My own copy of Tangled :)
add nixos module for knotserver
nearly there; some hardcoded paths need tweaking for push to work
author
Akshay
date
(Mar 4, 2025, 5:05 PM UTC)
commit
a0a647fb
a0a647fb5b0608680002c8fcfcd22472f977536d
parent
c2e7bdab
c2e7bdaba83aed2ae43b3b2522ff4fc455f62a0b
+158
-1
+158
-1
flake.nix
+158
-1
flake.nix
···
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pkgs.litecli
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pkgs.websocat
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pkgs.tailwindcss
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+
pkgs.nixos-shell
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];
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shellHook = ''
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cp -f ${htmx-src} appview/pages/static/htmx.min.js
···
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};
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});
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-
nixosModules.default = {
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nixosModules.appview = {
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config,
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pkgs,
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lib,
···
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};
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};
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};
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+
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nixosModules.knotserver = {
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config,
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pkgs,
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lib,
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...
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}:
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with lib; {
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options = {
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services.tangled-knotserver = {
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enable = mkOption {
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type = types.bool;
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default = false;
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description = "Enable a tangled knotserver";
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};
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+
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appviewEndpoint = mkOption {
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type = types.str;
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default = "https://tangled.sh";
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description = "Appview endpoint";
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};
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+
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gitUser = mkOption {
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type = types.str;
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default = "git";
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description = "User that hosts git repos and performs git operations";
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};
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+
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repo = {
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scanPath = mkOption {
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type = types.path;
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default = "/home/git";
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description = "Path where repositories are scanned from";
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};
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+
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mainBranch = mkOption {
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type = types.str;
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default = "main";
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description = "Default branch name for repositories";
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};
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};
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+
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server = {
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listenAddr = mkOption {
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type = types.str;
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default = "0.0.0.0:5555";
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description = "Address to listen on";
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};
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+
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internalListenAddr = mkOption {
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type = types.str;
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default = "127.0.0.1:5444";
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description = "Internal address for inter-service communication";
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};
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+
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secret = mkOption {
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type = types.str;
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example = "super-secret-key";
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description = "Secret key provided by appview (required)";
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};
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+
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dbPath = mkOption {
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type = types.path;
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default = "knotserver.db";
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description = "Path to the database file";
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};
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+
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hostname = mkOption {
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type = types.str;
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example = "knot.tangled.sh";
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description = "Hostname for the server (required)";
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};
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+
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dev = mkOption {
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type = types.bool;
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default = false;
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description = "Enable development mode (disables signature verification)";
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};
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};
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};
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};
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config = mkIf config.services.tangled-knotserver.enable {
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nixpkgs.overlays = [self.overlays.default];
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environment.systemPackages = with pkgs; [git];
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+
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users.users.git = {
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isSystemUser = true;
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home = "/home/git";
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createHome = true;
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shell = "${pkgs.shadow}/bin/nologin";
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uid = 1000;
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group = "git";
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extraGroups = ["sudo"];
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};
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users.groups.git = {};
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+
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services.openssh = {
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enable = true;
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extraConfig = ''
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Match User git
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AuthorizedKeysCommand ${pkgs.keyfetch}/bin/keyfetch -repoguard-path ${pkgs.repoguard}/bin/repoguard
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AuthorizedKeysCommandUser nobody
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'';
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};
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+
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systemd.services.knotserver = {
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description = "knotserver service";
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after = ["network.target" "sshd.service"];
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wantedBy = ["multi-user.target"];
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serviceConfig = {
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User = "git";
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WorkingDirectory = "/home/git";
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Environment = [
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"KNOT_REPO_SCAN_PATH=${config.services.tangled-knotserver.repo.scanPath}"
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"APPVIEW_ENDPOINT=${config.services.tangled-knotserver.appviewEndpoint}"
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"KNOT_SERVER_INTERNAL_LISTEN_ADDR=${config.services.tangled-knotserver.server.internalListenAddr}"
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"KNOT_SERVER_LISTEN_ADDR=${config.services.tangled-knotserver.server.listenAddr}"
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"KNOT_SERVER_SECRET=${config.services.tangled-knotserver.server.secret}"
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"KNOT_SERVER_HOSTNAME=${config.services.tangled-knotserver.server.hostname}"
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];
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ExecStart = "${pkgs.knotserver}/bin/knotserver";
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Restart = "always";
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};
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};
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+
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networking.firewall.allowedTCPPorts = [22];
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};
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};
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nixosConfigurations.knotVM = nixpkgs.lib.nixosSystem {
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system = "x86_64-linux";
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modules = [
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self.nixosModules.knotserver
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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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virtualisation.memorySize = 2048;
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virtualisation.cores = 2;
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services.getty.autologinUser = "root";
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environment.systemPackages = with pkgs; [curl vim git];
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services.tangled-knotserver = {
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enable = true;
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server = {
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secret = "21c9c8b2a405bcfb14694481e32bab09d842c2f4cc0437906b68015d32f15b97";
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hostname = "localhost:6000";
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listenAddr = "0.0.0.0:6000";
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};
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};
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})
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];
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};
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};
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}