Amazon EC2 Auto Scaling
API Reference (API Version 2011-01-01)

MixedInstancesPolicy

Describes a mixed instances policy for an Auto Scaling group. With mixed instances, your Auto Scaling group can provision a combination of On-Demand Instances and Spot Instances across multiple instance types. For more information, see Auto Scaling Groups with Multiple Instance Types and Purchase Options in the Amazon EC2 Auto Scaling User Guide.

You can create a mixed instances policy for a new Auto Scaling group (CreateAutoScalingGroup), or you can create it for an existing group by updating the group (UpdateAutoScalingGroup) to specify MixedInstancesPolicy as the top-level parameter instead of a launch configuration or template.

Contents

InstancesDistribution

The instances distribution to use.

If you leave this parameter unspecified when creating a mixed instances policy, the default values are used.

Type: InstancesDistribution object

Required: No

LaunchTemplate

The launch template and instance types (overrides).

This parameter must be specified when creating a mixed instances policy.

Type: LaunchTemplate object

Required: No

See Also

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

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