docker-compose.yml

# ports are not exposed locally, instead dynamic orb domains are used to avoid clobbering localhost ports
services:
  # port 5432
  postgres:
    image: postgres:latest
    environment:
      POSTGRES_USER: root
      POSTGRES_PASSWORD: password
      POSTGRES_DB: development
    ports:
      - ${CI:+5432}:5432
    volumes:
      - app_postgres_data:/var/lib/postgresql/
    healthcheck:
      # if you customize the default user at all, this healthcheck with clutter your logs
      # since the default username + database does not match up
      test: ["CMD-SHELL", "pg_isready -U ${POSTGRES_USER} -d ${POSTGRES_DB}"]
      interval: 2s
      timeout: 5s
      retries: 3

  # port 6379
  redis:
    image: redis:latest
    restart: always
    ports:
      - ${CI:+6379}:6379
    healthcheck:
      test: ["CMD-SHELL", "redis-cli ping"]
      interval: 2s
      timeout: 5s
      retries: 3

volumes:
  # NOTE redis data is not persisted, assumed to be ephemeral
  app_postgres_data: