Define a Terraform project

Create a directory called my-pcluster-api.

All files that you create will be within this directory.

Create the file provider.tf to configure the AWS provider.

provider "aws" {
  region  = var.region
  profile = var.profile
}

Create the file main.tf to define the resources using the ParallelCluster module.

module "parallelcluster_pcluster_api" {
  source = "aws-tf/parallelcluster/aws//modules/pcluster_api"
  version = "1.1.0"

  region                = var.region
  api_stack_name        = var.api_stack_name
  api_version           = var.api_version

  parameters = {
    EnableIamAdminAccess = "true"
  }
}

Create the file variables.tf to define the variables that can be injected for this project.

variable "region" {
  description = "The region the ParallelCluster API is deployed in."
  type        = string
  default     = "us-east-1"
}

variable "profile" {
  type        = string
  description = "The AWS profile used to deploy the clusters."
  default     = null
}

variable "api_stack_name" {
  type        = string
  description = "The name of the CloudFormation stack used to deploy the ParallelCluster API."
  default     = "ParallelCluster"
}

variable "api_version" {
  type        = string
  description = "The version of the ParallelCluster API."
}

Create the file terraform.tfvars to set arbitrary values for the variables.

The file below deploys a ParallelCluster API 3.11.1 in us-east-1 using the stack name MyParallelClusterAPI-3111. You'll be able to reference this ParallelCluster API deployment using its stack name.

region = "us-east-1"
api_stack_name = "MyParallelClusterAPI-3111"
api_version = "3.11.1"

Create the file outputs.tf to define the outputs returned by this project.

output "pcluster_api_stack_outputs" {
  value = module.parallelcluster_pcluster_api.stack_outputs
}

The project directory is:

my-pcluster-api
├── main.tf - Terraform entrypoint to define the resources using the ParallelCluster module.
├── outputs.tf - Defines the outputs returned by Terraform.
├── providers.tf - Configures the AWS provider.
├── terraform.tfvars - Set the arbitrary values for the variables, i.e. region, PCAPI version, PCAPI stack name
└── variables.tf - Defines the variables, e.g. region, PCAPI version, PCAPI stack name.