65 lines
1.6 KiB
Nix
65 lines
1.6 KiB
Nix
{
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# Defines a minimal `nixosConfigurations` output and verifies a known
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# value from the evaluated system configuration.
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description = "A minimal nixosConfigurations example";
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inputs = {
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nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
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};
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outputs =
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{ nixpkgs, ... }:
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let
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system = "x86_64-linux";
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pkgs = nixpkgs.legacyPackages.${system};
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demoSystem = nixpkgs.lib.nixosSystem {
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inherit system;
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modules = [
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./module.nix
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{
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boot.loader.grub = {
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enable = true;
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device = "/dev/null";
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};
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fileSystems."/" = {
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device = "tmpfs";
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fsType = "tmpfs";
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};
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system.stateVersion = "24.11";
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playground = {
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hostName = "demo-machine";
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motd = "hello from nixosConfigurations";
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};
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}
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];
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};
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in
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{
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nixosConfigurations.demo = demoSystem;
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checks.${system}.configuration =
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pkgs.runCommand "nixos-configuration-check"
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{
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inherit (demoSystem.config.networking) hostName;
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motd = demoSystem.config.environment.etc."playground-motd".text;
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}
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''
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if [ "$hostName" != "demo-machine" ]; then
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echo "unexpected host name: $hostName" >&2
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exit 1
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fi
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if [ "$motd" != "hello from nixosConfigurations" ]; then
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echo "unexpected motd: $motd" >&2
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exit 1
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fi
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echo ok > "$out"
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'';
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};
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}
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