Class: AWSCDK::EMR::CfnCluster::ScalingRuleProperty

Inherits:
Jsii::Struct
  • Object
show all
Defined in:
emr/cfn_cluster.rb

Overview

ScalingRule is a subproperty of the AutoScalingPolicy property type.

ScalingRule defines the scale-in or scale-out rules for scaling activity, including the CloudWatch metric alarm that triggers activity, how EC2 instances are added or removed, and the periodicity of adjustments. The automatic scaling policy for an instance group can comprise one or more automatic scaling rules.

See Also:

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(action:, name:, trigger:, description: nil) ⇒ ScalingRuleProperty

Returns a new instance of ScalingRuleProperty.

Parameters:



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# File 'emr/cfn_cluster.rb', line 2745

def initialize(action:, name:, trigger:, description: nil)
  @action = action.is_a?(Hash) ? ::AWSCDK::EMR::CfnCluster::ScalingActionProperty.new(**action.transform_keys(&:to_sym)) : action
  Jsii::Type.check_type(@action, JSON.parse(Base64.strict_decode64("eyJ1bmlvbiI6eyJ0eXBlcyI6W3siZnFuIjoiYXdzLWNkay1saWIuSVJlc29sdmFibGUifSx7ImZxbiI6ImF3cy1jZGstbGliLmF3c19lbXIuQ2ZuQ2x1c3Rlci5TY2FsaW5nQWN0aW9uUHJvcGVydHkifV19fQ==")), "action")
  @name = name
  Jsii::Type.check_type(@name, JSON.parse(Base64.strict_decode64("eyJwcmltaXRpdmUiOiJzdHJpbmcifQ==")), "name")
  @trigger = trigger.is_a?(Hash) ? ::AWSCDK::EMR::CfnCluster::ScalingTriggerProperty.new(**trigger.transform_keys(&:to_sym)) : trigger
  Jsii::Type.check_type(@trigger, JSON.parse(Base64.strict_decode64("eyJ1bmlvbiI6eyJ0eXBlcyI6W3siZnFuIjoiYXdzLWNkay1saWIuSVJlc29sdmFibGUifSx7ImZxbiI6ImF3cy1jZGstbGliLmF3c19lbXIuQ2ZuQ2x1c3Rlci5TY2FsaW5nVHJpZ2dlclByb3BlcnR5In1dfX0=")), "trigger")
  @description = description
  Jsii::Type.check_type(@description, JSON.parse(Base64.strict_decode64("eyJwcmltaXRpdmUiOiJzdHJpbmcifQ==")), "description") unless @description.nil?
end

Instance Attribute Details

#action ⇒ AWSCDK::IResolvable, AWSCDK::EMR::CfnCluster::ScalingActionProperty (readonly)

The conditions that trigger an automatic scaling activity.

Returns:

See Also:



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# File 'emr/cfn_cluster.rb', line 2760

def action
  @action
end

#description ⇒ String? (readonly)

A friendly, more verbose description of the automatic scaling rule.

Returns:

  • (String, nil)

See Also:



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# File 'emr/cfn_cluster.rb', line 2777

def description
  @description
end

#name ⇒ String (readonly)

The name used to identify an automatic scaling rule.

Rule names must be unique within a scaling policy.

Returns:

  • (String)

See Also:



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# File 'emr/cfn_cluster.rb', line 2767

def name
  @name
end

#trigger ⇒ AWSCDK::IResolvable, AWSCDK::EMR::CfnCluster::ScalingTriggerProperty (readonly)

The CloudWatch alarm definition that determines when automatic scaling activity is triggered.

Returns:

See Also:



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# File 'emr/cfn_cluster.rb', line 2772

def trigger
  @trigger
end

Class Method Details

.jsii_properties ⇒ Object 



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# File 'emr/cfn_cluster.rb', line 2779

def self.jsii_properties
  {
    :action => "action",
    :name => "name",
    :trigger => "trigger",
    :description => "description",
  }
end

Instance Method Details

#to_jsii ⇒ Object 



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# File 'emr/cfn_cluster.rb', line 2788

def to_jsii
  result = {}
  result.merge!({
    "action" => @action,
    "name" => @name,
    "trigger" => @trigger,
    "description" => @description,
  })
  result.compact
end