docker-compose.yml

services:
  bind9:
    build: ./bind9
    image: bind9
    container_name: dns-server
    volumes:
      - ./bind9/hosts:/etc/hosts
      - ./bind9/named.conf.options:/etc/bind/named.conf.options
      - ./bind9/named.conf.local:/etc/bind/named.conf.local
      - ./bind9/zones:/etc/bind/zones/
      - ./bind9/entrypoint.sh:/entrypoint.sh
    entrypoint:
    - bash
    - entrypoint.sh
    networks:
      my-net-one:
        ipv4_address: 172.20.0.2
      my-net-two:
        ipv4_address: 173.20.0.2

  host1:
    build: ./hostmachine
    image: hostmachine:latest
    container_name: host1
    command: tail -F anything
    hostname: host_1
    volumes:
       - ./hostmachine/resolv.conf:/etc/resolv.conf
    dns:
    - 172.20.0.2
    networks:
      my-net-one:
        ipv4_address: 172.20.0.3

  host2:
    build: ./hostmachine
    image: hostmachine:latest
    container_name: host2
    command: tail -F anything
    hostname: host_2
    volumes:
       - ./hostmachine/resolv2.conf:/etc/resolv.conf
    dns:
    - 173.20.0.2
    networks:
      my-net-two:
        ipv4_address: 173.20.0.4

  host3:
    build: ./hostmachine
    image: hostmachine:latest
    container_name: host3
    command: tail -F anything
    hostname: host_3
    volumes:
      - ./hostmachine/resolv.conf:/etc/resolv.conf
    dns:
    - 172.20.0.2
    networks:
      my-net-one:
        ipv4_address: 172.20.0.5

networks:
  my-net-one:
    name: my-net-one
    driver: bridge
    ipam:
      driver: default
      config:
        - subnet: 172.20.0.0/24
          gateway: 172.20.0.254
  my-net-two:
    name: my-net-two
    driver: bridge
    ipam:
      driver: default
      config:
        - subnet: 173.20.0.0/24
          gateway: 173.20.0.254