matrix-docker-ansible-deploy/examples/reverse-proxies/caddy2-in-container/docker-compose.yaml

---
version: "3.9"

services:
  caddy:
    image: caddy:2.5.1-alpine
    networks:
      # add this, so that caddy can talk to the playbook-managed-traefik
      - traefik
    ports:
      - "80:80"
      - "443:443"
      - "8448:8448"
    volumes:
      - ./Caddyfile:/etc/caddy/Caddyfile
      # - ./site:/var/www
    #  Other configurations ...

networks:
  # add this as well
  traefik:
    name: traefik
    external: true