nix
nixos-generators
nix | nixos-generators | |
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2 | 20 | |
12 | 1,520 | |
- | 5.3% | |
7.9 | 8.3 | |
3 days ago | 5 days ago | |
Nix | Nix | |
- | MIT License |
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nix
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NixOS 21.05 Released
I was able to make the switch over cold turkey after ~9 years of ArchLinux.
By sheer happenstance, I blogged earlier this week about one particular killer feature that doesn't get enough air time: https://news.ycombinator.com/item?id=27344677
My not-flake-yet configuration can be found at https://github.com/rraval/nix
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Nix solves the package manager ejection problem
> How do NixOS users typically manage software that is not a Nix package
By writing a Nix package for it (I don't mean for this to sound flippant, tone is a bit hard to convey over text).
For example I have this alpha quality rust binary that I'm developing but I also want a stable version installed at the OS level. I write a Nix package and simply compose it into my overall NixOS configuration alongside the more official Nixpkgs: https://github.com/rraval/nix/blob/master/git-nomad.nix
> like a source code tarball where you would traditionally run configure && make && make install?
Nix has a bunch of defaults that make a conventional package like this straightforward.
Here's a package for a vanilla C binary + library that does the `autoreconf && ./configure && make && make install` dance: https://github.com/NixOS/nixpkgs/blob/master/pkgs/tools/secu...
It's almost a little misleading because the actual steps are largely inherited from the defaults, you can read more about `stdenv.mkDerivation` here: https://nixos.org/guides/nix-pills/fundamentals-of-stdenv.ht...
nixos-generators
- NixOS-generators – Collection of VM and Container disk image builders for NixOS
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NixOS: Declarative Builds and Deployments
https://github.com/nix-community/nixos-generators
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NixOS RFC 136 accepted: A plan to stabilize the new CLI and Flakes incrementally
Those Linode instructions are about installing an OS from an installation ISO from Linode's rescue mode. -- I'd consider that more a 'plus' to Linode that you get to be able to install whatever unsupported Linux on Linode's VMs. But, of course it's not as smooth as the officially supported images.
Sibling comment mentions that NixOS provides ways to build VM images (e.g. https://github.com/nix-community/nixos-generators has a generator specifically for Linode).
Another option is to use nixos-infect, which will replace a Linux distribution with a NixOS distribution. https://github.com/elitak/nixos-infect
> At that point, I feel like all of the repeatability gains are gone. If I want to spin up a fresh server, I have to read a guide and set stuff up by hand?
Just as with ansible, "git pull to deploy". You'd keep a copy of your NixOS configuration.nix somewhere else, and would be able to apply it later.
> it really does let me just get a new VPS and deploy to it very fast
Using a tool you're familiar with to get the job done is going to be faster than learning to use a tool you're unfamiliar with.
I believe much of the use of NixOS is for hobby stuff, and for personal machines. (c.f. "In what environments do you use Nix", Development (1242) vs Home Server (845) vs Production (386) https://discourse.nixos.org/t/2022-nix-survey-results/18983).
- Questions about Nix
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Couple of noob questions
If you need to generate lxc container in NixOS then perhaps this repo might be useful: https://github.com/nix-community/nixos-generators this article uses it https://www.thedroneely.com/posts/running-nixos-linux-containers/
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disko-images - Create qcow2 images from NixOS + disko configuration
You might wanna check out nix-community/nixos-generators, it’s maintained by the same dude as Disko
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How to do machine specific config on EC2 using an official nixos ami?
You can look at nixos-generators for support code that well let you take existing configs and build a variety of bootable images from them.
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Flake to make NixOS iso
You should take a look at NixOS Generators, it's a flake with configs to build common formats like ISO, LXC, Docker, etc. I use that to generate an ISO with my config, specifically the packages.iso section.
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Need help with NixOs VM Generation
I am trying to make use of https://github.com/nix-community/nixos-generators to generate qcow2 images from a NixOs configuration. Since it will be used with Scaleway, they require an efi bootable image.
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[NixOS] How to Migrate From one Server to another? KVM to VMware
I haven't migrated machines from one vm provider to vmware, but I have provided a number of pregenerated nixos images (along the line of https://github.com/nix-community/nixos-generators) to clients to install onto vmware (and other - hyperv, xen, qemu, physical) hosts.
What are some alternatives?
napalm - Support for building npm packages in Nix and lightweight npm registry [maintainer @jtojnar]
poetry2nix - Convert poetry projects to nix automagically [maintainer=@adisbladis]
Home Manager using Nix - Manage a user environment using Nix [maintainer=@rycee]
NixOS-docker - DEPRECATED! Dockerfiles to package Nix in a minimal docker container
nix - Nix, the purely functional package manager
nixGL - A wrapper tool for nix OpenGL application [maintainer=@guibou]
nix-gaming - Gaming on Nix
runix
nixops - NixOps is a tool for deploying to NixOS machines in a network or cloud.
nix-bundle - Bundle Nix derivations to run anywhere!
digga - A flake utility library to craft shell-, home-, and hosts- environments.