Custom image for caddy + porkbun + rate limit + geoip

[abuettner93]

I would like a Caddy build with the following modules:

• Rate limit: https://github.com/mholt/caddy-ratelimit
• Porkbun DNS: https://github.com/caddy-dns/porkbun
• Maxmind GeoIP: https://github.com/porech/caddy-maxmind-geolocation

Thanks :)