[Add] Nix Flake
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78
flake.lock
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78
flake.lock
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{
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"nodes": {
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"flake-parts": {
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"inputs": {
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"nixpkgs-lib": "nixpkgs-lib"
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},
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"locked": {
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"lastModified": 1778716662,
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"narHash": "sha256-m1Yf0wZ8j1OHjTc2UwHwyQRSnNeSgLJOd7q5Y45hzi4=",
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"owner": "hercules-ci",
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"repo": "flake-parts",
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"rev": "f7c1a2d347e4c52d5fb8d10cb4d94b5884e546fb",
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"type": "github"
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},
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"original": {
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"owner": "hercules-ci",
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"repo": "flake-parts",
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"type": "github"
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}
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},
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"nixpkgs": {
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"locked": {
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"lastModified": 1778869304,
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"narHash": "sha256-30sZNZoA1cqF5JNO9fVX+wgiQYjB7HJqqJ4ztCDeBZE=",
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"owner": "nixos",
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"repo": "nixpkgs",
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"rev": "d233902339c02a9c334e7e593de68855ad26c4cb",
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"type": "github"
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},
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"original": {
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"owner": "nixos",
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"ref": "nixos-unstable",
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"repo": "nixpkgs",
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"type": "github"
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}
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},
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"nixpkgs-lib": {
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"locked": {
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"lastModified": 1777168982,
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"narHash": "sha256-GOkGPcboWE9BmGCRMLX3worL4EMnsnG8MyKmXNeYuhQ=",
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"owner": "nix-community",
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"repo": "nixpkgs.lib",
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"rev": "f5901329dade4a6ea039af1433fb087bd9c1fe14",
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"type": "github"
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},
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"original": {
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"owner": "nix-community",
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"repo": "nixpkgs.lib",
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"type": "github"
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}
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},
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"root": {
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"inputs": {
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"flake-parts": "flake-parts",
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"nixpkgs": "nixpkgs",
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"ttp": "ttp"
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}
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},
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"ttp": {
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"flake": false,
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"locked": {
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"lastModified": 1778329030,
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"narHash": "sha256-qEEPlOuGVco1g6lI/kfEvIZkJmBbjehuchGWPTywR10=",
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"rev": "929cb9d3a6aebebe6365973f13062ac2a8e03af6",
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"revCount": 115,
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"type": "git",
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"url": "https://git.methanium.net/Tensamin/TTP.git"
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},
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"original": {
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"rev": "929cb9d3a6aebebe6365973f13062ac2a8e03af6",
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"type": "git",
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"url": "https://git.methanium.net/Tensamin/TTP.git"
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}
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}
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},
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"root": "root",
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"version": 7
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}
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206
flake.nix
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206
flake.nix
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{
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description = "Iota";
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inputs = {
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nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
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flake-parts.url = "github:hercules-ci/flake-parts";
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ttp = {
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url = "git+https://git.methanium.net/Tensamin/TTP.git?rev=929cb9d3a6aebebe6365973f13062ac2a8e03af6";
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flake = false;
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};
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};
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outputs = inputs@{ self, nixpkgs, flake-parts, ttp, ... }:
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flake-parts.lib.mkFlake { inherit inputs; } {
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systems = [
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"x86_64-linux"
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"aarch64-linux"
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"x86_64-darwin"
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"aarch64-darwin"
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];
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perSystem = { self', pkgs, ... }: {
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packages = {
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default = self'.packages.iota;
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iota = pkgs.rustPlatform.buildRustPackage {
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pname = "iota";
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version = "0.1.0";
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src = ./.;
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cargoLock = {
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lockFile = ./Cargo.lock;
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allowBuiltinFetchGit = true;
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};
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nativeBuildInputs = with pkgs; [ cmake perl pkg-config ];
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buildInputs = with pkgs; [ openssl sqlite ];
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dontUseCmakeConfigure = true;
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preConfigure = ''
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if [ -d ../cargo-vendor-dir/ttp-core-0.1.0 ]; then
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cp ${ttp}/ttp-codec.json ../cargo-vendor-dir/ttp-codec.json
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fi
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'';
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postInstall = ''
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mv $out/bin/iota-core $out/bin/iota
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for f in $out/bin/*; do
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if [ "$(basename "$f")" != "iota" ]; then
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rm "$f"
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fi
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done
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'';
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passthru.dataDir = "/var/lib/iota";
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};
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};
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};
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flake = {
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nixosModules.default = { config, pkgs, lib, ... }:
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let
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cfg = config.services.iota;
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defaultPackage = self.packages.${pkgs.stdenv.hostPlatform.system}.default or (throw "iota: no pre-built package for system ${pkgs.stdenv.hostPlatform.system}");
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configFile = if cfg.settingsFile != null then cfg.settingsFile else
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pkgs.writeText "iota-config.json" (builtins.toJSON cfg.settings);
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descriptionText = "Iota Service"
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+ lib.optionalString cfg.useTmux " (attach TUI: tmux -S ${cfg.dataDir}/tmux.sock attach -t iota)";
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in
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{
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options.services.iota = {
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enable = lib.mkEnableOption "the Iota service";
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dataDir = lib.mkOption {
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type = lib.types.str;
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default = cfg.package.passthru.dataDir or "/var/lib/iota";
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defaultText = lib.literalExpression ''config.services.iota.package.passthru.dataDir or "/var/lib/iota"'';
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description = "Directory where Iota stores its data, config, and certificates.";
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};
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certFile = lib.mkOption {
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type = lib.types.nullOr lib.types.path;
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default = null;
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description = "Path to the SSL certificate file (cert.pem).";
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};
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keyFile = lib.mkOption {
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type = lib.types.nullOr lib.types.path;
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default = null;
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description = "Path to the SSL private key file (cert.key).";
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};
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environmentFiles = lib.mkOption {
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type = lib.types.listOf lib.types.path;
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default = [ ];
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description = "Environment files to load for the Iota service.";
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};
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openFirewall = lib.mkOption {
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type = lib.types.bool;
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default = true;
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description = "Whether to open the firewall for ports used by Iota.";
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};
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package = lib.mkOption {
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type = lib.types.package;
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default = defaultPackage;
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description = "The Iota package to use.";
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};
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useTmux = lib.mkOption {
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type = lib.types.bool;
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default = true;
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description = "Whether to run Iota inside a tmux session for shared TUI access.";
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};
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settings = lib.mkOption {
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type = lib.types.attrs;
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default = { };
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description = "Configuration attributes for Iota, written to config.json.";
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};
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settingsFile = lib.mkOption {
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type = lib.types.nullOr lib.types.path;
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default = null;
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description = "Path to an existing config.json file to use instead of generating from settings.";
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};
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};
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config = lib.mkIf cfg.enable {
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users.users.iota = {
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isSystemUser = true;
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group = "iota";
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home = cfg.dataDir;
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createHome = true;
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description = "Iota service user";
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};
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users.groups.iota = { };
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systemd.services.iota = {
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description = descriptionText;
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wantedBy = [ "multi-user.target" ];
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after = [ "network.target" ];
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serviceConfig = {
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Type = "simple";
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User = "iota";
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Group = "iota";
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WorkingDirectory = cfg.dataDir;
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ExecStart = if cfg.useTmux then
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pkgs.writeShellScript "iota-start" ''
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${pkgs.tmux}/bin/tmux -S ${cfg.dataDir}/tmux.sock new-session -d -s iota ${cfg.package}/bin/iota
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while ${pkgs.tmux}/bin/tmux -S ${cfg.dataDir}/tmux.sock has-session -t iota 2>/dev/null; do
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sleep 2
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done
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''
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else
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"${cfg.package}/bin/iota";
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ExecStartPre = [
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("+" + pkgs.writeShellScript "iota-setup" ''
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mkdir -p ${cfg.dataDir}/certs
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${lib.optionalString (cfg.certFile != null) "ln -sf ${cfg.certFile} ${cfg.dataDir}/certs/cert.pem"}
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${lib.optionalString (cfg.keyFile != null) "ln -sf ${cfg.keyFile} ${cfg.dataDir}/certs/cert.key"}
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install -m 644 ${configFile} ${cfg.dataDir}/config.json
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chown -R iota:iota ${cfg.dataDir}
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${lib.optionalString cfg.useTmux ''
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echo "Iota started under tmux. Attach with: tmux -S ${cfg.dataDir}/tmux.sock attach -t iota" >&2
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''}
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'')
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];
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Restart = "unless-stopped";
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RestartSec = "5";
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AmbientCapabilities = [ "CAP_NET_BIND_SERVICE" ];
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CapabilityBoundingSet = [ "CAP_NET_BIND_SERVICE" ];
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ProtectSystem = "strict";
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ProtectHome = true;
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PrivateTmp = true;
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NoNewPrivileges = true;
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ReadWritePaths = [ cfg.dataDir ];
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ProtectKernelTunables = true;
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ProtectKernelModules = true;
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ProtectControlGroups = true;
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RestrictRealtime = true;
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RestrictSUIDSGID = true;
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LockPersonality = true;
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MemoryDenyWriteExecute = true;
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} // lib.optionalAttrs (cfg.environmentFiles != [ ]) {
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EnvironmentFile = cfg.environmentFiles;
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};
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};
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networking.firewall = lib.mkIf cfg.openFirewall {
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allowedTCPPorts = [ 1984 ];
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allowedUDPPorts = [ 1984 ];
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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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