docker-compose.yml

version: "3.5"

services:
  db_postgres:
    image: postgres:latest
    container_name: db_postgres
    hostname: db_postgres
    environment:
      - POSTGRES_PASSWORD=12345678
      - POSTGRES_USER=postgres
      - POSTGRES_DB=bank
    volumes:
      - ./init.sql:/docker-entrypoint-initdb.d/init.sql
    deploy:
      resources:
        limits:
          cpus: "0.7"
          memory: "120MB"
    networks:
      - default
  api01: &api
    image: suntzu12/concurrence-control:latest
    container_name: api1
    hostname: api01
    environment:
      - POSTGRES_DB_URL=jdbc:postgresql://db_postgres:5432/bank
      - POSTGRES_DB_USER=postgres
      - POSTGRES_DB_PASS=12345678
    depends_on:
      - db_postgres
    deploy:
      resources:
        limits:
          cpus: "0.3"
          memory: "200MB"
    networks:
      - default

  api02:
    <<: *api
    hostname: api02
    container_name: api2

  nginx:
    image: nginx:latest
    container_name: load_balancer
    volumes:
      - ./nginx.conf:/etc/nginx/nginx.conf:ro
    depends_on:
      - api01
      - api02
    ports:
      - "9999:9999"
    deploy:
      resources:
        limits:
          cpus: "0.2"
          memory: "30MB"
    networks:
      - default

networks:
  default:
    driver: bridge
    name: default-network