flake reorg

flake.nix

@@ -21,7 +21,10 @@
     cross-naersk,
   }:
     utils.lib.eachDefaultSystem (system: let
-      overlays = [ (import rust-overlay) ];
+      overlays = [
+        (import rust-overlay)
+        (import ./overlay.nix)
+      ];
       pkgs = import nixpkgs {
         inherit system overlays;
       };
@@ -44,30 +47,27 @@
 
       cross-naersk' = pkgs.callPackage cross-naersk {inherit naersk;};
 
-      addUdev = ''
-        mkdir -p $out/lib/udev/rules.d/
-        echo 'SUBSYSTEM=="powercap", ACTION=="add", RUN+="${pkgs.coreutils-full}/bin/chgrp -R powermonitoring /sys%p", RUN+="${pkgs.coreutils-full}/bin/chmod -R g=u /sys%p"' >> $out/lib/udev/rules.d/51-palantir.rules
-               echo 'SUBSYSTEM=="powercap", ACTION=="change", ENV{TRIGGER}!="none", RUN+="${pkgs.coreutils-full}/bin/chgrp -R powermonitoring /sys%p", RUN+="${pkgs.coreutils-full}/bin/chmod -R g=u /sys%p"' >> $out/lib/udev/rules.d/51-palantir.rules
-      '';
-
       src = lib.sources.sourceByRegex (lib.cleanSource ./.) ["Cargo.*" "(src|benches)(/.*)?"];
 
       nearskOpt = {
         pname = "palantir";
         root = src;
 
-        postInstall = addUdev;
+        postInstall = pkgs.palantir.postInstall;
       };
       buildTarget = target: (cross-naersk'.buildPackage target) nearskOpt;
       hostNaersk = cross-naersk'.hostNaersk;
     in rec {
-      # `nix build`
+      packages =
-      packages = nixpkgs.lib.attrsets.genAttrs targets buildTarget // rec {
+        nixpkgs.lib.attrsets.genAttrs targets buildTarget
-        palantir = packages.${hostTarget};
+        // rec {
-        check = hostNaersk.buildPackage (nearskOpt // {
+          palantir = pkgs.palantir;
+          check = hostNaersk.buildPackage (nearskOpt
+            // {
               mode = "check";
             });
-        clippy = hostNaersk.buildPackage (nearskOpt // {
+          clippy = hostNaersk.buildPackage (nearskOpt
+            // {
               mode = "clippy";
             });
           default = palantir;
@@ -80,11 +80,13 @@
 
       inherit targets;
       releaseMatrix = {
-        include = builtins.map (target: {
+        include =
+          builtins.map (target: {
             inherit target;
             artifact_name = artifactForTarget target;
             asset_name = assetNameForTarget target;
-        }) releaseTargets;
+          })
+          releaseTargets;
       };
 
       # `nix develop`
@@ -95,109 +97,17 @@
       };
     })
     // {
-      nixosModule = {
+      overlays = import ./overlay.nix;
+      modules.default = {
+        pkgs,
         config,
         lib,
-        pkgs,
         ...
-      }:
+      }: {
-        with lib; let
+        imports = [./module.nix];
-          cfg = config.palantir.services.palantir;
+        config = lib.mkIf config.services.palantir.enable {
-        in {
+          nixpkgs.overlays = [self.overlays.default];
-          options.palantir.services.palantir = {
+          services.palantir.package = lib.mkDefault pkgs.palantir;
-            enable = mkEnableOption "Enables the palantir service";
-
-            port = mkOption rec {
-              type = types.int;
-              default = 5665;
-              example = default;
-              description = "The port to listen on";
-            };
-
-            zfs = mkOption rec {
-              type = types.bool;
-              default = false;
-              example = true;
-              description = "enable zfs integration";
-            };
-
-            docker = mkOption rec {
-              type = types.bool;
-              default = false;
-              example = true;
-              description = "enable docker integration";
-            };
-
-            mdns = mkOption rec {
-              type = types.bool;
-              default = true;
-              example = true;
-              description = "enable mdns discovery";
-            };
-
-            openPort = mkOption rec {
-              type = types.bool;
-              default = false;
-              example = true;
-              description = "open port";
-            };
-
-            openMDNSPort = mkOption rec {
-              type = types.bool;
-              default = false;
-              example = true;
-              description = "open mdns port";
-            };
-          };
-
-          config = mkIf cfg.enable {
-            networking.firewall.allowedTCPPorts = lib.optional cfg.openPort cfg.port;
-            networking.firewall.allowedUDPPorts = lib.optional cfg.openMDNSPort 5353;
-
-            users.groups.powermonitoring = {};
-
-            services.udev.packages = [self.packages.${pkgs.system}.default];
-
-            systemd.services."palantir" = {
-              wantedBy = ["multi-user.target"];
-              path = lib.optional cfg.zfs pkgs.zfs;
-              environment = {
-                PORT = "${toString cfg.port}";
-                LD_LIBRARY_PATH = "/run/opengl-driver/lib/"; # needed for nvidia
-              } // (if (cfg.mdns == false) then {
-                DISABLE_MDNS = "true";
-              } else {});
-
-              serviceConfig = let
-                pkg = self.packages.${pkgs.system}.default;
-              in {
-                Restart = "on-failure";
-                ExecStart = "${pkg}/bin/palantir";
-                DynamicUser = true;
-                PrivateTmp = true;
-                PrivateUsers = true;
-                ProtectSystem = "strict";
-                ProtectHome = true;
-                NoNewPrivileges = true;
-                ProtectClock = !cfg.zfs; # Enabling this breaks libzfs
-                CapabilityBoundingSet = true;
-                ProtectKernelLogs = true;
-                ProtectControlGroups = true;
-                SystemCallArchitectures = "native";
-                ProtectKernelModules = true;
-                RestrictNamespaces = true;
-                MemoryDenyWriteExecute = true;
-                ProtectHostname = true;
-                LockPersonality = true;
-                ProtectKernelTunables = true;
-                RestrictAddressFamilies = ["AF_INET" "AF_INET6" "AF_NETLINK"] ++ lib.optional cfg.docker "AF_UNIX"; # netlink is required to make `getifaddrs` not err
-                RestrictRealtime = true;
-                SystemCallFilter = ["@system-service" "~@resources" "~@privileged"];
-                IPAddressAllow = ["localhost"] ++ lib.optional cfg.mdns "multicast";
-                UMask = "0077";
-                SupplementaryGroups = ["powermonitoring"] ++ lib.optional cfg.docker "docker";
-              };
-            };
         };
       };
     };

module.nix

@@ -0,0 +1,114 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+with lib; let
+  cfg = config.palantir.services.palantir;
+in {
+  options.palantir.services.palantir = {
+    enable = mkEnableOption "Enables the palantir service";
+
+    port = mkOption rec {
+      type = types.int;
+      default = 5665;
+      example = default;
+      description = "The port to listen on";
+    };
+
+    zfs = mkOption rec {
+      type = types.bool;
+      default = false;
+      example = true;
+      description = "enable zfs integration";
+    };
+
+    docker = mkOption rec {
+      type = types.bool;
+      default = false;
+      example = true;
+      description = "enable docker integration";
+    };
+
+    mdns = mkOption rec {
+      type = types.bool;
+      default = true;
+      example = true;
+      description = "enable mdns discovery";
+    };
+
+    openPort = mkOption rec {
+      type = types.bool;
+      default = false;
+      example = true;
+      description = "open port";
+    };
+
+    openMDNSPort = mkOption rec {
+      type = types.bool;
+      default = false;
+      example = true;
+      description = "open mdns port";
+    };
+
+    package = mkOption {
+      type = types.package;
+      description = "package to use";
+    };
+  };
+
+  config = mkIf cfg.enable {
+    networking.firewall.allowedTCPPorts = lib.optional cfg.openPort cfg.port;
+    networking.firewall.allowedUDPPorts = lib.optional cfg.openMDNSPort 5353;
+
+    users.groups.powermonitoring = {};
+
+    services.udev.packages = [cfg.package];
+
+    systemd.services."palantir" = {
+      wantedBy = ["multi-user.target"];
+      path = lib.optional cfg.zfs pkgs.zfs;
+      environment =
+        {
+          PORT = "${toString cfg.port}";
+          LD_LIBRARY_PATH = "/run/opengl-driver/lib/"; # needed for nvidia
+        }
+        // (
+          if (cfg.mdns == false)
+          then {
+            DISABLE_MDNS = "true";
+          }
+          else {}
+        );
+
+      serviceConfig = {
+        Restart = "on-failure";
+        ExecStart = "${cfg.package}/bin/palantir";
+        DynamicUser = true;
+        PrivateTmp = true;
+        PrivateUsers = true;
+        ProtectSystem = "strict";
+        ProtectHome = true;
+        NoNewPrivileges = true;
+        ProtectClock = !cfg.zfs; # Enabling this breaks libzfs
+        CapabilityBoundingSet = true;
+        ProtectKernelLogs = true;
+        ProtectControlGroups = true;
+        SystemCallArchitectures = "native";
+        ProtectKernelModules = true;
+        RestrictNamespaces = true;
+        MemoryDenyWriteExecute = true;
+        ProtectHostname = true;
+        LockPersonality = true;
+        ProtectKernelTunables = true;
+        RestrictAddressFamilies = ["AF_INET" "AF_INET6" "AF_NETLINK"] ++ lib.optional cfg.docker "AF_UNIX"; # netlink is required to make `getifaddrs` not err
+        RestrictRealtime = true;
+        SystemCallFilter = ["@system-service" "~@resources" "~@privileged"];
+        IPAddressAllow = ["localhost"] ++ lib.optional cfg.mdns "multicast";
+        UMask = "0077";
+        SupplementaryGroups = ["powermonitoring"] ++ lib.optional cfg.docker "docker";
+      };
+    };
+  };
+}

overlay.nix

@@ -0,0 +1,3 @@
+final: prev: {
+  palantir = final.callPackage ./package.nix {};
+}

package.nix

@@ -0,0 +1,25 @@
+{
+  stdenv,
+  rustPlatform,
+  coreutils,
+  lib,
+}: let
+  inherit (lib.sources) sourceByRegex;
+  src = sourceByRegex ./. ["Cargo.*" "(src|benches)(/.*)?"];
+in
+  rustPlatform.buildRustPackage rec {
+    name = "palantir";
+    version = "0.1.0";
+
+    inherit src;
+
+    cargoLock = {
+      lockFile = ./Cargo.lock;
+    };
+
+    postInstall = ''
+      mkdir -p $out/lib/udev/rules.d/
+      echo 'SUBSYSTEM=="powercap", ACTION=="add", RUN+="${coreutils}/bin/chgrp -R powermonitoring /sys%p", RUN+="${coreutils}/bin/chmod -R g=u /sys%p"' >> $out/lib/udev/rules.d/51-palantir.rules
+             echo 'SUBSYSTEM=="powercap", ACTION=="change", ENV{TRIGGER}!="none", RUN+="${coreutils}/bin/chgrp -R powermonitoring /sys%p", RUN+="${coreutils}/bin/chmod -R g=u /sys%p"' >> $out/lib/udev/rules.d/51-palantir.rules
+    '';
+  }