Sunset the build machine configuration and move it to the newer format. Setup the Forgejo Runner.
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8 changed files with 413 additions and 45 deletions
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# Edit this configuration file to define what should be installed on
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# your system. Help is available in the configuration.nix(5) man page
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# and in the NixOS manual (accessible by running ‘nixos-help’).
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{
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config,
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pkgs,
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...
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}: {
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# Add Lix instead of Nix
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nixpkgs.overlays = [
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(final: prev: {
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inherit
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(prev.lixPackageSets.stable)
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nixpkgs-review
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nix-eval-jobs
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nix-fast-build
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colmena
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;
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})
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];
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nix.package = pkgs.lixPackageSets.stable.lix;
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imports = [
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# Include the results of the hardware scan.
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./hardware-configuration.nix
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];
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# Enable Rsymc
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services.rsync.enable = true;
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# Passwordless sudo for wheel group
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security.sudo.wheelNeedsPassword = false;
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# Hardware U2F support - Passwordless sudo with hardware key
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security.pam.u2f = {
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enable = true;
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settings = {
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authfile = "/etc/u2f_keys";
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cue = true;
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pinverification = 0; # No PIN verification
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userpresence = 1; # Require user presence (touch)
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};
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};
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# Add to your configuration.nix
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# Optimize builds
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nix.settings = {
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# Enable parallel building
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max-jobs = "auto";
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cores = 0; # Use all available cores
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# Optimize store operations
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auto-optimise-store = true;
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# Build settings
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sandbox = true;
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keep-outputs = true;
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keep-derivations = true;
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};
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# Enable distributed builds (optional, for your VM setup)
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nix.buildMachines = [];
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nix.distributedBuilds = false;
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# Optimize garbage collection
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nix.gc = {
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automatic = true;
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dates = "weekly";
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options = "--delete-older-than 30d";
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};
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# Increase build speed with tmpfs for builds (if you have enough RAM)
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# Comment out if low on memory
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systemd.services.nix-daemon.environment = {
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TMPDIR = "/tmp";
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};
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boot.tmp.useTmpfs = true;
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boot.tmp.tmpfsSize = "50%"; # Adjust based on your 62GB RAM
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# For image building specifically
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virtualisation.vmVariant = {
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virtualisation = {
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memorySize = 4096; # Adjust for build-vm
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cores = 2;
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};
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};
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# SSH Agent authentication
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security.pam.sshAgentAuth.enable = true;
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# Automatic upgrades
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system.autoUpgrade = {
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enable = true; # Set to true for automatic updates
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dates = "daily";
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allowReboot = false;
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};
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# Bootloader.
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boot.loader.systemd-boot.enable = true;
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boot.loader.efi.canTouchEfiVariables = true;
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# Enable Tailscale
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services.tailscale.enable = true;
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networking.hostName = "nixos-build-machine"; # Define your hostname.
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# networking.wireless.enable = true; # Enables wireless support via wpa_supplicant.
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# Configure network proxy if necessary
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# networking.proxy.default = "http://user:password@proxy:port/";
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# networking.proxy.noProxy = "127.0.0.1,localhost,internal.domain";
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# Enable networking
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networking.networkmanager.enable = true;
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# Set your time zone.
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time.timeZone = "Europe/Copenhagen";
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# Select internationalisation properties.
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i18n.defaultLocale = "en_AU.UTF-8";
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i18n.extraLocaleSettings = {
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LC_ADDRESS = "en_AU.UTF-8";
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LC_IDENTIFICATION = "en_AU.UTF-8";
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LC_MEASUREMENT = "en_AU.UTF-8";
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LC_MONETARY = "en_AU.UTF-8";
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LC_NAME = "en_AU.UTF-8";
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LC_NUMERIC = "en_AU.UTF-8";
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LC_PAPER = "en_AU.UTF-8";
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LC_TELEPHONE = "en_AU.UTF-8";
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LC_TIME = "en_AU.UTF-8";
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};
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# Configure keymap in X11
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services.xserver.xkb = {
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layout = "au";
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variant = "";
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};
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# Define a user account. Don't forget to set a password with ‘passwd’.
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users.users.nixosbm = {
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isNormalUser = true;
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description = "NixOS Build Machine";
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extraGroups = ["networkmanager" "wheel"];
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packages = with pkgs; [];
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};
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# Remote builder server setup
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users.users.nixremote = {
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isNormalUser = true;
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description = "Nix Remote Builder";
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home = "/home/nixremote";
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createHome = true;
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# Lock the user account (no login shell)
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shell = pkgs.shadow;
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# SSH key for remote builds
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openssh.authorizedKeys.keys = [
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# Add the public key from your client machines here
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# Example: "ssh-ed25519 AAAAC3... root@client-machine"
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];
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};
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systemd.tmpfiles.rules = [
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"z /home/nixremote 0555 nixremote nixremote - -"
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"z /home/nixremote/.ssh 0555 nixremote nixremote - -"
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];
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# Allow unfree packages
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nixpkgs.config.allowUnfree = true;
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# List packages installed in system profile. To search, run:
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# $ nix search wget
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environment.systemPackages = with pkgs; [
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# vim # Do not forget to add an editor to edit configuration.nix! The Nano editor is also installed by default.
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wget
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fastfetch
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hyfetch
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helix
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];
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# Some programs need SUID wrappers, can be configured further or are
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# started in user sessions.
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# programs.mtr.enable = true;
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programs.gnupg.agent = {
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enable = true;
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enableSSHSupport = true;
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};
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# List services that you want to enable:
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# Enable the OpenSSH daemon.
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services.openssh.enable = true;
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# Open ports in the firewall.
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# networking.firewall.allowedTCPPorts = [ ... ];
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# networking.firewall.allowedUDPPorts = [ ... ];
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# Or disable the firewall altogether.
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# networking.firewall.enable = false;
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# Attach the system to the IPFire network: set a static IP on the Proxmox bridge (ens18)
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# Adjust `ens18` and the address below to your environment.
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networking.interfaces.ens18.ipv4.addresses = [
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{
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address = "10.1.1.3";
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#dns = "10.1.1.2";
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prefixLength = 24;
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}
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];
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networking.defaultGateway = "10.1.1.1";
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environment.etc."resolv.conf".text = ''
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nameserver 10.1.1.2
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'';
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# This value determines the NixOS release from which the default
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# settings for stateful data, like file locations and database versions
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# on your system were taken. It‘s perfectly fine and recommended to leave
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# this value at the release version of the first install of this system.
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# Before changing this value read the documentation for this option
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# (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
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system.stateVersion = "25.11"; # Did you read the comment?
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# THE FOLLOWING CODE BLOCK IS FOR COPYING TO OTHER CONFIGURATIONS, NOT FOR THIS FILE
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# nix.distributedBuilds = true;
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# nix.buildMachines = [
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# {
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# hostName = "nixos-build-machine";
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# system = "x86_64-linux";
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# sshUser = "nixremote";
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# sshKey = "/root/.ssh/nixremote";
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# maxJobs = 4;
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# speedFactor = 2;
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# supportedFeatures = [ "nixos-test" "benchmark" "big-parallel" "kvm" ];
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# }
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# ];
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#
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# Generate SSH key for remote building
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#systemd.services.generate-nixremote-key = {
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# description = "Generate SSH key for remote Nix builds";
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# wantedBy = [ "multi-user.target" ];
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# serviceConfig = {
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# Type = "oneshot";
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# RemainAfterExit = true;
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# };
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# script = ''
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# if [ ! -f /root/.ssh/nixremote ]; then
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# ${pkgs.openssh}/bin/ssh-keygen -t ed25519 -f /root/.ssh/nixremote -N "" -C "nix-remote-builder"
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# fi
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# '';
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#};
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#
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#programs.ssh.extraConfig = ''
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# Host nixos-build-machine
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# HostName 192.168.1.175
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# IdentitiesOnly yes
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# IdentityFile /root/.ssh/nixremote
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# User nixremoteStrictHostKeyChecking accept-new
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#'';
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#
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# Manual step required: After rebuilding the client, copy /root/.ssh/nixremote.pub
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# from the client to the build machine's users.users.nixremote.openssh.authorizedKeys.keys list,
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# then rebuild the build machine.
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# i.e on the client: run "cat /root.ssh/nixremote.pub"
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# and copy the output to the build machine's configuration.nix
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}
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