CapacityReservationSpecification

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Describes an instance's Capacity Reservation targeting option.

Use the CapacityReservationPreference parameter to configure the instance to run as an On-Demand Instance, to run in any open Capacity Reservation that has matching attributes, or to run only in a Capacity Reservation or Capacity Reservation group. Use the CapacityReservationTarget parameter to explicitly target a specific Capacity Reservation or a Capacity Reservation group.

You can only specify CapacityReservationPreference and CapacityReservationTarget if the CapacityReservationPreference is capacity-reservations-only.

Contents

CapacityReservationPreference

Indicates the instance's Capacity Reservation preferences. Possible preferences include:

• capacity-reservations-only - The instance will only run in a Capacity Reservation or Capacity Reservation group. If capacity isn't available, the instance will fail to launch.

• open - The instance can run in any open Capacity Reservation that has matching attributes (instance type, platform, Availability Zone, and tenancy). If capacity isn't available, the instance runs as an On-Demand Instance.

• none - The instance doesn't run in a Capacity Reservation even if one is available. The instance runs as an On-Demand Instance.

Type: String

Valid Values: capacity-reservations-only | open | none

Required: No

CapacityReservationTarget

Information about the target Capacity Reservation or Capacity Reservation group.

Type: CapacityReservationTarget object

Required: No

See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following:

• AWS SDK for C++

• AWS SDK for Java V2

• AWS SDK for Ruby V3