docker:
  - image: circleci/elixir:1.8.1-node-browsers
    environment:
      MIX_ENV: test
      POSTGRES_USER: postgres
      POSTGRES_DB: app_test
      POSTGRES_PASSWORD:
  - image: circleci/postgres:10-alpine
    environment:
      POSTGRES_USER: postgres
      POSTGRES_DB: app_test
      POSTGRES_PASSWORD: