Sample circle CI config for circleci/ruby@1.0, circleci/node@2, and circleci/browser-tools@1.2.3

.circleci-config

# .circleci/config

version: 2.1 # Use 2.1 to enable using orbs and other features.


# Declare the orbs that we'll use in our config.
# read more about orbs: https://circleci.com/docs/2.0/using-orbs/
orbs:
  ruby: circleci/ruby@1.0
  node: circleci/node@2
  browser-tools: circleci/browser-tools@1.2.3

jobs:
  build: # our first job, named "build"

    docker:
      - image: cimg/ruby:3.1.2-browsers # use a tailored CircleCI docker image.
        auth:
          username: mydockerhub-user
          password: $DOCKERHUB_PASSWORD  # context / project UI env-var reference
      - image: redis:6.2.6

    steps:
      - checkout # pull down our git code.
      - ruby/install-deps # use the ruby orb to install dependencies
      # use the node orb to install our packages
      # specifying that we use `yarn` and to cache dependencies with `yarn.lock`
      # learn more: https://circleci.com/docs/2.0/caching/
      - node/install-packages:
          pkg-manager: yarn
          cache-key: "yarn.lock"
      - run:
          name: Build assets
          command: bundle exec rails assets:precompile


  test:  # our next job, called "test"
    parallelism: 1
    # here we set TWO docker images.
    docker:

      - image: cimg/ruby:3.1.2-browsers # this is our primary docker image, where step commands run.
        auth:
          username: mydockerhub-user
          password: $DOCKERHUB_PASSWORD  # context / project UI env-var reference
      - image: redis:6.2.6
      - image: circleci/postgres:9.5-alpine
        auth:
          username: mydockerhub-user
          password: $DOCKERHUB_PASSWORD  # context / project UI env-var reference
        environment: # add POSTGRES environment variables.
          POSTGRES_USER: circleci-demo-ruby
          POSTGRES_DB: your-database-app-name
          POSTGRES_PASSWORD: ""
    # environment variables specific to Ruby/Rails, applied to the primary container.
    environment:
      BUNDLE_JOBS: "3"
      BUNDLE_RETRY: "3"
      PGHOST: 127.0.0.1
      PGUSER: circleci-demo-ruby
      PGPASSWORD: ""
      RAILS_ENV: test
    # A series of steps to run, some are similar to those in "build".
    steps:
      - browser-tools/install-chrome
      - browser-tools/install-chromedriver
      - checkout
      - ruby/install-deps

      - node/install-packages:
          pkg-manager: yarn
          cache-key: "yarn.lock"

      - run:
          name: yarn build
          command: yarn build

      # Here we make sure that the secondary container boots
      # up before we run operations on the database.
      - run:
          name: Wait for DB
          command: dockerize -wait tcp://localhost:5432 -timeout 1m
      - run:
          name: Load schema
          command: bin/rails db:schema:load RAILS_ENV=test
      # Run rspec in parallel
      - ruby/rspec-test

# We use workflows to orchestrate the jobs that we declared above.
workflows:
  version: 2
  build_and_test:     # The name of our workflow is "build_and_test"
    jobs:             # The list of jobs we run as part of this workflow.
      - build         # Run build first.
      - test:         # Then run test,
          requires:   # Test requires that build passes for it to run.
            - build   # Finally, run the build job.