flake rework

flake.lock

@@ -15,37 +15,7 @@
         "type": "github"
       }
     },
-    "naersk": {
-      "inputs": {
-        "nixpkgs": "nixpkgs"
-      },
-      "locked": {
-        "lastModified": 1655042882,
-        "narHash": "sha256-9BX8Fuez5YJlN7cdPO63InoyBy7dm3VlJkkmTt6fS1A=",
-        "owner": "nix-community",
-        "repo": "naersk",
-        "rev": "cddffb5aa211f50c4b8750adbec0bbbdfb26bb9f",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-community",
-        "repo": "naersk",
-        "type": "github"
-      }
-    },
     "nixpkgs": {
-      "locked": {
-        "lastModified": 0,
-        "narHash": "sha256-WbZKCf6g4+dljZ6Z866SGZzNA+WWjXt4Lc7td4zsRkw=",
-        "path": "/nix/store/vavqvhqw8x42kqb1m3wkcys65jvvnl5i-source",
-        "type": "path"
-      },
-      "original": {
-        "id": "nixpkgs",
-        "type": "indirect"
-      }
-    },
-    "nixpkgs_2": {
       "locked": {
         "lastModified": 1707514827,
         "narHash": "sha256-Y+wqFkvikpE1epCx57PsGw+M1hX5aY5q/xgk+ebDwxI=",
@@ -63,8 +33,7 @@
     "root": {
       "inputs": {
         "flake-utils": "flake-utils",
-        "naersk": "naersk",
-        "nixpkgs": "nixpkgs_2"
+        "nixpkgs": "nixpkgs"
       }
     }
   },

flake.nix

@@ -2,111 +2,52 @@
   inputs = {
     nixpkgs.url = "nixpkgs/release-23.11";
     flake-utils.url = "github:numtide/flake-utils";
-    naersk.url = "github:nix-community/naersk";
   };
 
   outputs = {
     self,
     nixpkgs,
     flake-utils,
-    naersk,
   }:
     flake-utils.lib.eachDefaultSystem (
       system: let
-        pkgs = nixpkgs.legacyPackages."${system}";
-        naersk-lib = naersk.lib."${system}";
+        overlays = [
+          (import ./overlay.nix)
+        ];
+        pkgs = import nixpkgs {
+          inherit system overlays;
+        };
       in rec {
-        # `nix build`
-        packages.log-normalizer = naersk-lib.buildPackage {
-          pname = "log-normalizer";
-          root = ./.;
-
-          SQLX_OFFLINE = 1;
+        packages = rec {
+          inherit (pkgs) log-normalizer;
+          default = log-normalizer;
         };
-        defaultPackage = packages.log-normalizer;
-        defaultApp = packages.log-normalizer;
 
-        # `nix develop`
-        devShell = pkgs.mkShell {
-          nativeBuildInputs = with pkgs; [rustc cargo bacon cargo-edit cargo-outdated cargo-insta];
+        devShells.default = pkgs.mkShell {
+          nativeBuildInputs = with pkgs; [
+            rustc
+            cargo
+            bacon
+            clippy
+            cargo-edit
+            cargo-outdated
+            cargo-insta
+          ];
         };
       }
     )
     // {
-      nixosModule = {
+      overlays.default = import ./overlay.nix;
+      nixosModules.default = {
+        pkgs,
         config,
         lib,
-        pkgs,
         ...
-      }:
-        with lib; let
-          cfg = config.services.log-normalizer;
-        in {
-          options.services.log-normalizer = {
-            enable = mkEnableOption "Log normalizer";
-
-            user = mkOption {
-              type = types.str;
-              description = "user to run as";
-            };
-
-            databaseUrlFile = mkOption {
-              type = types.str;
-              description = "file containg DATABASE_URL variable";
-            };
-
-            rawDatabaseUrlFile = mkOption {
-              type = types.str;
-              description = "file containg RAW_DATABASE_URL variable";
-            };
-
-            logLevel = mkOption {
-              type = types.str;
-              default = "info,sqlx=warn";
-              description = "log level";
-            };
-          };
-
-          config = mkIf cfg.enable {
-            systemd.services."log-normalizer" = let
-              pkg = self.defaultPackage.${pkgs.system};
-            in {
-              wantedBy = ["multi-user.target"];
-              script = "${pkg}/bin/log-normalizer";
-              environment = {
-                RUST_LOG = cfg.logLevel;
-              };
-
-              serviceConfig = {
-                EnvironmentFile = [cfg.databaseUrlFile cfg.rawDatabaseUrlFile];
-                Restart = "on-failure";
-                User = cfg.user;
-                PrivateTmp = true;
-                ProtectSystem = "strict";
-                ProtectHome = true;
-                NoNewPrivileges = true;
-                PrivateDevices = true;
-                ProtectClock = true;
-                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_UNIX";
-                RestrictRealtime = true;
-                ProtectProc = "noaccess";
-                SystemCallFilter = ["@system-service" "~@resources" "~@privileged"];
-                IPAddressDeny = "any";
-                IPAddressAllow = "localhost";
-                PrivateUsers = true;
-                ProcSubset = "pid";
-              };
-            };
+      }: {
+        imports = [./module.nix];
+        config = lib.mkIf config.services.log-normalizer.enable {
+          nixpkgs.overlays = [self.overlays.default];
+          services.log-normalizer.package = lib.mkDefault pkgs.log-normalizer;
         };
       };
     };

module.nix

@@ -0,0 +1,79 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+with lib; let
+  cfg = config.services.log-normalizer;
+in {
+  options.services.log-normalizer = {
+    enable = mkEnableOption "Log normalizer";
+
+    user = mkOption {
+      type = types.str;
+      description = "user to run as";
+    };
+
+    databaseUrlFile = mkOption {
+      type = types.str;
+      description = "file containg DATABASE_URL variable";
+    };
+
+    rawDatabaseUrlFile = mkOption {
+      type = types.str;
+      description = "file containg RAW_DATABASE_URL variable";
+    };
+
+    logLevel = mkOption {
+      type = types.str;
+      default = "info,sqlx=warn";
+      description = "log level";
+    };
+
+    package = mkOption {
+      type = types.package;
+      description = "package to use";
+    };
+  };
+
+  config = mkIf cfg.enable {
+    systemd.services.log-normalizer = {
+      wantedBy = ["multi-user.target"];
+      environment = {
+        RUST_LOG = cfg.logLevel;
+      };
+
+      serviceConfig = {
+        EnvironmentFile = [cfg.databaseUrlFile cfg.rawDatabaseUrlFile];
+        ExecStart = "${cfg.package}/bin/log-normalizer";
+        Restart = "on-failure";
+        User = cfg.user;
+        PrivateTmp = true;
+        ProtectSystem = "strict";
+        ProtectHome = true;
+        NoNewPrivileges = true;
+        PrivateDevices = true;
+        ProtectClock = true;
+        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_UNIX";
+        RestrictRealtime = true;
+        ProtectProc = "noaccess";
+        SystemCallFilter = ["@system-service" "~@resources" "~@privileged"];
+        IPAddressDeny = "any";
+        IPAddressAllow = "localhost";
+        PrivateUsers = true;
+        ProcSubset = "pid";
+      };
+    };
+  };
+}

overlay.nix

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

package.nix

@@ -0,0 +1,20 @@
+{
+  stdenv,
+  rustPlatform,
+  lib,
+}: let
+  inherit (lib.sources) sourceByRegex;
+  src = sourceByRegex ./. ["Cargo.*" "(src|tests|sqlx-data.json)(/.*)?"];
+in
+  rustPlatform.buildRustPackage rec {
+    pname = "log-normalizer";
+    version = "0.1.0";
+
+    SQLX_OFFLINE = 1;
+
+    inherit src;
+
+    cargoLock = {
+      lockFile = ./Cargo.lock;
+    };
+  }