software.amazon.awssdk.services.servicediscovery.model

Class Instance

java.lang.Object

software.amazon.awssdk.services.servicediscovery.model.Instance

All Implemented Interfaces:

Serializable, SdkPojo, ToCopyableBuilder<Instance.Builder,Instance>

@Generated(value="software.amazon.awssdk:codegen")
public final class Instance
extends Object
implements SdkPojo, Serializable, ToCopyableBuilder<Instance.Builder,Instance>

A complex type that contains information about an instance that Cloud Map creates when you submit a RegisterInstance request.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	Instance.Builder

Method Summary

Modifier and Type	Method and Description
Map<String,String>	attributes() A string map that contains the following information for the service that you specify in ServiceId:
static Instance.Builder	builder()
String	creatorRequestId() A unique string that identifies the request and that allows failed RegisterInstance requests to be retried without the risk of executing the operation twice.
boolean	equals(Object obj)
boolean	equalsBySdkFields(Object obj)
<T> Optional<T>	getValueForField(String fieldName, Class<T> clazz)
boolean	hasAttributes() For responses, this returns true if the service returned a value for the Attributes property.
int	hashCode()
String	id() An identifier that you want to associate with the instance.
List<SdkField<?>>	sdkFields()
static Class<? extends Instance.Builder>	serializableBuilderClass()
Instance.Builder	toBuilder()
String	toString() Returns a string representation of this object.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface software.amazon.awssdk.utils.builder.ToCopyableBuilder

copy

Method Detail

id

public final String id()

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.

• 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, Cloud Map updates the existing DNS records. If there's also an existing health check, 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.

Returns:

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.

• 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, Cloud Map updates the existing DNS records. If there's also an existing health check, 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.

creatorRequestId

public final String creatorRequestId()

A unique string that identifies the request and that allows failed RegisterInstance requests to be retried without the risk of executing the operation twice. You must use a unique CreatorRequestId string every time you submit a RegisterInstance request if you're registering additional instances for the same namespace and service. CreatorRequestId can be any unique string (for example, a date/time stamp).

Returns:

A unique string that identifies the request and that allows failed RegisterInstance requests to be retried without the risk of executing the operation twice. You must use a unique CreatorRequestId string every time you submit a RegisterInstance request if you're registering additional instances for the same namespace and service. CreatorRequestId can be any unique string (for example, a date/time stamp).

hasAttributes

public final boolean hasAttributes()

For responses, this returns true if the service returned a value for the Attributes property. This DOES NOT check that the value is non-empty (for which, you should check the isEmpty() method on the property). This is useful because the SDK will never return a null collection or map, but you may need to differentiate between the service returning nothing (or null) and the service returning an empty collection or map. For requests, this returns true if a value for the property was specified in the request builder, and false if a value was not specified.

attributes

public final Map<String,String> attributes()

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.

Do not include sensitive information in the attributes if the namespace is discoverable by public DNS queries.

Supported attribute keys include the following:

AWS_ALIAS_DNS_NAME

If you want Cloud Map to create a 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 AliasTarget->DNSName in the Route 53 API Reference.

Note the following:

• The configuration for the service that's specified by ServiceId must include settings for an A record, an AAAA record, or both.

• In the service that's specified by ServiceId, the value of RoutingPolicy must be WEIGHTED.

• If the service that's specified by ServiceId includes HealthCheckConfig settings, Cloud Map creates 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 Amazon Web Services 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.

AWS_INIT_HEALTH_STATUS

If the service configuration includes HealthCheckCustomConfig, 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.

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.

Attempts to modify the collection returned by this method will result in an UnsupportedOperationException.

This method will never return null. If you would like to know whether the service returned this field (so that you can differentiate between null and empty), you can use the hasAttributes() method.

Returns:

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.

Do not include sensitive information in the attributes if the namespace is discoverable by public DNS queries.

Supported attribute keys include the following:

AWS_ALIAS_DNS_NAME

If you want Cloud Map to create a 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 AliasTarget->DNSName in the Route 53 API Reference.

Note the following:

• The configuration for the service that's specified by ServiceId must include settings for an A record, an AAAA record, or both.

• In the service that's specified by ServiceId, the value of RoutingPolicy must be WEIGHTED.

• If the service that's specified by ServiceId includes HealthCheckConfig settings, Cloud Map creates 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 Amazon Web Services 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.

AWS_INIT_HEALTH_STATUS

If the service configuration includes HealthCheckCustomConfig, 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.

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.

toBuilder

public Instance.Builder toBuilder()

Specified by:

toBuilder in interface ToCopyableBuilder<Instance.Builder,Instance>

builder

public static Instance.Builder builder()

serializableBuilderClass

public static Class<? extends Instance.Builder> serializableBuilderClass()

hashCode

public final int hashCode()

Overrides:

hashCode in class Object

equals

public final boolean equals(Object obj)

Overrides:

equals in class Object

equalsBySdkFields

public final boolean equalsBySdkFields(Object obj)

Specified by:

equalsBySdkFields in interface SdkPojo

toString

public final String toString()

Returns a string representation of this object. This is useful for testing and debugging. Sensitive data will be redacted from this string using a placeholder value.

Overrides:

toString in class Object

getValueForField

public final <T> Optional<T> getValueForField(String fieldName,
                                              Class<T> clazz)

sdkFields

public final List<SdkField<?>> sdkFields()

Specified by:

sdkFields in interface SdkPojo