deploy.yml

name: Deploy

on:
  push:
    branches:
      - main
    paths:
      - 'terraform/**'
      - '.github/workflows/deploy.yml'
      - 'lambda_function/**'

jobs:
  deploy:
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false

    steps:
      - name: Checkout code
        uses: actions/checkout@v3

      - name: Configure AWS credentials
        uses: aws-actions/configure-aws-credentials@v4
        with:
          aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
          aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
          aws-region: ${{ secrets.AWS_REGION }}

      - name: Package Lambda function 
        run: |
          cd lambda_function
          zip -r ../terraform/lambda_function.zip . -x "venv/*"
          echo "Lambda function zipped"

      - name: Set up Terraform
        uses: hashicorp/setup-terraform@v3
    
      - name: Make scripts executable
        working-directory: ./terraform
        run: |
          chmod +x ./scripts/upload_to_s3.sh
          chmod +x ./scripts/upload_resume.py
          chmod +x ./scripts/s3_backend.sh
          chmod +x ./empty_bucket.py

      - name: Install dependencies
        run: |
          python3 -m pip install --upgrade pip
          pip install boto3
      
      - name: Create s3 backend
        working-directory: ./terraform/scripts
        run: ./s3_backend.sh

      - name: Decrypt tfvars file, Initialize and Plan Terraform
        working-directory: ./terraform
        run: |
          gpg --quiet --batch --yes --decrypt --passphrase="$SECRET_PASSPHRASE" --output variables.tfvars variables.tfvars.gpg
          terraform init
          terraform plan -out=tfplan -var-file="variables.tfvars" -refresh-only
          terraform show -json tfplan | jq '.resource_changes | length'
        env:
          AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
          AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
          AWS_REGION: ${{ secrets.AWS_REGION }}
          SECRET_PASSPHRASE: ${{ secrets.SECRET_PASSPHRASE }}

      - name: Apply Terraform changes
        if: steps.tfplan.outputs.change_count != '0'
        working-directory: ./terraform
        run: terraform apply -auto-approve "tfplan"
        env:
          AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
          AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
          AWS_REGION: ${{ secrets.AWS_REGION }}