Implemented Multi docker network and connection

[kforeverisback]

What

Implements Multi-Network mode in docker-compose.

Closes

Fixes #44

Tests

Tested multi-network using the following docker-compose.yaml

version: '3.9'

networks:
  nginx_net:
    driver: bridge
    name: nginx_net
    ipam:
      config:
        - subnet: 172.84.0.0/16
          gateway: 172.84.0.1
  k3d-ext: # Test an external network
    name: k3d
    external: true

services:
  nginx:
    container_name: nginx
    image: nginx:latest
    ports:
      - 8800:80
      - 2120:8000
    networks:
      - nginx_net
      - k3d-ext
    labels:
      - "UFW_MANAGED=TRUE"

Sample Log from systemd

May 10 18:33:03 chromebox ufw-docker-automated[11836]: 2023-05-10T18:33:03-07:00 INF main.go:18 > ufw-docker-automated: Connected to the Docker Engine.
May 10 18:33:41 chromebox ufw-docker-automated[11836]: 2023-05-10T18:33:41-07:00 INF create.go:91 > ufw-docker-automated: Adding inbound rule: /usr/bin/sudo ufw route allow proto tcp from 10.110.210.179 to 192.168.151.3 port 80 comment traefik:e2dbe6de65a2
May 10 18:33:41 chromebox ufw-docker-automated[11836]: 2023-05-10T18:33:41-07:00 INF create.go:96 > ufw cmd (network: socket_proxy): /usr/bin/sudo ufw route allow proto tcp from 10.110.210.179 to 192.168.151.3 port 80 comment traefik:e2dbe6de65a2
May 10 18:33:41 chromebox ufw-docker-automated[11836]: 2023-05-10T18:33:41-07:00 INF create.go:91 > ufw-docker-automated: Adding inbound rule: /usr/bin/sudo ufw route allow proto tcp from 10.110.210.179 to 192.168.150.2 port 80 comment traefik:e2dbe6de65a2
May 10 18:33:41 chromebox ufw-docker-automated[11836]: 2023-05-10T18:33:41-07:00 INF create.go:96 > ufw cmd (network: t2_proxy): /usr/bin/sudo ufw route allow proto tcp from 10.110.210.179 to 192.168.150.2 port 80 comment traefik:e2dbe6de65a2

[kforeverisback]

@shinebayar-g

[shinebayar-g]

Hi @kforeverisback , thanks for the PR. I'll take a look at it this weekend.

[shinebayar-g]

Thank you so much for the contribution @kforeverisback