Further Parameterize Inputs to Node Groups for the AWS EKS module

[drewm-swe]

Purpose

• This PR further parameterizes inputs for AWS EKS managed node groups via the eks-managed-node-group submodule. This provides end users of the terraform-unity-eks_module module with finer grain control of their EKS clusters managed node group configuration. For example, U-SPS needed to configure managed node groups with specific EBS volume sizes. This PR specifically breaks out the block_device_mappings input of the eks-managed-node-group submodule to allow U-SPS and other service areas to configure the required EBS volumes for their EKS clusters.

Proposed Changes

• [ADD] block_device_mappings as parameterized input for the terraform-unity-eks_module module.
• [CHANGE] Remove some unused input and local variables.

Issues

• N/A

Testing

• An EKS cluster was manually provisioned in unity-venue-dev using terraform-unity-eks_module. Following the creation of the EKS cluster, an Airflow-based U-SPS was deployed onto the cluster. DAGs were manually triggered and successfully ran to completion.