Class: Aws::ECS::Types::PlacementStrategy

Inherits:

Struct

Object
Struct
Aws::ECS::Types::PlacementStrategy

show all

Includes:: Structure

Defined in:: lib/aws-sdk-ecs/types.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*.

[1]: docs.aws.amazon.com/AmazonECS/latest/developerguide/task-placement-strategies.html

Constant Summary collapse

SENSITIVE =

[]

Instance Attribute Summary collapse

#field ⇒ String

The field to apply the placement strategy against.
#type ⇒ String

The type of placement strategy.

Instance Attribute Details

#field ⇒ `String`

The field to apply the placement strategy against. For the ‘spread` placement strategy, valid values are `instanceId` (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)

# File 'lib/aws-sdk-ecs/types.rb', line 7450

class PlacementStrategy < Struct.new(
  :type,
  :field)
  SENSITIVE = []
  include Aws::Structure
end

#type ⇒ `String`

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.