auth.sh

apikey="API_KEY TO FILL"

function up_txt {
  host="$1"
  val="$2"

  remote="https://zonomi.com/app/dns/dyndns.jsp"
  url="${remote}?host=${host}&api_key=${apikey}&ttl=300&type=TXT&value=${val}"

  #curl -k -s "$url" &> "/var/lib/letsencrypt/dns_txt.${host}.log"
  python -c "import requests; print(requests.get(url='$url', verify=False).text)" &> "/var/lib/letsencrypt/dns_txt.${host}.log"
}

up_txt "_acme-challenge.$CERTBOT_DOMAIN" "$CERTBOT_VALIDATION"