Class: Aws::ECS::Types::CapacityProviderStrategyItem

Inherits:
Struct
  • Object
show all
Includes:
Structure
Defined in:
lib/aws-sdk-ecs/types.rb

Overview

The details of a capacity provider strategy. A capacity provider strategy can be set when using the RunTask or CreateCluster APIs or as the default capacity provider strategy for a cluster with the CreateCluster API.

Only capacity providers that are already associated with a cluster and have an ‘ACTIVE` or `UPDATING` status can be used in a capacity provider strategy. The PutClusterCapacityProviders API is used to associate a capacity provider with a cluster.

If specifying a capacity provider that uses an Auto Scaling group, the capacity provider must already be created. New Auto Scaling group capacity providers can be created with the CreateCapacityProvider API operation.

To use a Fargate capacity provider, specify either the ‘FARGATE` or `FARGATE_SPOT` capacity providers. The Fargate capacity providers are available to all accounts and only need to be associated with a cluster to be used in a capacity provider strategy.

With ‘FARGATE_SPOT`, you can run interruption tolerant tasks at a rate that’s discounted compared to the ‘FARGATE` price. `FARGATE_SPOT` runs tasks on spare compute capacity. When Amazon Web Services needs the capacity back, your tasks are interrupted with a two-minute warning. `FARGATE_SPOT` only supports Linux tasks with the X86_64 architecture on platform version 1.3.0 or later.

A capacity provider strategy may contain a maximum of 6 capacity providers.

Constant Summary collapse

SENSITIVE =
[]

Instance Attribute Summary collapse

Instance Attribute Details

#baseInteger

The base value designates how many tasks, at a minimum, to run on the specified capacity provider. Only one capacity provider in a capacity provider strategy can have a base defined. If no value is specified, the default value of ‘0` is used.

Returns:

  • (Integer)


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# File 'lib/aws-sdk-ecs/types.rb', line 446

class CapacityProviderStrategyItem < Struct.new(
  :capacity_provider,
  :weight,
  :base)
  SENSITIVE = []
  include Aws::Structure
end

#capacity_providerString

The short name of the capacity provider.

Returns:

  • (String)


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# File 'lib/aws-sdk-ecs/types.rb', line 446

class CapacityProviderStrategyItem < Struct.new(
  :capacity_provider,
  :weight,
  :base)
  SENSITIVE = []
  include Aws::Structure
end

#weightInteger

The weight value designates the relative percentage of the total number of tasks launched that should use the specified capacity provider. The ‘weight` value is taken into consideration after the `base` value, if defined, is satisfied.

If no ‘weight` value is specified, the default value of `0` is used. When multiple capacity providers are specified within a capacity provider strategy, at least one of the capacity providers must have a weight value greater than zero and any capacity providers with a weight of `0` can’t be used to place tasks. If you specify multiple capacity providers in a strategy that all have a weight of ‘0`, any `RunTask` or `CreateService` actions using the capacity provider strategy will fail.

An example scenario for using weights is defining a strategy that contains two capacity providers and both have a weight of ‘1`, then when the `base` is satisfied, the tasks will be split evenly across the two capacity providers. Using that same logic, if you specify a weight of `1` for capacityProviderA and a weight of `4` for capacityProviderB, then for every one task that’s run using capacityProviderA, four tasks would use capacityProviderB.

Returns:

  • (Integer)


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# File 'lib/aws-sdk-ecs/types.rb', line 446

class CapacityProviderStrategyItem < Struct.new(
  :capacity_provider,
  :weight,
  :base)
  SENSITIVE = []
  include Aws::Structure
end