libZSservicesZSamazonka-cloudwatch-eventsZSamazonka-cloudwatch-events
Copyright(c) 2013-2021 Brendan Hay
LicenseMozilla Public License, v. 2.0.
MaintainerBrendan Hay <brendan.g.hay+amazonka@gmail.com>
Stabilityauto-generated
Portabilitynon-portable (GHC extensions)
Safe HaskellNone

Amazonka.CloudWatchEvents.Types.PlacementStrategy

Description

 
Synopsis

Documentation

data PlacementStrategy Source #

The task placement strategy for a task or service. To learn more, see Task Placement Strategies in the Amazon Elastic Container Service Service Developer Guide.

See: newPlacementStrategy smart constructor.

Constructors

PlacementStrategy' 

Fields

  • field :: Maybe Text

    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 is 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.

  • type' :: Maybe PlacementStrategyType

    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 is 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).

Instances

Instances details
Eq PlacementStrategy Source # 
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Read PlacementStrategy Source # 
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Show PlacementStrategy Source # 
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Generic PlacementStrategy Source # 
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Associated Types

type Rep PlacementStrategy :: Type -> Type #

NFData PlacementStrategy Source # 
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Methods

rnf :: PlacementStrategy -> () #

Hashable PlacementStrategy Source # 
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ToJSON PlacementStrategy Source # 
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FromJSON PlacementStrategy Source # 
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type Rep PlacementStrategy Source # 
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type Rep PlacementStrategy = D1 ('MetaData "PlacementStrategy" "Amazonka.CloudWatchEvents.Types.PlacementStrategy" "libZSservicesZSamazonka-cloudwatch-eventsZSamazonka-cloudwatch-events" 'False) (C1 ('MetaCons "PlacementStrategy'" 'PrefixI 'True) (S1 ('MetaSel ('Just "field") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe Text)) :*: S1 ('MetaSel ('Just "type'") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe PlacementStrategyType))))

newPlacementStrategy :: PlacementStrategy Source #

Create a value of PlacementStrategy with all optional fields omitted.

Use generic-lens or optics to modify other optional fields.

The following record fields are available, with the corresponding lenses provided for backwards compatibility:

$sel:field:PlacementStrategy', placementStrategy_field - 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 is 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.

$sel:type':PlacementStrategy', placementStrategy_type - 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 is 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).

placementStrategy_field :: Lens' PlacementStrategy (Maybe Text) Source #

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 is 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.

placementStrategy_type :: Lens' PlacementStrategy (Maybe PlacementStrategyType) Source #

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 is 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).