console, the ELB API, or the AWS CLI. Use the same method to get values for HostedZoneId and DNSName. If you get one value from the console and the other value from the API or the CLI, creating the resource record set will fail.
AWS Management Console: Go to the Amazon EC2 page, click Load Balancers in the navigation pane, choose the load balancer, choose the Description tab, and get the value of the DNS Name field that begins with dualstack. Use the same process to get the Hosted Zone ID. See HostedZone$Id.
Elastic Load Balancing API: Use DescribeLoadBalancers to get the value of CanonicalHostedZoneName. Use the same process to get the CanonicalHostedZoneNameId. See HostedZone$Id.
AWS CLI: Use describe-load-balancers to get the value of CanonicalHostedZoneName. Use the same process to get the CanonicalHostedZoneNameId. See HostedZoneId.
An Amazon S3 bucket that is configured as a static website: Specify the domain name of the Amazon S3 website endpoint in which you created the bucket; for example, s3-website-us-east-1.amazonaws.com. For more information about valid values, see the table Amazon Simple Storage Service (S3) Website Endpoints in the Amazon Web Services General Reference. For more information about using Amazon S3 buckets for websites, see Hosting a Static Website on Amazon S3 in the Amazon Simple Storage Service Developer Guide.
Another Amazon Route 53 resource record set: Specify the value of the Name element for a resource record set in the current hosted zone.
EvaluateTargetHealth (boolean) --
Applies only to alias, weighted alias, latency alias, and failover alias record sets: If you set the value of EvaluateTargetHealth to true for the resource record set or sets in an alias, weighted alias, latency alias, or failover alias resource record set, and if you specify a value for HealthCheck$Id for every resource record set that is referenced by these alias resource record sets, the alias resource record sets inherit the health of the referenced resource record sets.
In this configuration, when Amazon Route 53 receives a DNS query for an alias resource record set:
Amazon Route 53 looks at the resource record sets that are referenced by the alias resource record sets to determine which health checks they're using.
Amazon Route 53 checks the current status of each health check. (Amazon Route 53 periodically checks the health of the endpoint that is specified in a health check; it doesn't perform the health check when the DNS query arrives.)
Based on the status of the health checks, Amazon Route 53 determines which resource record sets are healthy. Unhealthy resource record sets are immediately removed from consideration. In addition, if all of the resource record sets that are referenced by an alias resource record set are unhealthy, that alias resource record set also is immediately removed from consideration.
Based on the configuration of the alias resource record sets (weighted alias or latency alias, for example) and the configuration of the resource record sets that they reference, Amazon Route 53 chooses a resource record set from the healthy resource record sets, and responds to the query.
Note the following:
You cannot set EvaluateTargetHealth to true when the alias target is a CloudFront distribution.
If the AWS resource that you specify in AliasTarget is a resource record set or a group of resource record sets (for example, a group of weighted resource record sets), but it is not another alias resource record set, we recommend that you associate a health check with all of the resource record sets in the alias target.For more information, see What Happens When You Omit Health Checks? in the Amazon Route 53 Developer Guide.
If you specify an Elastic Beanstalk environment in HostedZoneId and DNSName, and if the environment contains an ELB load balancer, Elastic Load Balancing routes queries only to the healthy Amazon EC2 instances that are registered with the load balancer. (An environment automatically contains an ELB load balancer if it includes more than one Amazon EC2 instance.) If you set EvaluateTargetHealth to true and either no Amazon EC2 instances are healthy or the load balancer itself is unhealthy, Amazon Route 53 routes queries to other available resources that are healthy, if any. If the environment contains a single Amazon EC2 instance, there are no special requirements.
If you specify an ELB load balancer in AliasTarget ``, Elastic Load Balancing routes queries only to the healthy Amazon EC2 instances that are registered with the load balancer. If no Amazon EC2 instances are healthy or if the load balancer itself is unhealthy, and if ``EvaluateTargetHealth is true for the corresponding alias resource record set, Amazon Route 53 routes queries to other resources. When you create a load balancer, you configure settings for Elastic Load Balancing health checks; they're not Amazon Route 53 health checks, but they perform a similar function. Do not create Amazon Route 53 health checks for the Amazon EC2 instances that you register with an ELB load balancer. For more information, see How Health Checks Work in More Complex Amazon Route 53 Configurations in the Amazon Route 53 Developers Guide.
We recommend that you set EvaluateTargetHealth to true only when you have enough idle capacity to handle the failure of one or more endpoints.
For more information and examples, see Amazon Route 53 Health Checks and DNS Failover in the Amazon Route 53 Developer Guide.
HealthCheckId (string) --
If you want Amazon Route 53 to return this resource record set in response to a DNS query only when a health check is passing, include the HealthCheckId element and specify the ID of the applicable health check.
Amazon Route 53 determines whether a resource record set is healthy based on one of the following:
By periodically sending a request to the endpoint that is specified in the health check
By aggregating the status of a specified group of health checks (calculated health checks)
By determining the current state of a CloudWatch alarm (CloudWatch metric health checks)
For information about how Amazon Route 53 determines whether a health check is healthy, see CreateHealthCheck.
The HealthCheckId element is only useful when Amazon Route 53 is choosing between two or more resource record sets to respond to a DNS query, and you want Amazon Route 53 to base the choice in part on the status of a health check. Configuring health checks only makes sense in the following configurations:
You're checking the health of the resource record sets in a weighted, latency, geolocation, or failover resource record set, and you specify health check IDs for all of the resource record sets. If the health check for one resource record set specifies an endpoint that is not healthy, Amazon Route 53 stops responding to queries using the value for that resource record set.
You set EvaluateTargetHealth to true for the resource record sets in an alias, weighted alias, latency alias, geolocation alias, or failover alias resource record set, and you specify health check IDs for all of the resource record sets that are referenced by the alias resource record sets.
For geolocation resource record sets, if an endpoint is unhealthy, Amazon Route 53 looks for a resource record set for the larger, associated geographic region. For example, suppose you have resource record sets for a state in the United States, for the United States, for North America, and for all locations. If the endpoint for the state resource record set is unhealthy, Amazon Route 53 checks the resource record sets for the United States, for North America, and for all locations (a resource record set for which the value of CountryCode is *), in that order, until it finds a resource record set for which the endpoint is healthy.
If your health checks specify the endpoint only by domain name, we recommend that you create a separate health check for each endpoint. For example, create a health check for each HTTP server that is serving content for www.example.com. For the value of FullyQualifiedDomainName, specify the domain name of the server (such as us-east-1-www.example.com), not the name of the resource record sets (example.com).
For more information, see the following topics in the Amazon Route 53 Developer Guide:
TrafficPolicyInstanceId (string) --
When you create a traffic policy instance, Amazon Route 53 automatically creates a resource record set. TrafficPolicyInstanceId is the ID of the traffic policy instance that Amazon Route 53 created this resource record set for.
NextMarker (string) --
The next page marker.
{'ResourceRecordSets': {'Region': {'us-east-2'}}}
Lists the resource record sets in a specified hosted zone.
ListResourceRecordSets returns up to 100 resource record sets at a time in ASCII order, beginning at a position specified by the name and type elements. The action sorts results first by DNS name with the labels reversed, for example:
com.example.www.
Note the trailing dot, which can change the sort order in some circumstances.
When multiple records have the same DNS name, the action sorts results by the record type.
You can use the name and type elements to adjust the beginning position of the list of resource record sets returned:
If you do not specify Name or Type
The results begin with the first resource record set that the hosted zone contains.
If you specify Name but not Type
The results begin with the first resource record set in the list whose name is greater than or equal to Name.
If you specify Type but not Name
Amazon Route 53 returns the InvalidInput error.
If you specify both Name and Type
The results begin with the first resource record set in the list whose name is greater than or equal to Name, and whose type is greater than or equal to Type.
This action returns the most current version of the records. This includes records that are PENDING, and that are not yet available on all Amazon Route 53 DNS servers.
To ensure that you get an accurate listing of the resource record sets for a hosted zone at a point in time, do not submit a ChangeResourceRecordSets request while you're paging through the results of a ListResourceRecordSets request. If you do, some pages may display results without the latest changes while other pages display results with the latest changes.
Request Syntax
client.list_resource_record_sets(
HostedZoneId='string',
StartRecordName='string',
StartRecordType='SOA'|'A'|'TXT'|'NS'|'CNAME'|'MX'|'NAPTR'|'PTR'|'SRV'|'SPF'|'AAAA',
StartRecordIdentifier='string',
MaxItems='string'
)
string
[REQUIRED]
The ID of the hosted zone that contains the resource record sets that you want to get.
string
The first name in the lexicographic ordering of domain names that you want the ListResourceRecordSets request to list.
string
The type of resource record set to begin the record listing from.
Valid values for basic resource record sets: A | AAAA | CNAME | MX | NAPTR | NS | PTR | SOA | SPF | SRV | TXT
Values for weighted, latency, geo, and failover resource record sets: A | AAAA | CNAME | MX | NAPTR | PTR | SPF | SRV | TXT
Values for alias resource record sets:
CloudFront distribution: A
Elastic Beanstalk environment that has a regionalized subdomain: A
ELB load balancer: A | AAAA
Amazon S3 bucket: A
Constraint: Specifying type without specifying name returns an InvalidInput error.
string
Weighted resource record sets only: If results were truncated for a given DNS name and type, specify the value of NextRecordIdentifier from the previous response to get the next resource record set that has the current DNS name and type.
string
(Optional) The maximum number of resource records sets to include in the response body for this request. If the response includes more than maxitems resource record sets, the value of the IsTruncated element in the response is true, and the values of the NextRecordName and NextRecordType elements in the response identify the first resource record set in the next group of maxitems resource record sets.
dict
Response Syntax
{
'ResourceRecordSets': [
{
'Name': 'string',
'Type': 'SOA'|'A'|'TXT'|'NS'|'CNAME'|'MX'|'NAPTR'|'PTR'|'SRV'|'SPF'|'AAAA',
'SetIdentifier': 'string',
'Weight': 123,
'Region': 'us-east-1'|'us-east-2'|'us-west-1'|'us-west-2'|'eu-west-1'|'eu-central-1'|'ap-southeast-1'|'ap-southeast-2'|'ap-northeast-1'|'ap-northeast-2'|'sa-east-1'|'cn-north-1'|'ap-south-1',
'GeoLocation': {
'ContinentCode': 'string',
'CountryCode': 'string',
'SubdivisionCode': 'string'
},
'Failover': 'PRIMARY'|'SECONDARY',
'TTL': 123,
'ResourceRecords': [
{
'Value': 'string'
},
],
'AliasTarget': {
'HostedZoneId': 'string',
'DNSName': 'string',
'EvaluateTargetHealth': True|False
},
'HealthCheckId': 'string',
'TrafficPolicyInstanceId': 'string'
},
],
'IsTruncated': True|False,
'NextRecordName': 'string',
'NextRecordType': 'SOA'|'A'|'TXT'|'NS'|'CNAME'|'MX'|'NAPTR'|'PTR'|'SRV'|'SPF'|'AAAA',
'NextRecordIdentifier': 'string',
'MaxItems': 'string'
}
Response Structure
(dict) --
A complex type that contains list information for the resource record set.
ResourceRecordSets (list) --
Information about multiple resource record sets.
(dict) --
Information about the resource record set to create or delete.
Name (string) --
The name of the domain you want to perform the action on.
Enter a fully qualified domain name, for example, www.example.com. You can optionally include a trailing dot. If you omit the trailing dot, Amazon Route 53 still assumes that the domain name that you specify is fully qualified. This means that Amazon Route 53 treats www.example.com (without a trailing dot) and www.example.com. (with a trailing dot) as identical.
For information about how to specify characters other than a-z, 0-9, and - (hyphen) and how to specify internationalized domain names, see DNS Domain Name Format in the Amazon Route 53 Developer Guide.
You can use the asterisk (*) wildcard to replace the leftmost label in a domain name. For example, *.example.com. Note the following:
The * must replace the entire label. For example, you can't specify *prod.example.com or prod*.example.com.
The * can't replace any of the middle labels, for example, marketing.*.example.com.
If you include * in any position other than the leftmost label in a domain name, DNS treats it as an * character (ASCII 42), not as a wildcard.
You can use the * wildcard as the leftmost label in a domain name, for example, *.example.com. You cannot use an * for one of the middle labels, for example, marketing.*.example.com. In addition, the * must replace the entire label; for example, you can't specify prod*.example.com.
Type (string) --
The DNS record type. For information about different record types and how data is encoded for them, see Supported DNS Resource Record Types in the Amazon Route 53 Developer Guide.
Valid values for basic resource record sets: A | AAAA | CNAME | MX | NAPTR | NS | PTR | SOA | SPF | SRV | TXT
Values for weighted, latency, geolocation, and failover resource record sets: A | AAAA | CNAME | MX | NAPTR | PTR | SPF | SRV | TXT. When creating a group of weighted, latency, geolocation, or failover resource record sets, specify the same value for all of the resource record sets in the group.
Values for alias resource record sets:
CloudFront distributions: A
Elastic Beanstalk environment that has a regionalized subdomain: A
ELB load balancers: A | AAAA
Amazon S3 buckets: A
Another resource record set in this hosted zone: Specify the type of the resource record set for which you're creating the alias. Specify any value except NS or SOA.
SetIdentifier (string) --
Weighted, Latency, Geo, and Failover resource record sets only: An identifier that differentiates among multiple resource record sets that have the same combination of DNS name and type. The value of SetIdentifier must be unique for each resource record set that has the same combination of DNS name and type. Omit SetIdentifier for any other types of record sets.
Weight (integer) --
Weighted resource record sets only: Among resource record sets that have the same combination of DNS name and type, a value that determines the proportion of DNS queries that Amazon Route 53 responds to using the current resource record set. Amazon Route 53 calculates the sum of the weights for the resource record sets that have the same combination of DNS name and type. Amazon Route 53 then responds to queries based on the ratio of a resource's weight to the total. Note the following:
You must specify a value for the Weight element for every weighted resource record set.
You can only specify one ResourceRecord per weighted resource record set.
You cannot create latency, failover, or geolocation resource record sets that have the same values for the Name and Type elements as weighted resource record sets.
You can create a maximum of 100 weighted resource record sets that have the same values for the Name and Type elements.
For weighted (but not weighted alias) resource record sets, if you set Weight to 0 for a resource record set, Amazon Route 53 never responds to queries with the applicable value for that resource record set. However, if you set Weight to 0 for all resource record sets that have the same combination of DNS name and type, traffic is routed to all resources with equal probability. The effect of setting Weight to 0 is different when you associate health checks with weighted resource record sets. For more information, see Options for Configuring Amazon Route 53 Active-Active and Active-Passive Failover in the Amazon Route 53 Developer Guide.
Region (string) --
Latency-based resource record sets only: The Amazon EC2 region where the resource that is specified in this resource record set resides. The resource typically is an AWS resource, such as an Amazon EC2 instance or an ELB load balancer, and is referred to by an IP address or a DNS domain name, depending on the record type.
When Amazon Route 53 receives a DNS query for a domain name and type for which you have created latency resource record sets, Amazon Route 53 selects the latency resource record set that has the lowest latency between the end user and the associated Amazon EC2 region. Amazon Route 53 then returns the value that is associated with the selected resource record set.
Note the following:
You can only specify one ResourceRecord per latency resource record set.
You can only create one latency resource record set for each Amazon EC2 region.
You are not required to create latency resource record sets for all Amazon EC2 regions. Amazon Route 53 will choose the region with the best latency from among the regions for which you create latency resource record sets.
You cannot create non-latency resource record sets that have the same values for the Name and Type elements as latency resource record sets.
GeoLocation (dict) --
Geo location resource record sets only: A complex type that lets you control how Amazon Route 53 responds to DNS queries based on the geographic origin of the query. For example, if you want all queries from Africa to be routed to a web server with an IP address of 192.0.2.111, create a resource record set with a Type of A and a ContinentCode of AF.
If you create separate resource record sets for overlapping geographic regions (for example, one resource record set for a continent and one for a country on the same continent), priority goes to the smallest geographic region. This allows you to route most queries for a continent to one resource and to route queries for a country on that continent to a different resource.
You cannot create two geolocation resource record sets that specify the same geographic location.
The value * in the CountryCode element matches all geographic locations that aren't specified in other geolocation resource record sets that have the same values for the Name and Type elements.
You cannot create non-geolocation resource record sets that have the same values for the Name and Type elements as geolocation resource record sets.
ContinentCode (string) --
The two-letter code for the continent.
Valid values: AF | AN | AS | EU | OC | NA | SA
Constraint: Specifying ContinentCode with either CountryCode or SubdivisionCode returns an InvalidInput error.
CountryCode (string) --
The two-letter code for the country.
SubdivisionCode (string) --
The code for the subdivision, for example, a state in the United States or a province in Canada.
Failover (string) --
Failover resource record sets only: To configure failover, you add the Failover element to two resource record sets. For one resource record set, you specify PRIMARY as the value for Failover; for the other resource record set, you specify SECONDARY. In addition, you include the HealthCheckId element and specify the health check that you want Amazon Route 53 to perform for each resource record set.
Except where noted, the following failover behaviors assume that you have included the HealthCheckId element in both resource record sets:
When the primary resource record set is healthy, Amazon Route 53 responds to DNS queries with the applicable value from the primary resource record set regardless of the health of the secondary resource record set.
When the primary resource record set is unhealthy and the secondary resource record set is healthy, Amazon Route 53 responds to DNS queries with the applicable value from the secondary resource record set.
When the secondary resource record set is unhealthy, Amazon Route 53 responds to DNS queries with the applicable value from the primary resource record set regardless of the health of the primary resource record set.
If you omit the HealthCheckId element for the secondary resource record set, and if the primary resource record set is unhealthy, Amazon Route 53 always responds to DNS queries with the applicable value from the secondary resource record set. This is true regardless of the health of the associated endpoint.
You cannot create non-failover resource record sets that have the same values for the Name and Type elements as failover resource record sets.
For failover alias resource record sets, you must also include the EvaluateTargetHealth element and set the value to true.
For more information about configuring failover for Amazon Route 53, see the following topics in the Amazon Route 53 Developer Guide:
Valid values: PRIMARY | SECONDARY
TTL (integer) --
The resource record cache time to live (TTL), in seconds. Note the following:
If you're creating an alias resource record set, omit TTL. Amazon Route 53 uses the value of TTL for the alias target.
If you're associating this resource record set with a health check (if you're adding a HealthCheckId element), we recommend that you specify a TTL of 60 seconds or less so clients respond quickly to changes in health status.
All of the resource record sets in a group of weighted, latency, geolocation, or failover resource record sets must have the same value for TTL.
If a group of weighted resource record sets includes one or more weighted alias resource record sets for which the alias target is an ELB load balancer, we recommend that you specify a TTL of 60 seconds for all of the non-alias weighted resource record sets that have the same name and type. Values other than 60 seconds (the TTL for load balancers) will change the effect of the values that you specify for Weight.
ResourceRecords (list) --
Information about the resource records to act upon.
(dict) --
Information specific to the resource record.
Value (string) --
The current or new DNS record value, not to exceed 4,000 characters. In the case of a DELETE action, if the current value does not match the actual value, an error is returned. For descriptions about how to format Value for different record types, see Supported DNS Resource Record Types in the Amazon Route 53 Developer Guide.
You can specify more than one value for all record types except CNAME and SOA.
AliasTarget (dict) --
Alias resource record sets only: Information about the CloudFront distribution, Elastic Beanstalk environment, ELB load balancer, Amazon S3 bucket, or Amazon Route 53 resource record set to which you are redirecting queries. The Elastic Beanstalk environment must have a regionalized subdomain.
If you're creating resource records sets for a private hosted zone, note the following:
You can't create alias resource record sets for CloudFront distributions in a private hosted zone.
Creating geolocation alias resource record sets or latency alias resource record sets in a private hosted zone is unsupported.
For information about creating failover resource record sets in a private hosted zone, see Configuring Failover in a Private Hosted Zone in the Amazon Route 53 Developer Guide.
HostedZoneId (string) --
Alias resource records sets only: The value used depends on where the queries are routed:
A CloudFront distribution
Specify Z2FDTNDATAQYW2.
Specify the hosted zone ID for the region in which you created the environment. The environment must have a regionalized subdomain. For a list of regions and the corresponding hosted zone IDs, see AWS Elastic Beanstalk in the Regions and Endpoints chapter of the AWS General Reference.
ELB load balancer
Specify the value of the hosted zone ID for the load balancer. Use the following methods to get the hosted zone ID:
AWS Management Console: Go to the Amazon EC2; page, click Load Balancers in the navigation pane, select the load balancer, and get the value of the Hosted Zone ID field on the Description tab. Use the same process to get the DNS Name. See HostedZone$Name.
Elastic Load Balancing API: Use DescribeLoadBalancers to get the value of CanonicalHostedZoneNameID. Use the same process to get the CanonicalHostedZoneName. See HostedZone$Name.
AWS CLI: Use describe-load-balancers to get the value of CanonicalHostedZoneNameID. Use the same process to get the CanonicalHostedZoneName. See HostedZone$Name.
An Amazon S3 bucket configured as a static website
Specify the hosted zone ID for the Amazon S3 website endpoint in which you created the bucket. For more information about valid values, see the table Amazon S3 (S3) Website Endpoints in the Amazon Web Services General Reference.
Another Amazon Route 53 resource record set in your hosted zone
Specify the hosted zone ID of your hosted zone. (An alias resource record set cannot reference a resource record set in a different hosted zone.)
DNSName (string) --
Alias resource record sets only: The value that you specify depends on where you want to route queries:
A CloudFront distribution: Specify the domain name that CloudFront assigned when you created your distribution. Your CloudFront distribution must include an alternate domain name that matches the name of the resource record set. For example, if the name of the resource record set is acme.example.com, your CloudFront distribution must include acme.example.com as one of the alternate domain names. For more information, see Using Alternate Domain Names (CNAMEs) in the Amazon CloudFront Developer Guide.
Elastic Beanstalk environment: Specify the CNAME attribute for the environment. (The environment must have a regionalized domain name.) You can use the following methods to get the value of the CNAME attribute:
AWS Managment Console: For information about how to get the value by using the console, see Using Custom Domains with Elastic Beanstalk in the AWS Elastic Beanstalk Developer Guide.
Elastic Load Balancing API: Use the DescribeEnvironments action to get the value of the CNAME attribute. For more information, see DescribeEnvironments in the AWS Elastic Beanstalk API Reference.
AWS CLI: Use the describe-environments command to get the value of the CNAME attribute. For more information, see describe-environments in the AWS Command Line Interface Reference.
An ELB load balancer: Specify the DNS name associated with the load balancer. Get the DNS name by using the AWS Management Console, the ELB API, or the AWS CLI. Use the same method to get values for HostedZoneId and DNSName. If you get one value from the console and the other value from the API or the CLI, creating the resource record set will fail.
AWS Management Console: Go to the Amazon EC2 page, click Load Balancers in the navigation pane, choose the load balancer, choose the Description tab, and get the value of the DNS Name field that begins with dualstack. Use the same process to get the Hosted Zone ID. See HostedZone$Id.
Elastic Load Balancing API: Use DescribeLoadBalancers to get the value of CanonicalHostedZoneName. Use the same process to get the CanonicalHostedZoneNameId. See HostedZone$Id.
AWS CLI: Use describe-load-balancers to get the value of CanonicalHostedZoneName. Use the same process to get the CanonicalHostedZoneNameId. See HostedZoneId.
An Amazon S3 bucket that is configured as a static website: Specify the domain name of the Amazon S3 website endpoint in which you created the bucket; for example, s3-website-us-east-1.amazonaws.com. For more information about valid values, see the table Amazon Simple Storage Service (S3) Website Endpoints in the Amazon Web Services General Reference. For more information about using Amazon S3 buckets for websites, see Hosting a Static Website on Amazon S3 in the Amazon Simple Storage Service Developer Guide.
Another Amazon Route 53 resource record set: Specify the value of the Name element for a resource record set in the current hosted zone.
EvaluateTargetHealth (boolean) --
Applies only to alias, weighted alias, latency alias, and failover alias record sets: If you set the value of EvaluateTargetHealth to true for the resource record set or sets in an alias, weighted alias, latency alias, or failover alias resource record set, and if you specify a value for HealthCheck$Id for every resource record set that is referenced by these alias resource record sets, the alias resource record sets inherit the health of the referenced resource record sets.
In this configuration, when Amazon Route 53 receives a DNS query for an alias resource record set:
Amazon Route 53 looks at the resource record sets that are referenced by the alias resource record sets to determine which health checks they're using.
Amazon Route 53 checks the current status of each health check. (Amazon Route 53 periodically checks the health of the endpoint that is specified in a health check; it doesn't perform the health check when the DNS query arrives.)
Based on the status of the health checks, Amazon Route 53 determines which resource record sets are healthy. Unhealthy resource record sets are immediately removed from consideration. In addition, if all of the resource record sets that are referenced by an alias resource record set are unhealthy, that alias resource record set also is immediately removed from consideration.
Based on the configuration of the alias resource record sets (weighted alias or latency alias, for example) and the configuration of the resource record sets that they reference, Amazon Route 53 chooses a resource record set from the healthy resource record sets, and responds to the query.
Note the following:
You cannot set EvaluateTargetHealth to true when the alias target is a CloudFront distribution.
If the AWS resource that you specify in AliasTarget is a resource record set or a group of resource record sets (for example, a group of weighted resource record sets), but it is not another alias resource record set, we recommend that you associate a health check with all of the resource record sets in the alias target.For more information, see What Happens When You Omit Health Checks? in the Amazon Route 53 Developer Guide.
If you specify an Elastic Beanstalk environment in HostedZoneId and DNSName, and if the environment contains an ELB load balancer, Elastic Load Balancing routes queries only to the healthy Amazon EC2 instances that are registered with the load balancer. (An environment automatically contains an ELB load balancer if it includes more than one Amazon EC2 instance.) If you set EvaluateTargetHealth to true and either no Amazon EC2 instances are healthy or the load balancer itself is unhealthy, Amazon Route 53 routes queries to other available resources that are healthy, if any. If the environment contains a single Amazon EC2 instance, there are no special requirements.
If you specify an ELB load balancer in AliasTarget ``, Elastic Load Balancing routes queries only to the healthy Amazon EC2 instances that are registered with the load balancer. If no Amazon EC2 instances are healthy or if the load balancer itself is unhealthy, and if ``EvaluateTargetHealth is true for the corresponding alias resource record set, Amazon Route 53 routes queries to other resources. When you create a load balancer, you configure settings for Elastic Load Balancing health checks; they're not Amazon Route 53 health checks, but they perform a similar function. Do not create Amazon Route 53 health checks for the Amazon EC2 instances that you register with an ELB load balancer. For more information, see How Health Checks Work in More Complex Amazon Route 53 Configurations in the Amazon Route 53 Developers Guide.
We recommend that you set EvaluateTargetHealth to true only when you have enough idle capacity to handle the failure of one or more endpoints.
For more information and examples, see Amazon Route 53 Health Checks and DNS Failover in the Amazon Route 53 Developer Guide.
HealthCheckId (string) --
If you want Amazon Route 53 to return this resource record set in response to a DNS query only when a health check is passing, include the HealthCheckId element and specify the ID of the applicable health check.
Amazon Route 53 determines whether a resource record set is healthy based on one of the following:
By periodically sending a request to the endpoint that is specified in the health check
By aggregating the status of a specified group of health checks (calculated health checks)
By determining the current state of a CloudWatch alarm (CloudWatch metric health checks)
For information about how Amazon Route 53 determines whether a health check is healthy, see CreateHealthCheck.
The HealthCheckId element is only useful when Amazon Route 53 is choosing between two or more resource record sets to respond to a DNS query, and you want Amazon Route 53 to base the choice in part on the status of a health check. Configuring health checks only makes sense in the following configurations:
You're checking the health of the resource record sets in a weighted, latency, geolocation, or failover resource record set, and you specify health check IDs for all of the resource record sets. If the health check for one resource record set specifies an endpoint that is not healthy, Amazon Route 53 stops responding to queries using the value for that resource record set.
You set EvaluateTargetHealth to true for the resource record sets in an alias, weighted alias, latency alias, geolocation alias, or failover alias resource record set, and you specify health check IDs for all of the resource record sets that are referenced by the alias resource record sets.
For geolocation resource record sets, if an endpoint is unhealthy, Amazon Route 53 looks for a resource record set for the larger, associated geographic region. For example, suppose you have resource record sets for a state in the United States, for the United States, for North America, and for all locations. If the endpoint for the state resource record set is unhealthy, Amazon Route 53 checks the resource record sets for the United States, for North America, and for all locations (a resource record set for which the value of CountryCode is *), in that order, until it finds a resource record set for which the endpoint is healthy.
If your health checks specify the endpoint only by domain name, we recommend that you create a separate health check for each endpoint. For example, create a health check for each HTTP server that is serving content for www.example.com. For the value of FullyQualifiedDomainName, specify the domain name of the server (such as us-east-1-www.example.com), not the name of the resource record sets (example.com).
For more information, see the following topics in the Amazon Route 53 Developer Guide:
TrafficPolicyInstanceId (string) --
When you create a traffic policy instance, Amazon Route 53 automatically creates a resource record set. TrafficPolicyInstanceId is the ID of the traffic policy instance that Amazon Route 53 created this resource record set for.
IsTruncated (boolean) --
A flag that indicates whether more resource record sets remain to be listed. If your results were truncated, you can make a follow-up pagination request by using the NextRecordName element.
NextRecordName (string) --
If the results were truncated, the name of the next record in the list.
This element is present only if IsTruncated is true.
NextRecordType (string) --
If the results were truncated, the type of the next record in the list.
This element is present only if IsTruncated is true.
NextRecordIdentifier (string) --
Weighted, latency, geolocation, and failover resource record sets only: If results were truncated for a given DNS name and type, the value of SetIdentifier for the next resource record set that has the current DNS name and type.
MaxItems (string) --
The maximum number of records you requested.