software.amazon.awscdk.services.autoscaling

Interface CfnAutoScalingGroup.LifecycleHookSpecificationProperty

All Superinterfaces:

software.amazon.jsii.JsiiSerializable

All Known Implementing Classes:

CfnAutoScalingGroup.LifecycleHookSpecificationProperty.Jsii$Proxy

Enclosing class:

CfnAutoScalingGroup

@Stability(value=Stable)
public static interface CfnAutoScalingGroup.LifecycleHookSpecificationProperty
extends software.amazon.jsii.JsiiSerializable

`LifecycleHookSpecification` specifies a lifecycle hook for the `LifecycleHookSpecificationList` property of the [AWS::AutoScaling::AutoScalingGroup](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-as-group.html) resource. A lifecycle hook specifies actions to perform when Amazon EC2 Auto Scaling launches or terminates instances.

For more information, see Amazon EC2 Auto Scaling lifecycle hooks in the Amazon EC2 Auto Scaling User Guide . You can find a sample template snippet in the Examples section of the AWS::AutoScaling::LifecycleHook resource.

Example:

 // The code below shows an example of how to instantiate this type.
 // The values are placeholders you should change.
 import software.amazon.awscdk.services.autoscaling.*;
 LifecycleHookSpecificationProperty lifecycleHookSpecificationProperty = LifecycleHookSpecificationProperty.builder()
         .lifecycleHookName("lifecycleHookName")
         .lifecycleTransition("lifecycleTransition")
         // the properties below are optional
         .defaultResult("defaultResult")
         .heartbeatTimeout(123)
         .notificationMetadata("notificationMetadata")
         .notificationTargetArn("notificationTargetArn")
         .roleArn("roleArn")
         .build();
 

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	CfnAutoScalingGroup.LifecycleHookSpecificationProperty.Builder A builder for CfnAutoScalingGroup.LifecycleHookSpecificationProperty
static class	CfnAutoScalingGroup.LifecycleHookSpecificationProperty.Jsii$Proxy An implementation for CfnAutoScalingGroup.LifecycleHookSpecificationProperty

Method Summary

Modifier and Type	Method and Description
static CfnAutoScalingGroup.LifecycleHookSpecificationProperty.Builder	builder()
default String	getDefaultResult() The action the Auto Scaling group takes when the lifecycle hook timeout elapses or if an unexpected failure occurs.
default Number	getHeartbeatTimeout() The maximum time, in seconds, that can elapse before the lifecycle hook times out.
String	getLifecycleHookName() The name of the lifecycle hook.
String	getLifecycleTransition() The lifecycle transition.
default String	getNotificationMetadata() Additional information that you want to include any time Amazon EC2 Auto Scaling sends a message to the notification target.
default String	getNotificationTargetArn() The Amazon Resource Name (ARN) of the notification target that Amazon EC2 Auto Scaling sends notifications to when an instance is in a wait state for the lifecycle hook.
default String	getRoleArn() The ARN of the IAM role that allows the Auto Scaling group to publish to the specified notification target.

Methods inherited from interface software.amazon.jsii.JsiiSerializable

$jsii$toJson

Method Detail

getLifecycleHookName

@Stability(value=Stable)
 @NotNull
String getLifecycleHookName()

The name of the lifecycle hook.

getLifecycleTransition

@Stability(value=Stable)
 @NotNull
String getLifecycleTransition()

The lifecycle transition. For Auto Scaling groups, there are two major lifecycle transitions.

• To create a lifecycle hook for scale-out events, specify autoscaling:EC2_INSTANCE_LAUNCHING .
• To create a lifecycle hook for scale-in events, specify autoscaling:EC2_INSTANCE_TERMINATING .

getDefaultResult

@Stability(value=Stable)
 @Nullable
default String getDefaultResult()

The action the Auto Scaling group takes when the lifecycle hook timeout elapses or if an unexpected failure occurs.

The default value is ABANDON .

Valid values: CONTINUE | ABANDON

getHeartbeatTimeout

@Stability(value=Stable)
 @Nullable
default Number getHeartbeatTimeout()

The maximum time, in seconds, that can elapse before the lifecycle hook times out.

The range is from 30 to 7200 seconds. The default value is 3600 seconds (1 hour).

getNotificationMetadata

@Stability(value=Stable)
 @Nullable
default String getNotificationMetadata()

Additional information that you want to include any time Amazon EC2 Auto Scaling sends a message to the notification target.

getNotificationTargetArn

@Stability(value=Stable)
 @Nullable
default String getNotificationTargetArn()

The Amazon Resource Name (ARN) of the notification target that Amazon EC2 Auto Scaling sends notifications to when an instance is in a wait state for the lifecycle hook.

You can specify an Amazon SNS topic or an Amazon SQS queue.

getRoleArn

@Stability(value=Stable)
 @Nullable
default String getRoleArn()

The ARN of the IAM role that allows the Auto Scaling group to publish to the specified notification target.

For information about creating this role, see Configure a notification target for a lifecycle hook in the Amazon EC2 Auto Scaling User Guide .

Valid only if the notification target is an Amazon SNS topic or an Amazon SQS queue.

builder

@Stability(value=Stable)
static CfnAutoScalingGroup.LifecycleHookSpecificationProperty.Builder builder()

Returns:

a CfnAutoScalingGroup.LifecycleHookSpecificationProperty.Builder of CfnAutoScalingGroup.LifecycleHookSpecificationProperty