#!/bin/bash

domains="{{ duckdns.domains }}"
token="{{ duckdns.token }}"
{% if duckdns.logfile is undefined -%}
  log="/var/log/duckdns.log"
{% else -%}
  log="{{ duckdns.logfile }}"
{% endif %}

url="https://www.duckdns.org/update?domains=$domains&token=$token&ip="

time=$(date '+%Y%m%d-%H%M%S')
result=$(curl $url)

if [ "$result" = "OK" ];  then
  echo "[$time] OK" >> $log
else
  echo "[$time] ERROR: $result" >> $log
fi