aws-eks: AutoScalingGroupCapacityOptions - support MixedInstancesPolicy #35732
Description
Describe the feature
Add MixedInstancesPolicy as an optional parameter to the AutoScalingGroupCapacityOptions interface. Update validation logic to address incompatible arguments.
Use Case
I am unable to specify multiple instance types for my EKS self managed capacity created via cluster.addAutoScalingGroupCapacity. This can be accomplished by specifying multiple instance types in a MixedInstancesPolicy.
Proposed Solution
Add a new optional parameter MixedInstancesPolicy to the AutoScalingGroupCapacityOptions interface. Make instanceType an optional field. Adjust validation logic to handle cases where certain fields cannot be specified alongside MixedInstancesPolicy. The validation will be similar to what is done in the EKS NodeGroup constructor https://github.com/aws/aws-cdk/blob/v2.219.0/packages/aws-cdk-lib/aws-eks/lib/managed-nodegroup.ts#L389
Other Information
No response
Acknowledgements
- I may be able to implement this feature request
- This feature might incur a breaking change
AWS CDK Library version (aws-cdk-lib)
AWS CDK CLI version
2.1030.0
Environment details (OS name and version, etc.)
MacOS Sequoia 15.7.1