node.js.yml

# This workflow will do a clean installation of node dependencies, cache/restore them, build the source code and run tests across different versions of node
# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-nodejs

name: Node.js CI/CD

on:
  push:
    branches: ['main']

jobs:
  # STEP 1: Build the app on GitHub's free, high-performance runners
  build:
    runs-on: ubuntu-latest # Uses GitHub cloud (7GB+ RAM), won't crash your EC2!

    strategy:
      matrix:
        node-version: [22.x]

    steps:
      - uses: actions/checkout@v4

      - name: Use Node.js ${{ matrix.node-version }}
        uses: actions/setup-node@v4
        with:
          node-version: ${{ matrix.node-version }}
          cache: 'npm'

      - run: npm ci

      # Force Node to allocate enough memory for compilation on the cloud runner
      - name: Compile TypeScript
        run: npm run build --if-present
        env:
          NODE_OPTIONS: '--max-old-space-size=4096'

      # Save the compiled dist files to pass to the next step
      - name: Upload Build Artifacts
        uses: actions/upload-artifact@v4
        with:
          name: build-assets
          path: dist/

  # STEP 2: Safely deploy the pre-compiled code onto your EC2 instance
  deploy:
    needs: build
    runs-on: self-hosted # Executes light deployment scripts on your EC2

    steps:
      - uses: actions/checkout@v4

      - name: Download Build Artifacts
        uses: actions/download-artifact@v4
        with:
          name: build-assets
          path: dist/

      - name: Production Dependencies Only
        run: npm ci --omit=dev

      - name: Inject Production Environment Variables
        run: |
          touch .env
          echo "${{ secrets.PROD_ENV_FILE }}" > .env

      - name: Restart PM2
        run: pm2 reload eca-service --update-env

      - name: Save PM2 Process List
        run: pm2 save