Traefik docker-compose network settings

docker-compose.yml

version: '3.8'

services:
  traefik:
    image: traefik:v2.5.0-rc2
    container_name: traefik
    restart: always
    environment:
      - TZ=Asia/Taipei
    ports:
      - "80:80"
      - "443:443/tcp"
      - "443:443/udp"
    volumes:
      - ./conf:/etc/traefik
      - ./log:/var/log/traefik
      - ./ca:/ca
    networks:
      traefik:
        ipv4_address: 172.100.0.1

networks:
  traefik:
    name: traefik
    attachable: true
    ipam:
      config:
        - subnet: 172.100.0.0/24
          gateway: 172.100.0.254