BasicTargetTrackingScalingPolicyProps

class aws_cdk.aws_autoscaling.BasicTargetTrackingScalingPolicyProps(*, cooldown=None, disable_scale_in=None, estimated_instance_warmup=None, target_value, custom_metric=None, predefined_metric=None, resource_label=None)

Bases: aws_cdk.aws_autoscaling.BaseTargetTrackingProps

__init__(*, cooldown=None, disable_scale_in=None, estimated_instance_warmup=None, target_value, custom_metric=None, predefined_metric=None, resource_label=None)

Properties for a Target Tracking policy that include the metric but exclude the target.

Parameters
  • cooldown (Optional[Duration]) – Period after a scaling completes before another scaling activity can start. Default: - The default cooldown configured on the AutoScalingGroup.

  • disable_scale_in (Optional[bool]) – Indicates whether scale in by the target tracking policy is disabled. If the value is true, scale in is disabled and the target tracking policy won’t remove capacity from the autoscaling group. Otherwise, scale in is enabled and the target tracking policy can remove capacity from the group. Default: false

  • estimated_instance_warmup (Optional[Duration]) – Estimated time until a newly launched instance can send metrics to CloudWatch. Default: - Same as the cooldown.

  • target_value (Union[int, float]) – The target value for the metric.

  • custom_metric (Optional[IMetric]) – A custom metric for application autoscaling. The metric must track utilization. Scaling out will happen if the metric is higher than the target value, scaling in will happen in the metric is lower than the target value. Exactly one of customMetric or predefinedMetric must be specified. Default: - No custom metric.

  • predefined_metric (Optional[PredefinedMetric]) – A predefined metric for application autoscaling. The metric must track utilization. Scaling out will happen if the metric is higher than the target value, scaling in will happen in the metric is lower than the target value. Exactly one of customMetric or predefinedMetric must be specified. Default: - No predefined metric.

  • resource_label (Optional[str]) – The resource label associated with the predefined metric. Should be supplied if the predefined metric is ALBRequestCountPerTarget, and the format should be: app///targetgroup// Default: - No resource label.

Attributes

cooldown

Period after a scaling completes before another scaling activity can start.

default :default: - The default cooldown configured on the AutoScalingGroup.

Return type

Optional[Duration]

custom_metric

A custom metric for application autoscaling.

The metric must track utilization. Scaling out will happen if the metric is higher than the target value, scaling in will happen in the metric is lower than the target value.

Exactly one of customMetric or predefinedMetric must be specified.

default :default: - No custom metric.

Return type

Optional[IMetric]

disable_scale_in

Indicates whether scale in by the target tracking policy is disabled.

If the value is true, scale in is disabled and the target tracking policy won’t remove capacity from the autoscaling group. Otherwise, scale in is enabled and the target tracking policy can remove capacity from the group.

default :default: false

Return type

Optional[bool]

estimated_instance_warmup

Estimated time until a newly launched instance can send metrics to CloudWatch.

default :default: - Same as the cooldown.

Return type

Optional[Duration]

predefined_metric

A predefined metric for application autoscaling.

The metric must track utilization. Scaling out will happen if the metric is higher than the target value, scaling in will happen in the metric is lower than the target value.

Exactly one of customMetric or predefinedMetric must be specified.

default :default: - No predefined metric.

Return type

Optional[PredefinedMetric]

resource_label

The resource label associated with the predefined metric.

Should be supplied if the predefined metric is ALBRequestCountPerTarget, and the format should be:

app///targetgroup//

default :default: - No resource label.

Return type

Optional[str]

target_value

The target value for the metric.

Return type

Union[int, float]