java-tutorials/docker-modules/docker-compose-2/communication_same_machine/dns/docker-compose.yml

services:
  alpine-app-1:
    container_name: alpine-app-1
    image: alpine-app-1
    build:
      context: ..
      dockerfile: Dockerfile
    tty: true
    ports:
      - 8081:8081
  
  alpine-app-2:
    container_name: alpine-app-2
    image: alpine-app-2
    build:
      context: ..
      dockerfile: Dockerfile
    tty: true
    ports:
      - 8080:8080