services:
  vote:
    image: dockersamples/examplevotingapp_vote:latest
    restart: unless-stopped
    ports:
      - "127.0.0.1:${VOTE_PORT:-18402}:80"
    environment:
      OPTION_A: Cats
      OPTION_B: Dogs
    depends_on:
      redis:
        condition: service_healthy
    networks: [frontend]

  result:
    image: dockersamples/examplevotingapp_result:latest
    restart: unless-stopped
    ports:
      - "127.0.0.1:${RESULT_PORT:-18403}:80"
    depends_on:
      db:
        condition: service_healthy
    networks: [backend]

  worker:
    image: dockersamples/examplevotingapp_worker:latest
    restart: unless-stopped
    depends_on:
      redis:
        condition: service_healthy
      db:
        condition: service_healthy
    networks: [frontend, backend]

  redis:
    image: redis:7-alpine
    restart: unless-stopped
    healthcheck:
      test: [CMD, redis-cli, ping]
      interval: 10s
      timeout: 3s
      retries: 5
    networks: [frontend]

  db:
    image: postgres:15-alpine
    restart: unless-stopped
    environment:
      POSTGRES_USER: postgres
      # The upstream worker/result images hardcode these sample credentials.
      # This database contains disposable votes and has no published port.
      POSTGRES_PASSWORD: postgres
    volumes:
      - votes:/var/lib/postgresql/data
    healthcheck:
      test: [CMD-SHELL, "pg_isready -U postgres -d postgres"]
      interval: 10s
      timeout: 3s
      retries: 5
    networks: [backend]

networks:
  frontend:
  backend:

volumes:
  votes: