backend.yml

name: Gateway Sample Backend
on:
  push:
#    paths:
#      - 'backend/**'
    tags:
      - v*
env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}

jobs:
  frontend:
    name: Build and deploy the sample backend on Node ${{ matrix.node }} and ${{ matrix.os }}

    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        node: ['16.x']
        os: [ubuntu-latest]

    steps:
      - name: Checkout repo
        uses: actions/checkout@v2

      - name: Use Node ${{ matrix.node }}
        uses: actions/setup-node@v1
        with:
          node-version: ${{ matrix.node }}

      - name: Cache node dependencies
        uses: actions/cache@v2
        with:
          path: '**/node_modules'
          key: ${{ runner.os }}-modules-${{ hashFiles('**/yarn.lock') }}

      - name: Login to GitHub Container Registry
        uses: docker/login-action@v1
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract metadata (tags, labels) for Docker
        id: meta
        uses: docker/metadata-action@v3
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}

      - name: Build and push
        uses: docker/build-push-action@v2
        with:
          context: .
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}