Instance that uses Route 53 Alias record type.

Currently, the only resource types supported are Elastic Load
Balancers.

AliasTargetInstance

dnsName

The Cloudmap service this resource is registered to.

service

customAttributes

instanceId

Instance that is accessible using a domain name (CNAME).

CnameInstance

If the service configuration includes a CNAME record, the domain name that you want Route 53 to return in response to DNS queries, for example, example.com. This value is required if the service specified by ServiceId includes settings for an CNAME record.

instanceCname

createService

HttpNamespace

name

description

Instance that is accessible using an IP address.

IpInstance

If the service that you specify contains a template for an A record, the IPv4 address that you want AWS Cloud Map to use for the value of the A record.

ipv4

If the service that you specify contains a template for an AAAA record, the IPv6 address that you want AWS Cloud Map to use for the value of the AAAA record.

ipv6

The port on the endpoint that you want AWS Cloud Map to perform health checks on.

This value is also used for
the port value in an SRV record if the service that you specify includes an SRV record. You can also specify a
default port that is applied to all instances in the Service configuration.

port

Instance accessible using values other than an IP address or a domain name (CNAME).

Specify the other values in Custom attributes.

NonIpInstance

Define a Service Discovery HTTP Namespace.

PrivateDnsNamespace

The Amazon VPC that you want to associate the namespace with.

PublicDnsNamespace

Registers a resource that is accessible using a CNAME.

registerCnameInstance

Registers a resource that is accessible using an IP address.

registerIpInstance

Registers an ELB as a new instance with unique name instanceId in this service.

registerLoadBalancer

Registers a resource that is accessible using values other than an IP address or a domain name (CNAME).

registerNonIpInstance

Service

The namespace that you want to use for DNS configuration.

namespace

Controls how instances within this service can be discovered.

discoveryType

The DNS type of the record that you want AWS Cloud Map to create.

Supported record types
include A, AAAA, A and AAAA (A_AAAA), CNAME, and SRV.

dnsRecordType

The amount of time, in seconds, that you want DNS resolvers to cache the settings for this record.

dnsTtl

Whether or not this service will have an Elastic LoadBalancer registered to it as an AliasTargetInstance.

Setting this to `true` correctly configures the `routingPolicy`
and performs some additional validation.

loadBalancer

The routing policy that you want to apply to all DNS records that AWS Cloud Map creates when you register an instance and specify this service.

routingPolicy

Structure containing failure threshold for a custom health checker.

Only one of healthCheckConfig or healthCheckCustomConfig can be specified.
See: https://docs.aws.amazon.com/cloud-map/latest/api/API_HealthCheckCustomConfig.html

customHealthCheck

Settings for an optional health check.

If you specify health check settings, AWS Cloud Map associates the health
check with the records that you specify in DnsConfig. Only one of healthCheckConfig or healthCheckCustomConfig can
be specified. Not valid for PrivateDnsNamespaces. If you use healthCheck, you can only register IP instances to
this service.

healthCheck

Creates an HTTP namespace.

Service instances registered using an HTTP namespace can be discovered using a `DiscoverInstances` request but can't be discovered using DNS.

For the current quota on the number of namespaces that you can create using the same AWS account , see [AWS Cloud Map quotas](https://docs.aws.amazon.com/cloud-map/latest/dg/cloud-map-limits.html) in the *AWS Cloud Map Developer Guide* .

CfnHttpNamespace

The name that you want to assign to this namespace.

The tags for the namespace.

Each tag consists of a key and an optional value, both of which you define. Tag keys can have a maximum character length of 128 characters, and tag values can have a maximum length of 256 characters.

CfnInstance

A string map that contains the following information for the service that you specify in `ServiceId` :.

- The attributes that apply to the records that are defined in the service.
- For each attribute, the applicable value.

Supported attribute keys include the following:

- **AWS_ALIAS_DNS_NAME** - If you want AWS Cloud Map to create a Route 53 alias record that routes traffic to an Elastic Load Balancing load balancer, specify the DNS name that is associated with the load balancer. For information about how to get the DNS name, see [AliasTarget->DNSName](https://docs.aws.amazon.com/Route53/latest/APIReference/API_AliasTarget.html#Route53-Type-AliasTarget-DNSName) in the *Route 53 API Reference* .

Note the following:

- The configuration for the service that is specified by `ServiceId` must include settings for an `A` record, an `AAAA` record, or both.
- In the service that is specified by `ServiceId` , the value of `RoutingPolicy` must be `WEIGHTED` .
- If the service that is specified by `ServiceId` includes `HealthCheckConfig` settings, AWS Cloud Map will create the health check, but it won't associate the health check with the alias record.
- Auto naming currently doesn't support creating alias records that route traffic to AWS resources other than ELB load balancers.
- If you specify a value for `AWS_ALIAS_DNS_NAME` , don't specify values for any of the `AWS_INSTANCE` attributes.
- **AWS_EC2_INSTANCE_ID** - *HTTP namespaces only.* The Amazon EC2 instance ID for the instance. The `AWS_INSTANCE_IPV4` attribute contains the primary private IPv4 address. When creating resources with a type of [AWS::ServiceDiscovery::Instance](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-servicediscovery-instance.html) , if the `AWS_EC2_INSTANCE_ID` attribute is specified, the only other attribute that can be specified is `AWS_INIT_HEALTH_STATUS` . After the resource has been created, the `AWS_INSTANCE_IPV4` attribute contains the primary private IPv4 address.
- **AWS_INIT_HEALTH_STATUS** - If the service configuration includes `HealthCheckCustomConfig` , when creating resources with a type of [AWS::ServiceDiscovery::Instance](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-servicediscovery-instance.html) you can optionally use `AWS_INIT_HEALTH_STATUS` to specify the initial status of the custom health check, `HEALTHY` or `UNHEALTHY` . If you don't specify a value for `AWS_INIT_HEALTH_STATUS` , the initial status is `HEALTHY` . This attribute can only be used when creating resources and will not be seen on existing resources.
- **AWS_INSTANCE_CNAME** - If the service configuration includes a `CNAME` record, the domain name that you want Route 53 to return in response to DNS queries, for example, `example.com` .

This value is required if the service specified by `ServiceId` includes settings for an `CNAME` record.
- **AWS_INSTANCE_IPV4** - If the service configuration includes an `A` record, the IPv4 address that you want Route 53 to return in response to DNS queries, for example, `192.0.2.44` .

This value is required if the service specified by `ServiceId` includes settings for an `A` record. If the service includes settings for an `SRV` record, you must specify a value for `AWS_INSTANCE_IPV4` , `AWS_INSTANCE_IPV6` , or both.
- **AWS_INSTANCE_IPV6** - If the service configuration includes an `AAAA` record, the IPv6 address that you want Route 53 to return in response to DNS queries, for example, `2001:0db8:85a3:0000:0000:abcd:0001:2345` .

This value is required if the service specified by `ServiceId` includes settings for an `AAAA` record. If the service includes settings for an `SRV` record, you must specify a value for `AWS_INSTANCE_IPV4` , `AWS_INSTANCE_IPV6` , or both.
- **AWS_INSTANCE_PORT** - If the service includes an `SRV` record, the value that you want Route 53 to return for the port.

If the service includes `HealthCheckConfig` , the port on the endpoint that you want Route 53 to send requests to.

This value is required if you specified settings for an `SRV` record or a Route 53 health check when you created the service.

instanceAttributes

The ID or Amazon Resource Name (ARN) of the service that you want to use for settings for the instance.

For services created in a shared namespace, specify the service ARN. For more information about shared namespaces, see [Cross-account AWS Cloud Map namespace sharing](https://docs.aws.amazon.com/cloud-map/latest/dg/sharing-namespaces.html) in the *AWS Cloud Map Developer Guide* .

serviceId

An identifier that you want to associate with the instance. Note the following:.

- If the service that's specified by `ServiceId` includes settings for an `SRV` record, the value of `InstanceId` is automatically included as part of the value for the `SRV` record. For more information, see [DnsRecord > Type](https://docs.aws.amazon.com/cloud-map/latest/api/API_DnsRecord.html#cloudmap-Type-DnsRecord-Type) .
- You can use this value to update an existing instance.
- To register a new instance, you must specify a value that's unique among instances that you register by using the same service.
- If you specify an existing `InstanceId` and `ServiceId` , AWS Cloud Map updates the existing DNS records, if any. If there's also an existing health check, AWS Cloud Map deletes the old health check and creates a new one.

> The health check isn't deleted immediately, so it will still appear for a while if you submit a `ListHealthChecks` request, for example.

> Do not include sensitive information in `InstanceId` if the namespace is discoverable by public DNS queries and any `Type` member of `DnsRecord` for the service contains `SRV` because the `InstanceId` is discoverable by public DNS queries.

Creates a private namespace based on DNS, which is visible only inside a specified Amazon VPC.

The namespace defines your service naming scheme. For example, if you name your namespace `example.com` and name your service `backend` , the resulting DNS name for the service is `backend.example.com` . Service instances that are registered using a private DNS namespace can be discovered using either a `DiscoverInstances` request or using DNS. For the current quota on the number of namespaces that you can create using the same AWS account , see [AWS Cloud Map quotas](https://docs.aws.amazon.com/cloud-map/latest/dg/cloud-map-limits.html) in the *AWS Cloud Map Developer Guide* .

CfnPrivateDnsNamespace

The name that you want to assign to this namespace.

When you create a private DNS namespace, AWS Cloud Map automatically creates an Amazon Route 53 private hosted zone that has the same name as the namespace.

The ID of the Amazon VPC that you want to associate the namespace with.

Properties for the private DNS namespace.

properties

Creates a public namespace based on DNS, which is visible on the internet.

The namespace defines your service naming scheme. For example, if you name your namespace `example.com` and name your service `backend` , the resulting DNS name for the service is `backend.example.com` . You can discover instances that were registered with a public DNS namespace by using either a `DiscoverInstances` request or using DNS. For the current quota on the number of namespaces that you can create using the same AWS account , see [AWS Cloud Map quotas](https://docs.aws.amazon.com/cloud-map/latest/dg/cloud-map-limits.html) in the *AWS Cloud Map Developer Guide* .

> The `CreatePublicDnsNamespace` API operation is not supported in the AWS GovCloud (US) Regions.

CfnPublicDnsNamespace

The name that you want to assign to this namespace.

> Do not include sensitive information in the name. The name is publicly available using DNS queries.

A complex type that contains information about the specified service.

CfnService

A complex type that contains information about the Route 53 DNS records that you want AWS Cloud Map to create when you register an instance.

> The record types of a service can only be changed by deleting the service and recreating it with a new `Dnsconfig` .

dnsConfig

*Public DNS and HTTP namespaces only.* A complex type that contains settings for an optional health check. If you specify settings for a health check, AWS Cloud Map associates the health check with the records that you specify in `DnsConfig` .

For information about the charges for health checks, see [Amazon Route 53 Pricing](https://docs.aws.amazon.com/route53/pricing/) .

healthCheckConfig

A complex type that contains information about an optional custom health check.

> If you specify a health check configuration, you can specify either `HealthCheckCustomConfig` or `HealthCheckConfig` but not both.

healthCheckCustomConfig

The ID or Amazon Resource Name (ARN) of the namespace that you want to use to create the service.

For namespaces shared with your AWS account, specify the namespace ARN. For more information about shared namespaces, see [Cross-account AWS Cloud Map namespace sharing](https://docs.aws.amazon.com/cloud-map/latest/dg/sharing-namespaces.html) in the *AWS Cloud Map Developer Guide* .

namespaceId

A complex type that contains information about attributes associated with a specific service.

serviceAttributes

The tags for the service.

Each tag consists of a key and an optional value, both of which you define. Tag keys can have a maximum character length of 128 characters, and tag values can have a maximum length of 256 characters.

If present, specifies that the service instances are only discoverable using the `DiscoverInstances` API operation.

No DNS records is registered for the service instances. The only valid value is `HTTP` .

AWS servicediscovery

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