Yeah, I wrote a little http endpoint that I access with curl in a cron job. The server updates my master DNS git repo and which then updates the data in Route 53.
The DNS stuff is based on a Perl module I wrote called Net::DNS::Create [1]. It allows you to use a little DSL-ish language to create your DNS entries, then compile them into whatever DNS backend you want (Bind, TinyDNS, and Route53 are supported out of the box, and all have been used in production at some point). A quick example of what this might look like is here: https://github.com/caldwell/net-dns-create/blob/master/creat...
The DNS stuff is based on a Perl module I wrote called Net::DNS::Create [1]. It allows you to use a little DSL-ish language to create your DNS entries, then compile them into whatever DNS backend you want (Bind, TinyDNS, and Route53 are supported out of the box, and all have been used in production at some point). A quick example of what this might look like is here: https://github.com/caldwell/net-dns-create/blob/master/creat...
[1] http://search.cpan.org/~david/Net-DNS-Create-v0.10.0/lib/Net...