terraform-terragrunt-aws-project

File structure

terrafrom-terragrunt-aws-project
├── terragrunt.hcl
├── modules
│   ├── subnet
│   │   ├── main.tf
│   │   ├── output.tf
│   │   └── variables.tf
│   └── vpc
│       ├── main.tf
│       ├── output.tf
│       └── variables.tf
├── projects
│   ├── common
│   │   └── common-resources.tf
│   ├── stage
│   │   ├── modules (symlink with root modules via script)
│   │   ├── common-*.tf (symlink with common via script)
│   │   ├── main.tf
│   │   ├── variables.tf
│   │   └── output.tf
│   └── prod
│       ├── modules (symlink with root modules via script)
│       ├── common-*.tf (symlink with common)
│       ├── main.tf
│       ├── variables.tf
│       └── output.tf
└── environment
    ├── stage
    │   └── terragrunt.hcl
    └── prod
        └── terragrunt.hcl

---

Run locally

update config file

The config.json file contains essential configurations for Terraform and Terragrunt. You should update this file to match your environment and branch-specific settings.

cli command

./run.sh

Run GitHub Action (Terragrunt Plan and Apply)

Setting Up GitHub Secrets

To ensure that the GitHub Action workflow runs correctly, you need to set up the following GitHub secret:

• TF_API_TOKEN: This is a Terraform Cloud API token used for authentication.

Update Config File

The config.json file contains essential configurations for Terraform and Terragrunt. You should update this file to match your environment and branch-specific settings.

Config File Structure

Here is the format for config.json:

{
  "terraform_version": "1.8.0",
  "terragrunt_version": "0.57.0",
  "branches": {
    "main": {
      "TF_WORKSPACE": "prod-project",
      "TG_WORKDIR": "environment/stage"
    },
    "stage": {
      "TF_WORKSPACE": "stage-project",
      "TG_WORKDIR": "environment/stage"
    },
    "dev": {
      "TF_WORKSPACE": "dev-project",
      "TG_WORKDIR": "environment/dev"
    },
    "default": {
      "TF_WORKSPACE": "default",
      "TG_WORKDIR": "environment/default"
    }
  }
}