Hetzner Dedicated Server Reverse DNS + Ansible
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Continuing on the path towards all my stuff being managed by Ansible, I’ve figured out a method of managing the reverse DNS entries for subnets on the Hetzner Dedicated Server. There’s a bunch of Ansible modules for handling Hetzner Cloud, but these servers are managed in Robot which the Cloud API doesn’t cover. Instead, you need to use the Robot Webservice. Ansible does have a module for doing pretty arbitrary things with web APIs though, so using that I’ve got the following playbook figured out to keep the reverse DNS entries in sync: