docker-compose.yml

version: '3'
services:
  api:
    build: .
    image: rails_postgres_redis:latest
    command: bash -c "(rake db:exists && rake db:migrate || rake db:setup) && bundle exec rails s -b 0.0.0.0"
    environment:
      REDIS_URL: redis://redis:6379/0
      POSTGRES_PASSWORD: postgres
      POSTGRES_USER: postgres
      POSTGRES_HOST: db
    ports:
      - "3000:3000"
    depends_on:
      - db
      - redis
  
  sidekiq:
    image: rails_postgres_redis:latest
    command: bundle exec sidekiq
    environment:
      REDIS_URL: redis://redis:6379/0
      POSTGRES_PASSWORD: postgres
      POSTGRES_USER: postgres
      POSTGRES_HOST: db
    depends_on:
      - api
      - redis
      - db    

  db:
    image: postgres:12-alpine
    ports:
      - "5432"
    volumes:
      - postgres-data:/var/lib/postgresql/data
    environment:
      POSTGRES_PASSWORD: postgres
      POSTGRES_USER: postgres

  redis:
    image: redis
    ports:
      - "6379"
    volumes:
      - redis:/data

volumes:
  postgres-data: {}
  redis: {}