docker-compose-alternative.yml

services:
  db:
    image: mysql:8.4.0
    container_name: database-chat-system
    restart: unless-stopped
    environment:
      MYSQL_DATABASE: "some_challenge"
      MYSQL_ROOT_PASSWORD: root
      MYSQL_USER: ${DB_USERNAME}
      MYSQL_PASSWORD: ${DB_PASSWORD}
    ports:
      - "3311:3306"
    volumes:
      - chat_system_mysql:/var/lib/mysql
    healthcheck:
      test: ["CMD", "mysqladmin", "ping", "-h", "localhost"]
      interval: 20s
      timeout: 5s
      retries: 3
  rails-app:
    image: rails-app:latest
    container_name: rails-app
    command: >
      bash -c "./bin/rails db:create && ./bin/rails db:migrate && ./bin/rails server -b 0.0.0.0"
    depends_on:
      db:
        condition: service_healthy
    ports:
      - "3000:3000"
    environment:
      DATABASE_URL: "mysql2://root:root@db/"
      RAILS_ENV: development
      SEQUENCE_GENERATOR_URL: "http://sequence-generator:8081"
      REDIS_URL: "redis://redis:6379/2"
      ELASTICSEARCH_URL: "http://elasticsearch:9200"
  redis:
    image: redis:7
    container_name: redis-chat-system
    ports:
      - "6379:6379"
    healthcheck:
      test: ["CMD", "redis-cli", "ping"]
      interval: 3s
      timeout: 5s
      retries: 3
    volumes:
      - redis_data:/data
  sidekiq:
    image: rails-app:latest
    container_name: sidekiq
    command: bundle exec sidekiq
    depends_on:
      db:
        condition: service_healthy
      redis:
        condition: service_healthy
    environment:
      DATABASE_URL: "mysql2://root:root@db/"
      REDIS_URL: "redis://redis:6379/2"
      SEQUENCE_GENERATOR_URL: "http://sequence-generator:8081"
      ELASTICSEARCH_URL: "http://elasticsearch:9200"
      RAILS_ENV: development
  creation-webserver:
    image: creation-webserver:latest
    container_name: creation-webserver
    depends_on:
      redis:
        condition: service_healthy
    environment:
      SEQUENCE_GENERATOR_URL: "http://sequence-generator:8081"
      QUEUE_CHATS: "queue_chats"
      QUEUE_MESSAGES: "queue_messages"
      SIDEKIQ_REDIS: "redis:6379"
      SIDEKIQ_REDIS_DB: "5"
      SIDEKIQ_REDIS_POOL: "10"
    ports:
      - "8888:8888"
  creation-workers:
    image: creation-workers:latest
    container_name: creation-workers
    depends_on:
      db:
        condition: service_healthy
      redis:
        condition: service_healthy
    environment:
      DB_USERNAME: "root"
      DB_PASSWORD: "root"
      DB_HOST: "db"
      DB_PORT: 3306
      DB_NAME: "chat_system_dev"
      SEQUENCE_GENERATOR_URL: "http://sequence-generator:8081"
      QUEUE_CHATS: "queue_chats"
      QUEUE_MESSAGES: "queue_messages"
      SIDEKIQ_REDIS: "redis:6379"
      SIDEKIQ_REDIS_DB: "5"
      SIDEKIQ_REDIS_POOL: "10"
      CHAT_CONCURRENCY: 10
      MESSAGE_CONCURRENCY: 10
  sequence-generator:
    image: sequence-generator:latest
    container_name: sequence-generator
    depends_on:
      redis:
        condition: service_healthy
    environment:
      REDIS_ADDR: "redis:6379"
    ports:
      - "8081:8081"
  reverse-proxy:
    image: nginx:1.25.3
    container_name: reverse-proxy
    ports:
      - "8000:80"
    volumes:
      - ./reverse-proxy:/etc/nginx
    depends_on:
      db:
        condition: service_healthy
  elasticsearch:
    image: docker.elastic.co/elasticsearch/elasticsearch:7.6.0
    container_name: elasticsearch-chat-system
    ports:
      - "9200:9200"
    environment:
      - discovery.type=single-node
      - cluster.name=elasticsearch-rails
      - cluster.routing.allocation.disk.threshold_enabled=false
volumes:
  chat_system_mysql:
  redis_data: