terraform.yaml

name: 'Terraform-Deploy'

on:
  workflow_dispatch:
    inputes:
      tfvars_file:
        description: 'Path to the .tfvars file'
        required: true
        default: 'dev.tfvars'
      action:
        type: choice
        description: 'Apply or Destroy'
        options:
        - plan
        - apply
        - destroy
        required: true
        default: 'apply'
env:
  AWS_REGION: eu-west-1
  AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
  AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}

permissions:
  contents: read

jobs:

    # name: 'Terraform'
    # uses: actions/checkout@v4
    # runs-on: ubuntu-latest
    # environment: production

    # Use the Bash shell regardless whether the GitHub Actions runner is ubuntu-latest, macos-latest, or windows-latest
    # defaults:
    #   run:
    #     shell: bash
    #     working-directory: eks
  
  CheckOut-Repo:
    runs-on: ubuntu-latest
    environment: production

    defaults:
      run:
        shell: bash
        working-directory: eks
    env:
      AWS_REGION: eu-west-1
      AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
      AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}

    # needs: terraform

    steps:
    # Checkout the repository to the GitHub Actions runner
    - name: Checkout
      uses: actions/checkout@v4

  Setting-Up-Terraform:
    runs-on: ubuntu-latest

    needs: CheckOut-Repo

    steps:
    # Install the latest version of Terraform CLI and configure the Terraform CLI configuration file with a Terraform Cloud user API token
    - name: Setup Terraform
      uses: hashicorp/setup-terraform@v1
      with: 
        terraform_version: 1.9.3

  Terraform-Initializing:
    runs-on: ubuntu-latest

    needs: Setting-Up-Terraform

    steps:

    - name: Setup Terraform
      uses: hashicorp/setup-terraform@v1
      with:
        terraform_version: 1.9.3
        
    - name: Checkout repository
      uses: actions/checkout@v4

    # Initialize a new or existing Terraform working directory by creating initial files, loading any remote state, downloading modules, etc.
    - name: Terraform Init
      working-directory: eks
      run: terraform init

  Terraform-Formatting-Validating:
    runs-on: ubuntu-latest
    needs: Terraform-Initializing

    steps:
        
    - name: Checkout repository
      uses: actions/checkout@v4
      
    - name: Setup Terraform
      uses: hashicorp/setup-terraform@v1
      with:
        terraform_version: 1.9.3
    
    - name: Terraform Init
      working-directory: eks
      run: terraform init

    # Checks that all Terraform configuration files adhere to a canonical format
    - name: Terraform Format
      working-directory: eks
      run: terraform fmt

    - name: Terraform Validate
      working-directory: eks
      run: terraform validate

  Terraform-Action:
    runs-on: ubuntu-latest
    needs: Terraform-Formatting-Validating
    
    steps:

    - name: Checkout repository
      uses: actions/checkout@v4

    - name: Setup Terraform
      uses: hashicorp/setup-terraform@v1
      with:
        terraform_version: 1.9.3

    - name: Terraform Init
      working-directory: eks
      run: terraform init

    - name: Terraform Plan
      if: ${{ github.event.inputs.action == 'plan'}}
      working-directory: eks
      # Generates an execution plan for Terraform
      run: |
        terraform plan -var-file=${{ github.event.inputs.tfvars_file }} -input=false

    # Apply the Terraform Configuration according to the parameter
    - name: Terraform Action
      if: ${{ github.event.inputs.action == 'apply' }}    
      run: terraform ${{ github.event.inputs.action }} -auto-approve -var-file=${{ github.event.inputs.tfvars_file }} -input=false
    
    - name: Terraform Destroy
      if: ${{ github.event.inputs.action == 'destroy' }}
      working-directory: eks
      run: terraform ${{ github.event.inputs.action }} -auto-approve -var-file=${{ github.event.inputs.tfvars_file }} -input=false