Files
nixos/modules/nixos/remote-builder.nix
T
2025-03-23 01:47:58 -05:00

89 lines
3.1 KiB
Nix

{
config,
lib,
pkgs,
...
}:
let
cfg = config.greg.remote-builder;
in
with lib;
{
options.greg.remote-builder = {
enable = mkEnableOption "Enable this as a remote builder for myself";
};
config = mkIf cfg.enable {
age.secrets = {
# Don't forget to also update home/modules/baseline/xonsh.nix if this changes
cache-credentials = {
file = ../../secrets/cache-credentials.age;
owner = "greg";
group = "nixbld";
mode = "660";
};
private-cache = {
file = ../../secrets/cache-private-key.age;
group = "nixbld";
mode = "660";
};
};
# If the system is powerful enough to be a remote builder, it should
# be powerful enough to do some basic qemu stuff
boot.binfmt.emulatedSystems = [
"i686-linux"
"aarch64-linux"
];
greg.tailscale.enable = true;
# The builder user needs to be trusted to submit builds
nix.settings =
let
upload = getExe (
pkgs.writeShellScriptBin "upload-to-cache.sh" ''
set -eu
set -f
export AWS_SHARED_CREDENTIALS_FILE=${config.age.secrets.cache-credentials.path}
export IFS=' '
${getExe config.nix.package} copy --to "s3://binary-cache/?scheme=http&endpoint=nas.home%3A9000&profile=default" "$@"
''
);
uploadRunner = getExe (
pkgs.writeShellScriptBin "uploade-to-cache-runner.sh" ''
sum=$(printf "$OUT_PATHS" | ${lib.getExe' pkgs.coreutils-full "sha256sum"} | cut -d " " -f1)
${lib.getExe' config.systemd.package "systemd-run"} \
--unit "upload-$(${lib.getExe' pkgs.coreutils "date"} +%s%3N)-$sum" \
--property Type=exec \
--property CollectMode=inactive \
--property Group=nixbld \
${upload} $OUT_PATHS
''
);
in
{
post-build-hook = uploadRunner;
secret-key-files = config.age.secrets.private-cache.path;
trusted-users = [ config.users.users.remote-builder-user.name ];
};
users.users.remote-builder-user = {
openssh.authorizedKeys.keys = [
"ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIG4fNCnomQEsFKQZp16LXRqkfXHzzZbGAYJWPMvlGGQy root@exodus"
"ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIMGJjyFVOsF74QKzRITc8z/5MJlIa47P1tMm9Z8HRJLm root@jude"
"ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIMMOdWSq6NtcP6sfe2uke4wSfgE16hfa970t+8ADdLwk root@nixos"
"ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAINwbFyuS9zcwZ7hGSpAWtx9NJq/elSLN8jYpr+/1nXd8 root@linode"
"ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFXza2Pj05pdzGbiPDc/RF13nHhIZZ63u/WV/BS7bOjf root@genesis"
"ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIDTNTcHmNFB931L5vDAsdOkTc9wFyGpuTMdhc0VYLXME root@isaiah"
"ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIJc/EIBk7lRKBsJQ5Lindz0WIRNUE1z9xeUqhsRN9Pus root@jeremiah"
"ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIBLOqwbp4hFYkiJpokh9i2RToa/6tQcwthDNQH69tyBF root@vm-matrix.thehellings.lan"
];
homeMode = "500";
isNormalUser = true;
useDefaultShell = true;
};
};
}