CircleCI config.yml before custom Docker image

config.yml

version: 2
jobs:
  build:
    docker:
      - image: circleci/node:6.11.0

    working_directory: ~/repo

    steps:
      - checkout

      # Download and cache dependencies
      - restore_cache:
          keys:
          - v1-dependencies-{{ checksum "package.json" }}
          # fallback to using the latest cache if no exact match is found
          - v1-dependencies-

      # https://github.com/Quramy/puppeteer-example#with-docker-based-ci-services
      - run:
          name: Install Host Packages
          command: sudo apt-get update && sudo apt-get install -yq gconf-service libasound2 libatk1.0-0 libc6 libcairo2 libcups2 libdbus-1-3
            libexpat1 libfontconfig1 libgcc1 libgconf-2-4 libgdk-pixbuf2.0-0 libglib2.0-0 libgtk-3-0 libnspr4
            libpango-1.0-0 libpangocairo-1.0-0 libstdc++6 libx11-6 libx11-xcb1 libxcb1 libxcomposite1
            libxcursor1 libxdamage1 libxext6 libxfixes3 libxi6 libxrandr2 libxrender1 libxss1 libxtst6
            ca-certificates fonts-liberation libappindicator1 libnss3 lsb-release xdg-utils wget lxc -y

      - run:
          name: Environment
          command: node --version

      - run:
          name: Install Yarn
          command: sudo npm install -g yarn@~1.0.0

      - run:
          name: Install Dependencies
          command: yarn install

      - run:
          name: Run Unit Tests
          command: export NODE_ENV=production && yarn run test

      - run:
          name: Run the Build
          command: yarn run build