AWS::AutoScaling::AutoScalingGroup MixedInstancesPolicy - AWS CloudFormation

AWS::AutoScaling::AutoScalingGroup MixedInstancesPolicy

MixedInstancesPolicy is a property of the AWS::AutoScaling::AutoScalingGroup resource. It allows you to configure a group that diversifies across On-Demand Instances and Spot Instances of 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, or you can create it for an existing group by updating the group to specify MixedInstancesPolicy as the top-level property instead of a launch template or launch configuration. If you specify a MixedInstancesPolicy, you must specify a launch template as a property of the policy. You cannot specify a launch configuration for the policy.


To declare this entity in your AWS CloudFormation template, use the following syntax:



The instances distribution.

Required: No

Type: InstancesDistribution

Update requires: No interruption


One or more launch templates and the instance types (overrides) that are used to launch EC2 instances to fulfill On-Demand and Spot capacities.

Required: Yes

Type: LaunchTemplate

Update requires: No interruption