1、手动创建网络
docker network create traefik
2、创建docker-compose.yml，内容如下：
version: '3'

services:
traefik:

image: traefik:v3.6.13
container_name: traefik
restart: unless-stopped
security_opt:
  - no-new-privileges:true
networks:
  - traefik
ports:
  - "5080:80"   # HTTP
  - "5443:443" # HTTPS
  - "8081:8080" # Dashboard
labels:
  # 1. 启用 Traefik 对自身的路由配置
  - "traefik.enable=true"
  - "traefik.http.middlewares.dash-auth.basicauth.users=admin:$$2y$$05$$vkT2TVlotU.2j/gy8JMft.74/7UIBmrYzo865vm2eJK34BWyt4DgW"
  - "traefik.http.routers.dashboard-rule.middlewares=dash-auth"
  # 2. 定义域名路由规则 (把下面域名换成你自己的)
  - "traefik.http.routers.dashboard-rule.rule=Host(`traefik.198388.xyz`)"
  # 3. 指定该路由访问内部的 api 服务
  - "traefik.http.routers.dashboard-rule.service=api@internal"
  # 4. 指定通过哪个入口点访问 (对应你定义的 :80 端口，即宿主机的 5080)
  - "traefik.http.routers.dashboard-rule.entrypoints=web"
volumes:
  - /etc/localtime:/etc/localtime:ro
  - /var/run/docker.sock:/var/run/docker.sock:ro
  # - ./traefik.yml:/traefik.yml:ro
command:
  - "--api.dashboard=true" # 必须开启这个才能使用 dashboard
  - "--api.insecure=false" # 设为 false 是正确的，因为你通过 Label 配置了路由
  - "--providers.docker=true"
  - "--providers.docker.exposedbydefault=false"
  - "--entrypoints.web.address=:80"
  - "--entrypoints.websecure.address=:443" 

networks:
traefik:

external: true

3、启用服务
docker-compose up -d