Package software.amazon.awscdk.services.autoscaling

Interface CfnWarmPoolProps

All Superinterfaces:

software.amazon.jsii.JsiiSerializable

All Known Implementing Classes:

CfnWarmPoolProps.Jsii$Proxy

@Generated(value="jsii-pacmak/1.104.0 (build e79254c)",
           date="2025-01-10T21:56:47.113Z")
@Stability(Stable)
public interface CfnWarmPoolProps
extends software.amazon.jsii.JsiiSerializable

Properties for defining a CfnWarmPool.

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.*;
 CfnWarmPoolProps cfnWarmPoolProps = CfnWarmPoolProps.builder()
         .autoScalingGroupName("autoScalingGroupName")
         // the properties below are optional
         .instanceReusePolicy(InstanceReusePolicyProperty.builder()
                 .reuseOnScaleIn(false)
                 .build())
         .maxGroupPreparedCapacity(123)
         .minSize(123)
         .poolState("poolState")
         .build();
 

See Also:

• http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-autoscaling-warmpool.html

Nested Class Summary

Nested Classes

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

Method Summary

Modifier and Type	Method	Description
static CfnWarmPoolProps.Builder	builder()
String	getAutoScalingGroupName()	The name of the Auto Scaling group.
default Object	getInstanceReusePolicy()	Indicates whether instances in the Auto Scaling group can be returned to the warm pool on scale in.
default Number	getMaxGroupPreparedCapacity()	Specifies the maximum number of instances that are allowed to be in the warm pool or in any state except Terminated for the Auto Scaling group.
default Number	getMinSize()	Specifies the minimum number of instances to maintain in the warm pool.
default String	getPoolState()	Sets the instance state to transition to after the lifecycle actions are complete.

Methods inherited from interface software.amazon.jsii.JsiiSerializable

$jsii$toJson

Method Details

getAutoScalingGroupName

@Stability(Stable)
@NotNull
String getAutoScalingGroupName()

The name of the Auto Scaling group.

See Also:

• http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-autoscaling-warmpool.html#cfn-autoscaling-warmpool-autoscalinggroupname

getInstanceReusePolicy

@Stability(Stable)
@Nullable
default Object getInstanceReusePolicy()

Indicates whether instances in the Auto Scaling group can be returned to the warm pool on scale in.

The default is to terminate instances in the Auto Scaling group when the group scales in.

See Also:

• http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-autoscaling-warmpool.html#cfn-autoscaling-warmpool-instancereusepolicy

getMaxGroupPreparedCapacity

@Stability(Stable)
@Nullable
default Number getMaxGroupPreparedCapacity()

Specifies the maximum number of instances that are allowed to be in the warm pool or in any state except Terminated for the Auto Scaling group.

This is an optional property. Specify it only if you do not want the warm pool size to be determined by the difference between the group's maximum capacity and its desired capacity.

If a value for MaxGroupPreparedCapacity is not specified, Amazon EC2 Auto Scaling launches and maintains the difference between the group's maximum capacity and its desired capacity. If you specify a value for MaxGroupPreparedCapacity , Amazon EC2 Auto Scaling uses the difference between the MaxGroupPreparedCapacity and the desired capacity instead.

The size of the warm pool is dynamic. Only when MaxGroupPreparedCapacity and MinSize are set to the same value does the warm pool have an absolute size.

If the desired capacity of the Auto Scaling group is higher than the MaxGroupPreparedCapacity , the capacity of the warm pool is 0, unless you specify a value for MinSize . To remove a value that you previously set, include the property but specify -1 for the value.

See Also:

• http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-autoscaling-warmpool.html#cfn-autoscaling-warmpool-maxgrouppreparedcapacity

getMinSize

@Stability(Stable)
@Nullable
default Number getMinSize()

Specifies the minimum number of instances to maintain in the warm pool.

This helps you to ensure that there is always a certain number of warmed instances available to handle traffic spikes. Defaults to 0 if not specified.

See Also:

• http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-autoscaling-warmpool.html#cfn-autoscaling-warmpool-minsize

getPoolState

@Stability(Stable)
@Nullable
default String getPoolState()

Sets the instance state to transition to after the lifecycle actions are complete.

Default is Stopped .

See Also:

• http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-autoscaling-warmpool.html#cfn-autoscaling-warmpool-poolstate

builder

@Stability(Stable)
static CfnWarmPoolProps.Builder builder()

Returns:

a CfnWarmPoolProps.Builder of CfnWarmPoolProps