applicationautoscaling/types/types.go

// Code generated by smithy-go-codegen DO NOT EDIT.

package types

import (
	"time"
)

// Represents a CloudWatch alarm associated with a scaling policy.
type Alarm struct {

	// The Amazon Resource Name (ARN) of the alarm.
	//
	// This member is required.
	AlarmARN *string

	// The name of the alarm.
	//
	// This member is required.
	AlarmName *string
}

// Represents a CloudWatch metric of your choosing for a target tracking scaling
// policy to use with Application Auto Scaling. For information about the available
// metrics for a service, see AWS Services That Publish CloudWatch Metrics
// (https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/aws-services-cloudwatch-metrics.html)
// in the Amazon CloudWatch User Guide. To create your customized metric
// specification:
//
// * Add values for each required parameter from CloudWatch. You
// can use an existing metric, or a new metric that you create. To use your own
// metric, you must first publish the metric to CloudWatch. For more information,
// see Publish Custom Metrics
// (https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/publishingMetrics.html)
// in the Amazon CloudWatch User Guide.
//
// * Choose a metric that changes
// proportionally with capacity. The value of the metric should increase or
// decrease in inverse proportion to the number of capacity units. That is, the
// value of the metric should decrease when capacity increases, and increase when
// capacity decreases.
//
// For more information about CloudWatch, see Amazon
// CloudWatch Concepts
// (https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/cloudwatch_concepts.html).
type CustomizedMetricSpecification struct {

	// The name of the metric.
	//
	// This member is required.
	MetricName *string

	// The namespace of the metric.
	//
	// This member is required.
	Namespace *string

	// The statistic of the metric.
	//
	// This member is required.
	Statistic MetricStatistic

	// The dimensions of the metric. Conditional: If you published your metric with
	// dimensions, you must specify the same dimensions in your scaling policy.
	Dimensions []MetricDimension

	// The unit of the metric.
	Unit *string
}

// Describes the dimension names and values associated with a metric.
type MetricDimension struct {

	// The name of the dimension.
	//
	// This member is required.
	Name *string

	// The value of the dimension.
	//
	// This member is required.
	Value *string
}

// Represents a predefined metric for a target tracking scaling policy to use with
// Application Auto Scaling. Only the AWS services that you're using send metrics
// to Amazon CloudWatch. To determine whether a desired metric already exists by
// looking up its namespace and dimension using the CloudWatch metrics dashboard in
// the console, follow the procedure in Building dashboards with CloudWatch
// (https://docs.aws.amazon.com/autoscaling/application/userguide/monitoring-cloudwatch.html)
// in the Application Auto Scaling User Guide.
type PredefinedMetricSpecification struct {

	// The metric type. The ALBRequestCountPerTarget metric type applies only to Spot
	// Fleet requests and ECS services.
	//
	// This member is required.
	PredefinedMetricType MetricType

	// Identifies the resource associated with the metric type. You can't specify a
	// resource label unless the metric type is ALBRequestCountPerTarget and there is a
	// target group attached to the Spot Fleet request or ECS service. You create the
	// resource label by appending the final portion of the load balancer ARN and the
	// final portion of the target group ARN into a single value, separated by a
	// forward slash (/). The format is app///targetgroup//, where:
	//
	// * app// is the
	// final portion of the load balancer ARN
	//
	// * targetgroup// is the final portion of
	// the target group ARN.
	//
	// This is an example:
	// app/EC2Co-EcsEl-1TKLTMITMM0EO/f37c06a68c1748aa/targetgroup/EC2Co-Defau-LDNM7Q3ZH1ZN/6d4ea56ca2d6a18d.
	// To find the ARN for an Application Load Balancer, use the DescribeLoadBalancers
	// (https://docs.aws.amazon.com/elasticloadbalancing/latest/APIReference/API_DescribeLoadBalancers.html)
	// API operation. To find the ARN for the target group, use the
	// DescribeTargetGroups
	// (https://docs.aws.amazon.com/elasticloadbalancing/latest/APIReference/API_DescribeTargetGroups.html)
	// API operation.
	ResourceLabel *string
}

// Represents a scalable target.
type ScalableTarget struct {

	// The Unix timestamp for when the scalable target was created.
	//
	// This member is required.
	CreationTime *time.Time

	// The maximum value to scale to in response to a scale-out activity.
	//
	// This member is required.
	MaxCapacity *int32

	// The minimum value to scale to in response to a scale-in activity.
	//
	// This member is required.
	MinCapacity *int32

	// The identifier of the resource associated with the scalable target. This string
	// consists of the resource type and unique identifier.
	//
	// * ECS service - The
	// resource type is service and the unique identifier is the cluster name and
	// service name. Example: service/default/sample-webapp.
	//
	// * Spot Fleet request -
	// The resource type is spot-fleet-request and the unique identifier is the Spot
	// Fleet request ID. Example:
	// spot-fleet-request/sfr-73fbd2ce-aa30-494c-8788-1cee4EXAMPLE.
	//
	// * EMR cluster -
	// The resource type is instancegroup and the unique identifier is the cluster ID
	// and instance group ID. Example:
	// instancegroup/j-2EEZNYKUA1NTV/ig-1791Y4E1L8YI0.
	//
	// * AppStream 2.0 fleet - The
	// resource type is fleet and the unique identifier is the fleet name. Example:
	// fleet/sample-fleet.
	//
	// * DynamoDB table - The resource type is table and the
	// unique identifier is the table name. Example: table/my-table.
	//
	// * DynamoDB global
	// secondary index - The resource type is index and the unique identifier is the
	// index name. Example: table/my-table/index/my-table-index.
	//
	// * Aurora DB cluster -
	// The resource type is cluster and the unique identifier is the cluster name.
	// Example: cluster:my-db-cluster.
	//
	// * Amazon SageMaker endpoint variant - The
	// resource type is variant and the unique identifier is the resource ID. Example:
	// endpoint/my-end-point/variant/KMeansClustering.
	//
	// * Custom resources are not
	// supported with a resource type. This parameter must specify the OutputValue from
	// the CloudFormation template stack used to access the resources. The unique
	// identifier is defined by the service provider. More information is available in
	// our GitHub repository
	// (https://github.com/aws/aws-auto-scaling-custom-resource).
	//
	// * Amazon Comprehend
	// document classification endpoint - The resource type and unique identifier are
	// specified using the endpoint ARN. Example:
	// arn:aws:comprehend:us-west-2:123456789012:document-classifier-endpoint/EXAMPLE.
	//
	// *
	// Amazon Comprehend entity recognizer endpoint - The resource type and unique
	// identifier are specified using the endpoint ARN. Example:
	// arn:aws:comprehend:us-west-2:123456789012:entity-recognizer-endpoint/EXAMPLE.
	//
	// *
	// Lambda provisioned concurrency - The resource type is function and the unique
	// identifier is the function name with a function version or alias name suffix
	// that is not $LATEST. Example: function:my-function:prod or
	// function:my-function:1.
	//
	// * Amazon Keyspaces table - The resource type is table
	// and the unique identifier is the table name. Example:
	// keyspace/mykeyspace/table/mytable.
	//
	// * Amazon MSK cluster - The resource type and
	// unique identifier are specified using the cluster ARN. Example:
	// arn:aws:kafka:us-east-1:123456789012:cluster/demo-cluster-1/6357e0b2-0e6a-4b86-a0b4-70df934c2e31-5.
	//
	// This member is required.
	ResourceId *string

	// The ARN of an IAM role that allows Application Auto Scaling to modify the
	// scalable target on your behalf.
	//
	// This member is required.
	RoleARN *string

	// The scalable dimension associated with the scalable target. This string consists
	// of the service namespace, resource type, and scaling property.
	//
	// *
	// ecs:service:DesiredCount - The desired task count of an ECS service.
	//
	// *
	// ec2:spot-fleet-request:TargetCapacity - The target capacity of a Spot Fleet
	// request.
	//
	// * elasticmapreduce:instancegroup:InstanceCount - The instance count of
	// an EMR Instance Group.
	//
	// * appstream:fleet:DesiredCapacity - The desired capacity
	// of an AppStream 2.0 fleet.
	//
	// * dynamodb:table:ReadCapacityUnits - The provisioned
	// read capacity for a DynamoDB table.
	//
	// * dynamodb:table:WriteCapacityUnits - The
	// provisioned write capacity for a DynamoDB table.
	//
	// *
	// dynamodb:index:ReadCapacityUnits - The provisioned read capacity for a DynamoDB
	// global secondary index.
	//
	// * dynamodb:index:WriteCapacityUnits - The provisioned
	// write capacity for a DynamoDB global secondary index.
	//
	// *
	// rds:cluster:ReadReplicaCount - The count of Aurora Replicas in an Aurora DB
	// cluster. Available for Aurora MySQL-compatible edition and Aurora
	// PostgreSQL-compatible edition.
	//
	// * sagemaker:variant:DesiredInstanceCount - The
	// number of EC2 instances for an Amazon SageMaker model endpoint variant.
	//
	// *
	// custom-resource:ResourceType:Property - The scalable dimension for a custom
	// resource provided by your own application or service.
	//
	// *
	// comprehend:document-classifier-endpoint:DesiredInferenceUnits - The number of
	// inference units for an Amazon Comprehend document classification endpoint.
	//
	// *
	// comprehend:entity-recognizer-endpoint:DesiredInferenceUnits - The number of
	// inference units for an Amazon Comprehend entity recognizer endpoint.
	//
	// *
	// lambda:function:ProvisionedConcurrency - The provisioned concurrency for a
	// Lambda function.
	//
	// * cassandra:table:ReadCapacityUnits - The provisioned read
	// capacity for an Amazon Keyspaces table.
	//
	// * cassandra:table:WriteCapacityUnits -
	// The provisioned write capacity for an Amazon Keyspaces table.
	//
	// *
	// kafka:broker-storage:VolumeSize - The provisioned volume size (in GiB) for
	// brokers in an Amazon MSK cluster.
	//
	// This member is required.
	ScalableDimension ScalableDimension

	// The namespace of the AWS service that provides the resource, or a
	// custom-resource.
	//
	// This member is required.
	ServiceNamespace ServiceNamespace

	// Specifies whether the scaling activities for a scalable target are in a
	// suspended state.
	SuspendedState *SuspendedState
}

// Represents the minimum and maximum capacity for a scheduled action.
type ScalableTargetAction struct {

	// The maximum capacity. Although you can specify a large maximum capacity, note
	// that service quotas may impose lower limits. Each service has its own default
	// quotas for the maximum capacity of the resource. If you want to specify a higher
	// limit, you can request an increase. For more information, consult the
	// documentation for that service. For information about the default quotas for
	// each service, see Service Endpoints and Quotas
	// (https://docs.aws.amazon.com/general/latest/gr/aws-service-information.html) in
	// the Amazon Web Services General Reference.
	MaxCapacity *int32

	// The minimum capacity. For certain resources, the minimum value allowed is 0.
	// This includes Lambda provisioned concurrency, Spot Fleet, ECS services, Aurora
	// DB clusters, EMR clusters, and custom resources. For all other resources, the
	// minimum value allowed is 1.
	MinCapacity *int32
}

// Represents a scaling activity.
type ScalingActivity struct {

	// The unique identifier of the scaling activity.
	//
	// This member is required.
	ActivityId *string

	// A simple description of what caused the scaling activity to happen.
	//
	// This member is required.
	Cause *string

	// A simple description of what action the scaling activity intends to accomplish.
	//
	// This member is required.
	Description *string

	// The identifier of the resource associated with the scaling activity. This string
	// consists of the resource type and unique identifier.
	//
	// * ECS service - The
	// resource type is service and the unique identifier is the cluster name and
	// service name. Example: service/default/sample-webapp.
	//
	// * Spot Fleet request -
	// The resource type is spot-fleet-request and the unique identifier is the Spot
	// Fleet request ID. Example:
	// spot-fleet-request/sfr-73fbd2ce-aa30-494c-8788-1cee4EXAMPLE.
	//
	// * EMR cluster -
	// The resource type is instancegroup and the unique identifier is the cluster ID
	// and instance group ID. Example:
	// instancegroup/j-2EEZNYKUA1NTV/ig-1791Y4E1L8YI0.
	//
	// * AppStream 2.0 fleet - The
	// resource type is fleet and the unique identifier is the fleet name. Example:
	// fleet/sample-fleet.
	//
	// * DynamoDB table - The resource type is table and the
	// unique identifier is the table name. Example: table/my-table.
	//
	// * DynamoDB global
	// secondary index - The resource type is index and the unique identifier is the
	// index name. Example: table/my-table/index/my-table-index.
	//
	// * Aurora DB cluster -
	// The resource type is cluster and the unique identifier is the cluster name.
	// Example: cluster:my-db-cluster.
	//
	// * Amazon SageMaker endpoint variant - The
	// resource type is variant and the unique identifier is the resource ID. Example:
	// endpoint/my-end-point/variant/KMeansClustering.
	//
	// * Custom resources are not
	// supported with a resource type. This parameter must specify the OutputValue from
	// the CloudFormation template stack used to access the resources. The unique
	// identifier is defined by the service provider. More information is available in
	// our GitHub repository
	// (https://github.com/aws/aws-auto-scaling-custom-resource).
	//
	// * Amazon Comprehend
	// document classification endpoint - The resource type and unique identifier are
	// specified using the endpoint ARN. Example:
	// arn:aws:comprehend:us-west-2:123456789012:document-classifier-endpoint/EXAMPLE.
	//
	// *
	// Amazon Comprehend entity recognizer endpoint - The resource type and unique
	// identifier are specified using the endpoint ARN. Example:
	// arn:aws:comprehend:us-west-2:123456789012:entity-recognizer-endpoint/EXAMPLE.
	//
	// *
	// Lambda provisioned concurrency - The resource type is function and the unique
	// identifier is the function name with a function version or alias name suffix
	// that is not $LATEST. Example: function:my-function:prod or
	// function:my-function:1.
	//
	// * Amazon Keyspaces table - The resource type is table
	// and the unique identifier is the table name. Example:
	// keyspace/mykeyspace/table/mytable.
	//
	// * Amazon MSK cluster - The resource type and
	// unique identifier are specified using the cluster ARN. Example:
	// arn:aws:kafka:us-east-1:123456789012:cluster/demo-cluster-1/6357e0b2-0e6a-4b86-a0b4-70df934c2e31-5.
	//
	// This member is required.
	ResourceId *string

	// The scalable dimension. This string consists of the service namespace, resource
	// type, and scaling property.
	//
	// * ecs:service:DesiredCount - The desired task count
	// of an ECS service.
	//
	// * ec2:spot-fleet-request:TargetCapacity - The target
	// capacity of a Spot Fleet request.
	//
	// *
	// elasticmapreduce:instancegroup:InstanceCount - The instance count of an EMR
	// Instance Group.
	//
	// * appstream:fleet:DesiredCapacity - The desired capacity of an
	// AppStream 2.0 fleet.
	//
	// * dynamodb:table:ReadCapacityUnits - The provisioned read
	// capacity for a DynamoDB table.
	//
	// * dynamodb:table:WriteCapacityUnits - The
	// provisioned write capacity for a DynamoDB table.
	//
	// *
	// dynamodb:index:ReadCapacityUnits - The provisioned read capacity for a DynamoDB
	// global secondary index.
	//
	// * dynamodb:index:WriteCapacityUnits - The provisioned
	// write capacity for a DynamoDB global secondary index.
	//
	// *
	// rds:cluster:ReadReplicaCount - The count of Aurora Replicas in an Aurora DB
	// cluster. Available for Aurora MySQL-compatible edition and Aurora
	// PostgreSQL-compatible edition.
	//
	// * sagemaker:variant:DesiredInstanceCount - The
	// number of EC2 instances for an Amazon SageMaker model endpoint variant.
	//
	// *
	// custom-resource:ResourceType:Property - The scalable dimension for a custom
	// resource provided by your own application or service.
	//
	// *
	// comprehend:document-classifier-endpoint:DesiredInferenceUnits - The number of
	// inference units for an Amazon Comprehend document classification endpoint.
	//
	// *
	// comprehend:entity-recognizer-endpoint:DesiredInferenceUnits - The number of
	// inference units for an Amazon Comprehend entity recognizer endpoint.
	//
	// *
	// lambda:function:ProvisionedConcurrency - The provisioned concurrency for a
	// Lambda function.
	//
	// * cassandra:table:ReadCapacityUnits - The provisioned read
	// capacity for an Amazon Keyspaces table.
	//
	// * cassandra:table:WriteCapacityUnits -
	// The provisioned write capacity for an Amazon Keyspaces table.
	//
	// *
	// kafka:broker-storage:VolumeSize - The provisioned volume size (in GiB) for
	// brokers in an Amazon MSK cluster.
	//
	// This member is required.
	ScalableDimension ScalableDimension

	// The namespace of the AWS service that provides the resource, or a
	// custom-resource.
	//
	// This member is required.
	ServiceNamespace ServiceNamespace

	// The Unix timestamp for when the scaling activity began.
	//
	// This member is required.
	StartTime *time.Time

	// Indicates the status of the scaling activity.
	//
	// This member is required.
	StatusCode ScalingActivityStatusCode

	// The details about the scaling activity.
	Details *string

	// The Unix timestamp for when the scaling activity ended.
	EndTime *time.Time

	// A simple message about the current status of the scaling activity.
	StatusMessage *string
}

// Represents a scaling policy to use with Application Auto Scaling. For more
// information about configuring scaling policies for a specific service, see
// Getting started with Application Auto Scaling
// (https://docs.aws.amazon.com/autoscaling/application/userguide/getting-started.html)
// in the Application Auto Scaling User Guide.
type ScalingPolicy struct {

	// The Unix timestamp for when the scaling policy was created.
	//
	// This member is required.
	CreationTime *time.Time

	// The Amazon Resource Name (ARN) of the scaling policy.
	//
	// This member is required.
	PolicyARN *string

	// The name of the scaling policy.
	//
	// This member is required.
	PolicyName *string

	// The scaling policy type.
	//
	// This member is required.
	PolicyType PolicyType

	// The identifier of the resource associated with the scaling policy. This string
	// consists of the resource type and unique identifier.
	//
	// * ECS service - The
	// resource type is service and the unique identifier is the cluster name and
	// service name. Example: service/default/sample-webapp.
	//
	// * Spot Fleet request -
	// The resource type is spot-fleet-request and the unique identifier is the Spot
	// Fleet request ID. Example:
	// spot-fleet-request/sfr-73fbd2ce-aa30-494c-8788-1cee4EXAMPLE.
	//
	// * EMR cluster -
	// The resource type is instancegroup and the unique identifier is the cluster ID
	// and instance group ID. Example:
	// instancegroup/j-2EEZNYKUA1NTV/ig-1791Y4E1L8YI0.
	//
	// * AppStream 2.0 fleet - The
	// resource type is fleet and the unique identifier is the fleet name. Example:
	// fleet/sample-fleet.
	//
	// * DynamoDB table - The resource type is table and the
	// unique identifier is the table name. Example: table/my-table.
	//
	// * DynamoDB global
	// secondary index - The resource type is index and the unique identifier is the
	// index name. Example: table/my-table/index/my-table-index.
	//
	// * Aurora DB cluster -
	// The resource type is cluster and the unique identifier is the cluster name.
	// Example: cluster:my-db-cluster.
	//
	// * Amazon SageMaker endpoint variant - The
	// resource type is variant and the unique identifier is the resource ID. Example:
	// endpoint/my-end-point/variant/KMeansClustering.
	//
	// * Custom resources are not
	// supported with a resource type. This parameter must specify the OutputValue from
	// the CloudFormation template stack used to access the resources. The unique
	// identifier is defined by the service provider. More information is available in
	// our GitHub repository
	// (https://github.com/aws/aws-auto-scaling-custom-resource).
	//
	// * Amazon Comprehend
	// document classification endpoint - The resource type and unique identifier are
	// specified using the endpoint ARN. Example:
	// arn:aws:comprehend:us-west-2:123456789012:document-classifier-endpoint/EXAMPLE.
	//
	// *
	// Amazon Comprehend entity recognizer endpoint - The resource type and unique
	// identifier are specified using the endpoint ARN. Example:
	// arn:aws:comprehend:us-west-2:123456789012:entity-recognizer-endpoint/EXAMPLE.
	//
	// *
	// Lambda provisioned concurrency - The resource type is function and the unique
	// identifier is the function name with a function version or alias name suffix
	// that is not $LATEST. Example: function:my-function:prod or
	// function:my-function:1.
	//
	// * Amazon Keyspaces table - The resource type is table
	// and the unique identifier is the table name. Example:
	// keyspace/mykeyspace/table/mytable.
	//
	// * Amazon MSK cluster - The resource type and
	// unique identifier are specified using the cluster ARN. Example:
	// arn:aws:kafka:us-east-1:123456789012:cluster/demo-cluster-1/6357e0b2-0e6a-4b86-a0b4-70df934c2e31-5.
	//
	// This member is required.
	ResourceId *string

	// The scalable dimension. This string consists of the service namespace, resource
	// type, and scaling property.
	//
	// * ecs:service:DesiredCount - The desired task count
	// of an ECS service.
	//
	// * ec2:spot-fleet-request:TargetCapacity - The target
	// capacity of a Spot Fleet request.
	//
	// *
	// elasticmapreduce:instancegroup:InstanceCount - The instance count of an EMR
	// Instance Group.
	//
	// * appstream:fleet:DesiredCapacity - The desired capacity of an
	// AppStream 2.0 fleet.
	//
	// * dynamodb:table:ReadCapacityUnits - The provisioned read
	// capacity for a DynamoDB table.
	//
	// * dynamodb:table:WriteCapacityUnits - The
	// provisioned write capacity for a DynamoDB table.
	//
	// *
	// dynamodb:index:ReadCapacityUnits - The provisioned read capacity for a DynamoDB
	// global secondary index.
	//
	// * dynamodb:index:WriteCapacityUnits - The provisioned
	// write capacity for a DynamoDB global secondary index.
	//
	// *
	// rds:cluster:ReadReplicaCount - The count of Aurora Replicas in an Aurora DB
	// cluster. Available for Aurora MySQL-compatible edition and Aurora
	// PostgreSQL-compatible edition.
	//
	// * sagemaker:variant:DesiredInstanceCount - The
	// number of EC2 instances for an Amazon SageMaker model endpoint variant.
	//
	// *
	// custom-resource:ResourceType:Property - The scalable dimension for a custom
	// resource provided by your own application or service.
	//
	// *
	// comprehend:document-classifier-endpoint:DesiredInferenceUnits - The number of
	// inference units for an Amazon Comprehend document classification endpoint.
	//
	// *
	// comprehend:entity-recognizer-endpoint:DesiredInferenceUnits - The number of
	// inference units for an Amazon Comprehend entity recognizer endpoint.
	//
	// *
	// lambda:function:ProvisionedConcurrency - The provisioned concurrency for a
	// Lambda function.
	//
	// * cassandra:table:ReadCapacityUnits - The provisioned read
	// capacity for an Amazon Keyspaces table.
	//
	// * cassandra:table:WriteCapacityUnits -
	// The provisioned write capacity for an Amazon Keyspaces table.
	//
	// *
	// kafka:broker-storage:VolumeSize - The provisioned volume size (in GiB) for
	// brokers in an Amazon MSK cluster.
	//
	// This member is required.
	ScalableDimension ScalableDimension

	// The namespace of the AWS service that provides the resource, or a
	// custom-resource.
	//
	// This member is required.
	ServiceNamespace ServiceNamespace

	// The CloudWatch alarms associated with the scaling policy.
	Alarms []Alarm

	// A step scaling policy.
	StepScalingPolicyConfiguration *StepScalingPolicyConfiguration

	// A target tracking scaling policy.
	TargetTrackingScalingPolicyConfiguration *TargetTrackingScalingPolicyConfiguration
}

// Represents a scheduled action.
type ScheduledAction struct {

	// The date and time that the scheduled action was created.
	//
	// This member is required.
	CreationTime *time.Time

	// The identifier of the resource associated with the scaling policy. This string
	// consists of the resource type and unique identifier.
	//
	// * ECS service - The
	// resource type is service and the unique identifier is the cluster name and
	// service name. Example: service/default/sample-webapp.
	//
	// * Spot Fleet request -
	// The resource type is spot-fleet-request and the unique identifier is the Spot
	// Fleet request ID. Example:
	// spot-fleet-request/sfr-73fbd2ce-aa30-494c-8788-1cee4EXAMPLE.
	//
	// * EMR cluster -
	// The resource type is instancegroup and the unique identifier is the cluster ID
	// and instance group ID. Example:
	// instancegroup/j-2EEZNYKUA1NTV/ig-1791Y4E1L8YI0.
	//
	// * AppStream 2.0 fleet - The
	// resource type is fleet and the unique identifier is the fleet name. Example:
	// fleet/sample-fleet.
	//
	// * DynamoDB table - The resource type is table and the
	// unique identifier is the table name. Example: table/my-table.
	//
	// * DynamoDB global
	// secondary index - The resource type is index and the unique identifier is the
	// index name. Example: table/my-table/index/my-table-index.
	//
	// * Aurora DB cluster -
	// The resource type is cluster and the unique identifier is the cluster name.
	// Example: cluster:my-db-cluster.
	//
	// * Amazon SageMaker endpoint variant - The
	// resource type is variant and the unique identifier is the resource ID. Example:
	// endpoint/my-end-point/variant/KMeansClustering.
	//
	// * Custom resources are not
	// supported with a resource type. This parameter must specify the OutputValue from
	// the CloudFormation template stack used to access the resources. The unique
	// identifier is defined by the service provider. More information is available in
	// our GitHub repository
	// (https://github.com/aws/aws-auto-scaling-custom-resource).
	//
	// * Amazon Comprehend
	// document classification endpoint - The resource type and unique identifier are
	// specified using the endpoint ARN. Example:
	// arn:aws:comprehend:us-west-2:123456789012:document-classifier-endpoint/EXAMPLE.
	//
	// *
	// Amazon Comprehend entity recognizer endpoint - The resource type and unique
	// identifier are specified using the endpoint ARN. Example:
	// arn:aws:comprehend:us-west-2:123456789012:entity-recognizer-endpoint/EXAMPLE.
	//
	// *
	// Lambda provisioned concurrency - The resource type is function and the unique
	// identifier is the function name with a function version or alias name suffix
	// that is not $LATEST. Example: function:my-function:prod or
	// function:my-function:1.
	//
	// * Amazon Keyspaces table - The resource type is table
	// and the unique identifier is the table name. Example:
	// keyspace/mykeyspace/table/mytable.
	//
	// * Amazon MSK cluster - The resource type and
	// unique identifier are specified using the cluster ARN. Example:
	// arn:aws:kafka:us-east-1:123456789012:cluster/demo-cluster-1/6357e0b2-0e6a-4b86-a0b4-70df934c2e31-5.
	//
	// This member is required.
	ResourceId *string

	// The schedule for this action. The following formats are supported:
	//
	// * At
	// expressions - "at(yyyy-mm-ddThh:mm:ss)"
	//
	// * Rate expressions - "rate(value
	// unit)"
	//
	// * Cron expressions - "cron(fields)"
	//
	// At expressions are useful for
	// one-time schedules. Cron expressions are useful for scheduled actions that run
	// periodically at a specified date and time, and rate expressions are useful for
	// scheduled actions that run at a regular interval. At and cron expressions use
	// Universal Coordinated Time (UTC) by default. The cron format consists of six
	// fields separated by white spaces: [Minutes] [Hours] [Day_of_Month] [Month]
	// [Day_of_Week] [Year]. For rate expressions, value is a positive integer and unit
	// is minute | minutes | hour | hours | day | days. For more information and
	// examples, see Example scheduled actions for Application Auto Scaling
	// (https://docs.aws.amazon.com/autoscaling/application/userguide/examples-scheduled-actions.html)
	// in the Application Auto Scaling User Guide.
	//
	// This member is required.
	Schedule *string

	// The Amazon Resource Name (ARN) of the scheduled action.
	//
	// This member is required.
	ScheduledActionARN *string

	// The name of the scheduled action.
	//
	// This member is required.
	ScheduledActionName *string

	// The namespace of the AWS service that provides the resource, or a
	// custom-resource.
	//
	// This member is required.
	ServiceNamespace ServiceNamespace

	// The date and time that the action is scheduled to end, in UTC.
	EndTime *time.Time

	// The scalable dimension. This string consists of the service namespace, resource
	// type, and scaling property.
	//
	// * ecs:service:DesiredCount - The desired task count
	// of an ECS service.
	//
	// * ec2:spot-fleet-request:TargetCapacity - The target
	// capacity of a Spot Fleet request.
	//
	// *
	// elasticmapreduce:instancegroup:InstanceCount - The instance count of an EMR
	// Instance Group.
	//
	// * appstream:fleet:DesiredCapacity - The desired capacity of an
	// AppStream 2.0 fleet.
	//
	// * dynamodb:table:ReadCapacityUnits - The provisioned read
	// capacity for a DynamoDB table.
	//
	// * dynamodb:table:WriteCapacityUnits - The
	// provisioned write capacity for a DynamoDB table.
	//
	// *
	// dynamodb:index:ReadCapacityUnits - The provisioned read capacity for a DynamoDB
	// global secondary index.
	//
	// * dynamodb:index:WriteCapacityUnits - The provisioned
	// write capacity for a DynamoDB global secondary index.
	//
	// *
	// rds:cluster:ReadReplicaCount - The count of Aurora Replicas in an Aurora DB
	// cluster. Available for Aurora MySQL-compatible edition and Aurora
	// PostgreSQL-compatible edition.
	//
	// * sagemaker:variant:DesiredInstanceCount - The
	// number of EC2 instances for an Amazon SageMaker model endpoint variant.
	//
	// *
	// custom-resource:ResourceType:Property - The scalable dimension for a custom
	// resource provided by your own application or service.
	//
	// *
	// comprehend:document-classifier-endpoint:DesiredInferenceUnits - The number of
	// inference units for an Amazon Comprehend document classification endpoint.
	//
	// *
	// comprehend:entity-recognizer-endpoint:DesiredInferenceUnits - The number of
	// inference units for an Amazon Comprehend entity recognizer endpoint.
	//
	// *
	// lambda:function:ProvisionedConcurrency - The provisioned concurrency for a
	// Lambda function.
	//
	// * cassandra:table:ReadCapacityUnits - The provisioned read
	// capacity for an Amazon Keyspaces table.
	//
	// * cassandra:table:WriteCapacityUnits -
	// The provisioned write capacity for an Amazon Keyspaces table.
	//
	// *
	// kafka:broker-storage:VolumeSize - The provisioned volume size (in GiB) for
	// brokers in an Amazon MSK cluster.
	ScalableDimension ScalableDimension

	// The new minimum and maximum capacity. You can set both values or just one. At
	// the scheduled time, if the current capacity is below the minimum capacity,
	// Application Auto Scaling scales out to the minimum capacity. If the current
	// capacity is above the maximum capacity, Application Auto Scaling scales in to
	// the maximum capacity.
	ScalableTargetAction *ScalableTargetAction

	// The date and time that the action is scheduled to begin, in UTC.
	StartTime *time.Time

	// The time zone used when referring to the date and time of a scheduled action,
	// when the scheduled action uses an at or cron expression.
	Timezone *string
}

// Represents a step adjustment for a StepScalingPolicyConfiguration
// (https://docs.aws.amazon.com/autoscaling/application/APIReference/API_StepScalingPolicyConfiguration.html).
// Describes an adjustment based on the difference between the value of the
// aggregated CloudWatch metric and the breach threshold that you've defined for
// the alarm. For the following examples, suppose that you have an alarm with a
// breach threshold of 50:
//
// * To trigger the adjustment when the metric is greater
// than or equal to 50 and less than 60, specify a lower bound of 0 and an upper
// bound of 10.
//
// * To trigger the adjustment when the metric is greater than 40 and
// less than or equal to 50, specify a lower bound of -10 and an upper bound of
// 0.
//
// There are a few rules for the step adjustments for your step policy:
//
// * The
// ranges of your step adjustments can't overlap or have a gap.
//
// * At most one step
// adjustment can have a null lower bound. If one step adjustment has a negative
// lower bound, then there must be a step adjustment with a null lower bound.
//
// * At
// most one step adjustment can have a null upper bound. If one step adjustment has
// a positive upper bound, then there must be a step adjustment with a null upper
// bound.
//
// * The upper and lower bound can't be null in the same step adjustment.
type StepAdjustment struct {

	// 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.
	//
	// This member is required.
	ScalingAdjustment *int32

	// The lower bound for the difference between the alarm threshold and the
	// CloudWatch metric. If the metric value is above the breach threshold, the lower
	// bound is inclusive (the metric must be greater than or equal to the threshold
	// plus the lower bound). Otherwise, it is exclusive (the metric must be greater
	// than the threshold plus the lower bound). A null value indicates negative
	// infinity.
	MetricIntervalLowerBound *float64

	// The upper bound for the difference between the alarm threshold and the
	// CloudWatch metric. If the metric value is above the breach threshold, the upper
	// bound is exclusive (the metric must be less than the threshold plus the upper
	// bound). Otherwise, it is inclusive (the metric must be less than or equal to the
	// threshold plus the upper bound). A null value indicates positive infinity. The
	// upper bound must be greater than the lower bound.
	MetricIntervalUpperBound *float64
}

// Represents a step scaling policy configuration to use with Application Auto
// Scaling.
type StepScalingPolicyConfiguration struct {

	// Specifies how the ScalingAdjustment value in a StepAdjustment
	// (https://docs.aws.amazon.com/autoscaling/application/APIReference/API_StepAdjustment.html)
	// is interpreted (for example, an absolute number or a percentage). The valid
	// values are ChangeInCapacity, ExactCapacity, and PercentChangeInCapacity.
	// AdjustmentType is required if you are adding a new step scaling policy
	// configuration.
	AdjustmentType AdjustmentType

	// The amount of time, in seconds, to wait for a previous scaling activity to take
	// effect. With scale-out policies, the intention is to continuously (but not
	// excessively) scale out. After Application Auto Scaling successfully scales out
	// using a step scaling policy, it starts to calculate the cooldown time. The
	// scaling policy won't increase the desired capacity again unless either a larger
	// scale out is triggered or the cooldown period ends. While the cooldown period is
	// in effect, capacity added by the initiating scale-out activity is calculated as
	// part of the desired capacity for the next scale-out activity. For example, when
	// an alarm triggers a step scaling policy to increase the capacity by 2, the
	// scaling activity completes successfully, and a cooldown period starts. If the
	// alarm triggers again during the cooldown period but at a more aggressive step
	// adjustment of 3, the previous increase of 2 is considered part of the current
	// capacity. Therefore, only 1 is added to the capacity. With scale-in policies,
	// the intention is to scale in conservatively to protect your application’s
	// availability, so scale-in activities are blocked until the cooldown period has
	// expired. However, if another alarm triggers a scale-out activity during the
	// cooldown period after a scale-in activity, Application Auto Scaling scales out
	// the target immediately. In this case, the cooldown period for the scale-in
	// activity stops and doesn't complete. Application Auto Scaling provides a default
	// value of 300 for the following scalable targets:
	//
	// * ECS services
	//
	// * Spot Fleet
	// requests
	//
	// * EMR clusters
	//
	// * AppStream 2.0 fleets
	//
	// * Aurora DB clusters
	//
	// * Amazon
	// SageMaker endpoint variants
	//
	// * Custom resources
	//
	// For all other scalable targets,
	// the default value is 0:
	//
	// * DynamoDB tables
	//
	// * DynamoDB global secondary
	// indexes
	//
	// * Amazon Comprehend document classification and entity recognizer
	// endpoints
	//
	// * Lambda provisioned concurrency
	//
	// * Amazon Keyspaces tables
	//
	// * Amazon
	// MSK broker storage
	Cooldown *int32

	// The aggregation type for the CloudWatch metrics. Valid values are Minimum,
	// Maximum, and Average. If the aggregation type is null, the value is treated as
	// Average.
	MetricAggregationType MetricAggregationType

	// 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 Amazon ECS service by 25 percent and you specify a
	// MinAdjustmentMagnitude of 2. If the service has 4 tasks and the scaling policy
	// is performed, 25 percent of 4 is 1. However, because you specified a
	// MinAdjustmentMagnitude of 2, Application Auto Scaling scales out the service by
	// 2 tasks.
	MinAdjustmentMagnitude *int32

	// A set of adjustments that enable you to scale based on the size of the alarm
	// breach. At least one step adjustment is required if you are adding a new step
	// scaling policy configuration.
	StepAdjustments []StepAdjustment
}

// Specifies whether the scaling activities for a scalable target are in a
// suspended state.
type SuspendedState struct {

	// Whether scale in by a target tracking scaling policy or a step scaling policy is
	// suspended. Set the value to true if you don't want Application Auto Scaling to
	// remove capacity when a scaling policy is triggered. The default is false.
	DynamicScalingInSuspended *bool

	// Whether scale out by a target tracking scaling policy or a step scaling policy
	// is suspended. Set the value to true if you don't want Application Auto Scaling
	// to add capacity when a scaling policy is triggered. The default is false.
	DynamicScalingOutSuspended *bool

	// Whether scheduled scaling is suspended. Set the value to true if you don't want
	// Application Auto Scaling to add or remove capacity by initiating scheduled
	// actions. The default is false.
	ScheduledScalingSuspended *bool
}

// Represents a target tracking scaling policy configuration to use with
// Application Auto Scaling.
type TargetTrackingScalingPolicyConfiguration struct {

	// The target value for the metric. Although this property accepts numbers of type
	// Double, it won't accept values that are either too small or too large. Values
	// must be in the range of -2^360 to 2^360. The value must be a valid number based
	// on the choice of metric. For example, if the metric is CPU utilization, then the
	// target value is a percent value that represents how much of the CPU can be used
	// before scaling out.
	//
	// This member is required.
	TargetValue *float64

	// A customized metric. You can specify either a predefined metric or a customized
	// metric.
	CustomizedMetricSpecification *CustomizedMetricSpecification

	// Indicates whether scale in by the target tracking scaling policy is disabled. If
	// the value is true, scale in is disabled and the target tracking scaling policy
	// won't remove capacity from the scalable target. Otherwise, scale in is enabled
	// and the target tracking scaling policy can remove capacity from the scalable
	// target. The default value is false.
	DisableScaleIn *bool

	// A predefined metric. You can specify either a predefined metric or a customized
	// metric.
	PredefinedMetricSpecification *PredefinedMetricSpecification

	// The amount of time, in seconds, after a scale-in activity completes before
	// another scale-in activity can start. With the scale-in cooldown period, the
	// intention is to scale in conservatively to protect your application’s
	// availability, so scale-in activities are blocked until the cooldown period has
	// expired. However, if another alarm triggers a scale-out activity during the
	// scale-in cooldown period, Application Auto Scaling scales out the target
	// immediately. In this case, the scale-in cooldown period stops and doesn't
	// complete. Application Auto Scaling provides a default value of 300 for the
	// following scalable targets:
	//
	// * ECS services
	//
	// * Spot Fleet requests
	//
	// * EMR
	// clusters
	//
	// * AppStream 2.0 fleets
	//
	// * Aurora DB clusters
	//
	// * Amazon SageMaker
	// endpoint variants
	//
	// * Custom resources
	//
	// For all other scalable targets, the
	// default value is 0:
	//
	// * DynamoDB tables
	//
	// * DynamoDB global secondary indexes
	//
	// *
	// Amazon Comprehend document classification and entity recognizer endpoints
	//
	// *
	// Lambda provisioned concurrency
	//
	// * Amazon Keyspaces tables
	//
	// * Amazon MSK broker
	// storage
	ScaleInCooldown *int32

	// The amount of time, in seconds, to wait for a previous scale-out activity to
	// take effect. With the scale-out cooldown period, the intention is to
	// continuously (but not excessively) scale out. After Application Auto Scaling
	// successfully scales out using a target tracking scaling policy, it starts to
	// calculate the cooldown time. The scaling policy won't increase the desired
	// capacity again unless either a larger scale out is triggered or the cooldown
	// period ends. While the cooldown period is in effect, the capacity added by the
	// initiating scale-out activity is calculated as part of the desired capacity for
	// the next scale-out activity. Application Auto Scaling provides a default value
	// of 300 for the following scalable targets:
	//
	// * ECS services
	//
	// * Spot Fleet
	// requests
	//
	// * EMR clusters
	//
	// * AppStream 2.0 fleets
	//
	// * Aurora DB clusters
	//
	// * Amazon
	// SageMaker endpoint variants
	//
	// * Custom resources
	//
	// For all other scalable targets,
	// the default value is 0:
	//
	// * DynamoDB tables
	//
	// * DynamoDB global secondary
	// indexes
	//
	// * Amazon Comprehend document classification and entity recognizer
	// endpoints
	//
	// * Lambda provisioned concurrency
	//
	// * Amazon Keyspaces tables
	//
	// * Amazon
	// MSK broker storage
	ScaleOutCooldown *int32
}