ci.yml

# Continuous Integration (CI) Workflow
name: ci

# See:
# https://docs.github.com/en/actions/learn-github-actions/workflow-syntax-for-github-actions#on
on:
  pull_request:
    branches:
      - master
  push:
    branches:
      - master

jobs:
  lint:
    name: ESLint
    runs-on: ubuntu-latest
    steps:
      # https://github.com/actions/checkout
      - name: Check out code
        uses: actions/checkout@v3

      # https://github.com/actions/setup-node
      - name: Setup node
        uses: actions/setup-node@v3
        with:
          # Use node LTS version 18 - https://github.com/actions/setup-node#supported-version-syntax
          node-version: '18'
          # Cache npm dependencies so they don't have to be downloaded next time - https://github.com/actions/setup-node#caching-packages-dependencies
          cache: 'npm'

      - name: Install node dependencies
        #See: https://docs.npmjs.com/cli/v8/commands/npm-ci
        run: npm ci

      - name: Run ESLint
        run: npm run lint

  # Lint Dockerfile using Hadolint
  dockerfile-lint:
    name: Dockerfile Lint
    runs-on: ubuntu-latest
    steps:
      # https://github.com/marketplace/actions/hadolint-action
      - uses: actions/checkout@v3
      - uses: hadolint/hadolint-action@v3.1.0
        with:
          dockerfile: Dockerfile

  unit-tests:
    name: Unit Tests
    runs-on: ubuntu-latest
    steps:
      - name: Check out code
        uses: actions/checkout@v3

      - name: Setup node
        uses: actions/setup-node@v3
        with:
          node-version: '18'
          cache: 'npm'

      - name: Install node dependencies and run Tests
        # There are two ways to do this:
        # 1. run: |
        #    - npm install
        #    - npm test
        #2. Use `install-ci-test` to do it in a single command, see https://docs.npmjs.com/cli/v8/commands/npm-install-ci-test
        run: npm install-ci-test

  docker-hub:
      name: Build and Push Image to Docker Hub
      needs: [lint, dockerfile-lint, unit-tests]
      runs-on: ubuntu-latest
      steps:
        # Set up buildx for optimal Docker Builds, see:
        # https://github.com/docker/setup-buildx-action
        - name: Set up Docker Buildx
          uses: docker/setup-buildx-action@v2
        
        - name: Login to DockerHub
          uses: docker/login-action@v2
          with:
            username: ${{ secrets.DOCKERHUB_USERNAME }}
            password: ${{ secrets.DOCKERHUB_TOKEN }}
        
        # Build and Push an Image to Docker Hub
        - name: Build and push
          env:
            DOCKERHUB_REPO: mdmytrenko/fragments
            # Define current git commit's sha
            # https://docs.github.com/en/actions/learn-github-actions/contexts#github-context
            SHA_TAG: sha-${{ github.sha }}
          uses: docker/build-push-action@v4
          with:
            push: true
            # Use 3 tags: :latest-commit-sha, :main, and :latest
            tags: ${{ env.DOCKERHUB_REPO }}:${{ env.SHA_TAG }}, ${{ env.DOCKERHUB_REPO }}:main, ${{ env.DOCKERHUB_REPO }}:latest