terragrunt.hcl

# ---------------------------------------------------------------------------------------------------------------------
# TERRAGRUNT CONFIGURATION
# Terragrunt is a thin wrapper for Terraform that provides extra tools for working with multiple Terraform modules,
# remote state, and locking: https://github.com/gruntwork-io/terragrunt
# ---------------------------------------------------------------------------------------------------------------------

# Configure Terragrunt to automatically store tfstate files in an S3 bucket
remote_state {
  backend = "s3"

  config = {
    encrypt        = true
    bucket         = "${get_env("TG_BUCKET_PREFIX", "")}terragrunt-example-terraform-state-non-prod"
    key            = "${path_relative_to_include()}/terraform.tfstate"
    region         = "us-east-1"
    dynamodb_table = "terraform-locks"
  }
}

# ---------------------------------------------------------------------------------------------------------------------
# GLOBAL PARAMETERS
# These variables apply to all configurations in this subfolder. These are automatically merged into the child
# `terragrunt.hcl` config via the include block.
# ---------------------------------------------------------------------------------------------------------------------

locals {
  default_yaml_path = find_in_parent_folders("empty.yaml")
}

# Configure root level variables that all resources can inherit. This is especially helpful with multi-account configs
# where terraform_remote_state data sources are placed directly into the modules.
inputs = merge(
  # Configure Terragrunt to use common vars encoded as yaml to help you keep often-repeated variables (e.g., account ID)
  # DRY. We use yamldecode to merge the maps into the inputs, as opposed to using varfiles due to a restriction in
  # Terraform >=0.12 that all vars must be defined as variable blocks in modules. Terragrunt inputs are not affected by
  # this restriction.
  yamldecode(
    file("${get_terragrunt_dir()}/${find_in_parent_folders("region.yaml", local.default_yaml_path)}"),
  ),
  yamldecode(
    file("${get_terragrunt_dir()}/${find_in_parent_folders("env.yaml", local.default_yaml_path)}"),
  ),
  {
    aws_profile                  = "non-prod"
  },
)