#!/bin/bash

# example of script to add token to local dns using nsupdate

dnskeyfile="path/to/bla.key"
server="localhost"

fulldomain="$1"
token="$2"

updatefile=$(mktemp)

printf "server ${server}\n" > "${updatefile}"
printf "update delete _acme-challenge.%s. 300 in TXT \"%s\"\n\n" "${fulldomain}" "${token}" >> "${updatefile}"

nsupdate -k "${dnskeyfile}" -v "${updatefile}"

rm -f "${updatefile}"