Hello Docker Stack

hello.yml

---
version: "3.8"

services:
  hello:
    image: prologic/hello-go
    networks:
      - traefik
    deploy:
      mode: replicated
      replicas: 1
      labels:
        - "traefik.enable=true"
        - "traefik.docker.network=traefik"
        - "traefik.http.services.hello.loadbalancer.server.port=8000"
        - "traefik.http.routers.hello.rule=HostRegexp(`{subdomain:.+}.$DOMAIN`)"
        - "traefik.http.routers.hello.priority=1"
      resources:
        limits:
          cpus: "0.1"
          memory: 50M
      restart_policy:
        condition: on-failure

networks:
  traefik:
    external: true