Скачать или смотреть The Nix Hour #22 [nixos-rebuild, switch-to-configuration, activationScripts]

The Nix Hour is a weekly beginner-oriented improvised Q&A-style lecture on Nix, where you can bring your questions and we'll answer them with more context, examples, alternatives, tradeoffs and related topics.

Feel free to ask questions using the live chat, or even ask questions directly by joining the meeting: https://meet.jit.si/nix-hour. Alternatively ask questions ahead of time by opening an issue in https://github.com/tweag/nix-hour

For more information and updates, check out https://discourse.nixos.org/t/the-nix...

00:00 Intro, issues overview
01:49 Looking at nixos-rebuild
02:59 Building with (nixpkgs/nixos)
06:24 Passing NixOS configuration via NIX_PATH/-I
08:11 Using nixos directory from NIX_PATH
09:21 Specifying channel on command line
10:05 Using "nixos" attribute of nixpkgs to build system
12:43 What is "system" attribute
14:53 Fixing minimal configuration.nix
15:41 What is stateVersion
19:13 How flake is built in nixos-rebuild
20:28 Building and deploying on other hosts using nixos-rebuild
21:37 Switching system profile
24:30 Switching the system to new configuration
26:12 "switch-to-configuration" script
30:07 "activate" script
32:16 Atomically changing /etc directory
34:28 Adding custom activation scripts
39:30 When is "/run/current-system" symlink set
44:12 Custom activation scripts ordering
45:31 Signoff