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nixos/autoUpgrade: add flake support

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This commit is contained in:
Finn Behrens 2020-06-03 16:33:32 +02:00
parent a448d9156b
commit c9daa81eff
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GPG key ID: 8609A7B519E5E342
1 changed files with 69 additions and 29 deletions
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98
nixos/modules/tasks/auto-upgrade.nix
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@ -2,9 +2,9 @@
with lib; with lib;
let cfg = config.system.autoUpgrade; in let cfg = config.system.autoUpgrade;
{ in {
options = { options = {
@ -21,6 +21,16 @@ let cfg = config.system.autoUpgrade; in
''; '';
}; };
flake = mkOption {
type = types.nullOr types.str;
default = null;
example = "github:kloenk/nix";
description = ''
The Flake URI of the NixOS configuration to build.
Disables the option <option>system.autoUpgrade.channel</option>.
'';
};
channel = mkOption { channel = mkOption {
type = types.nullOr types.str; type = types.nullOr types.str;
default = null; default = null;
@ -35,10 +45,20 @@ let cfg = config.system.autoUpgrade; in
flags = mkOption { flags = mkOption {
type = types.listOf types.str; type = types.listOf types.str;
default = []; default = [ ];
example = [ "-I" "stuff=/home/alice/nixos-stuff" "--option" "extra-binary-caches" "http://my-cache.example.org/" ]; example = [
"-I"
"stuff=/home/alice/nixos-stuff"
"--option"
"extra-binary-caches"
"http://my-cache.example.org/"
];
description = '' description = ''
Any additional flags passed to <command>nixos-rebuild</command>. Any additional flags passed to <command>nixos-rebuild</command>.
If you are using flakes and use a local repo you can add
<command>[ "--update-input" "nixpkgs" "--commit-lock-file" ]</command>
to update nixpkgs.
''; '';
}; };
@ -82,11 +102,23 @@ let cfg = config.system.autoUpgrade; in
config = lib.mkIf cfg.enable { config = lib.mkIf cfg.enable {
system.autoUpgrade.flags = assertions = [{
[ "--no-build-output" ] assertion = !((cfg.channel != null) && (cfg.flake != null));
++ (if cfg.channel == null message = ''
then [ "--upgrade" ] The options 'system.autoUpgrade.channels' and 'system.autoUpgrade.flake' cannot both be set.
else [ "-I" "nixpkgs=${cfg.channel}/nixexprs.tar.xz" ]); '';
}];
system.autoUpgrade.flags = [ "--no-build-output" ]
++ (if cfg.flake == null then
(if cfg.channel == null then
[ "--upgrade" ]
else [
"-I"
"nixpkgs=${cfg.channel}/nixexprs.tar.xz"
])
else
[ "--flake ${cfg.flake}" ]);
systemd.services.nixos-upgrade = { systemd.services.nixos-upgrade = {
description = "NixOS Upgrade"; description = "NixOS Upgrade";
@ -96,33 +128,41 @@ let cfg = config.system.autoUpgrade; in
serviceConfig.Type = "oneshot"; serviceConfig.Type = "oneshot";
environment = config.nix.envVars // environment = config.nix.envVars // {
{ inherit (config.environment.sessionVariables) NIX_PATH; inherit (config.environment.sessionVariables) NIX_PATH;
HOME = "/root"; HOME = "/root";
} // config.networking.proxy.envVars; } // config.networking.proxy.envVars;
path = with pkgs; [ coreutils gnutar xz.bin gzip gitMinimal config.nix.package.out ]; path = with pkgs; [
coreutils
gnutar
xz.bin
gzip
gitMinimal
config.nix.package.out
];
script = let script = let
nixos-rebuild = "${config.system.build.nixos-rebuild}/bin/nixos-rebuild"; nixos-rebuild =
in "${config.system.build.nixos-rebuild}/bin/nixos-rebuild";
if cfg.allowReboot then '' in if cfg.allowReboot then ''
${nixos-rebuild} boot ${toString cfg.flags} ${nixos-rebuild} boot ${toString cfg.flags}
booted="$(readlink /run/booted-system/{initrd,kernel,kernel-modules})" booted="$(readlink /run/booted-system/{initrd,kernel,kernel-modules})"
built="$(readlink /nix/var/nix/profiles/system/{initrd,kernel,kernel-modules})" built="$(readlink /nix/var/nix/profiles/system/{initrd,kernel,kernel-modules})"
if [ "$booted" = "$built" ]; then if [ "$booted" = "$built" ]; then
${nixos-rebuild} switch ${toString cfg.flags} ${nixos-rebuild} switch ${toString cfg.flags}
else else
/run/current-system/sw/bin/shutdown -r +1 /run/current-system/sw/bin/shutdown -r +1
fi fi
'' else '' '' else ''
${nixos-rebuild} switch ${toString cfg.flags} ${nixos-rebuild} switch ${toString cfg.flags}
''; '';
startAt = cfg.dates; startAt = cfg.dates;
}; };
systemd.timers.nixos-upgrade.timerConfig.RandomizedDelaySec = cfg.randomizedDelaySec; systemd.timers.nixos-upgrade.timerConfig.RandomizedDelaySec =
cfg.randomizedDelaySec;
}; };