- "documentation":"<p>A string map that contains the following information for the service that you specify in <code>ServiceId</code>:</p> <ul> <li> <p>The attributes that apply to the records that are defined in the service. </p> </li> <li> <p>For each attribute, the applicable value.</p> </li> </ul> <note> <p>Do not include sensitive information in the attributes if the namespace is discoverable by public DNS queries.</p> </note> <p>Supported attribute keys include the following:</p> <dl> <dt>AWS_ALIAS_DNS_NAME</dt> <dd> <p>If you want Cloud Map to create an Amazon Route 53 alias record that routes traffic to an Elastic Load Balancing load balancer, specify the DNS name that's associated with the load balancer. For information about how to get the DNS name, see \"DNSName\" in the topic <a href=\"https://docs.aws.amazon.com/Route53/latest/APIReference/API_AliasTarget.html\">AliasTarget</a> in the <i>Route 53 API Reference</i>.</p> <p>Note the following:</p> <ul> <li> <p>The configuration for the service that's specified by <code>ServiceId</code> must include settings for an <code>A</code> record, an <code>AAAA</code> record, or both.</p> </li> <li> <p>In the service that's specified by <code>ServiceId</code>, the value of <code>RoutingPolicy</code> must be <code>WEIGHTED</code>.</p> </li> <li> <p>If the service that's specified by <code>ServiceId</code> includes <code>HealthCheckConfig</code> settings, Cloud Map will create the Route 53 health check, but it doesn't associate the health check with the alias record.</p> </li> <li> <p>Cloud Map currently doesn't support creating alias records that route traffic to Amazon Web Services resources other than Elastic Load Balancing load balancers.</p> </li> <li> <p>If you specify a value for <code>AWS_ALIAS_DNS_NAME</code>, don't specify values for any of the <code>AWS_INSTANCE</code> attributes.</p> </li> </ul> </dd> <dt>AWS_EC2_INSTANCE_ID</dt> <dd> <p> <i>HTTP namespaces only.</i> The Amazon EC2 instance ID for the instance. If the <code>AWS_EC2_INSTANCE_ID</code> attribute is specified, then the only other attribute that can be specified is <code>AWS_INIT_HEALTH_STATUS</code>. When the <code>AWS_EC2_INSTANCE_ID</code> attribute is specified, then the <code>AWS_INSTANCE_IPV4</code> attribute will be filled out with the primary private IPv4 address.</p> </dd> <dt>AWS_INIT_HEALTH_STATUS</dt> <dd> <p>If the service configuration includes <code>HealthCheckCustomConfig</code>, you can optionally use <code>AWS_INIT_HEALTH_STATUS</code> to specify the initial status of the custom health check, <code>HEALTHY</code> or <code>UNHEALTHY</code>. If you don't specify a value for <code>AWS_INIT_HEALTH_STATUS</code>, the initial status is <code>HEALTHY</code>.</p> </dd> <dt>AWS_INSTANCE_CNAME</dt> <dd> <p>If the service configuration includes a <code>CNAME</code> record, the domain name that you want Route 53 to return in response to DNS queries (for example, <code>example.com</code>).</p> <p>This value is required if the service specified by <code>ServiceId</code> includes settings for an <code>CNAME</code> record.</p> </dd> <dt>AWS_INSTANCE_IPV4</dt> <dd> <p>If the service configuration includes an <code>A</code> record, the IPv4 address that you want Route 53 to return in response to DNS queries (for example, <code>192.0.2.44</code>).</p> <p>This value is required if the service specified by <code>ServiceId</code> includes settings for an <code>A</code> record. If the service includes settings for an <code>SRV</code> record, you must specify a value for <code>AWS_INSTANCE_IPV4</code>, <code>AWS_INSTANCE_IPV6</code>, or both.</p> </dd> <dt>AWS_INSTANCE_IPV6</dt> <dd> <p>If the service configuration includes an <code>AAAA</code> record, the IPv6 address that you want Route 53 to return in response to DNS queries (for example, <code>2001:0db8:85a3:0000:0000:abcd:0001:2345</code>).</p> <p>This value is required if the service specified by <code>ServiceId</code> includes settings for an <code>AAAA</code> record. If the service includes settings for an <code>SRV</code> record, you must specify a value for <code>AWS_INSTANCE_IPV4</code>, <code>AWS_INSTANCE_IPV6</code>, or both.</p> </dd> <dt>AWS_INSTANCE_PORT</dt> <dd> <p>If the service includes an <code>SRV</code> record, the value that you want Route 53 to return for the port.</p> <p>If the service includes <code>HealthCheckConfig</code>, the port on the endpoint that you want Route 53 to send requests to. </p> <p>This value is required if you specified settings for an <code>SRV</code> record or a Route 53 health check when you created the service.</p> </dd> <dt>Custom attributes</dt> <dd> <p>You can add up to 30 custom attributes. For each key-value pair, the maximum length of the attribute name is 255 characters, and the maximum length of the attribute value is 1,024 characters. The total size of all provided attributes (sum of all keys and values) must not exceed 5,000 characters.</p> </dd> </dl>"
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