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Taming Servers for Fun and Profit
We’ve all gotten used to clicking a button and getting a Linux machine running in the cloud. But when you’re building your own cloud, you’ve got to build the button first.
A hardware configuration is as simple as a set of conditionals in Golang that match the key distinguishing factors of a specific type of server, and a config object containing stable interface and drive names. A custom plugin exposes this Hardware Config object to Ansible, allowing us to reference NVMe disks and network interface names with Jinja template expressions. This network isn’t built to scale as it instead relies on being limited to a few hundred hosts at most and uses off-the-shelf routers, DHCP and VLANs for isolation and operation with low fault tolerance.
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