Add configuration specialArgs example

example/configuration.nix

@@ -1,6 +1,9 @@
-{ lib, pkgs, config, ... }: {
+{ lib, pkgs, config, unstable, ... }: {
 
- imports = [ ./hardware-configuration.nix ];
+ imports = [
+ ./hardware-configuration.nix
+ (unstable + "/nixos/modules/services/video/photonvision.nix")
+ ];
 
  boot.loader.timeout = 10;
  boot.loader.grub.device = "/dev/vda";

example/deploy.nix

@@ -1,36 +1,49 @@
-{ config, ... }: {
+{ config, lib, ... }: {
+
+ options.defaults = lib.mkOption {
+ type = lib.types.submodule {
+ options.configuration = lib.mkOption {
+ type = lib.types.submoduleWith {
+ specialArgs.unstable = fetchTarball "channel:nixpkgs-unstable";
+ modules = [];
+ };
+ };
+ };
+ };
 
- defaults = { lib, name, ... }: {
- configuration = {
- networking.hostName = lib.mkDefault name;
+ config = {
+ defaults = { lib, name, ... }: {
+ configuration = {
+ networking.hostName = lib.mkDefault name;
+ };
+
+ # Which nixpkgs version we want to use for this node
+ nixpkgs = lib.mkDefault (fetchTarball {
+ url = "https://github.com/NixOS/nixpkgs/tarball/81cef6b70fb5d5cdba5a0fef3f714c2dadaf0d6d";
+ sha256 = "1mj9psy1hfy3fbalwkdlyw3jmc97sl9g3xj1xh8dmhl68g0pfjin";
+ });
  };
 
- # Which nixpkgs version we want to use for this node
- nixpkgs = lib.mkDefault (fetchTarball {
- url = "https://github.com/NixOS/nixpkgs/tarball/81cef6b70fb5d5cdba5a0fef3f714c2dadaf0d6d";
- sha256 = "1mj9psy1hfy3fbalwkdlyw3jmc97sl9g3xj1xh8dmhl68g0pfjin";
- });
- };
+ nodes.foo = { lib, config, ... }: {
+ # How to reach this node
+ host = "[email protected]";
 
- nodes.foo = { lib, config, ... }: {
- # How to reach this node
- host = "[email protected]";
+  # What configuration it should have
+  configuration = ./configuration.nix;
+ };
 
- # What configuration it should have
- configuration = ./configuration.nix;
- };
+ nodes.legacyNixpkgs = { lib, config, ... }: {
+  # How to reach this node
+  host = "[email protected]";
 
- nodes.legacyNixpkgs = { lib, config, ... }: {
- # How to reach this node
- host = "[email protected]";
+ nixpkgs = fetchTarball {
+ url = "https://github.com/NixOS/nixpkgs/tarball/38431cf21c59a84c0ddedccc0cd66540a550ec26";
+ sha256 = "0bi5lkq2a34pij00axsa0l0j43y8688mf41p51b6zyfdzgjgsc42";
+ };
 
- nixpkgs = fetchTarball {
- url = "https://github.com/NixOS/nixpkgs/tarball/38431cf21c59a84c0ddedccc0cd66540a550ec26";
- sha256 = "0bi5lkq2a34pij00axsa0l0j43y8688mf41p51b6zyfdzgjgsc42";
+ # What configuration it should have
+ configuration = ./configuration.nix;
  };
-
- # What configuration it should have
- configuration = ./configuration.nix;
  };
 
 }