Class: AWSCDK::ECS::CfnService::PlacementStrategyProperty

Inherits:

Jsii::Struct

• Object
• Jsii::Struct
• AWSCDK::ECS::CfnService::PlacementStrategyProperty

Defined in:

ecs/cfn_service.rb

Overview

The task placement strategy for a task or service.

For more information, see Task placement strategies in the Amazon Elastic Container Service Developer Guide .

See Also:

• http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-ecs-service-placementstrategy.html

Instance Attribute Summary

• #field ⇒ String^? readonly

  The field to apply the placement strategy against.

• #type ⇒ String readonly

  The type of placement strategy.

Class Method Summary

• .jsii_properties ⇒ Object

Instance Method Summary

• #initialize(type:, field: nil) ⇒ PlacementStrategyProperty constructor

  A new instance of PlacementStrategyProperty.

• #to_jsii ⇒ Object

Constructor Details

#initialize(type:, field: nil) ⇒ PlacementStrategyProperty

Returns a new instance of PlacementStrategyProperty.

Parameters:

• type (String) —

  The type of placement strategy.

• field (String, nil) (defaults to: nil) —

  The field to apply the placement strategy against.

# File 'ecs/cfn_service.rb', line 2302

def initialize(type:, field: nil)
  @type = type
  Jsii::Type.check_type(@type, JSON.parse(Base64.strict_decode64("eyJwcmltaXRpdmUiOiJzdHJpbmcifQ==")), "type")
  @field = field
  Jsii::Type.check_type(@field, JSON.parse(Base64.strict_decode64("eyJwcmltaXRpdmUiOiJzdHJpbmcifQ==")), "field") unless @field.nil?
end

Instance Attribute Details

#field ⇒ String^? (readonly)

The field to apply the placement strategy against.

For the spread placement strategy, valid values are instance_id (or host , which has the same effect), or any platform or custom attribute that's applied to a container instance, such as attribute:ecs.availability-zone . For the binpack placement strategy, valid values are cpu and memory . For the random placement strategy, this field is not used.

Returns:

• (String, nil)

See Also:

• http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-ecs-service-placementstrategy.html#cfn-ecs-service-placementstrategy-field

# File 'ecs/cfn_service.rb', line 2322

def field
  @field
end

#type ⇒ String (readonly)

The type of placement strategy.

The random placement strategy randomly places tasks on available candidates. The spread placement strategy spreads placement across available candidates evenly based on the field parameter. The binpack strategy places tasks on available candidates that have the least available amount of the resource that's specified with the field parameter. For example, if you binpack on memory, a task is placed on the instance with the least amount of remaining memory but still enough to run the task.

Returns:

• (String)

See Also:

• http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-ecs-service-placementstrategy.html#cfn-ecs-service-placementstrategy-type

# File 'ecs/cfn_service.rb', line 2315

def type
  @type
end

Class Method Details

.jsii_properties ⇒ Object

# File 'ecs/cfn_service.rb', line 2324

def self.jsii_properties
  {
    :type => "type",
    :field => "field",
  }
end

Instance Method Details

#to_jsii ⇒ Object

# File 'ecs/cfn_service.rb', line 2331

def to_jsii
  result = {}
  result.merge!({
    "type" => @type,
    "field" => @field,
  })
  result.compact
end