nixos-config/config/nix.nix
2023-08-23 10:41:06 +01:00

141 lines
4.1 KiB
Nix

{
pkgs,
lib,
config,
system,
attic,
...
}: let
attic-client = attic.packages.${system}.attic-client;
post-build-hook = pkgs.writeScript "post-build-hook" ''
#!${pkgs.bash}/bin/bash
set -euf
export IFS=' '
until ${attic-client}/bin/attic push chir-rs $OUT_PATHS; do
sleep 5
echo "Retrying..."
done
'';
in {
imports = [
./workarounds
];
sops.secrets."attic/config.toml" = {
sopsFile = ../secrets/shared.yaml;
owner = "root";
key = "attic/config.toml";
path = "/root/.config/attic/config.toml";
};
nixpkgs.config.allowUnfree = true;
nix = {
settings = {
sandbox = true;
trusted-users = ["@wheel" "remote-build"];
require-sigs = true;
builders-use-substitutes = true;
substituters = [
"https://attic.chir.rs/chir-rs/"
"https://hydra.int.chir.rs"
];
trusted-public-keys = [
"nixcache:8KKuGz95Pk4UJ5W/Ni+pN+v+LDTkMMFV4yrGmAYgkDg="
"hydra.nixos.org-1:CNHJZBh9K4tP3EKF6FkkgeVYsS3ohTl+oS0Qa8bezVs="
"chir-rs:AnwyFacopHSkprD6aXY4/R3J9JYzTbV2rosJCBPaB28="
"riscv:TZX1ReuoIGt7QiSQups+92ym8nKJUSV0O2NkS4HAqH8="
"cache.ztier.link-1:3P5j2ZB9dNgFFFVkCQWT3mh0E+S3rIWtZvoql64UaXM="
];
post-build-hook = "${post-build-hook}";
auto-optimise-store = true;
};
package = pkgs.nix;
extraOptions = ''
experimental-features = nix-command flakes ca-derivations
'';
gc = {
automatic = true;
dates = "weekly";
options = "--delete-older-than 7d";
};
buildMachines = with lib;
mkMerge [
(mkIf (config.networking.hostName != "instance-20221213-1915") [
{
hostName = "build-aarch64";
systems = [
"aarch64-linux"
];
maxJobs = 4;
speedFactor = 1;
supportedFeatures = ["nixos-test" "benchmark" "ca-derivations" "gccarch-armv8-a" "gccarch-armv8.1-a" "gccarch-armv8.2-a" "big-parallel"];
}
])
];
distributedBuilds = true;
};
systemd.services.nix-daemon.environment.TMPDIR = "/build";
systemd.services.nixos-upgrade = {
description = "NixOS Upgrade";
restartIfChanged = false;
unitConfig.X-StopOnRemoval = false;
serviceConfig.Type = "oneshot";
path = with pkgs; [
coreutils
gnutar
xz.bin
gzip
gitMinimal
config.nix.package.out
config.programs.ssh.package
jq
curl
];
script = lib.mkDefault ''
#!${pkgs.bash}/bin/bash
set -ex
builds=$(${pkgs.curl}/bin/curl -H 'accept: application/json' https://hydra.int.chir.rs/jobset/flakes/nixos-config/evals | ${pkgs.jq}/bin/jq -r '.evals[0].builds[]')
for build in $builds; do
doc=$(${pkgs.curl}/bin/curl -H 'accept: application/json' https://hydra.int.chir.rs/build/$build)
jobname=$(echo $doc | ${pkgs.jq}/bin/jq -r '.job')
if [ "$jobname" = "${config.networking.hostName}.${system}" ]; then
drvname=$(echo $doc | ${pkgs.jq}/bin/jq -r '.drvpath')
output=$(${pkgs.nix}/bin/nix-store -r $drvname)
$output/bin/switch-to-configuration boot
booted="$(${pkgs.coreutils}/bin/readlink /run/booted-system/{initrd,kernel,kernel-modules})"
built="$(${pkgs.coreutils}/bin/readlink /nix/var/nix/profiles/system/{initrd,kernel,kernel-modules})"
if [ "$booted" = "$built" ]; then
$output/bin/switch-to-configuration switch
else
${pkgs.systemd}/bin/shutdown -r +1
fi
exit
fi
done
'';
after = ["network-online.target"];
wants = ["network-online.target"];
};
systemd.timers.nixos-upgrade = {
timerConfig = {
OnBootSec = 300;
RandomizedDelaySec = 3600;
OnUnitActiveSec = 3600;
};
requires = ["nixos-upgrade.service"];
wantedBy = ["multi-user.target"];
};
systemd.sockets.nixos-upgrade = {
socketConfig = {
Service = "nixos-upgrade.service";
BindIPv6Only = true;
ListenDatagram = "[::]:15553";
};
};
}