NixOS configuration for HPC cluster
https://docs.hpc.informatik.hs-fulda.de/
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88 lines
1.8 KiB
88 lines
1.8 KiB
{ pkgs, lib, config, modulesPath, nodes, ... }:
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with lib;
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let
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manager = nodes."manager".config;
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auto-install = pkgs.writers.writeBash "auto-install" ''
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set -o errexit
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set -o nounset
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set -o pipefail
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set -x
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if [[ "$(cat /proc/cmdline)" =~ nixos\.install=([^ ]+) ]]; then
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INSTALL="''${BASH_REMATCH[1]}"
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else
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echo "No install derivation found" >&2
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exit 1
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fi
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${pkgs.retry}/bin/retry \
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--times 10 \
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--delay 15 \
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-- ${pkgs.nix}/bin/nix-store \
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--realize \
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--add-root /tmp/install \
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"$INSTALL"
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exec /tmp/install
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'';
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in
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{
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imports = [
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"${modulesPath}/installer/netboot/netboot-minimal.nix"
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../../../modules
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];
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config = {
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services.getty.autologinUser = lib.mkForce "root";
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networking.hostName = "installer";
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users.users."root" = {
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openssh.authorizedKeys.keys = manager.users.users."root".openssh.authorizedKeys.keys;
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};
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systemd.services."auto-install" = {
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description = "Automated NixOS installer";
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wants = [ "network-online.target" ];
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after = [ "network-online.target" ];
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conflicts = [ "getty@tty1.service" ];
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wantedBy = [ "multi-user.target" ];
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path = [ pkgs.bash pkgs.nix ];
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unitConfig = {
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AssertKernelCommandLine = "nixos.install";
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FailureAction = "reboot-force";
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};
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serviceConfig = {
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Type = "oneshot";
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ExecStart = auto-install;
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StandardInput = "tty-force";
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TTYPath = "/dev/tty1";
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TTYVTDisallocate = false;
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};
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};
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nix.settings = {
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substituters = [
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"http://cache.${manager.networking.domain}"
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];
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trusted-public-keys = [
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(fileContents manager.gather.parts."cache/key".path)
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];
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};
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system.stateVersion = config.system.nixos.release;
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};
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}
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