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this post was submitted on 14 Feb 2024
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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
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I switched from a big custom Ansible deployment to NixOS.
The system includes 8 managed machines, multiple VPNs and a custom certificate authority.
Downsides:
Still, I can only tell you how much more at ease I feel with the NixOS based system. Its just much easier to refactor, not having to take care of legacy cleanup and polluting the machines over time.
Once you wrap your head around it all more complex system architectures start to become manageable/maintainable.
IaC
You still need sth like Terraform on the side for your actual infrastructure provisioning.
Solutions to bridge this with the Nix ecosystem are evolving in the nix-community repos on Github, but I found it easier to manage that separately for the time being.
All in all I would recommend NixOS based systems for the heavy lifters in your setup. If you want to deploy a fleet of machines you are entering new territory. Exciting, but maybe too much of a time commitment for some.