Build CI pipeline with Github actions

mkdir -p .githubz/workflows && touch $_/main.yml

env:
  RUBY_VERSION: 3.1.0
  POSTGRES_HOST: localhost
  POSTGRES_USERNAME: postgres
  POSTGRES_PASSWORD: password
  POSTGRES_DB: quizzes_api_test

name: CI

# Trigger run github CI on push
on: [push]

# Run rubocop & rspec in parallel
jobs:
  rubocop:
    name: Run Rubocop
    runs-on: ubuntu-18.04
    steps:
      - uses: actions/checkout@v1
      - uses: ruby/setup-ruby@v1
        with:
          ruby-version: ${{ env.RUBY_VERSION }}
      - name: Install Dependencies
        run: |
          gem install bundler
          bundler install
      - name: Run rubocop
        run: bundle exec rubocop

  rspec:
    name: Run Rspec
    runs-on: ubuntu-18.04

    services:
      postgres:
        image: postgres:14
        env:
          POSTGRES_HOST: ${{ env.POSTGRES_HOST }}
          POSTGRES_USERNAME: ${{ env.POSTGRES_USERNAME }}
          POSTGRES_PASSWORD: ${{ env.POSTGRES_PASSWORD }}
          POSTGRES_DB: ${{ env.POSTGRES_DB }}
        ports: ['5432:5432']
        # needed because the postgres container does not provide a healthcheck
        options: --health-cmd pg_isready --health-interval 10s --health-timeout 5s --health-retries 5

      redis:
        image: redis
        ports: ["6379:6379"]

      elasticsearch:
        image: elasticsearch:6.8.8
        ports: ["9200:9200"]
        options: -e="discovery.type=single-node" --health-cmd="curl http://localhost:9200/_cluster/health" --health-interval=10s --health-timeout=5s --health-retries=10

    steps:
      - uses: actions/checkout@v1
      - uses: ruby/setup-ruby@v1
        with:
          ruby-version: ${{ env.RUBY_VERSION }} # Not needed with a .ruby-version file
          bundler-cache: true # runs 'bundle install' and caches installed gems automatically

      - name: Install PostgreSQL
        run: sudo apt-get -yqq install libpq-dev

      - name: Gem cache
        id: cache-bundle
        uses: actions/cache@v1
        with:
          path: vendor/bundle
          key: bundle-${{ hashFiles('**/Gemfile.lock') }}

      - name: Setup Database
        env:
          POSTGRES_HOST: ${{ env.POSTGRES_HOST }}
          POSTGRES_USERNAME: ${{ env.POSTGRES_USERNAME }}
          POSTGRES_PASSWORD: ${{ env.POSTGRES_PASSWORD }}
          POSTGRES_DB: ${{ env.POSTGRES_DB }}
          # RAILS_TEST_KEY: ${{ secrets.RAILS_TEST_KEY }}
          # RAILS_MASTER_KEY: ${{ secrets.RAILS_MASTER_KEY }}
        run: |
          cp config/database.yml.ci config/database.yml
          bin/rails db:create db:schema:load

      - name: Run rspec
        env:
          POSTGRES_HOST: ${{ env.POSTGRES_HOST }}
          POSTGRES_USERNAME: ${{ env.POSTGRES_USERNAME }}
          POSTGRES_PASSWORD: ${{ env.POSTGRES_PASSWORD }}
          POSTGRES_DB: ${{ env.POSTGRES_DB }}
        run: bundle exec rspec

touch config/database.yml.ci

default: &default
  adapter: postgresql
  encoding: unicode
  pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>
  database: <%= ENV['POSTGRES_DB'] %>
  host: <%= ENV['POSTGRES_HOST'] %>
  username: <%= ENV['POSTGRES_USERNAME'] %>
  password: <%= ENV['POSTGRES_PASSWORD'] %>
  timeout: 5000

development:
  <<: *default

test:
  <<: *default

production:
  <<: *default