I tried docker-compose build but it's failed.
The message I got was
curl: (22) The requested URL returned error: 404
The URL requested was
https://caddyserver.com/download/linux/amd64?plugins=http.expires,http.realip&license=personal
When I hit that URL on web browser manually, it shows 404 error page. I think URL for downloading Caddy might be changed.