Digital Ocean Dynamic DNS

A simple script for updating your DNS records over at Digital Ocean with your current external IP.

Requirements

This script requires both doctl and jq to work its magic.

Installing

Download and install script

$ curl -O https://raw.githubusercontent.com/kevinbungeneers/digitalocean-dyndns/master/update-dodns.sh
$ chmod +x update-dodns.sh
$ mv update-dodns.sh /usr/local/bin/update-dodns

Create environmentfile

$ cat <<EOT >> /etc/default/update-dodns
DO_ACCESSTOKEN=datapikeytho
DO_DOMAIN=example.com
DO_HOSTNAMES=dathostname
# Or if you want to update multiple hostnames:
# DO_HOSTNAMES=dathostname;datotherhostname
XDG_CONFIG_HOME=/root

EOT

Install the systemd service + timer

$ ( cd /etc/systemd/system/; curl -O https://raw.githubusercontent.com/kevinbungeneers/digitalocean-dyndns/master/systemd/update-dodns.service && curl -O https://raw.githubusercontent.com/kevinbungeneers/digitalocean-dyndns/master/systemd/update-dodns.timer)
$ systemctl enable update-dodns.timer && systemctl start update-dodns.timer

By default the timer gets triggered at 01:00 every night. Change the OnCalendar entry in /etc/systemd/system/update-dodns.timer if you want a more/less frequent interval.