software.amazon.awscdk.services.autoscaling

Interface CfnScalingPolicyProps

All Superinterfaces:

software.amazon.jsii.JsiiSerializable

All Known Implementing Classes:

CfnScalingPolicyProps.Jsii$Proxy

@Generated(value="jsii-pacmak/1.67.0 (build 2c027f5)",
           date="2022-09-19T20:26:36.791Z")
 @Stability(value=Stable)
public interface CfnScalingPolicyProps
extends software.amazon.jsii.JsiiSerializable

Properties for defining a `CfnScalingPolicy`.

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.*;
 CfnScalingPolicyProps cfnScalingPolicyProps = CfnScalingPolicyProps.builder()
         .autoScalingGroupName("autoScalingGroupName")
         // the properties below are optional
         .adjustmentType("adjustmentType")
         .cooldown("cooldown")
         .estimatedInstanceWarmup(123)
         .metricAggregationType("metricAggregationType")
         .minAdjustmentMagnitude(123)
         .policyType("policyType")
         .predictiveScalingConfiguration(PredictiveScalingConfigurationProperty.builder()
                 .metricSpecifications(List.of(PredictiveScalingMetricSpecificationProperty.builder()
                         .targetValue(123)
                         // the properties below are optional
                         .customizedCapacityMetricSpecification(PredictiveScalingCustomizedCapacityMetricProperty.builder()
                                 .metricDataQueries(List.of(MetricDataQueryProperty.builder()
                                         .id("id")
                                         // the properties below are optional
                                         .expression("expression")
                                         .label("label")
                                         .metricStat(MetricStatProperty.builder()
                                                 .metric(MetricProperty.builder()
                                                         .metricName("metricName")
                                                         .namespace("namespace")
                                                         // the properties below are optional
                                                         .dimensions(List.of(MetricDimensionProperty.builder()
                                                                 .name("name")
                                                                 .value("value")
                                                                 .build()))
                                                         .build())
                                                 .stat("stat")
                                                 // the properties below are optional
                                                 .unit("unit")
                                                 .build())
                                         .returnData(false)
                                         .build()))
                                 .build())
                         .customizedLoadMetricSpecification(PredictiveScalingCustomizedLoadMetricProperty.builder()
                                 .metricDataQueries(List.of(MetricDataQueryProperty.builder()
                                         .id("id")
                                         // the properties below are optional
                                         .expression("expression")
                                         .label("label")
                                         .metricStat(MetricStatProperty.builder()
                                                 .metric(MetricProperty.builder()
                                                         .metricName("metricName")
                                                         .namespace("namespace")
                                                         // the properties below are optional
                                                         .dimensions(List.of(MetricDimensionProperty.builder()
                                                                 .name("name")
                                                                 .value("value")
                                                                 .build()))
                                                         .build())
                                                 .stat("stat")
                                                 // the properties below are optional
                                                 .unit("unit")
                                                 .build())
                                         .returnData(false)
                                         .build()))
                                 .build())
                         .customizedScalingMetricSpecification(PredictiveScalingCustomizedScalingMetricProperty.builder()
                                 .metricDataQueries(List.of(MetricDataQueryProperty.builder()
                                         .id("id")
                                         // the properties below are optional
                                         .expression("expression")
                                         .label("label")
                                         .metricStat(MetricStatProperty.builder()
                                                 .metric(MetricProperty.builder()
                                                         .metricName("metricName")
                                                         .namespace("namespace")
                                                         // the properties below are optional
                                                         .dimensions(List.of(MetricDimensionProperty.builder()
                                                                 .name("name")
                                                                 .value("value")
                                                                 .build()))
                                                         .build())
                                                 .stat("stat")
                                                 // the properties below are optional
                                                 .unit("unit")
                                                 .build())
                                         .returnData(false)
                                         .build()))
                                 .build())
                         .predefinedLoadMetricSpecification(PredictiveScalingPredefinedLoadMetricProperty.builder()
                                 .predefinedMetricType("predefinedMetricType")
                                 // the properties below are optional
                                 .resourceLabel("resourceLabel")
                                 .build())
                         .predefinedMetricPairSpecification(PredictiveScalingPredefinedMetricPairProperty.builder()
                                 .predefinedMetricType("predefinedMetricType")
                                 // the properties below are optional
                                 .resourceLabel("resourceLabel")
                                 .build())
                         .predefinedScalingMetricSpecification(PredictiveScalingPredefinedScalingMetricProperty.builder()
                                 .predefinedMetricType("predefinedMetricType")
                                 // the properties below are optional
                                 .resourceLabel("resourceLabel")
                                 .build())
                         .build()))
                 // the properties below are optional
                 .maxCapacityBreachBehavior("maxCapacityBreachBehavior")
                 .maxCapacityBuffer(123)
                 .mode("mode")
                 .schedulingBufferTime(123)
                 .build())
         .scalingAdjustment(123)
         .stepAdjustments(List.of(StepAdjustmentProperty.builder()
                 .scalingAdjustment(123)
                 // the properties below are optional
                 .metricIntervalLowerBound(123)
                 .metricIntervalUpperBound(123)
                 .build()))
         .targetTrackingConfiguration(TargetTrackingConfigurationProperty.builder()
                 .targetValue(123)
                 // the properties below are optional
                 .customizedMetricSpecification(CustomizedMetricSpecificationProperty.builder()
                         .metricName("metricName")
                         .namespace("namespace")
                         .statistic("statistic")
                         // the properties below are optional
                         .dimensions(List.of(MetricDimensionProperty.builder()
                                 .name("name")
                                 .value("value")
                                 .build()))
                         .unit("unit")
                         .build())
                 .disableScaleIn(false)
                 .predefinedMetricSpecification(PredefinedMetricSpecificationProperty.builder()
                         .predefinedMetricType("predefinedMetricType")
                         // the properties below are optional
                         .resourceLabel("resourceLabel")
                         .build())
                 .build())
         .build();
 

Nested Class Summary

Nested Classes

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

Method Summary

Modifier and Type	Method and Description
static CfnScalingPolicyProps.Builder	builder()
default String	getAdjustmentType() Specifies how the scaling adjustment is interpreted (for example, an absolute number or a percentage).
String	getAutoScalingGroupName() The name of the Auto Scaling group.
default String	getCooldown() A cooldown period, in seconds, that applies to a specific simple scaling policy.
default Number	getEstimatedInstanceWarmup() *Not needed if the default instance warmup is defined for the group.*.
default String	getMetricAggregationType() The aggregation type for the CloudWatch metrics.
default Number	getMinAdjustmentMagnitude() The minimum value to scale by when the adjustment type is `PercentChangeInCapacity` .
default String	getPolicyType() One of the following policy types:.
default Object	getPredictiveScalingConfiguration() A predictive scaling policy.
default Number	getScalingAdjustment() The amount by which to scale, based on the specified adjustment type.
default Object	getStepAdjustments() A set of adjustments that enable you to scale based on the size of the alarm breach.
default Object	getTargetTrackingConfiguration() A target tracking scaling policy.

Methods inherited from interface software.amazon.jsii.JsiiSerializable

$jsii$toJson

Method Detail

getAutoScalingGroupName

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

The name of the Auto Scaling group.

getAdjustmentType

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

Specifies how the scaling adjustment is interpreted (for example, an absolute number or a percentage).

The valid values are ChangeInCapacity , ExactCapacity , and PercentChangeInCapacity .

Required if the policy type is StepScaling or SimpleScaling . For more information, see Scaling adjustment types in the Amazon EC2 Auto Scaling User Guide .

getCooldown

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

A cooldown period, in seconds, that applies to a specific simple scaling policy.

When a cooldown period is specified here, it overrides the default cooldown.

Valid only if the policy type is SimpleScaling . For more information, see Scaling cooldowns for Amazon EC2 Auto Scaling in the Amazon EC2 Auto Scaling User Guide .

Default: None

getEstimatedInstanceWarmup

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

*Not needed if the default instance warmup is defined for the group.*.

The estimated time, in seconds, until a newly launched instance can contribute to the CloudWatch metrics. This warm-up period applies to instances launched due to a specific target tracking or step scaling policy. When a warm-up period is specified here, it overrides the default instance warmup.

Valid only if the policy type is TargetTrackingScaling or StepScaling .

The default is to use the value for the default instance warmup defined for the group. If default instance warmup is null, then EstimatedInstanceWarmup falls back to the value of default cooldown.

getMetricAggregationType

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

The aggregation type for the CloudWatch metrics.

The valid values are Minimum , Maximum , and Average . If the aggregation type is null, the value is treated as Average .

Valid only if the policy type is StepScaling .

getMinAdjustmentMagnitude

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

The minimum value to scale by when the adjustment type is `PercentChangeInCapacity` .

For example, suppose that you create a step scaling policy to scale out an Auto Scaling group by 25 percent and you specify a MinAdjustmentMagnitude of 2. If the group has 4 instances and the scaling policy is performed, 25 percent of 4 is 1. However, because you specified a MinAdjustmentMagnitude of 2, Amazon EC2 Auto Scaling scales out the group by 2 instances.

Valid only if the policy type is StepScaling or SimpleScaling . For more information, see Scaling adjustment types in the Amazon EC2 Auto Scaling User Guide .

Some Auto Scaling groups use instance weights. In this case, set the MinAdjustmentMagnitude to a value that is at least as large as your largest instance weight.

getPolicyType

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

One of the following policy types:.

• TargetTrackingScaling
• StepScaling
• SimpleScaling (default)
• PredictiveScaling

getPredictiveScalingConfiguration

@Stability(value=Stable)
 @Nullable
default Object getPredictiveScalingConfiguration()

A predictive scaling policy. Provides support for predefined and custom metrics.

Predefined metrics include CPU utilization, network in/out, and the Application Load Balancer request count.

Required if the policy type is PredictiveScaling .

getScalingAdjustment

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

The amount by which to scale, based on the specified adjustment type.

A positive value adds to the current capacity while a negative number removes from the current capacity. For exact capacity, you must specify a positive value.

Required if the policy type is SimpleScaling . (Not used with any other policy type.)

getStepAdjustments

@Stability(value=Stable)
 @Nullable
default Object getStepAdjustments()

A set of adjustments that enable you to scale based on the size of the alarm breach.

Required if the policy type is StepScaling . (Not used with any other policy type.)

getTargetTrackingConfiguration

@Stability(value=Stable)
 @Nullable
default Object getTargetTrackingConfiguration()

A target tracking scaling policy. Provides support for predefined or custom metrics.

The following predefined metrics are available:

• ASGAverageCPUUtilization
• ASGAverageNetworkIn
• ASGAverageNetworkOut
• ALBRequestCountPerTarget

If you specify ALBRequestCountPerTarget for the metric, you must specify the ResourceLabel property with the PredefinedMetricSpecification .

Required if the policy type is TargetTrackingScaling .

builder

@Stability(value=Stable)
static CfnScalingPolicyProps.Builder builder()

Returns:

a CfnScalingPolicyProps.Builder of CfnScalingPolicyProps