DigitalOcean Dynamic DNS Tool
A simple tool that retrieves your public IPv4 address and updates the A record of a DigitalOcean domain.
This script is not a daemon and should be run as a cron job or systemd timer and service.
Configuration
CLOUDFLARE_API_TOKEN is required to be set with your Cloudflare API token.
Systemd
# update-dns.service
[Unit]
Description=Update the DNS with the new public IP.
[Service]
Type=simple
ExecStart=/path/to/update-dns --domain ${DOMAIN}
[Install]
WantedBy=multi-user.target
# update-dns.timer
[Unit]
Description=Run the update-dns service regularly.
Requires=update-dns.service
[Timer]
# Time to wait after booting before we run first time
OnBootSec=1min
# Time between running each consecutive time
OnUnitActiveSec=15min
Unit=update-dns.service
[Install]
WantedBy=timers.target