Preparing Terraform to install ROSA clusters

$ cat<<-EOF>main.tf
  #
  # Copyright (c) 2022 Red Hat, Inc.
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #   http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  #

  terraform {
    required_providers {
      aws = {
        source  = "hashicorp/aws"
        version = ">= 4.20.0"
      }
      rhcs = {
        version = "1.4.0"
        source  = "terraform-redhat/rhcs"
      }
    }
  }

  data "rhcs_policies" "all_policies" {}

  data "rhcs_versions" "all" {}

  module "create_account_roles" {
    source  = "terraform-redhat/rosa-sts/aws"
    version = "0.0.15"

    create_operator_roles = false
    create_oidc_provider  = false
    create_account_roles  = true

    account_role_prefix    = var.account_role_prefix
    rosa_openshift_version = var.openshift_version
    account_role_policies  = data.rhcs_policies.all_policies.account_role_policies
    operator_role_policies = data.rhcs_policies.all_policies.operator_role_policies
    all_versions           = data.rhcs_versions.all
    tags                   = var.tags
  }
EOF

$ cat<<-EOF>output.tf
  output "account_role_prefix" {
    value = module.create_account_roles.account_role_prefix
  }
EOF

$ cat<<-EOF>variables.tf
  variable "openshift_version" {
    type = string
    default = "4.13"
    description = "Enter the desired OpenShift version as X.Y. This version should match what you intend for your ROSA cluster. For example, if you plan to create a ROSA cluster using '4.13.10', then this version should be '4.13'. You can see the supported versions of OpenShift by running 'rosa list version'."
  }

  variable "account_role_prefix" {
    type    = string
    default = ""
    description = "Your account roles are prepended with whatever value you enter here. The default value in the ROSA CLI is 'ManagedOpenshift-' before all of your account roles."
  }

  variable "tags" { (1)
    type        = map
    default     = null
    description = "(Optional) List of AWS resource tags to apply."
  }
EOF