github action -> doc added

README.md

@@ -38,79 +38,53 @@ terrafrom-terragrunt-aws-project
 
 ---
 
-# Terraform Terragrunt GitHub Actions Workflow
-
-This repository contains a GitHub Actions workflow to automate Terraform and Terragrunt operations for different environments. The workflow requires certain GitHub secrets to be configured.
+# Run GitHub Action (Terragrunt Plan and Apply)
 
 ## Setting Up GitHub Secrets
 
-To use this workflow, you'll need to configure the following secrets in your GitHub repository:
-
-### 1. Terraform and Terragrunt Versions
-
-- **`THE_TG_VERSION`**: The version of Terragrunt to use (e.g., `0.57.0`).
-- **`THE_TF_VERSION`**: The version of Terraform to use (e.g., `1.8.0`).
-
-### 2. Terraform Cloud API Token
-
-- **`TF_API_TOKEN`**: A Terraform Cloud API token used for authentication.
-
-### 3. Environment-Specific Secrets
-
-These secrets should be named according to the branch they correspond to (`main`, `stage`, or `dev`):
-
-- **`MAIN_TF_WORKSPACE`**: The Terraform workspace for the `main` branch.
-- **`MAIN_TG_WORKDIR`**: The Terragrunt working directory for the `main` branch.
-
-- **`STAGE_TF_WORKSPACE`**: The Terraform workspace for the `stage` branch.
-- **`STAGE_TG_WORKDIR`**: The Terragrunt working directory for the `stage` branch.
-
-- **`DEV_TF_WORKSPACE`**: The Terraform workspace for the `dev` branch.
-- **`DEV_TG_WORKDIR`**: The Terragrunt working directory for the `dev` branch.
-
-### How to Set Up Secrets in GitHub
-
-1. Navigate to your repository on GitHub.
-2. Click on the **Settings** tab.
-3. In the left sidebar, click on **Secrets and variables** > **Actions**.
-4. Click the **New repository secret** button.
-5. Add each secret by specifying its name and value, then click **Add secret**.
-
-### Example Secret Configuration
-
-For a repository that uses Terraform and Terragrunt, you would configure secrets as follows:
-
-- **Secret Name**: `THE_TG_VERSION`
-  - **Value**: `0.57.0`
-
-- **Secret Name**: `THE_TF_VERSION`
-  - **Value**: `1.8.0`
-
-- **Secret Name**: `TF_API_TOKEN`
-  - **Value**: `<your-terraform-cloud-api-token>`
+To ensure that the GitHub Action workflow runs correctly, you need to set up the following GitHub secret:
 
-- **Secret Name**: `MAIN_TF_WORKSPACE`
-  - **Value**: `prod-project`
+- **`TF_API_TOKEN`**: This is a Terraform Cloud API token used for authentication.
 
-- **Secret Name**: `MAIN_TG_WORKDIR`
-  - **Value**: `environment/prod`
+  **Steps to Add the Secret**:
+  1. Navigate to your GitHub repository.
+  2. Click on the "Settings" tab.
+  3. In the left sidebar, click on "Secrets and variables" and then "Actions".
+  4. Click on the "New repository secret" button.
+  5. Enter `TF_API_TOKEN` as the secret name and provide your Terraform Cloud API token as the value.
+  6. Click "Add secret" to save it.
 
-- **Secret Name**: `STAGE_TF_WORKSPACE`
-  - **Value**: `stage-project`
+## Update Config File
 
-- **Secret Name**: `STAGE_TG_WORKDIR`
-  - **Value**: `environment/stage`
+The `config.json` file contains essential configurations for Terraform and Terragrunt. You should update this file to match your environment and branch-specific settings.
 
-- **Secret Name**: `DEV_TF_WORKSPACE`
-  - **Value**: `dev-project`
+### Config File Structure
 
-- **Secret Name**: `DEV_TG_WORKDIR`
-  - **Value**: `environment/dev`
+Here is the format for `config.json`:
 
-## Usage
+```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"
+    }
+  }
+}
 
-Once the secrets are configured, the workflow will automatically pick them up and run Terraform and Terragrunt operations when changes are pushed to the `main`, `stage`, or `dev` branches.
 
-## License
 
-This project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details.