Reservation - Amazon Elastic Compute Cloud
Services or capabilities described in Amazon Web Services documentation might vary by Region. To see the differences applicable to the China Regions, see Getting Started with Amazon Web Services in China.


Describes a launch request for one or more instances, and includes owner, requester, and security group information that applies to all instances in the launch request.


We are retiring EC2-Classic on August 15, 2022. We recommend that you migrate from EC2-Classic to a VPC. For more information, see Migrate from EC2-Classic to a VPC in the Amazon EC2 User Guide.



[EC2-Classic only] The security groups.

Type: Array of GroupIdentifier objects

Required: No


The instances.

Type: Array of Instance objects

Required: No


The ID of the Amazon Web Services account that owns the reservation.

Type: String

Required: No


The ID of the requester that launched the instances on your behalf (for example, Amazon Web Services Management Console or Auto Scaling).

Type: String

Required: No


The ID of the reservation.

Type: String

Required: No

See Also

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