nix module updates

flake.lock

@@ -20,11 +20,11 @@
         "systems": "systems"
       },
       "locked": {
-        "lastModified": 1710146030,
+        "lastModified": 1726560853,
-        "narHash": "sha256-SZ5L6eA7HJ/nmkzGG7/ISclqe6oZdOZTNoesiInkXPQ=",
+        "narHash": "sha256-X6rJYSESBVr3hBoH0WbKE5KvhPU5bloyZ2L4K60/fPQ=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "b1d9ab70662946ef0850d488da1c9019f3a9752a",
+        "rev": "c1dfcf08411b08f6b8615f7d8971a2bfa81d5e8a",
         "type": "github"
       },
       "original": {
@@ -35,11 +35,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1725534445,
+        "lastModified": 1726871744,
-        "narHash": "sha256-Yd0FK9SkWy+ZPuNqUgmVPXokxDgMJoGuNpMEtkfcf84=",
+        "narHash": "sha256-V5LpfdHyQkUF7RfOaDPrZDP+oqz88lTJrMT1+stXNwo=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "9bb1e7571aadf31ddb4af77fc64b2d59580f9a39",
+        "rev": "a1d92660c6b3b7c26fb883500a80ea9d33321be2",
         "type": "github"
       },
       "original": {

flake.nix

@@ -7,15 +7,14 @@
     flake-utils.url = "github:numtide/flake-utils";
   };
 
-  outputs =
+  outputs = {
-    { self
+    self,
-    , nixpkgs
+    nixpkgs,
-    , crane
+    crane,
-    , flake-utils
+    flake-utils,
-    , ...
+    ...
   }:
-    flake-utils.lib.eachDefaultSystem (system:
+    flake-utils.lib.eachDefaultSystem (system: let
-    let
       pkgs = nixpkgs.legacyPackages.${system};
 
       craneLib = crane.mkLib pkgs;
@@ -44,8 +43,7 @@
           # here *without* rebuilding all dependency crates
           # MY_CUSTOM_VAR = "some value";
         });
-    in
+    in {
-    {
       checks = {
         inherit breeze;
       };
@@ -70,17 +68,16 @@
         ];
       };
 
-      nixosModules.breeze =
+      nixosModules.breeze = {
-        { config
+        config,
-        , pkgs
+        pkgs,
-        , lib
+        lib,
-        , ...
+        ...
       }:
         with lib; let
           cfg = config.services.breeze;
           settingsFormat = pkgs.formats.toml {};
-          in
+        in {
-          {
           options = {
             services.breeze = {
               enable = mkEnableOption "breeze file server";
@@ -106,7 +103,7 @@
               extraGroups = mkOption {
                 type = types.listOf types.str;
                 default = [];
-                  description = "Supplementary groups";
+                description = "Any supplementary groups for `breeze` to run under";
               };
 
               settings = mkOption {
@@ -117,6 +114,24 @@
                   There is no formal documentation, but there is an example in the [readme](https://git.min.rip/min/breeze/src/branch/main/README.md).
                 '';
               };
+
+              configDir = mkOption {
+                type = types.path;
+                default = "/etc/breeze";
+                description = ''
+                  The directory on disk to store the `breeze` config file in.
+                  This does not load pre-existing config files, it only defines where the generated config is saved.
+                '';
+              };
+
+              uploadKeyFile = mkOption {
+                type = types.nullOr types.path;
+                default = null;
+                description = ''
+                  File to load the `engine.upload_key` from, if desired.
+                  This is useful for loading it from a secret management system.
+                '';
+              };
             };
           };
 
@@ -128,11 +143,29 @@
 
             users.groups.${cfg.group} = {};
 
-              systemd.services.breeze = {
+            systemd.tmpfiles.rules = [
+              "d '${cfg.configDir}' 0750 ${cfg.user} ${cfg.group} - -"
+            ];
+
+            services.breeze.settings = mkMerge [
+              (mkIf (cfg.uploadKeyFile != null) {engine.upload_key = "@UPLOAD_KEY@";})
+            ];
+
+            systemd.services.breeze = let
+              cfgFile = "${cfg.configDir}/breeze.toml";
+            in {
               description = "breeze file server";
               after = ["local-fs.target" "network.target"];
               wantedBy = ["multi-user.target"];
 
+              preStart =
+                ''
+                  install -m 660 ${settingsFormat.generate "breeze.toml" cfg.settings} ${cfgFile}
+                ''
+                + lib.optionalString (cfg.uploadKeyFile != null) ''
+                  ${pkgs.replace-secret}/bin/replace-secret '@UPLOAD_KEY@' "${cfg.uploadKeyFile}" ${cfgFile}
+                '';
+
               serviceConfig = rec {
                 User = cfg.user;
                 Group = cfg.group;
@@ -143,7 +176,7 @@
                 ExecStart = escapeShellArgs [
                   "${cfg.package}/bin/breeze"
                   "--config"
-                    (settingsFormat.generate "breeze.toml" cfg.settings)
+                  cfgFile
                 ];
                 Restart = "on-failure";
 

nix/module.nix

@@ -1,113 +0,0 @@
-{ config
-, pkgs
-, lib
-, ...
-}:
-with lib; let
-  cfg = config.services.breeze;
-  settingsFormat = pkgs.formats.toml { };
-in
-{
-  options = {
-    services.breeze = {
-      enable = mkEnableOption "breeze file server";
-
-      package = mkPackageOption self.packages.${system} "breeze";
-
-      user = mkOption {
-        type = types.str;
-        default = "breeze";
-        description = "User that `breeze` will run under";
-      };
-
-      group = mkOption {
-        type = types.str;
-        default = "breeze";
-        description = "Group that `breeze` will run under";
-      };
-
-      extraGroups = mkOption {
-        type = types.listOf types.str;
-        default = [ ];
-        description = "Supplementary groups";
-      };
-
-      settings = mkOption {
-        type = settingsFormat.type;
-        default = { };
-        description = ''
-          The *.toml configuration to run `breeze` with.
-          There is no formal documentation, but there is an example in the [readme](https://git.min.rip/min/breeze/src/branch/main/README.md).
-        '';
-      };
-    };
-  };
-
-  config = mkIf cfg.enable {
-    users.users.${cfg.user} = {
-      isSystemUser = true;
-      inherit (cfg) group;
-    };
-
-    users.groups.${cfg.group} = { };
-
-    systemd.services.breeze = {
-      description = "breeze file server";
-      after = [ "local-fs.target" "network.target" ];
-      wantedBy = [ "multi-user.target" ];
-
-      serviceConfig = rec {
-        User = cfg.user;
-        Group = cfg.group;
-        DynamicUser = false; # we write files, so don't do that
-        SupplementaryGroups = cfg.extraGroups;
-        StateDirectory = "breeze";
-        CacheDirectory = "breeze";
-        ExecStart = escapeShellArgs [
-          "${cfg.package}/bin/breeze"
-          "--config"
-          (settingsFormat.generate "breeze.toml" cfg.settings)
-        ];
-        Restart = "on-failure";
-
-        # Security Options #
-
-        NoNewPrivileges = true; # implied by DynamicUser
-        RemoveIPC = true; # implied by DynamicUser
-
-        AmbientCapabilities = "";
-        CapabilityBoundingSet = "";
-
-        DeviceAllow = "";
-
-        LockPersonality = true;
-
-        PrivateTmp = true; # implied by DynamicUser
-        PrivateDevices = true;
-        PrivateUsers = true;
-
-        ProtectClock = true;
-        ProtectControlGroups = true;
-        ProtectHostname = true;
-        ProtectKernelLogs = true;
-        ProtectKernelModules = true;
-        ProtectKernelTunables = true;
-
-        RestrictNamespaces = true;
-        RestrictAddressFamilies = [ "AF_INET" "AF_INET6" "AF_UNIX" ];
-        RestrictRealtime = true;
-        RestrictSUIDSGID = true; # implied by DynamicUser
-
-        SystemCallArchitectures = "native";
-        SystemCallErrorNumber = "EPERM";
-        SystemCallFilter = [
-          "@system-service"
-          "~@keyring"
-          "~@memlock"
-          "~@privileged"
-          "~@setuid"
-        ];
-      };
-    };
-  };
-}