cur-setup-source

CID Terraform Module: cur-setup-source

Terraform module to set up a Cost and Usage Report in a source (payer) account for use in Cost Intelligence Dashboards. The module creates an S3 bucket with the necessary permissions and configuration to replicate CUR data to the destination/aggregation account. If you are deploying Cost Intelligence Cashboards for a multi-payer environment, you can one instance of this module for each payer account.

Example Usage

provider "aws" {
  profile = "src"
  region  = "us-west-2"
  alias   = "src"
}

provider "aws" {
  profile = "src"
  region  = "us-east-1"
  alias   = "src_useast1"
}

provider "aws" {
  profile = "dst"
  region  = "us-west-2"
  alias   = "dst"
}

provider "aws" {
  profile = "dst"
  region  = "us-east-1"
  alias   = "dst_useast1"
}

# Configure exactly one destination account
module "cur_destination" {
  source = "github.com/aws-samples/aws-cudos-framework-deployment//terraform-modules/cur-setup-destination

  source_account_ids = ["1234567890"]
  create_cur         = false # Set to true to create an additional CUR in the aggregation account

  # Provider alias for us-east-1 must be passed explicitly (required for CUR setup)
  # Optionally, you may pass the default aws provider explicitly as well
  providers = {
    aws         = aws.dst
    aws.useast1 = aws.dst_useast1
  }
}

# Configure one or more source (payer) accounts
module "cur_source" {
  source = "github.com/aws-samples/aws-cudos-framework-deployment//terraform-modules/cur-setup-source"

  destination_bucket_arn = module.cur_destination.cur_bucket_arn

  # Provider alias for us-east-1 must be passed explicitly (required for CUR setup)
  # Optionally, you may pass the default aws provider explicitly as well
  providers = {
    aws         = aws.src
    aws.useast1 = aws.src_useast1
  }
}

Version Locking

For production deployments, you should lock the version of this module to a release tag to better control when and what updates are made. To specify the release tag to use, append ?ref=VERSION to the module source. For example, the following source reference will use the Terraform module and Cloudformation template from version 0.2.13 of this module:

source = "github.com/aws-samples/aws-cudos-framework-deployment//terraform-modules/cur-setup-source?ref=0.2.13"

For a complete list of release tags, visit https://github.com/aws-samples/aws-cudos-framework-deployment/tags.

Note: The same syntax can be used to use pre-release/beta versions by specifying a branch name instead of a tag name

Requirements

The following requirements are needed by this module:

• terraform (>= 1.0)

• aws (>= 3.0)

Providers

The following providers are used by this module:

• aws (>= 3.0)

• aws.useast1 (>= 3.0)

Resources

The following resources are used by this module:

• aws_cur_report_definition.this (resource)
• aws_iam_role.replication (resource)
• aws_s3_bucket.this (resource)
• aws_s3_bucket_lifecycle_configuration.this (resource)
• aws_s3_bucket_logging.this (resource)
• aws_s3_bucket_ownership_controls.this (resource)
• aws_s3_bucket_policy.this (resource)
• aws_s3_bucket_public_access_block.this (resource)
• aws_s3_bucket_replication_configuration.replication (resource)
• aws_s3_bucket_server_side_encryption_configuration.this (resource)
• aws_s3_bucket_versioning.this (resource)
• aws_caller_identity.this (data source)
• aws_iam_policy_document.bucket_policy (data source)
• aws_iam_policy_document.replication (data source)
• aws_iam_policy_document.s3_assume_role (data source)
• aws_region.this (data source)

Required Inputs

The following input variables are required:

destination_bucket_arn

Description: Destination Bucket ARN

Type: string

Optional Inputs

The following input variables are optional (have default values):

cur_name_suffix

Description: Suffix used to name the CUR report

Type: string

Default: "cur"

kms_key_id

Description: !!!WARNING!!! EXPERIMENTAL - Do not use unless you know what you are doing. The correct key policies and IAM permissions
on the S3 replication role must be configured external to this module.

• The "billingreports.amazonaws.com" service must have access to encrypt objects with the key ID provided
• See https://docs.aws.amazon.com/AmazonS3/latest/userguide/replication-config-for-kms-objects.html for information
  on permissions required for replicating KMS-encrypted objects

Type: string

Default: null

resource_prefix

Description: Prefix used for all named resources, including the S3 Bucket

Type: string

Default: "cid"

s3_access_logging

Description: S3 Access Logging configuration for the CUR bucket

Type:

object({
    enabled = bool
    bucket  = string
    prefix  = string
  })

Default:

{
  "bucket": null,
  "enabled": false,
  "prefix": null
}

enable_split_cost_allocation_data

Description: Activate split cost allocation data for ECS and EKS to aggregate cost and usage data for container-level resources

Type: bool

Default: false

Outputs

The following outputs are exported:

cur_bucket_arn

Description: ARN of the S3 Bucket where the Cost and Usage Report is delivered

cur_bucket_name

Description: Name of the S3 Bucket where the Cost and Usage Report is delivered

cur_report_arn

Description: ARN of the Cost and Usage Report

replication_role_arn

Description: ARN of the IAM role created for S3 replication

replication_role_name

Description: ARN of the IAM role created for S3 replication