You can now keep your system up to date automatically by setting: system.autoUpgrade.enable = true; Fixes #7369.wip/yesman
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{ config, lib, pkgs, ... }: |
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with lib; |
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let cfg = config.system.autoUpgrade; in |
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{ |
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options = { |
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system.autoUpgrade = { |
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enable = mkOption { |
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type = types.bool; |
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default = false; |
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description = '' |
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Whether to periodically upgrade NixOS to the latest |
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version. If enabled, a systemd timer will run |
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<literal>nixos-rebuild switch --upgrade</literal> once a |
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day. |
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''; |
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}; |
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channel = mkOption { |
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type = types.nullOr types.str; |
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default = null; |
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example = https://nixos.org/channels/nixos-14.12-small; |
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description = '' |
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The URI of the NixOS channel to use for automatic |
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upgrades. By default, this is the channel set using |
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<command>nix-channel</command> (run <literal>nix-channel |
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--list</literal> to see the current value). |
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''; |
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}; |
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flags = mkOption { |
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type = types.listOf types.str; |
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default = []; |
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example = [ "-I" "stuff=/home/alice/nixos-stuff" "--option" "extra-binary-caches" "http://my-cache.example.org/" ]; |
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description = '' |
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Any additional flags passed to <command>nixos-rebuild</command>. |
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''; |
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}; |
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}; |
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}; |
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config = { |
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system.autoUpgrade.flags = |
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[ "--no-build-output" ] |
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++ (if cfg.channel == null |
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then [ "--upgrade" ] |
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else [ "-I" "nixpkgs=${cfg.channel}/nixexprs.tar.xz" ]); |
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systemd.services.nixos-upgrade = { |
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description = "NixOS Upgrade"; |
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restartIfChanged = false; |
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unitConfig.X-StopOnRemoval = false; |
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serviceConfig.Type = "oneshot"; |
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environment = config.nix.envVars // |
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{ inherit (config.environment.sessionVariables) NIX_PATH SSL_CERT_FILE; |
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HOME = "/root"; |
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}; |
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path = [ pkgs.gnutar pkgs.xz config.nix.package ]; |
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script = '' |
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${config.system.build.nixos-rebuild}/bin/nixos-rebuild test ${toString cfg.flags} |
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''; |
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startAt = mkIf cfg.enable "04:40"; |
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}; |
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}; |
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} |
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