version: "3"

services:
# ----------------------------------------------
  ngx1-net1:
    container_name: ngx1_net1
    build: 
      context: .
      args:
        NET_NAME: net_1
        CONTAINER_NAME: container_1
    ports:
      - "8081:80"
    command: >
      bash -c "apt update
      && apt install knockd iptables iproute2 vim curl -y
      && /root/scripts/knocking_setup.sh && nginx && knockd -d && sleep infinity"
    networks:
      - net_1
      - net_3
    cap_add:
      - NET_ADMIN
  ngx2-net1:
    container_name: ngx2_net1
    build: 
      context: .
      args:
        NET_NAME: net_1
        CONTAINER_NAME: container_2
    networks:
      - net_1
# ----------------------------------------------
  ngx1-net2:
    container_name: ngx1_net2
    build:
      context: .
      args:
        NET_NAME: net_2
        CONTAINER_NAME: container_1
    ports:
      - "8082:80"
    command: >
      bash -c "apt update
      && apt install knockd iptables iproute2 vim curl -y
      && /root/scripts/knocking_setup.sh && nginx && knockd -d && sleep infinity"
    networks:
      - net_2
      - net_3
    cap_add:
      - NET_ADMIN
  ngx2-net2:
    container_name: ngx2_net2
    build:
      context: .
      args:
        NET_NAME: net_2
        CONTAINER_NAME: container_2
    restart: on-failure
    networks:
      - net_2
# ----------------------------------------------
  visor:
    container_name: visor
    image: ubuntu:latest
    command: >
      bash -c "apt update
      && apt install iproute2 vim curl nmap knockd -y
      && sleep infinity"
    networks:
      - net_3

networks:
  net_1:
  net_2:
  net_3:
    driver: bridge
    ipam:
      driver: default
      config:
        - subnet: "172.28.0.0/16"
          gateway: "172.28.0.1"