caddy-retired/conf/example.conf

#!/bin/bash
(r53) {
  tls {
      dns route53 {
        max_retries 10
      }
  }
}
(errors) {
handle_errors {
  	rewrite * /{http.error.status_code}.html
  	file_server
  }
}

https://example.<mydomain.com> {
import r53
root * /opt/caddy/example-web
file_server
import errors
  }