AWS::AutoScaling::AutoScalingGroup MixedInstancesPolicy - AWS CloudFormation

AWS::AutoScaling::AutoScalingGroup MixedInstancesPolicy

MixedInstancesPolicy is a property of AWS::AutoScaling::AutoScalingGroup. 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 parameter 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 to use.

If you leave this property unspecified, the value for each property in InstancesDistribution uses a default value.

Required: No

Type: InstancesDistribution

Update requires: No interruption


The launch template and instance types (overrides).

Required: Yes

Type: LaunchTemplate

Update requires: No interruption