home-dns is a dynamic DNS daemon for AWS Route53.
Run as a daemon with internal crons, it fetches your public IP, then updates the selected records in a Route53 zone. This was a small project that I started to get familiar with the AWS SDK for Golang, and have been using ever since to keep my dynamic home DNS up to date.
home-dns is stable. The functionality is fairly limited and will probably not grow much, and so the config format is not likely to change.
The config file lists the IP source, which must be an HTTP endpoint that responds with your current IP in plain text, and the records to be updated:
source: "https://api.ipify.org?format=text" records: - cron: "@hourly" name: home.example.com. ttl: 300 zone: Z1ABCDEF123456 - cron: "@daily" name: office.example.com. ttl: 86400 zone: Z1ABCDEF123456