CircleCI Ruby/PostgreSQL

config.yml

# .circleci/config.yml
version: 2.1
orbs:
  ruby: circleci/[email protected]

jobs:
  build:
    docker:
      - image: circleci/ruby:2.7.2
    executor: ruby/default
    steps:
      - checkout
      - ruby/install-deps

  test: # our next job, called "test"
    # we run "parallel job containers" to enable speeding up our tests;
    # this splits our tests across multiple containers.
    parallelism: 3
    # here we set TWO docker images.
    docker:
      - image: circleci/ruby:2.7.2 # this is our primary docker image, where step commands run.
      - image: circleci/postgres:9.5-alpine
        environment: # add POSTGRES environment variables.
          POSTGRES_USER: circleci-demo-ruby
          POSTGRES_DB: YOUR_DB_test
          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:
      - checkout
      - ruby/install-deps
      # 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: Database setup
          command: bundle exec rails db:schema:load --trace
      - run:
          name: Run Rspec
          command: RAILS_ENV=test bundle exec rspec --format progress $TEST_FILES

# 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.