Looks up apparent public IP address using OpenDNS and updates dynamic-dns records on Google Domains or Cloudflare depending on environment variables
Set environment for Google Domains or CloudFlare. If both are set then each will be tried until they all succeed or one fails.
Set these environment variables:
GD_USERNAME=<google domains username>
GD_PASSWORD=<google domains password>
GD_HOSTNAME=<dns record to update>Set these environment variables:
CF_TOKEN=<cloudflare token>
CF_ZONE_ID=<cloudflare zone id>
CF_HOSTNAME=<dns record to update>